Journal of Industrial and Engineering Chemistry最新文献_第7页

Sustainable synthesis of nano-crystalline α-alumina from waste food packaging for efficient azithromycin removal 利用废弃食品包装可持续合成纳米晶α-氧化铝以高效去除阿奇霉素

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-11 DOI: 10.1016/j.jiec.2025.07.027

Raton Kumar Bishwas, Md. Ashraful Alam, Shirin Akter Jahan

Nanocrystalline α-alumina was successfully synthesized from waste aluminum food packaging (AFP) using a simple and novel method. This material was employed for the efficient removal of azithromycin (AZM) from aqueous systems. X-ray diffraction (XRD) analysis revealed a 99.93 % α-alumina phase with a hexagonal lattice structure. FTIR analysis showed the presence of –OH groups in diaspore but their absence in α-alumina. The zero-point charge (pHzpc) of α-alumina was 6.84, indicating its surface charge behavior. The synthesized α-alumina demonstrated high purity (99.93 %) and promising adsorption properties, with a moderate band gap of 5.07 eV and nanoscale absorbance characteristics. The hydrodynamic diameters of diaspore and α-alumina were 310.7 nm and 267.2 nm, respectively. The Transmission Electron Microscopy (TEM) reveals the irregular spherical shape of the particle with an average particle size of 60.53 nm. Adsorption studies demonstrated that AZM removal increased with contact time and adsorbent dosage but decreased with higher initial AZM concentration. The maximum adsorption capacity was 16.0691 mg/g at 25 °C and pH 10.0. Adsorption followed the Langmuir model, indicating monolayer coverage, while the pseudo-second-order kinetics suggest the rate depends on both the adsorbent and adsorbate. These results confirm that α-alumina synthesized from AFP is an effective adsorbent for AZM removal.

以废铝食品包装为原料，采用一种简单、新颖的方法成功合成了纳米晶α-氧化铝。该材料用于水溶液中阿奇霉素（AZM）的高效去除。x射线衍射（XRD）分析表明，其α-氧化铝相含量为99.93%，呈六边形晶格结构。FTIR分析表明-OH基团在一水硬石中存在，而在α-氧化铝中不存在。α-氧化铝的零点电荷（pHzpc）为6.84，表明其具有表面电荷行为。合成的α-氧化铝纯度高（99.93%），具有中等带隙（5.07 eV）和纳米级吸光度，具有良好的吸附性能。一水硬铝石和α-氧化铝的水动力直径分别为310.7 nm和267.2 nm。透射电子显微镜（TEM）观察到该颗粒呈不规则球形，平均粒径为60.53 nm。吸附研究表明，AZM去除率随接触时间和吸附剂用量的增加而增加，但随着初始AZM浓度的增加而降低。在25℃、pH 10.0条件下，最大吸附量为16.0691 mg/g。吸附遵循Langmuir模型，表明单层覆盖，而伪二级动力学表明吸附速率取决于吸附剂和吸附物。这些结果证实了AFP合成的α-氧化铝是一种去除AZM的有效吸附剂。

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引用次数: 0

Silver nanoparticles integrated SnO2/g-C3N4 nanocomposite as highly sensitive electrochemical sensor for ascorbic acid 银纳米粒子集成SnO2/g-C3N4纳米复合材料作为抗坏血酸的高灵敏度电化学传感器

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-11 DOI: 10.1016/j.jiec.2025.07.029

Kanagaraj Narayanan , Krishnan Senthil Murugan , Thillai Sivakumar Natarajan

A highly sensitive and selective electrochemical sensor, Ag NPs-SnO₂/g-C₃N₄ nanocomposite material was developed using a facile sol–gel ultrasonic hybrid technique, for ascorbic acid (AA) sensing. The electrocatalytic activity of Ag NPs-SnO₂/g-C₃N₄/GCE towards AA sensing was evaluated using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) analysis in 0.1 M phosphate buffer saline (PBS) at neutral pH. The Ag NPs-SnO₂/g-C₃N₄/GCE showed strong CV response towards AA with the lower potential of +0.32 V, which may be ascribed to irreversible oxidation of AA. The anodic current responses are directly related to increase in the AA concentration and scan rate. Furthermore, the Ag NPs-SnO₂/g-C₃N₄/GCE exhibited exceptional sensitivity, selectivity, repeatability, reproducibility, and stability for AA sensing in the existence of undeserved compounds. The DPV results demonstrated the excellent sensing performance resulting in high sensitivity of 39.65 μA μM⁻¹ cm⁻², the responses of current rises steadily with increasing AA concentration from 8 μM to 5.0 mM with correlation coefficient (R² = 0.99), the LOD (S/N = 3) and LOQ is found to be 0.47 ± 1.18 μM and 1.45 ± 3.60 μM at 95 % confidence interval (n = 3). Hence, the result conclude that nanocomposites are potential sensor system for AA under present experimental condition.

采用溶胶-凝胶超声杂交技术，研制了一种高灵敏度、高选择性的抗坏血酸传感器——Ag - NPs-SnO2/g-C3N4纳米复合材料。采用循环伏安法（CV）和差分脉冲伏安法（DPV）分析了Ag NPs-SnO2/g-C3N4/GCE在中性ph 0.1 M磷酸缓冲液（PBS）中对AA感应的电催化活性。Ag NPs-SnO2/g-C3N4/GCE对AA表现出强烈的CV响应，电位较低，为+0.32 V，这可能是由于AA的不可逆氧化引起的。阳极电流响应与AA浓度和扫描速率的增加直接相关。此外，Ag NPs-SnO2/g-C3N4/GCE对存在不存在的化合物的AA传感表现出优异的灵敏度、选择性、可重复性、再现性和稳定性。结果表明，DPV具有良好的传感性能，灵敏度高达39.65 μA μM−1 cm−2，电流响应随AA浓度的增加而稳步上升，相关系数为0.99 (R2 = 0.99), LOD （S/N = 3）和LOQ在95%置信区间（N = 3）分别为0.47±1.18 μM和1.45±3.60 μM。因此，在目前的实验条件下，纳米复合材料是一种有潜力的AA传感器系统。

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引用次数: 0

Influence of zeolite acidity on CO2 hydrogenation over iron-based ZSM-5 zeolite 沸石酸度对铁基ZSM-5沸石CO2加氢的影响

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-11 DOI: 10.1016/j.jiec.2025.07.028

Mohammed A. Sanhoob , Hwei Voon Lee , Joon Ching Juan , M Nasiruzzaman Shaikh , Mohammad M Hossain

Converting CO₂ into value-added chemicals is crucial for combating rising CO₂ levels and environmental impacts. Iron-based catalysts convert CO₂ to chemicals, but optimizing their fabrication strategy remains underexplored. Fe-impregnated nanosized ZSM-5 zeolite formulations with different preparation conditions (uncalcined UnC-, calcined C-, protonated CPC-series) and calcination temperatures (400, 600, and 800 °C) were prepared. Catalysts were characterized using XRD, FESEM, XRF, XPS, TPR, and TPD. Analysis showed Fe10%-ZSM-5 had higher XRD crystallinity for protonated sample compared to uncalcined and unprotonated zeolite, with sequential changes in chemical states and H₂ consumption as temperature rose to 900 °C·NH₃-TPD showed protonated zeolite enhanced overall acidity, generating major weak and strong acid sites. XRD and XPS revealed Fe mixed phases (Hematite/Maghemite) at low calcination temperature (<600 °C). This mixture creates synergistic effects enhancing thermal stability and reducibility for CO₂ hydrogenation. The 10 %-Fe-ZSM-5 (C-series) calcined at 600 °C achieved 19 % CO₂ conversion with 93 % CO selectivity and 6 % hydrocarbons, indicating Fe impregnation without zeolitic strong acidity favors CO generation. Protonation enhanced selectivity toward hydrocarbons, reaching 51 % using protonated zeolite (CPC-series) at 400 °C. The catalyst maintained activity and selectivity for 12 h in hydrogenation conditions.

将二氧化碳转化为增值化学品对于应对不断上升的二氧化碳水平和环境影响至关重要。铁基催化剂将二氧化碳转化为化学物质，但优化其制造策略仍有待探索。制备了不同制备条件（未煅烧UnC-、煅烧C-、质子化cpc -系列）和煅烧温度（400℃、600℃和800℃）的fe -浸渍纳米ZSM-5分子筛配方。采用XRD、FESEM、XRF、XPS、TPR和TPD对催化剂进行了表征。分析表明，与未煅烧和未煅烧的沸石相比，质子化样品的Fe10%-ZSM-5具有更高的XRD结晶度，随着温度升高至900℃，化学状态和H2消耗发生了顺序变化。NH3-TPD表明，质子化沸石的整体酸度增强，产生了主要的弱酸和强酸位点。在较低的煅烧温度（<600℃）下，XRD和XPS显示铁混合相（赤铁矿/磁赤铁矿）。这种混合物产生协同效应，增强了CO2加氢的热稳定性和还原性。在600℃下煅烧的10% -Fe-ZSM-5 （C系列）的CO2转化率为19%，CO选择性为93%，碳氢化合物含量为6%，说明没有沸石强酸性的Fe浸染有利于CO的生成。质子化提高了对碳氢化合物的选择性，使用质子化沸石（cpc系列）在400°C时达到51%。催化剂在加氢条件下保持12 h的活性和选择性。

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引用次数: 0

A high-performance fluorescent deferasirox-functionalized metal-organic framework sensor with spherical morphology and controlled porosity derived from recycled PET for aqueous cadmium sensing 一种高性能荧光去铁氧化铁功能化金属有机框架传感器，具有球形形态和可控孔隙率，源自回收PET，用于水镉传感

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-10 DOI: 10.1016/j.jiec.2025.07.023

Fatemeh Mehdipour , Mostafa Khajeh , Ali Reza Oveisi , Saba Daliran

This work presents the development of a novel fluorescent deferasirox-functionalized metal–organic framework (F-MOF) with spherical morphology and controlled porosity, synthesized through an environmentally conscious approach using polyethylene terephthalate (PET) waste as a precursor. The MOF was functionalized in situ with deferasirox to create a highly sensitive and selective sensor for cadmium detection in aqueous environments. Comprehensive characterization confirmed preserved crystallinity through PXRD analysis, with optimal performance achieved at 0.2 equivalents of drug loading (among tested loadings of 0.2, 0.5, and 1.0 eq). SEM imaging revealed uniform spherical morphology with particle diameters ranging from 50 to 250 nm, while EDS analysis confirmed the expected elemental composition of 56.73 atomic percent carbon and 2.44 atomic percent zirconium. The material showed controlled porosity reduction in BET measurements, with surface area decreasing systematically from 400 to 60 m²/g as drug loading increased. Furthermore, the TGA analysis demonstrated excellent thermal stability with framework integrity maintained up to 360 °C. The material showed notable adsorption capacity (476.2 mg/g) and retained structural stability under environmental conditions. The MOF has a high quantum yield (35.2 %). The sensor revealed excellent selectivity in the presence of competing ions and presented effective performance in real water samples. This effort presents a practical approach to environmental sensing while addressing the critical need for sensitive heavy metal detection in water systems.

这项工作提出了一种新的荧光去铁氧化酶功能化金属有机框架（F-MOF）的发展，具有球形形态和可控孔隙率，通过一种环保的方法合成，利用聚对苯二甲酸乙二醇酯（PET）废物作为前体。用去铁氧化铁原位功能化MOF，创建了一个高灵敏度和选择性的水环境中镉检测传感器。综合表征通过PXRD分析证实了保留的结晶度，在0.2当量载药量（在测试的0.2、0.5和1.0当量载药量中）下达到最佳性能。扫描电镜（SEM）成像结果显示其颗粒直径在50 ~ 250 nm之间，呈均匀的球形，能谱分析证实其元素组成为56.73%的碳和2.44%的锆。在BET测量中，该材料显示出可控的孔隙率降低，随着药物负荷的增加，其表面积从400 m2/g系统地减少到60 m2/g。此外，TGA分析显示了优异的热稳定性，框架完整性保持到360°C。该材料具有显著的吸附能力（476.2 mg/g），并在环境条件下保持了结构稳定性。MOF具有较高的量子产率（35.2%）。该传感器在竞争离子存在下表现出优异的选择性，在实际水样中表现出有效的性能。这项工作提出了一种实用的方法来环境传感，同时解决了水系统中敏感重金属检测的关键需求。

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引用次数: 0

Exploring cost-effective porous organic polymers for carbon capture and utilization 探索具有成本效益的多孔有机聚合物用于碳捕获和利用

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-10 DOI: 10.1016/j.jiec.2025.07.026

Hyunwoo Byun , Nazrul Hsan , Keechul Youm , Yonggyun Cho , Yijin Choi , Ingi Hong , Santosh Kumar , Md Morshedur Rahman , Joonseok Koh

Global warming, primarily driven by carbon dioxide (CO₂) emissions, necessitates the development of efficient CO₂ capture and utilization technologies. Porous organic polymers (POPs) have attracted significant attention due to their high surface areas, superior CO₂ adsorption capacities, and catalytic conversion properties. Nevertheless, the high cost of many POPs limits their industrial scalability. In this study, we report the successful synthesis of three cost-effective POPs—CBPOP, CNPOP, and CAPOP—using cyanuric chloride as the linker and three distinct aromatic cores (benzene, naphthalene, and anthracene, respectively). The resulting POPs exhibit robust aromatic character, high basicity, and well-developed network structures with significant porosity, which together confer excellent thermal stability, high CO₂ adsorption capacities, and outstanding CO₂/N₂ selectivity. Notably, CBPOP demonstrates the highest CO₂ uptake and selectivity, with adsorption behavior that is well described by the Single-Site Langmuir Model. Selectivity tests at 298 K and 323 K further confirm a strong preference for CO₂ over N₂—an essential feature for practical post-combustion carbon capture applications. In addition, all POPs effectively catalyze the cycloaddition of CO₂ with epoxides, yielding the corresponding cyclic carbonates with high efficiency. These results highlight the promise of CBPOP, CNPOP, and CAPOP as cost-effective POPs for selective and efficient CO₂ capture and conversion.

全球变暖主要是由二氧化碳（CO2）排放驱动的，因此需要开发有效的二氧化碳捕获和利用技术。多孔有机聚合物（POPs）因其高表面积、优异的CO2吸附能力和催化转化性能而备受关注。然而，许多持久性有机污染物的高成本限制了它们的工业可扩展性。在这项研究中，我们成功地合成了三种具有成本效益的pop - cbpop， CNPOP和capop，使用三聚氰胺作为连接剂和三种不同的芳香族核心（分别是苯，萘和蒽）。得到的持久性有机污染物具有强大的芳香特性、高碱度、发达的网络结构和显著的孔隙度，这些共同赋予了优异的热稳定性、高CO2吸附能力和出色的CO2/N2选择性。值得注意的是，CBPOP表现出最高的CO2吸收率和选择性，其吸附行为被单位点Langmuir模型很好地描述。在298 K和323 K下的选择性测试进一步证实了对CO2的强烈偏好，而不是n2 -这是实际燃烧后碳捕获应用的基本特征。此外，所有持久性有机污染物都能有效催化CO2与环氧化物的环加成反应，生成相应的环碳酸盐，效率高。这些结果突出了CBPOP、CNPOP和CAPOP作为具有成本效益的持久性有机污染物的前景，可以选择性和高效地捕获和转化二氧化碳。

{"title":"Exploring cost-effective porous organic polymers for carbon capture and utilization","authors":"Hyunwoo Byun , Nazrul Hsan , Keechul Youm , Yonggyun Cho , Yijin Choi , Ingi Hong , Santosh Kumar , Md Morshedur Rahman , Joonseok Koh","doi":"10.1016/j.jiec.2025.07.026","DOIUrl":"10.1016/j.jiec.2025.07.026","url":null,"abstract":"<div><div><span><span>Global warming, primarily driven by </span>carbon dioxide (CO</span><sub>2</sub>) emissions, necessitates the development of efficient CO<sub>2</sub><span> capture and utilization technologies. Porous organic polymers<span> (POPs) have attracted significant attention due to their high surface areas, superior CO</span></span><sub>2</sub><span><span><span> adsorption capacities, and catalytic conversion properties. Nevertheless, the high cost of many POPs limits their industrial scalability. In this study, we report the successful synthesis of three cost-effective POPs—CBPOP, CNPOP, and CAPOP—using cyanuric chloride as the linker and three distinct aromatic cores (benzene, </span>naphthalene<span>, and anthracene, respectively). The resulting POPs exhibit robust aromatic character, high </span></span>basicity, and well-developed network structures with significant porosity, which together confer excellent thermal stability, high CO</span><sub>2</sub> adsorption capacities, and outstanding CO<sub>2</sub>/N<sub>2</sub><span> selectivity. Notably, CBPOP demonstrates the highest CO</span><sub>2</sub><span> uptake and selectivity, with adsorption behavior that is well described by the Single-Site Langmuir Model. Selectivity tests at 298 K and 323 K further confirm a strong preference for CO</span><sub>2</sub> over N<sub>2</sub><span>—an essential feature for practical post-combustion carbon capture applications. In addition, all POPs effectively catalyze the cycloaddition of CO</span><sub>2</sub><span> with epoxides, yielding the corresponding cyclic carbonates with high efficiency. These results highlight the promise of CBPOP, CNPOP, and CAPOP as cost-effective POPs for selective and efficient CO</span><sub>2</sub> capture and conversion.</div></div>","PeriodicalId":363,"journal":{"name":"Journal of Industrial and Engineering Chemistry","volume":"154 ","pages":"Pages 597-611"},"PeriodicalIF":5.9,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145924061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Designing efficient methane dry reforming catalysts: insights into the influence of calcium, iron, and manganese on cobalt-based systems 设计高效的甲烷干重整催化剂：洞察钙、铁和锰对钴基体系的影响

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-09 DOI: 10.1016/j.jiec.2025.07.025

Dang Le Tri Nguyen , Duy Ha Le Phuong , Thuy-Phuong T. Pham , Anh Ngoc T. Cao , Tung M. Nguyen

Methane dry reforming (MDR) offers an eco-friendly method for syngas production by utilizing methane and carbon dioxide—two major greenhouse gases. A key challenge to its practical application is catalyst deactivation due to carbon deposition. In this study, cobalt-based catalysts doped with calcium, iron, and manganese were synthesized via incipient wetness impregnation and characterized by BET, XRD, H₂-TPR, CO₂-TPD, SEM, and TEM. Catalytic performance was tested at 700 °C and atmospheric pressure. Promoter addition enhanced cobalt dispersion, reducibility, and surface basicity, thereby boosting methane and CO₂ conversion rates. Among the catalysts, 0.3Ca-8Co@Al₂O₃ showed the best performance, achieving CH₄ and CO₂ conversions of 83% and 97%, respectively, with negligible coke formation. Post-reaction analysis confirmed the absence of filamentous carbon in the Ca-promoted catalyst, preventing cobalt encapsulation and ensuring sustained activity. These results underscore the importance of surface basicity in suppressing carbon buildup and suggest calcium as a highly effective promoter for enhancing the stability and performance of cobalt-based MDR catalysts.

甲烷干重整（MDR）利用甲烷和二氧化碳这两种主要的温室气体，为合成气生产提供了一种环保的方法。其实际应用的一个关键挑战是催化剂因碳沉积而失活。本研究采用初湿浸渍法制备了掺杂钙、铁、锰的钴基催化剂，并用BET、XRD、H2-TPR、CO2-TPD、SEM和TEM对催化剂进行了表征。在700℃和常压下测试了催化性能。促进剂的加入增强了钴的分散性、还原性和表面碱度，从而提高了甲烷和二氧化碳的转化率。其中，0.3Ca-8Co@Al2O3表现最好，CH4和CO2的转化率分别达到83%和97%，焦炭的形成可以忽略不计。反应后分析证实，ca促进的催化剂中没有丝状碳，防止了钴包封并确保了持续的活性。这些结果强调了表面碱度在抑制碳积累方面的重要性，并表明钙是一种非常有效的促进剂，可以提高钴基MDR催化剂的稳定性和性能。

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引用次数: 0

Comparative study on simultaneous adsorption of oxytetracycline and copper (II) by TiO2 nanoparticles and graphene oxide: Implications for environmental behavior 二氧化钛纳米粒子和氧化石墨烯同时吸附土霉素和铜（II）的比较研究：对环境行为的影响

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-09 DOI: 10.1016/j.jiec.2025.07.014

Leming Zhen , Qiyuan Qin , Zhaofu Meng , Na Sun , Ze Liu , Ruohan Cheng , Can Xu , Wenhui Liu , Jingbing Xue

With the development of the nanotechnology industry, the possible coexistence of engineering nanoparticles with organic and heavy metal pollutants in aquatic systems has become a hot issue. However, how different nanoparticles affect the environmental behavior of oxytetracycline (OTC) − copper (Cu²⁺) complex pollution remains unclear. In this study, we investigated the complex adsorption behavior of nano-TiO₂ and graphene oxide (GO) to OTC and Cu²⁺ in water, and the differences of adsorption mechanism are discussed with characteristics analyses. When OTC and Cu²⁺ coexist, Cu²⁺ formed complexes with OTC, consuming oxygen-containing functional groups of OTC and reducing its adsorption on both nanoparticles. OTC does not affect Cu²⁺ adsorption on nano-TiO₂, but promotes Cu²⁺ adsorption on GO. The OTC adsorption on nano-TiO₂ was primarily driven by hydrogen bonding and electrostatic attraction, leaving it with potential mobility. In contrast, the adsorption of OTC on GO was mainly through electrostatic attraction, π-π complexation and hydrogen bonding, and OTC reduced GO to rGO. These strong interactions stabilized OTC on GO surface, reducing its environmental mobility. The results of the research are of great environmental significance for exploring the impact of engineered nanoparticles discharged from industrial production in water on the combined pollution of OTC and Cu²⁺.

随着纳米技术产业的发展，工程纳米颗粒与有机、重金属污染物在水体中共存的可能性已成为一个热点问题。然而，不同的纳米颗粒如何影响土霉素(OTC) -铜（Cu2+）复合物污染的环境行为尚不清楚。在本研究中，我们研究了纳米tio2和氧化石墨烯（GO）对水中OTC和Cu2+的复合吸附行为，讨论了吸附机理的差异并进行了特征分析。当OTC和Cu2+共存时，Cu2+与OTC形成配合物，消耗OTC的含氧官能团，减少OTC在两种纳米颗粒上的吸附。OTC不影响Cu2+在纳米tio2上的吸附，但促进了GO对Cu2+的吸附。OTC在纳米tio2上的吸附主要由氢键和静电吸引驱动，使其具有潜在的迁移率。相比之下，OTC在GO上的吸附主要是通过静电吸引、π-π络合和氢键，OTC将GO还原为rGO。这些强相互作用稳定了氧化石墨烯表面的OTC，降低了其环境流动性。研究结果对于探索工业生产中排放的工程纳米颗粒对水中OTC和Cu2+复合污染的影响具有重要的环境意义。

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引用次数: 0

Pluronic P123 modified MXene as an efficient adsorbent for aqueous dye Removal: Optimization using CCD-RSM Pluronic P123改性MXene作为水中染料去除的高效吸附剂：CCD-RSM优化

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-09 DOI: 10.1016/j.jiec.2025.07.022

Nabilla Damayanti , Didik Prasetyoko , Suprapto Suprapto , Rustam Tamim , Riki Subagyo , Lia Kusnawati , Nurul Asikin-Mijan , Rahimi Yusop , Holilah Holilah , Aishah Abdul Jalil

MXene, a novel 2D nanomaterial, exhibits hydrophilicity, conductivity, and electrochemical performance. However, spontaneous self-assembly and restacking of MXene nanosheets, driven by hydrogen bonding and van der Waals forces, can hinder their functional potential. To address this, MXene was processed with Pluronic P123 using a templating method to enhance its structure and methylene blue (MB) adsorption capacity. Structural characterization revealed significant changes in the modified Mxene. XRD analysis showed a shift in the (002) peak, suggesting increased interlayer spacing. TGA showed the decomposition of P123 above 240 °C. FESEM indicated a 2D thin-layered and compressed structure resembles a lamella. The modified Mxene demonstrated strong affinity for MB, with adsorption behavior accurately described by the Freundlich isotherm and pseudo-second-order kinetic model. A comprehensive investigation was conducted to evaluate the effects of various parameters, such as contact time, initial MB concentration, pH, and adsorbent dosage, on adsorption efficiency. Response Surface Methodology (RSM) combined with Central Composite Design (CCD) optimization exposed that maximum MB removal of 99.8 % was achieved at pH 11, with an initial MB concentration of 10 mg/L, an adsorbent dosage of 15 mg, and a contact time of 36 min.

MXene是一种新型的二维纳米材料，具有亲水性、导电性和电化学性能。然而，在氢键和范德华力的驱动下，MXene纳米片的自发自组装和重新堆叠会阻碍其功能潜力。为了解决这一问题，采用Pluronic P123模板法处理MXene，以增强其结构和亚甲基蓝（MB）的吸附能力。结构表征显示修饰后的Mxene发生了显著变化。XRD分析表明（002）峰发生位移，表明层间间距增大。热重分析显示P123在240℃以上分解。FESEM显示二维薄层压缩结构类似于片层。改性后的Mxene对MB具有较强的亲和力，其吸附行为被Freundlich等温线和拟二级动力学模型准确描述。考察了接触时间、MB初始浓度、pH、吸附剂用量等参数对吸附效率的影响。响应面法（RSM）结合中心复合设计（CCD）优化结果表明，在pH为11、初始吸附浓度为10 mg/L、吸附剂用量为15 mg、接触时间为36 min的条件下，MB的去除率最高可达99.8%。

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引用次数: 0

Iron-rich sludge-enhanced Chinese medicine residue biochar as cost-effective heterogeneous Fenton catalyst for removal of tetracycline 富铁污泥强化中药材渣生物炭作为经济高效的多相Fenton催化剂脱除四环素

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-09 DOI: 10.1016/j.jiec.2025.07.017

Yanyan Dou , Yanqiang Du , Yukun Li , Yixuan Chang , Yufeng Xu , Yilong Fan , Xishu Liang , Xuejun Duan , Shuying Dong

To rationally utilize Chinese medicine residue (CMR), biochar was produced through a novel one-step pyrolysis method by CMR doped with iron-rich sludge (IRS) and employed for the removal of tetracycline (TC) in Fenton-like process. The co-pyrolysis biochar (BMS-2) with the weight ratio of IRS to CMR (2:1) achieved the maximum removal efficiency of TC (85.73 %) under the optimum conditions (30 mg/L TC, 10 mM H₂O₂, pH 7.0, and 0.5 g/L BMS-2), which was 2.22 times higher than that of CMR biochar. It’s probably because that the addition of IRS enhanced the iron content, surface functional groups (C=O), and graphite structures augmented the active sites of BMS-2. Significantly, the catalytic system maintained effective performance across a widened pH range of 3–9. Furthermore, the identification of reactive oxygen species and electron paramagnetic resonance analysis demonstrated that singlet oxygen (¹O₂) played a predominant role in TC degradation, whereas hydroxyl radicals (·OH) and superoxide radicals (O₂^–·) had a secondary impact. This work advanced dual waste valorization by transforming industrial and medical waste into functional catalysts, established pH-neutral Fenton-like systems overcoming acidic limitations, and elucidated ¹O₂-mediated mechanisms for the removal of antibiotic wastewater.

为合理利用中药渣（CMR），采用一种新型的一步热解方法，将CMR掺杂富铁污泥（IRS）制备生物炭，并将其用于fenton法脱除四环素（TC）。在最佳条件（30 mg/L TC、10 mM H2O2、pH 7.0、0.5 g/L BMS-2）下，IRS与CMR质量比为2:1的共热解生物炭（BMS-2）对TC的去除率最高，达到85.73%，是CMR生物炭的2.22倍。这可能是因为IRS的加入提高了BMS-2的铁含量，表面官能团（C=O）和石墨结构增加了BMS-2的活性位点。值得注意的是，催化系统在3-9的宽pH范围内保持有效的性能。此外，活性氧鉴定和电子顺磁共振分析表明，单线态氧（1O2）在TC降解中起主导作用，羟基自由基（·OH）和超氧自由基（O2 -·）起次要作用。本研究通过将工业和医疗废物转化为功能催化剂，推进了废物的双重增值，建立了ph中性的fenton样体系，克服了酸性限制，并阐明了o2介导的抗生素废水去除机制。

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引用次数: 0

Development of high-performance activated carbons from algerian Luffa cylindrica for efficient phenol removal: A comprehensive structural, surface, and thermal characterization 阿尔及利亚丝瓜高效除酚活性炭的研制：综合结构、表面和热表征

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-07-09 DOI: 10.1016/j.jiec.2025.07.016

Bouthaina Belaid , Razika Khalladi , Hakima Cherifi , Radhia Yous , Abdelhak Khachay

The performance of new activated carbons, LAC1 and LAC2, synthesized from Luffa cylindrica (LC) fibers pretreated with NaOH and sodium hypochlorite, and activated using H₃PO₄/ZnCl₂ and HNO₃, respectively, were evaluated for phenol removal from water. The impact of this new treatment on the structure of LC was comprehensively analyzed using pH_PZC, SEM/EDX, FTIR, XRD, TGA, DSC, and BET analyses. FTIR analysis confirmed the grafting of phosphorus groups onto LAC1 structure and the formation of crosslinked cellulose-phosphoric acid networks. The surface area of LAC1 (618.09 m²/g) was enhanced by 222-fold. The adsorption on LAC1 is spontaneous, exothermic and follows the PSO kinetic model. The adsorption mechanism was depicted and fits Langmuir isotherm LAC1 achieved the highest phenol removal efficiency (82 %), followed by LAC2 (74 %) and LC (37 %). LAC1 exhibited a moderate activation yield (45.81 %) and an acceptable activation ratio of 377 g H₃PO₄ per 100 g of LC. This study reveals that H₃PO₄/ZnCl₂ notably enhanced the surface properties and adsorption performances of Luffa fibers pretreated with NaOH and sodium hypochlorite.

以丝瓜纤维为原料，经NaOH和次氯酸钠预处理，分别用H3PO4/ZnCl2和HNO3活化，合成了新型活性炭LAC1和LAC2，并对其去除水中苯酚的性能进行了评价。采用pHPZC、SEM/EDX、FTIR、XRD、TGA、DSC和BET等分析方法，全面分析了新处理对LC结构的影响。FTIR分析证实了磷基团接枝到LAC1结构上，并形成交联的纤维素-磷酸网络。LAC1的比表面积（618.09 m2/g）提高了222倍。在LAC1上的吸附是自发的、放热的，符合PSO动力学模型。LAC1的苯酚去除率最高（82%），其次是LAC2（74%）和LC（37%）。LAC1的活化率适中（45.81%），每100 g LC的活化率为377 g H3PO4。研究表明，H3PO4/ZnCl2显著提高了NaOH和次氯酸钠预处理的丝瓜纤维的表面性能和吸附性能。

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