Colloids and Surfaces A: Physicochemical and Engineering Aspects最新文献_第5页

Upgradation of water hyacinth for decontamination of uranium-containing radioactive wastewater with double environmental benefit 提升水葫芦对含铀放射性废水的净化能力，实现双重环境效益

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Pub Date : 2024-11-05 DOI: 10.1016/j.colsurfa.2024.135709

Jin Yu , Xu Zhang , Hai Wang , Longcheng Liu , Yushan Zhou , Chengtao Yue

Water hyacinth is recognized as one of the top ten invasive weeds that pose significant environmental hazards globally. The resourceful utilization of water hyacinth offers substantial ecological benefits. In this work, water hyacinth is employed to synthesize a phosphorylated biochar for the efficient decontamination of uranium-containing radioactive wastewater, thereby achieving dual environmental benefits. The biochar with a large specific surface area of 1328 m²/g and a large pore volume of 0.94 cm³/g is obtained via carbonization of a freeze-dried water hyacinth-phytic acid composite. It possesses a high density of uranophilic phosphoric acid groups, with the surface phosphorus content reaching 0.78 at%. As anticipated, phosphorylated biochar demonstrates superior adsorption performance for uranium (VI) ions. The removal efficiency achieves 99 % in a uranium solution with an initial concentration of 100 mg/L at a dosage of 1.0 g/L within 30 minutes, while the maximum adsorption capacity reaches 478 mg/g. It is proficient in removing uranium across a pH range of 2.2–6.6 and exhibits tolerance under high ionic strength conditions. The distribution coefficient for uranium attains 28.5 L/g, which is significantly higher than that of many other metal ions. Moreover, the biochar is readily regenerated by elution with diluted HNO₃ and reused up to five times without any loss of efficiency. Delightfully, phosphorylated biochar effectively reduces the uranium concentration in actual nuclear wastewater from 16 μg/L to below 4 μg/L. The effective adsorptive decontamination of radioactive wastewater, followed by the incineration of spent biochar, significantly reduces the volume of radioactive waste.

布袋莲是公认的十大入侵杂草之一，对全球环境造成严重危害。对布袋莲的资源化利用具有巨大的生态效益。本研究利用布袋莲合成磷化生物炭，用于有效净化含铀放射性废水，从而实现双重环境效益。通过对冷冻干燥的布袋莲-磷酸复合材料进行碳化，获得了比表面积高达 1328 m2/g、孔隙率高达 0.94 cm3/g 的生物炭。它具有高密度的亲尿磷酸基团，表面磷含量达到 0.78%。正如预期的那样，磷化生物炭对铀（VI）离子具有卓越的吸附性能。在初始浓度为 100 毫克/升、用量为 1.0 克/升的铀溶液中，30 分钟内的去除率达到 99%，最大吸附容量达到 478 毫克/克。它能在 pH 值为 2.2-6.6 的范围内有效去除铀，并在高离子强度条件下表现出耐受性。铀的分布系数达到 28.5 L/g，明显高于许多其他金属离子。此外，用稀释的 HNO₃洗脱后，生物炭很容易再生，并可重复使用五次而不会降低效率。令人欣喜的是，磷化生物炭能有效地将实际核废水中的铀浓度从 16 μg/L 降至 4 μg/L 以下。对放射性废水进行有效的吸附净化，然后对废生物炭进行焚烧，可大大减少放射性废物的体积。

{"title":"Upgradation of water hyacinth for decontamination of uranium-containing radioactive wastewater with double environmental benefit","authors":"Jin Yu , Xu Zhang , Hai Wang , Longcheng Liu , Yushan Zhou , Chengtao Yue","doi":"10.1016/j.colsurfa.2024.135709","DOIUrl":"10.1016/j.colsurfa.2024.135709","url":null,"abstract":"<div><div>Water hyacinth is recognized as one of the top ten invasive weeds that pose significant environmental hazards globally. The resourceful utilization of water hyacinth offers substantial ecological benefits. In this work, water hyacinth is employed to synthesize a phosphorylated biochar for the efficient decontamination of uranium-containing radioactive wastewater, thereby achieving dual environmental benefits. The biochar with a large specific surface area of 1328 m<sup>2</sup>/g and a large pore volume of 0.94 cm<sup>3</sup>/g is obtained via carbonization of a freeze-dried water hyacinth-phytic acid composite. It possesses a high density of uranophilic phosphoric acid groups, with the surface phosphorus content reaching 0.78 at%. As anticipated, phosphorylated biochar demonstrates superior adsorption performance for uranium (VI) ions. The removal efficiency achieves 99 % in a uranium solution with an initial concentration of 100 mg/L at a dosage of 1.0 g/L within 30 minutes, while the maximum adsorption capacity reaches 478 mg/g. It is proficient in removing uranium across a pH range of 2.2–6.6 and exhibits tolerance under high ionic strength conditions. The distribution coefficient for uranium attains 28.5 L/g, which is significantly higher than that of many other metal ions. Moreover, the biochar is readily regenerated by elution with diluted HNO₃ and reused up to five times without any loss of efficiency. Delightfully, phosphorylated biochar effectively reduces the uranium concentration in actual nuclear wastewater from 16 μg/L to below 4 μg/L. The effective adsorptive decontamination of radioactive wastewater, followed by the incineration of spent biochar, significantly reduces the volume of radioactive waste.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135709"},"PeriodicalIF":4.9,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nanoscale Janus particle fabrication and direct observation by super-resolution microscopy 纳米级 Janus 粒子的制造和超分辨率显微镜的直接观察

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Pub Date : 2024-11-05 DOI: 10.1016/j.colsurfa.2024.135684

Noga Yaakov , Raz Cohen , Yogapriya Ravi , Karthik Ananth Mani , Idan Harush , Tali Dadosh , Olga Brontvein , Einat Zelinger , Guy Mechrez

We have developed a new and facile approach for synthesis, labeling, and characterizing amphiphilic nanoscale Janus particles. The aqueous dispersion of the Aerodisp W1226 fumed silica particles were embedded into polycarbonate (P.C.) microspheres surfaces via inverse solvent displacement method and further primary functionalization by an amine group. Subsequently, the polymer was dissolved, and a second modification was preferred to introduce a thiol group on the revealed embedded side of the particles, forming silica-based Janus/amphiphilic particles. We first characterized the Janus particles by laser scanning confocal microscopy and then with direct stochastic optical reconstruction microscopy (dSTORM) to detect the labeling distribution of the different functional groups. Super-resolution imaging results confirmed that the fabricated particles are Janus particles with different chemical properties on each hemisphere. The particles were also characterized by scanning and transmission electron microscopy for size and shape. The results showed aspherical particles with two hemispheres, confirming successful fabrication and chemical modification. Also, this work successfully demonstrated the synthesis, characterization and analysis of nanoscale Janus/amphiphilic particles nanoscale Janus particle.

我们开发了一种新的简便方法，用于合成、标记和表征两亲性纳米级 Janus 粒子。通过反溶剂置换法将 Aerodisp W1226 气相法二氧化硅颗粒的水分散液嵌入聚碳酸酯（P.C.）微球表面，并通过胺基团进一步初级官能化。随后，溶解聚合物，再进行第二次改性，在颗粒显露的嵌入侧引入硫醇基团，形成硅基 Janus/亲水颗粒。我们首先用激光扫描共聚焦显微镜对 Janus 粒子进行了表征，然后用直接随机光学重建显微镜（dSTORM）检测了不同官能团的标记分布。超分辨成像结果证实，制备的粒子是每个半球具有不同化学性质的 Janus 粒子。此外，还利用扫描和透射电子显微镜对颗粒的尺寸和形状进行了表征。结果显示，非球面颗粒有两个半球，证实了制备和化学修饰的成功。此外，这项工作还成功地展示了纳米级 Janus/亲水粒子纳米级 Janus 粒子的合成、表征和分析。

{"title":"Nanoscale Janus particle fabrication and direct observation by super-resolution microscopy","authors":"Noga Yaakov , Raz Cohen , Yogapriya Ravi , Karthik Ananth Mani , Idan Harush , Tali Dadosh , Olga Brontvein , Einat Zelinger , Guy Mechrez","doi":"10.1016/j.colsurfa.2024.135684","DOIUrl":"10.1016/j.colsurfa.2024.135684","url":null,"abstract":"<div><div>We have developed a new and facile approach for synthesis, labeling, and characterizing amphiphilic nanoscale Janus particles. The aqueous dispersion of the Aerodisp W1226 fumed silica particles were embedded into polycarbonate (P.C.) microspheres surfaces via inverse solvent displacement method and further primary functionalization by an amine group. Subsequently, the polymer was dissolved, and a second modification was preferred to introduce a thiol group on the revealed embedded side of the particles, forming silica-based Janus/amphiphilic particles. We first characterized the Janus particles by laser scanning confocal microscopy and then with direct stochastic optical reconstruction microscopy (dSTORM) to detect the labeling distribution of the different functional groups. Super-resolution imaging results confirmed that the fabricated particles are Janus particles with different chemical properties on each hemisphere. The particles were also characterized by scanning and transmission electron microscopy for size and shape. The results showed aspherical particles with two hemispheres, confirming successful fabrication and chemical modification. Also, this work successfully demonstrated the synthesis, characterization and analysis of nanoscale Janus/amphiphilic particles nanoscale Janus particle.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135684"},"PeriodicalIF":4.9,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improvement of electrochemical performance by surface modification of LiNi0.65Co0.15Mn0.2O2 cathode materials with SnO2 用二氧化锡对 LiNi0.65Co0.15Mn0.2O2 阴极材料进行表面改性以提高其电化学性能

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Pub Date : 2024-11-05 DOI: 10.1016/j.colsurfa.2024.135719

Fu Yang, Yan-Ming Jia, Zhi-Yan Bai, Li-Juan Sun, Yu-Long Xie

LiNi_0.65Co_0.15Mn_0.2O₂ batteries have attracted more and more attention due to their high energy density. However, LiNi_0.65Co_0.15Mn_0.2O₂ possesses adverse factors such as severe Li-Ni mixing and side reactions between active substance and electrolyte, which limits its electrochemical performance. Hence, we employed the SnO₂ surface coating method to enhance its performance. SnO₂ coating inhibits the direct contact between LiNi_0.65Co_0.15Mn_0.2O₂ and the electrolyte, which reduces the lithium-nickel mixing, enlarges the lithium layer spacing, and contributes to the improvement of the specific capacity of discharge and the cycling performance. The electrochemical results indicate the optimal SnO₂-coated LiNi_0.65Co_0.15Mn_0.2O₂ show excellent cycling performance (85.0 % capacity retention for 100 cycles at 0.1 C) and multiplicative performance (124.1 mA·h·g⁻¹ discharge specific capacity at 2 C). The paper highlights the SnO₂ cladding technology which provides an excellent research idea to improve lithium-ion batteries.

LiNi0.65Co0.15Mn0.2O2 电池因其能量密度高而受到越来越多的关注。然而，LiNi0.65Co0.15Mn0.2O2 存在严重的锂镍混合和活性物质与电解质之间的副反应等不利因素，限制了其电化学性能。因此，我们采用了二氧化锡表面镀膜的方法来提高其性能。SnO2 涂层抑制了 LiNi0.65Co0.15Mn0.2O2 与电解液的直接接触，减少了锂镍混合，扩大了锂层间距，有助于提高放电比容量和循环性能。电化学结果表明，最佳的 SnO2 涂层 LiNi0.65Co0.15Mn0.2O2 具有优异的循环性能（0.1 C 条件下 100 次循环容量保持率为 85.0%）和倍增性能（2 C 条件下放电比容量为 124.1 mA-h-g-1）。论文强调了二氧化锰包层技术，为改进锂离子电池提供了一个极好的研究思路。

{"title":"Improvement of electrochemical performance by surface modification of LiNi0.65Co0.15Mn0.2O2 cathode materials with SnO2","authors":"Fu Yang, Yan-Ming Jia, Zhi-Yan Bai, Li-Juan Sun, Yu-Long Xie","doi":"10.1016/j.colsurfa.2024.135719","DOIUrl":"10.1016/j.colsurfa.2024.135719","url":null,"abstract":"<div><div>LiNi<sub>0.65</sub>Co<sub>0.15</sub>Mn<sub>0.2</sub>O<sub>2</sub> batteries have attracted more and more attention due to their high energy density. However, LiNi<sub>0.65</sub>Co<sub>0.15</sub>Mn<sub>0.2</sub>O<sub>2</sub> possesses adverse factors such as severe Li-Ni mixing and side reactions between active substance and electrolyte, which limits its electrochemical performance. Hence, we employed the SnO<sub>2</sub> surface coating method to enhance its performance. SnO<sub>2</sub> coating inhibits the direct contact between LiNi<sub>0.65</sub>Co<sub>0.15</sub>Mn<sub>0.2</sub>O<sub>2</sub> and the electrolyte, which reduces the lithium-nickel mixing, enlarges the lithium layer spacing, and contributes to the improvement of the specific capacity of discharge and the cycling performance. The electrochemical results indicate the optimal SnO<sub>2</sub>-coated LiNi<sub>0.65</sub>Co<sub>0.15</sub>Mn<sub>0.2</sub>O<sub>2</sub> show excellent cycling performance (85.0 % capacity retention for 100 cycles at 0.1 C) and multiplicative performance (124.1 mA·h·g<sup>−1</sup> discharge specific capacity at 2 C). The paper highlights the SnO<sub>2</sub> cladding technology which provides an excellent research idea to improve lithium-ion batteries.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135719"},"PeriodicalIF":4.9,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development and performance evaluation of a mechanically triggered release microcapsule based on in-situ polymerization for lost circulation control 基于原位聚合的机械触发释放微胶囊的开发与性能评估，用于控制循环损失

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Pub Date : 2024-11-05 DOI: 10.1016/j.colsurfa.2024.135720

Xiaoyu Zang, Zhengsong Qiu, Pengfei Guo, Hanyi Zhong, Xin Zhao, Tingbo Mu

Lost circulation is a critical technical challenge in the drilling and production process of underground oil and gas energy. In this study, a mechanically triggered release microcapsule for lost circulation control was designed and prepared with an in-situ polymerization using melamine, urea, formaldehyde, and diglycidyl ether of bisphenol A (healing agent) as raw materials. The structure and properties of the microcapsule were characterized by different techniques. The results show that the healing agent was successfully encapsulated by the resin shell, the median particle size (D50) of the microcapsules is 120.3 μm, and the thermal stability is excellent. The compatibility experiments show that the surface wettability and shear stability of the microcapsules are good in water-based drilling fluid. The compressive strength test reveals that the healing agent in the microcapsule is released and filled in the gap of the plugging zone under the contact pressure. The concentration of microcapsules and the size distribution of rigid particles are critical for the in-situ reinforcement effect. In addition, the fracture plugging performance of the microcapsule was studied. The results show that the pressure-bearing capacity of the plugging zone increases as the irregularity of the fracture surface increases. These findings indicate the microencapsulated healing agent is an effective lost circulation material (LCM), and provide a new technical idea for lost circulation control.

失重循环是地下油气能源钻井和生产过程中的一项关键技术挑战。本研究以三聚氰胺、尿素、甲醛和双酚 A 二缩水甘油醚（愈合剂）为原料，设计并采用原位聚合法制备了一种用于控制失重循环的机械触发释放微胶囊。通过不同的技术对微胶囊的结构和性能进行了表征。结果表明，愈创剂被树脂外壳成功包裹，微胶囊的中值粒径（D50）为 120.3 μm，热稳定性优良。相容性实验表明，微胶囊在水基钻井液中的表面润湿性和剪切稳定性良好。抗压强度试验表明，在接触压力作用下，微胶囊中的愈合剂被释放并填充到堵塞区的空隙中。微胶囊的浓度和硬质颗粒的大小分布对原位加固效果至关重要。此外，还研究了微胶囊的断裂堵塞性能。结果表明，随着断裂面不规则程度的增加，堵塞区的承压能力也随之增加。这些研究结果表明，微胶囊愈合剂是一种有效的流失循环材料（LCM），为流失循环控制提供了一种新的技术思路。

{"title":"Development and performance evaluation of a mechanically triggered release microcapsule based on in-situ polymerization for lost circulation control","authors":"Xiaoyu Zang, Zhengsong Qiu, Pengfei Guo, Hanyi Zhong, Xin Zhao, Tingbo Mu","doi":"10.1016/j.colsurfa.2024.135720","DOIUrl":"10.1016/j.colsurfa.2024.135720","url":null,"abstract":"<div><div>Lost circulation is a critical technical challenge in the drilling and production process of underground oil and gas energy. In this study, a mechanically triggered release microcapsule for lost circulation control was designed and prepared with an in-situ polymerization using melamine, urea, formaldehyde, and diglycidyl ether of bisphenol A (healing agent) as raw materials. The structure and properties of the microcapsule were characterized by different techniques. The results show that the healing agent was successfully encapsulated by the resin shell, the median particle size (D50) of the microcapsules is 120.3 μm, and the thermal stability is excellent. The compatibility experiments show that the surface wettability and shear stability of the microcapsules are good in water-based drilling fluid. The compressive strength test reveals that the healing agent in the microcapsule is released and filled in the gap of the plugging zone under the contact pressure. The concentration of microcapsules and the size distribution of rigid particles are critical for the in-situ reinforcement effect. In addition, the fracture plugging performance of the microcapsule was studied. The results show that the pressure-bearing capacity of the plugging zone increases as the irregularity of the fracture surface increases. These findings indicate the microencapsulated healing agent is an effective lost circulation material (LCM), and provide a new technical idea for lost circulation control.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135720"},"PeriodicalIF":4.9,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Physical, optical properties and antibacterial activity of silver nanoparticles: Nanoclusters to nanoparticles formation on glass substrate by in-situ annealing 银纳米粒子的物理、光学特性和抗菌活性：通过原位退火在玻璃基底上形成纳米团簇到纳米颗粒

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Pub Date : 2024-11-05 DOI: 10.1016/j.colsurfa.2024.135722

Htet Htet Kyaw , Myo Tay Zar Myint , Salim Al-Harthi , Priyanka Sathe , Sergey Dobretsov , Mohammed Al-Abri

Silver nanoparticles (AgNPs) formed on in-situ annealed microscopic glass substrates from silver nanoclusters (AgNCs) generated by DC magnetron sputtering with inert gas condensation (IGC) technique. The substrate’s annealing temperature was below and above the glass transition temperature of 500 ºC and 600 ºC. The influence of annealing temperature on the surface morphology was studied using atomic force microscopy (AFM). X-ray photoelectron spectroscopy (XPS) and ultraviolet photoelectron spectroscopy (UPS) were employed to investigate the surface composition, chemical states, and electronic states of the AgNPs on the glass substrates. On the in-situ annealed glass substrate at 500 ºC, the produced AgNPs revealed accumulation and aggregation. For in-situ annealed at 600 ºC, a homogeneous distribution of AgNPs on the glass substrate was witnessed. The refractive index test revealed that AgNPs deposition at 600 ºC achieved higher sensitivity with 27 nm/RIU (Refractive index unit). The antibacterial activity of AgNPs was also investigated using Escherichia coli and Bacillus cereus. In contrast, better antibacterial activity was obtained with in-situ annealing at 500 ºC, where 4-fold reductions compared with the control sample. Pre-determined properties can be precisely executed to achieve the desired performance as the so-called application-oriented engineered surface in the UHV system is established. This research highlighted the differences between two different annealing temperatures' effect on the base substrate material, which subsequently impacts the structure of AgNPs and their applications. Furthermore, the outcome of this work could contribute to the multifunctional surface for detecting heavy metals, various organic pollutants, and disinfection of water and food-borne pathogenic diseases.

利用惰性气体冷凝（IGC）技术通过直流磁控溅射产生的银纳米团簇（AgNCs）在原位退火的微观玻璃基底上形成了银纳米粒子（AgNPs）。基底的退火温度分别低于和高于玻璃转化温度 500 ºC 和 600 ºC。使用原子力显微镜（AFM）研究了退火温度对表面形貌的影响。利用 X 射线光电子能谱 (XPS) 和紫外光电子能谱 (UPS) 研究了玻璃基底上 AgNPs 的表面成分、化学状态和电子状态。在 500 ºC 原位退火的玻璃基底上，生成的 AgNPs 出现了堆积和聚集。在 600 ºC 原位退火时，玻璃基板上的 AgNPs 呈均匀分布。折射率测试表明，在 600 ºC 下沉积的 AgNPs 灵敏度更高，达到 27 nm/RIU（折射率单位）。此外，还使用大肠杆菌和蜡样芽孢杆菌研究了 AgNPs 的抗菌活性。与对照样品相比，在 500 ºC 原位退火条件下获得的抗菌活性降低了 4 倍。由于在超高真空系统中建立了所谓的面向应用的工程表面，因此可以精确地执行预先确定的特性，以实现所需的性能。这项研究强调了两种不同退火温度对基底材料影响的差异，这种差异随后会影响到 AgNPs 的结构及其应用。此外，这项工作的成果还有助于开发用于检测重金属、各种有机污染物、水消毒和食源性致病菌的多功能表面。

{"title":"Physical, optical properties and antibacterial activity of silver nanoparticles: Nanoclusters to nanoparticles formation on glass substrate by in-situ annealing","authors":"Htet Htet Kyaw , Myo Tay Zar Myint , Salim Al-Harthi , Priyanka Sathe , Sergey Dobretsov , Mohammed Al-Abri","doi":"10.1016/j.colsurfa.2024.135722","DOIUrl":"10.1016/j.colsurfa.2024.135722","url":null,"abstract":"<div><div>Silver nanoparticles (AgNPs) formed on in-situ annealed microscopic glass substrates from silver nanoclusters (AgNCs) generated by DC magnetron sputtering with inert gas condensation (IGC) technique. The substrate’s annealing temperature was below and above the glass transition temperature of 500 ºC and 600 ºC. The influence of annealing temperature on the surface morphology was studied using atomic force microscopy (AFM). X-ray photoelectron spectroscopy (XPS) and ultraviolet photoelectron spectroscopy (UPS) were employed to investigate the surface composition, chemical states, and electronic states of the AgNPs on the glass substrates. On the in-situ annealed glass substrate at 500 ºC, the produced AgNPs revealed accumulation and aggregation. For in-situ annealed at 600 ºC, a homogeneous distribution of AgNPs on the glass substrate was witnessed. The refractive index test revealed that AgNPs deposition at 600 ºC achieved higher sensitivity with 27 nm/RIU (Refractive index unit). The antibacterial activity of AgNPs was also investigated using <em>Escherichia coli</em> and <em>Bacillus cereus</em>. In contrast, better antibacterial activity was obtained with in-situ annealing at 500 ºC, where 4-fold reductions compared with the control sample. Pre-determined properties can be precisely executed to achieve the desired performance as the so-called application-oriented engineered surface in the UHV system is established. This research highlighted the differences between two different annealing temperatures' effect on the base substrate material, which subsequently impacts the structure of AgNPs and their applications. Furthermore, the outcome of this work could contribute to the multifunctional surface for detecting heavy metals, various organic pollutants, and disinfection of water and food-borne pathogenic diseases.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135722"},"PeriodicalIF":4.9,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanisms of multiple functional groups in post-CMP cleaning solutions for Co interconnects 用于钴互连器件的后 CMP 清洁溶液中多种官能团的作用机理

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Pub Date : 2024-11-05 DOI: 10.1016/j.colsurfa.2024.135721

Lifei Zhang , Mei Yan , Xinchun Lu

Cobalt (Co) exhibits low resistivity, excellent adhesive properties, and the ability to fill gaps seamlessly, thus it is promising to change the landscape of integrated circuits in various fields, especially in the areas of interconnections and logic contacts. The cleaning of Co surfaces after chemical mechanical polishing (CMP) is an essential step due to the potential occurrence of numerous defects, such as silicon dioxide nanoparticles, organic residues, and severe corrosion. This research delves into the mechanisms of pivotal components in cleaning solutions, including complexing agents and corrosion inhibitors, and analyzes their impact on cleaning effectiveness. Based on Derjaguin-Landau-Verwey-Overbeek theory calculation and adhesion force measurements through the liquid mode of atomic force microscope, the interaction forces between silica (SiO₂) particles and Co substrate were calculated and verified. Additionally, various methods were employed to unravel the nature of the particles and the mechanism of different functional groups, encompassing electrochemical experiments, static etching tests, surface energy studies, zeta potential measurements, and X-ray photoelectron spectroscopy characterization. This comprehensive investigation offers a clear understanding of the roles played by different functional groups, establishes a functional group system for cleaning solutions tailored to Co interconnect wafers, and provides valuable guidance for the subsequent design and development of cleaning solutions.

钴（Co）具有低电阻率、出色的粘合性能和无缝填充间隙的能力，因此有望改变集成电路在各个领域的面貌，尤其是在互连和逻辑触点领域。化学机械抛光（CMP）后，由于可能出现许多缺陷，如纳米二氧化硅颗粒、有机残留物和严重腐蚀，因此钴表面的清洁是一个必不可少的步骤。本研究深入探讨了清洗液中关键成分（包括络合剂和腐蚀抑制剂）的作用机理，并分析了它们对清洗效果的影响。基于 Derjaguin-Landau-Verwey-Overbeek 理论计算和原子力显微镜液态模式下的附着力测量，计算并验证了二氧化硅（SiO2）颗粒与钴基底之间的相互作用力。此外，还采用了多种方法，包括电化学实验、静态蚀刻测试、表面能研究、zeta 电位测量和 X 射线光电子能谱表征，以揭示颗粒的性质和不同官能团的作用机理。这项全面的研究清楚地了解了不同官能团的作用，建立了针对钴互连晶片的清洗解决方案的官能团体系，并为后续清洗解决方案的设计和开发提供了宝贵的指导。

{"title":"Mechanisms of multiple functional groups in post-CMP cleaning solutions for Co interconnects","authors":"Lifei Zhang , Mei Yan , Xinchun Lu","doi":"10.1016/j.colsurfa.2024.135721","DOIUrl":"10.1016/j.colsurfa.2024.135721","url":null,"abstract":"<div><div>Cobalt (Co) exhibits low resistivity, excellent adhesive properties, and the ability to fill gaps seamlessly, thus it is promising to change the landscape of integrated circuits in various fields, especially in the areas of interconnections and logic contacts. The cleaning of Co surfaces after chemical mechanical polishing (CMP) is an essential step due to the potential occurrence of numerous defects, such as silicon dioxide nanoparticles, organic residues, and severe corrosion. This research delves into the mechanisms of pivotal components in cleaning solutions, including complexing agents and corrosion inhibitors, and analyzes their impact on cleaning effectiveness. Based on Derjaguin-Landau-Verwey-Overbeek theory calculation and adhesion force measurements through the liquid mode of atomic force microscope, the interaction forces between silica (SiO<sub>2</sub>) particles and Co substrate were calculated and verified. Additionally, various methods were employed to unravel the nature of the particles and the mechanism of different functional groups, encompassing electrochemical experiments, static etching tests, surface energy studies, zeta potential measurements, and X-ray photoelectron spectroscopy characterization. This comprehensive investigation offers a clear understanding of the roles played by different functional groups, establishes a functional group system for cleaning solutions tailored to Co interconnect wafers, and provides valuable guidance for the subsequent design and development of cleaning solutions.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135721"},"PeriodicalIF":4.9,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A passive, flexible dual-function sensor for simultaneous pressure and sliding direction detection 一种无源、灵活的双功能传感器，可同时检测压力和滑动方向

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Pub Date : 2024-11-05 DOI: 10.1016/j.colsurfa.2024.135704

Nan Lv , Cheng Liu , Jiyuan Feng , Zhiwei Lyu , Yuteng Zhang , Haifeng Zhang

Flexible pressure and omnidirectional slide sensors show significant potential in wearable devices and robotics. However, the integration of various sensor types to achieve multi-functionality introduces challenges. Complex structures and processing difficulties limit their miniaturization and flexibility, while dependence on external power sources further constrains their practical use. Here, we report a novel strategy that utilizes a piezoelectric-conductive nanoresistance network with edge electrodes to develop an advanced pressure sensor. This sensor is capable of simultaneously detecting pressure and sliding direction through multiple-channel pulses. We demonstrate its functionality using a polyacrylonitrile/polypyrrole nanofiber membrane (PAN/PPY NFM) configured with either two or three electrodes. By exploiting the signal transmission characteristics of the nanoresistance network, the sensor simultaneously responds to both force and sliding direction through amplitude-frequency analysis of the output signals from multiple channels. Additionally, the sensor operates without an external power supply. This streamlined approach simplifies sensor design and processing, providing a promising solution for advanced touch sensing applications.

柔性压力传感器和全向滑动传感器在可穿戴设备和机器人领域显示出巨大的潜力。然而，整合各种类型的传感器以实现多功能性带来了挑战。复杂的结构和加工困难限制了它们的微型化和灵活性，而对外部电源的依赖又进一步限制了它们的实际应用。在这里，我们报告了一种利用带有边缘电极的压电导电纳米电阻网络来开发先进压力传感器的新策略。这种传感器能够通过多通道脉冲同时检测压力和滑动方向。我们使用配置了两个或三个电极的聚丙烯腈/聚吡咯纳米纤维膜（PAN/PPY NFM）演示了它的功能。传感器利用纳米电阻网络的信号传输特性，通过对多通道输出信号的幅频分析，同时对力和滑动方向做出响应。此外，该传感器无需外部电源即可工作。这种精简的方法简化了传感器的设计和处理，为先进的触摸传感应用提供了前景广阔的解决方案。

{"title":"A passive, flexible dual-function sensor for simultaneous pressure and sliding direction detection","authors":"Nan Lv , Cheng Liu , Jiyuan Feng , Zhiwei Lyu , Yuteng Zhang , Haifeng Zhang","doi":"10.1016/j.colsurfa.2024.135704","DOIUrl":"10.1016/j.colsurfa.2024.135704","url":null,"abstract":"<div><div>Flexible pressure and omnidirectional slide sensors show significant potential in wearable devices and robotics. However, the integration of various sensor types to achieve multi-functionality introduces challenges. Complex structures and processing difficulties limit their miniaturization and flexibility, while dependence on external power sources further constrains their practical use. Here, we report a novel strategy that utilizes a piezoelectric-conductive nanoresistance network with edge electrodes to develop an advanced pressure sensor. This sensor is capable of simultaneously detecting pressure and sliding direction through multiple-channel pulses. We demonstrate its functionality using a polyacrylonitrile/polypyrrole nanofiber membrane (PAN/PPY NFM) configured with either two or three electrodes. By exploiting the signal transmission characteristics of the nanoresistance network, the sensor simultaneously responds to both force and sliding direction through amplitude-frequency analysis of the output signals from multiple channels. Additionally, the sensor operates without an external power supply. This streamlined approach simplifies sensor design and processing, providing a promising solution for advanced touch sensing applications.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135704"},"PeriodicalIF":4.9,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

SiC-doped thermochromic microcapsules with photothermal effect for thermal-regulating fabrics 用于热调节织物的具有光热效应的掺碳化硅热致变色微胶囊

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Pub Date : 2024-11-05 DOI: 10.1016/j.colsurfa.2024.135708

Dong Xue, Xiaoye Bi, Yunpeng Wang, Tianyang Li, Bingjie Zhang, Tao Zhao

Various thermal management materials designed for heating and cooling have been developed to achieve all-season thermal regulation. However, creating a thermal management system with zero energy consumption remains a challenge. This study presents novel thermal-regulating fabrics (TRFs) based on silicon carbide (SiC)-doped thermochromic microcapsules, which exhibit color change properties. The microcapsules, with a core-to-shell ratio of 2:1, demonstrate a high contrast in color change. The incorporation of SiC not only enhances thermal conductivity and photothermal properties but also mitigates the supercooling phenomena observed in microcapsules. The enthalpy of melting for the microcapsules containing 2 % SiC was measured at 104.5 J/g, indicating a significant thermal storage capacity. Polydimethylsiloxane (PDMS) containing 40 wt% microcapsules was screen-printed of onto the surface of cotton fabrics to create the TRFs, which can automatically switch between black and white as temperature changes, leading to notable alterations in optical properties. Specifically, the TRFs appear white with high reflectance at elevated temperatures, while they transition to black below 20 °C, activating a heating mode. The thermal-regulating fabrics, which allow for modifiable solar absorption, offer a novel approach to the development of intelligent thermal management materials, demonstrating significant potential for creating comfortable personal environments.

为了实现四季热调节，人们开发了各种用于加热和冷却的热管理材料。然而，创建零能耗的热管理系统仍然是一项挑战。本研究介绍了基于碳化硅（SiC）掺杂热致变色微胶囊的新型热调节织物（TRF），这种织物具有颜色变化特性。这种微胶囊的芯壳比为 2:1，在颜色变化方面具有很高的对比度。碳化硅的加入不仅增强了导热性和光热特性，还缓解了在微胶囊中观察到的过冷现象。据测量，含 2% 碳化硅的微胶囊的熔化焓为 104.5 焦耳/克，这表明微胶囊具有显著的蓄热能力。将含有 40% 微胶囊的聚二甲基硅氧烷（PDMS）丝网印刷到棉织物表面，制成了 TRFs，当温度发生变化时，TRFs 可以在黑色和白色之间自动切换，从而导致光学特性发生显著变化。具体来说，TRF 在温度升高时呈现白色，具有高反射率，而在低于 20 °C 时则转变为黑色，从而启动加热模式。这种热调节织物可以调节对太阳光的吸收，为智能热管理材料的开发提供了一种新方法，为创造舒适的个人环境展示了巨大的潜力。

{"title":"SiC-doped thermochromic microcapsules with photothermal effect for thermal-regulating fabrics","authors":"Dong Xue, Xiaoye Bi, Yunpeng Wang, Tianyang Li, Bingjie Zhang, Tao Zhao","doi":"10.1016/j.colsurfa.2024.135708","DOIUrl":"10.1016/j.colsurfa.2024.135708","url":null,"abstract":"<div><div>Various thermal management materials designed for heating and cooling have been developed to achieve all-season thermal regulation. However, creating a thermal management system with zero energy consumption remains a challenge. This study presents novel thermal-regulating fabrics (TRFs) based on silicon carbide (SiC)-doped thermochromic microcapsules, which exhibit color change properties. The microcapsules, with a core-to-shell ratio of 2:1, demonstrate a high contrast in color change. The incorporation of SiC not only enhances thermal conductivity and photothermal properties but also mitigates the supercooling phenomena observed in microcapsules. The enthalpy of melting for the microcapsules containing 2 % SiC was measured at 104.5 J/g, indicating a significant thermal storage capacity. Polydimethylsiloxane (PDMS) containing 40 wt% microcapsules was screen-printed of onto the surface of cotton fabrics to create the TRFs, which can automatically switch between black and white as temperature changes, leading to notable alterations in optical properties. Specifically, the TRFs appear white with high reflectance at elevated temperatures, while they transition to black below 20 °C, activating a heating mode. The thermal-regulating fabrics, which allow for modifiable solar absorption, offer a novel approach to the development of intelligent thermal management materials, demonstrating significant potential for creating comfortable personal environments.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135708"},"PeriodicalIF":4.9,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Layered double hydroxides-derived CoNi alloy nanoparticles encapsulated by porous N-doped carbon nanofibers as efficient methanol electrocatalysts for alkaline direct methanol fuel cells 多孔 N 掺杂碳纳米纤维包裹的层状双氢氧化物衍生 CoNi 合金纳米粒子作为碱性直接甲醇燃料电池的高效甲醇电催化剂

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Pub Date : 2024-11-05 DOI: 10.1016/j.colsurfa.2024.135703

Chong Zhang , Shuyan Yu , Fei Chen , Shiquan Guo , Man Guo , Le Wang , Congju Li

The exploration of inexpensive electrocatalysts possessing high activity and increased stability to replace precious metal catalysts in the methanol oxidation reaction (MOR) is highly desirable for alkaline direct methanol fuel cells (ADMFCs). This study presents a novel approach to synthesize layered double hydroxides (LDHs)-derived CoNi alloy nanoparticles confined within porous N-doped carbon nanofibers (CoNi@NCNFs) via facile electrospinning and pyrolysis for methanol electrooxidation. The one-dimensional N-doped carbon nanofibers could effectively prevent nanoparticle agglomeration during the pyrolysis of LDH precursors. The optimized CoNi@NCNF3–900 composite exhibits exceptional catalytic activity (80.3 mA cm⁻²) for MOR in alkaline solution, attributed to its hierarchical porous structure, high surface area, and abundant accessible active sites. Furthermore, the catalyst demonstrates competitive electrocatalytic stability, retaining over 90 % of its initial current density after 1000 consecutive cyclic voltammetry (CV) cycles. Notably, a single-cell ADMFC assembled with CoNi@NCNF3–900 as the anode catalyst achieves a promising maximum power density of 29.5 mW cm⁻², highlighting the potential of CoNi@NCNF3–900 for application in DMFC technology and clean energy sources.

在碱性直接甲醇燃料电池（ADMFC）中，探索具有高活性和更高稳定性的廉价电催化剂以取代甲醇氧化反应（MOR）中的贵金属催化剂是非常理想的。本研究提出了一种新方法，通过简便的电纺丝和热解工艺，在多孔掺杂 N 的纳米碳纤维（CoNi@NCNFs）中合成层状双氢氧化物（LDHs）衍生的 CoNi 合金纳米颗粒，用于甲醇电氧化反应。一维 N-掺杂碳纳米纤维可有效防止 LDH 前驱体热解过程中的纳米粒子团聚。优化后的 CoNi@NCNF3-900 复合材料对碱性溶液中的 MOR 具有优异的催化活性（80.3 mA cm-2），这归功于其分层多孔结构、高比表面积和丰富的可访问活性位点。此外，该催化剂还表现出极具竞争力的电催化稳定性，在连续 1000 个循环伏安法（CV）周期后，其初始电流密度仍保持在 90% 以上。值得注意的是，用 CoNi@NCNF3-900 作为阳极催化剂组装的单电池 ADMFC 达到了 29.5 mW cm-2 的最大功率密度，这凸显了 CoNi@NCNF3-900 在 DMFC 技术和清洁能源方面的应用潜力。

{"title":"Layered double hydroxides-derived CoNi alloy nanoparticles encapsulated by porous N-doped carbon nanofibers as efficient methanol electrocatalysts for alkaline direct methanol fuel cells","authors":"Chong Zhang , Shuyan Yu , Fei Chen , Shiquan Guo , Man Guo , Le Wang , Congju Li","doi":"10.1016/j.colsurfa.2024.135703","DOIUrl":"10.1016/j.colsurfa.2024.135703","url":null,"abstract":"<div><div>The exploration of inexpensive electrocatalysts possessing high activity and increased stability to replace precious metal catalysts in the methanol oxidation reaction (MOR) is highly desirable for alkaline direct methanol fuel cells (ADMFCs). This study presents a novel approach to synthesize layered double hydroxides (LDHs)-derived CoNi alloy nanoparticles confined within porous N-doped carbon nanofibers (CoNi@NCNFs) via facile electrospinning and pyrolysis for methanol electrooxidation. The one-dimensional N-doped carbon nanofibers could effectively prevent nanoparticle agglomeration during the pyrolysis of LDH precursors. The optimized CoNi@NCNF3–900 composite exhibits exceptional catalytic activity (80.3 mA cm<sup>−2</sup>) for MOR in alkaline solution, attributed to its hierarchical porous structure, high surface area, and abundant accessible active sites. Furthermore, the catalyst demonstrates competitive electrocatalytic stability, retaining over 90 % of its initial current density after 1000 consecutive cyclic voltammetry (CV) cycles. Notably, a single-cell ADMFC assembled with CoNi@NCNF3–900 as the anode catalyst achieves a promising maximum power density of 29.5 mW cm<sup>−2</sup>, highlighting the potential of CoNi@NCNF3–900 for application in DMFC technology and clean energy sources.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135703"},"PeriodicalIF":4.9,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142653463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel corrosion inhibitor for copper in sulfuric acid media: Complexation of iodide ions with Benincasa Hispida leaf extract 硫酸介质中铜的新型缓蚀剂：碘离子与贝南卡叶提取物的络合反应

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Pub Date : 2024-11-05 DOI: 10.1016/j.colsurfa.2024.135710

Bochuan Tan , Haiqin Ren , Ruilai Zhang , Rong Wang , Lingwei Ma , Xin Li , Wenpo Li , Lei Guo , Mohammad K. Al-Sadoon

In the context of green and low-carbon development, the rapid development of industry brings the problem of metal corrosion costs increase, metal corrosion protection methods are of great concern. Extracts from Benincasa hispida leaves (BHLE), which were obtained through pressurised liquid extraction, were employed as a inhibitor for copper corrosion in 0.5 M H₂SO₄. Their composition and anti-corrosion properties were subsequently analyzed and evaluated. The electrochemical analysis results indicated that BHLE functions as a cathodic-type corrosion inhibitor. The anti-corrosion performance intensifies with the increase in concentration but diminishes gradually as the temperature rises, when the concentration of BHLE is 400 mg/L, the corrosion inhibition efficiency can reach 91.82 %, when the concentration of added potassium iodide reaches 16 mg/L the slow-release efficiency of the compounded corrosion inhibitor reaches 96.92 %. The addition of I⁻ strengthens the inhibition efficiency through the adsorption form dominated by competitive adsorption. The adsorption of BHLE onto the surface of copper follows the Langmuir monolayer adsorption model.

在绿色低碳发展的背景下，工业的快速发展带来了金属腐蚀成本增加的问题，金属腐蚀防护方法备受关注。通过加压液体萃取法获得的贝南卡糙叶提取物（BHLE）被用作铜在 0.5 M H2SO4 中的缓蚀剂。随后对其成分和抗腐蚀性能进行了分析和评估。电化学分析结果表明，BHLE 是一种阴极型缓蚀剂。当 BHLE 的浓度为 400 mg/L 时，缓蚀效率可达 91.82%；当碘化钾的添加浓度达到 16 mg/L 时，复合缓蚀剂的缓释效率可达 96.92%。碘化钾的加入通过竞争吸附为主的吸附形式提高了缓释效率。BHLE 在铜表面的吸附遵循 Langmuir 单层吸附模型。

{"title":"A novel corrosion inhibitor for copper in sulfuric acid media: Complexation of iodide ions with Benincasa Hispida leaf extract","authors":"Bochuan Tan , Haiqin Ren , Ruilai Zhang , Rong Wang , Lingwei Ma , Xin Li , Wenpo Li , Lei Guo , Mohammad K. Al-Sadoon","doi":"10.1016/j.colsurfa.2024.135710","DOIUrl":"10.1016/j.colsurfa.2024.135710","url":null,"abstract":"<div><div>In the context of green and low-carbon development, the rapid development of industry brings the problem of metal corrosion costs increase, metal corrosion protection methods are of great concern. Extracts from Benincasa hispida leaves (BHLE), which were obtained through pressurised liquid extraction, were employed as a inhibitor for copper corrosion in 0.5 M H<sub>2</sub>SO<sub>4</sub>. Their composition and anti-corrosion properties were subsequently analyzed and evaluated. The electrochemical analysis results indicated that BHLE functions as a cathodic-type corrosion inhibitor. The anti-corrosion performance intensifies with the increase in concentration but diminishes gradually as the temperature rises, when the concentration of BHLE is 400 mg/L, the corrosion inhibition efficiency can reach 91.82 %, when the concentration of added potassium iodide reaches 16 mg/L the slow-release efficiency of the compounded corrosion inhibitor reaches 96.92 %. The addition of I<sup>−</sup> strengthens the inhibition efficiency through the adsorption form dominated by competitive adsorption. The adsorption of BHLE onto the surface of copper follows the Langmuir monolayer adsorption model.</div></div>","PeriodicalId":278,"journal":{"name":"Colloids and Surfaces A: Physicochemical and Engineering Aspects","volume":"705 ","pages":"Article 135710"},"PeriodicalIF":4.9,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0