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

Tailoring the water vapor adsorption properties by thermal performance analysis of post-synthetically ion-exchanged LTA zeolite derived from Cameroonian kaolin 通过对喀麦隆高岭土合成后离子交换LTA沸石的热性能分析来调整水蒸气吸附性能

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-08-13 DOI: 10.1016/j.jiec.2025.08.017

Cyrille Ghislain Fotsop, Alexandra Lieb, Franziska Scheffler

LTA Zeolite was synthesized from natural kaolin using a mathematical approach and subsequently ion exchanged. XRF, XRD, FT-IR and Raman spectroscopy, TGA-DSC, solid-state NMR analysis, N₂ sorption, EDX and FE-SEM characterization techniques showed cubic-shaped particles with chamfered-edge crystals related to typical zeolite Na-A morphology with a homogeneous ion-exchange distribution. The water vapor adsorption capacity of synthetic zeolite and post-synthetically ion exchanged zeolite were in the sequence: 4A-Mg > 4A-Ca > 4A-Li > 4A-Na > 4A-K, with a maximum adsorption capacity of 10.41, 9.38, 7.75, 7.20 and 5.53 mmol/g, respectively. The heat of desorption, derived from the TGA analyses, was 947.9, 686.1, 641.0, 617.0 and 584.3 J/g for zeolites exchanged with Mg, Ca, Li, K and Na, respectively. GAB and Langmuir-Sips isothermal models presented better fitting performance with higher R² values in the wide range of relative humidity at 20 °C, 30 °C and 40 °C. Isosteric heat of adsorption (Q_st) was found to increase with increasing adsorption capacity and surface coverage. The Q_st of zeolites exchanged with K, Li, Ca and Mg 44.81, 49.82, 56.83 and 58.71 kJ mol⁻¹ for K, Li, Ca and Mg, respectively, in comparison to zeolite Na 47.24 kJ mol⁻¹. Zeolite 4A-Mg showed stable adsorption capacity over eight consecutive adsorption–desorption cycles. Cameroonian kaolin was found suitable as an ecological and cost-effective material for the production of zeolite A.

以天然高岭土为原料，采用数学方法合成了LTA沸石，并进行了离子交换。XRF、XRD、FT-IR和拉曼光谱、TGA-DSC、固体核磁共振分析、N2吸附、EDX和FE-SEM表征技术表明，颗粒呈立方形状，具有典型的Na-A分子筛的倒角边晶体，离子交换分布均匀。合成沸石和合成后离子交换沸石的水蒸气吸附量顺序为：4A-Mg >； 4A-Ca > 4A-Li > 4A-Na > 4A-K，最大吸附量分别为10.41、9.38、7.75、7.20和5.53 mmol/g。与Mg、Ca、Li、K和Na交换的沸石解吸热分别为947.9、686.1、641.0、617.0和584.3 J/g。GAB和Langmuir-Sips等温模型在20°C、30°C和40°C相对湿度较宽范围内具有较高的R2值，拟合性能较好。等容吸附热（Qst）随吸附容量和表面覆盖率的增加而增加。K、Li、Ca和Mg分子筛的交换Qst分别为44.81、49.82、56.83和58.71 kJ mol−1，Na分子筛的交换Qst为47.24 kJ mol−1。4A-Mg沸石在连续8次吸附-解吸循环中表现出稳定的吸附能力。喀麦隆高岭土是生产A型沸石的一种既环保又经济的原料。

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引用次数: 0

Sustainable Quercetin-based Porous Organic Polymer for Efficient Rhodamine B dye Removal and Phytotoxicity Assessment 槲皮素基多孔有机聚合物对罗丹明B染料的高效去除及植物毒性评价

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-08-12 DOI: 10.1016/j.jiec.2025.08.018

Swathi Thottathil , Yashoda Malgar Puttaiahgowda , Raja Selvaraj , Ramesh Vinayagam

Environmental sustainability has become a critical concern in the modern era, necessitating the development of innovative materials for effective water pollution remediation. The introduction of porous materials with high surface area, stability, and tailored properties has become an emerging era in this scenario. This study explores the synthesis of a quercetin-based novel porous organic polymer (QPOP) via Friedel-Crafts alkylation reaction for efficient Rhodamine B dye adsorption. Thus, synthesized QPOP exhibited a high surface area of 1172 m²/g with a pore volume of 1.024 cm³/g and unveiled an exceptional adsorption capacity of 499.52 mg/g for Rhodamine B dye removal. The adsorption process was fitted with the Freundlich isotherm, and the pseudo-second order kinetics model indicates a multilayer chemisorption nature of adsorption. The thermodynamics studies revealed that the adsorption process is spontaneous and endothermic. The mechanism of adsorption was explained by H-bonding, electrostatic and π-π interactions. Furthermore, recyclability studies were assessed for six consecutive cycles with excellent reusability up to 85 % efficiency. The phytotoxicity assessments using mung bean seeds confirmed low toxicity of the treated dye solution. This research contributes to the ongoing efforts to develop advanced materials for environmental remediation and aligns with the global need for clean water solutions.

环境可持续性已成为现代社会关注的焦点，因此需要开发创新材料来有效地修复水污染。在这种情况下，引入具有高表面积、稳定性和定制性能的多孔材料已经成为一个新兴时代。本研究通过Friedel-Crafts烷基化反应合成槲皮素基新型多孔有机聚合物（QPOP），用于罗丹明B染料的高效吸附。因此，合成的QPOP具有1172 m2/g的高表面积和1.024 cm3/g的孔体积，对罗丹明B染料的吸附能力为499.52 mg/g。吸附过程符合Freundlich等温线，拟二级动力学模型表明吸附具有多层化学吸附性质。热力学研究表明，吸附过程是自发的吸热过程。通过氢键、静电和π-π相互作用解释了吸附机理。此外，对六个连续循环的可回收性研究进行了评估，可重复使用性达到85%的效率。利用绿豆种子进行植物毒性评价，证实处理后的染料溶液毒性较低。这项研究有助于开发用于环境修复的先进材料，并与全球对清洁水解决方案的需求保持一致。

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引用次数: 0

Nanoarchitectonics of melittin-based polymersomes inducing lysosomal rupture for anticancer therapy 以蜂毒蛋白为基础的聚合体诱导溶酶体破裂的纳米结构用于抗癌治疗

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-08-11 DOI: 10.1016/j.jiec.2025.08.012

Youngheun Cho , Jooho Moon , Hyounkoo Han , Suhyeon Park , Yeon-Su Lim , Hee-Young Lee , Kyeong Sik Jin , Junmin Kim , Soobin Nam , Minwoo Park , Hyeong Jun Kim , Hyuncheol Kim

Melittin, a 26-amino-acid peptide derived from honeybee venom, exhibits potent anticancer activity but is limited by non-specific hemolysis and rapid in vivo clearance. To overcome these challenges, amphiphilic PLLA-Cys-melittin was synthesized by conjugating hydrophobic polylactic acid (PLLA) with hydrophilic melittin via a disulfide bond, forming self-assembling polymersomes in aqueous solutions. To enhance delivery efficiency and reduce hemolysis, the cationic polymersomes were coated with anionic human serum albumin (HSA), producing HSA-coated PLLA-Cys-melittin nanoparticles (PMH NPs). This HSA coating facilitates SPARC (Secreted Protein, Acidic and Rich in Cysteine)-mediated internalization into cancer cells, thereby ensuring targeted and safer delivery. Once internalized, the HSA layer dissociates under glutathione-rich conditions in lysosomes and the cytosol, releasing melittin and leading to cancer cell death. Cellular uptake studies revealed specific internalization and increased toxicity of PMH NPs in SPARC-positive cells, along with reduced hemolysis. In vivo experiments demonstrated a significant reduction in tumor volume in PMH NP-treated groups, without affecting body weight or causing major organ toxicity. Collectively, these findings suggest that PMH NPs offer a promising platform for the safe and effective delivery of melittin, providing a viable strategy for cancer therapy.

蜂毒素是一种从蜂毒中提取的26个氨基酸的肽，具有强大的抗癌活性，但受非特异性溶血和体内快速清除的限制。为了克服这些挑战，通过二硫键将疏水聚乳酸（PLLA）与亲水性蜂蜂素偶联，在水溶液中形成自组装聚合体，合成了两亲性PLLA- cys -melittin。为了提高输送效率和减少溶血，将阴离子人血清白蛋白（HSA）包被在阳离子聚合体上，产生包被HSA的pla - cys -melittin纳米颗粒（PMH NPs）。这种HSA涂层促进SPARC（分泌蛋白，酸性和富含半胱氨酸）介导的内化进入癌细胞，从而确保靶向和更安全的递送。一旦内化，HSA层在富含谷胱甘肽的溶酶体和细胞质中解离，释放蜂毒素，导致癌细胞死亡。细胞摄取研究显示，PMH NPs在sparc阳性细胞中的特异性内化和毒性增加，同时溶血减少。体内实验表明，PMH np处理组的肿瘤体积显著减少，但不影响体重或引起主要器官毒性。总的来说，这些发现表明PMH NPs为安全有效地递送蜂毒素提供了一个有希望的平台，为癌症治疗提供了一个可行的策略。

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引用次数: 0

Highly sensitive SnO2/Co3O4 nanocomposite materials for H2S gas sensor application 用于H2S气体传感器的高灵敏度SnO2/Co3O4纳米复合材料

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-08-10 DOI: 10.1016/j.jiec.2025.08.020

Amensisa Negasa Begi , Shahid Hussain , Min Liu , Jesse Nii Okai Amu-Darko , Dyana Aziz Bayz , Mohammed Mujahid Alam , Mohamed Hussien , Rajesh Kumar Manavalan , Guanjun Qiao , Guiwu Liu

The development of practical and adaptable hydrogen sulfide (H₂S) detection equipment for air quality monitoring remains challenging. Owing to their remarkable electronic band alignment and excellent features, p-n heterojunction-based sensing technology has attracted significant interest in H₂S gas sensors. In this study, n-type tin oxide/p-type cobalt oxide (n-SnO₂/p-Co₃O₄) heterojunctions were fabricated using a metal precursor solution, followed by a straightforward hydrothermal method using pure Co₃O₄ and molar ratios of SnO₂/Co₃O₄ = 0.18, SnO₂/Co₃O₄ = 0.35, and SnO₂/Co₃O₄ = 0.55. The synthesized samples were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution TEM (HR-TEM), Brunauer–Emmett–Teller (BET) analysis, and X-ray photoelectron spectroscopy (XPS) to evaluate their structural, morphological, and chemical properties, and surface areas. The nanocomposite sensor with a SnO₂/Co₃O₄ molar ratio of 0.35 demonstrated a response of 791.0–100 ppm of H₂S at a working temperature of 250 °C, with fast response and recovery times of 60 and 94 s, respectively. The SnO₂/Co₃O₄ nanocomposite enhanced the gas sensor sensitivity for detecting H₂S to a level as low as 1 ppm. The p-n junction, particle size, grain boundaries, active sites, and large surface area make it suitable for gas sensing.

开发实用且适应性强的硫化氢（H2S）检测设备用于空气质量监测仍然具有挑战性。基于p-n异质结的传感技术由于其显著的电子带对准和优异的特性，引起了人们对H2S气体传感器的极大兴趣。在本研究中，采用金属前驱体溶液制备n型氧化锡/p型氧化钴（n-SnO2/p-Co3O4）异质结，然后采用纯Co3O4， SnO2/Co3O4 = 0.18, SnO2/Co3O4 = 0.35, SnO2/Co3O4 = 0.55的水热法制备。利用x射线衍射（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、高分辨率电子显微镜（HR-TEM）、布鲁诺尔-埃米特-泰勒（BET）分析和x射线光电子能谱（XPS）对合成的样品进行了表征，评估了它们的结构、形态、化学性质和表面积。SnO2/Co3O4摩尔比为0.35的纳米复合材料传感器在250℃的工作温度下，对H2S浓度为791.0 ~ 100 ppm，响应速度快，恢复时间分别为60 s和94 s。SnO2/Co3O4纳米复合材料将气体传感器检测H2S的灵敏度提高到低至1 ppm。p-n结、粒度、晶界、活性位点和大表面积使其适合于气体传感。

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引用次数: 0

Tri-layer hydrogel scaffold supporting co-culture paracrine signaling for accelerated skin repair 支持共培养旁分泌信号加速皮肤修复的三层水凝胶支架

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-08-10 DOI: 10.1016/j.jiec.2025.08.021

Yeong Hwan Kim , Gyubok Lee , Dongwoo Kim , Young-Ju Jang , Sang Yoon Lee , Kangwon Lee , Suk Ho Bhang

The clinical management of complex skin wounds still lacks biomaterials that provide mechanical stability, pro-angiogenic signaling, and rapid tissue integration in a single platform. We engineered a tri-layer scaffold consisting of electrospun polycaprolactone fibers for initial structural support, a fibrin hydrogel for cell adhesion, and an alginate shell that creates a mildly hypoxic, nutrient-permissive niche. Co-seeding the scaffold with adipose-derived stem cells (ADSCs) and human umbilical vein endothelial cells (HUVECs) maintained high cell viability, strengthened paracrine crosstalk, and up-regulated genes involved in extracellular-matrix remodeling and angiogenesis in vitro. In a mouse dorsal-wound model the cell-laden construct accelerated closure, rebuilt a well-stratified epidermis and dermis, and generated dense microvascular networks compared with scaffold-only and single-cell controls. Histology confirmed organized collagen deposition with strong laminin and involucrin expression, indicating mature skin regeneration. The scaffold also displayed high swelling capacity, allowing it to conform to dynamic wound beds while managing exudate. These results show that a mechanically tuned tri-layer scaffold integrated with stem–endothelial co-culture can coordinate angiogenesis and tissue repair, supporting its potential for treating difficult cutaneous wounds.

复杂皮肤伤口的临床治疗仍然缺乏能够在单一平台上提供机械稳定性、促血管生成信号和快速组织整合的生物材料。我们设计了一个三层支架，由静电纺聚己内酯纤维组成，用于初始结构支持，纤维蛋白水凝胶用于细胞粘附，海藻酸盐外壳用于创建轻度缺氧，营养允许的生态位。在体外实验中，将脂肪源性干细胞（ADSCs）和人脐静脉内皮细胞（HUVECs）共种支架维持了较高的细胞活力，增强了旁分泌串扰，并上调了参与细胞外基质重塑和血管生成的基因。在小鼠背伤模型中，与支架和单细胞对照相比，载细胞结构加速了闭合，重建了分层良好的表皮和真皮，并产生了致密的微血管网络。组织学证实有组织的胶原沉积，层粘连蛋白和天青蛋白表达强烈，表明成熟的皮肤再生。支架还显示出高膨胀能力，使其符合动态伤口床，同时管理渗出物。这些结果表明，机械调谐的三层支架与茎内皮共培养相结合，可以协调血管生成和组织修复，支持其治疗困难皮肤伤口的潜力。

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引用次数: 0

WO3/Cu-doped eggshell-derived CaO nanocomposite for ultrasensitive electrochemical detection of epinephrine WO3/ cu掺杂蛋壳型氧化钙纳米复合材料用于肾上腺素的超灵敏电化学检测

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-08-10 DOI: 10.1016/j.jiec.2025.08.019

Shweta J. Malode , Ankita T. Halagatti , Abdulrahman Alasmari , Nagaraj P. Shetti

This study offers a novel and sustainable approach to waste reuse and environmental remediation via the synthesis of calcium oxide (CaO) nanoparticles doped with tungsten oxide and copper (WO₃/Cu) from the food waste eggshells for ultrasensitive electrochemical detection of epinephrine (EPI). EPI is also known as adrenaline, is a medication and hormone. Biowaste eggshell-derived CaO, obtained through calcination, serves as a sustainable support matrix for WO₃ and Cu, enhancing its porous hierarchical structure to prevent particle agglomeration and increase active sites. The nanocomposite was analyzed using various techniques including fourier-transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy, transmission electron microscopy, atomic force microscopy, and Raman spectroscopy. The WO₃/Cu:CaO was blended homogeneously with carbon paste electrode (CPE) for the sensitive detection and quantification of EPI in pH 7.4 phosphate buffer saline (PBS). The charge transfer resistance and other electrochemical impedance spectroscopy data of bare and modified CPE were used for identifying the efficiency of the fabricated electrode. Electrochemical studies evidenced a detection limit of 0.00246 µM (S/N = 3) with a linearity range 0.1–1000 µM. In the presence of metal ions and interfering excipients, the synthesised sensor’s selectivity was examined. The real-sample analysis of human serum, urine, and breast milk achieved 98–99 % recovery values. The good recovery values, excellent reproducibility make WO₃/Cu:CaO/CPE a suitable for analytical tool for non-enzymatic EPI detection at the nanolevel. The WO₃/Cu:CaO nanocomposite modified CPE holds significant promise for future development of portable, low-cost, point-of-care devices to repurpose into high-performance sensing materials for rapid detection of EPI in biomedical field.

本研究为垃圾再利用和环境修复提供了一种新的可持续方法，即从食物垃圾蛋壳中合成氧化钙（CaO）纳米粒子，掺杂氧化钨和铜（WO3/Cu），用于超灵敏电化学检测肾上腺素（EPI）。EPI又称肾上腺素，是一种药物和激素。通过煅烧获得的生物蛋壳源氧化钙作为WO3和Cu的可持续支撑基质，增强了其多孔分层结构，防止颗粒团聚，增加了活性位点。利用傅里叶变换红外光谱、x射线衍射、扫描电子显微镜与能量色散x射线光谱、透射电子显微镜、原子力显微镜和拉曼光谱等多种技术对纳米复合材料进行了分析。将WO3/Cu:CaO与碳糊电极（CPE）均匀混合，在pH为7.4的磷酸缓冲盐水（PBS）中灵敏地检测和定量EPI。利用裸CPE和改性CPE的电荷转移电阻等电化学阻抗谱数据对制备电极的效率进行了鉴定。在0.1 ~ 1000µM的线性范围内，检测限为0.00246µM （S/N = 3）。在金属离子和干扰赋形剂存在的情况下，考察了所合成传感器的选择性。人血清、尿液和母乳的实际样品分析回收率达到98 - 99%。WO3/Cu:CaO/CPE具有良好的回收率和良好的重现性，可作为纳米水平非酶促EPI检测的分析工具。WO3/Cu:CaO纳米复合材料修饰的CPE在未来便携、低成本、即时护理设备的发展中具有重要的前景，可以重新用于生物医学领域快速检测EPI的高性能传感材料。

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引用次数: 0

A novel fast and thorough strategy for azo dye wastewater treatment using an “Fe-based material-sludge” combination system 采用“铁基材料-污泥”组合系统处理偶氮染料废水的一种快速彻底的新策略

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-08-09 DOI: 10.1016/j.jiec.2025.08.004

Yue Yang , Xiang Liu , Xue Bai, Zhenghao Fang, Ran Bi, Min Zhao, Daizong Cui

In this study, both nZVI and nZVI/Cu exhibited synergistic effects with anaerobic sludge on the treatment of dying wastewater. The decolorization rates in both systems were 17.04–21.97 % higher than that in the sludge alone system during the semi-continuous treatment process. The microbes could maintain their oxidation/antioxidation balance by increasing the activity of enzymes responsible for ROS elimination when nanomaterials were added. The microbial diversity analysis showed that the structure of the microbial community changed, and the dominant genuera were Ethanoligenens and Caproiciproducens. The addition of nanomaterials could help maintain the gas production efficiency of anaerobic sludge. During the last day of the treatment, 33.00 and 31.50 mL of gas could be collected from nZVI and nZVI/Cu addition system, respectively, while the gas production of “sludge alone” system had dropped to 8 mL/d. A ZVI-A/O MFC system was designed and built after optimization. During the continuous wastewater treatment process, the improved system could maintain the decolorization rate of dyes, the removal rates of COD and NH₄⁺-N above 95 %, 85 % and 86 % respectively, which were all significantly higher than those of in the traditional reactors. Moreover, the electrons generated in the MFC system were mainly used for CH₄ production.

在本研究中，nZVI和nZVI/Cu与厌氧污泥在处理垂死废水中均表现出协同效应。在半连续处理过程中，两种系统的脱色率均比污泥单独系统高17.04 ~ 21.97%。当纳米材料加入时，微生物可以通过增加活性氧消除酶的活性来维持其氧化/抗氧化平衡。微生物多样性分析表明，微生物群落结构发生了变化，优势属为寡乙醇属和产豆属。纳米材料的加入有助于维持厌氧污泥的产气效率。在处理的最后一天，nZVI和nZVI/Cu添加系统的气体收集量分别为33.00和31.50 mL，而“单独污泥”系统的产气量已降至8 mL/d。优化后，设计并搭建了ZVI-A/O MFC系统。在废水连续处理过程中，改进后的系统可保持染料的脱色率，COD和NH4+-N的去除率分别在95%、85%和86%以上，均显著高于传统反应器。MFC系统产生的电子主要用于CH4的生成。

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引用次数: 0

Isotherm and kinetic study of Malachite green and Congo red removal using Spirulina platensis/CMC/ZnO as a green reusable bioadsorbent 螺旋藻/CMC/ZnO作为绿色可重复使用生物吸附剂去除孔雀石绿和刚果红的等温线及动力学研究

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-08-07 DOI: 10.1016/j.jiec.2025.08.013

Peyman Abazari , Seyed Ali Hosseini Tafreshi , Saeed Masoum

A novel reusable bioadsorbent, Spirulina platensis/CMC/ZnO, was synthesized using Spirulina platensis algae, carboxymethyl cellulose (CMC), and zinc oxide nanoparticles via a co-precipitation method. The material was thoroughly characterized by FT-IR, EDS, elemental mapping, XRD, TGA, and FE-SEM techniques. This bioadsorbent was employed to remove Malachite Green (MG) and Congo Red (CR) dyes from binary mixtures, showing significantly enhanced efficiency compared to individual components. Optimization using Box–Behnken Design (BBD) involved 27 experiments, achieving maximum removal efficiencies of 99.4 % for MG and 99.8 % for CR, with optimal conditions requiring 0.009 g of adsorbent and a 40-minute contact time. Isotherm studies indicated that both dyes followed the Langmuir model in single-dye systems, and the extended Langmuir model was applicable to binary systems. Maximum adsorption capacities in single solutions were 104 mg/g for MG and 80 mg/g for CR, slightly decreasing to 102 mg/g and 72 mg/g in binary systems. Kinetic analysis revealed that the adsorption process followed a pseudo-second-order model. The bioadsorbent demonstrated high reproducibility (%RSD < 3.5 %), good reusability for at least six cycles, and strong thermal and salt stability, making it a promising candidate for dye removal in harsh environmental conditions.

以螺旋藻、羧甲基纤维素（CMC）和氧化锌纳米颗粒为原料，采用共沉淀法合成了一种新型可重复使用的生物吸附剂——螺旋藻/CMC/ZnO。通过FT-IR、EDS、元素图、XRD、TGA、FE-SEM等技术对材料进行了表征。该生物吸附剂用于去除二元混合物中的孔雀石绿（MG）和刚果红（CR）染料，与单个组分相比，效率显著提高。采用Box-Behnken Design （BBD）进行优化，共进行了27次实验，MG和CR的最大去除率分别为99.4%和99.8%，最佳条件为吸附剂用量为0.009 g，接触时间为40分钟。等温线研究表明，两种染料在单染料体系中均符合Langmuir模型，扩展的Langmuir模型适用于二元体系。mg和CR在单溶液中的最大吸附量分别为104 mg/g和80 mg/g，在双溶液中的最大吸附量分别为102 mg/g和72 mg/g。动力学分析表明，吸附过程符合准二阶模型。该生物吸附剂具有较高的重现性（%RSD < 3.5%），至少6次循环的可重复使用性，以及较强的热稳定性和盐稳定性，使其成为在恶劣环境条件下去除染料的有希望的候选者。

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引用次数: 0

A review of PEDOT: PSS-based resistive gas sensors PEDOT: pss型电阻式气体传感器的研究进展

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-08-07 DOI: 10.1016/j.jiec.2025.08.014

M. Hjiri , G. Neri

Conducting polymers (CPs) with high transparency, good environmental stability, and high conductivity, are effective materials for gas sensing applications. There are various types of CPs and among them poly (3,4-ethylenedioxythiophene): poly (styrenesulfonic acid) abbreviated as (PEDOT: PSS) stands one of the most widely used CPs for practical applications. Thanks to its low price, high conductivity, ease of synthesis, high environmental stability, biocompatibility, and excellent mechanical flexibility, PEDOT: PSS is one of the most important CPs for gas sensing applications. In this review, we have discussed various gas sensing features of PEDOT: PSS sensors. Ability to work at low and room temperature is one of the main advantage of PEDOT: PSS gas sensors for detection of gases. To further enhance their gas sensing characteristics, they are doped, decorated, and composited with other materials and we have explained the sensing properties and gas sensing mechanism in detail. We believe that this article can deliver new concepts and idea for the researchers who work in field of gas sensors.

导电聚合物（CPs）具有高透明度、良好的环境稳定性和高导电性，是气体传感应用的有效材料。CPs有多种类型，其中聚（3,4-乙烯二氧噻吩）：聚（苯乙烯磺酸）缩写为（PEDOT: PSS）是实际应用最广泛的CPs之一。由于其低廉的价格，高导电性，易于合成，高环境稳定性，生物相容性和优异的机械灵活性，PEDOT: PSS是气敏应用中最重要的CPs之一。在这篇综述中，我们讨论了PEDOT: PSS传感器的各种气体传感特性。能够在低温和室温下工作是PEDOT: PSS气体传感器用于气体检测的主要优势之一。为了进一步增强它们的气敏特性，我们对它们进行了掺杂、修饰和与其他材料的复合，并详细解释了它们的传感性能和气敏机理。我们相信本文可以为气体传感器领域的研究人员提供新的概念和思路。

引用次数: 0

Pore size Tuning of activated carbon fiber through chemical drilling and widening for adsorption of chemical warfare agent simulant 通过化学钻孔和扩孔调整活性炭纤维孔径以吸附化学战剂模拟剂

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry

Pub Date : 2025-08-07 DOI: 10.1016/j.jiec.2025.08.015

Hyun Min Chae , Hanul Shin , Ki Bong Lee

Activated carbon fiber has received significant interest as an excellent adsorbent for chemical warfare agents. While several studies have been conducted on improving its adsorption performance, there is insufficient research dedicated to improving adsorption performance through the selection of an optimal pore size. In this study, activated carbon fibers with pores smaller than 1.0 nm were developed through KOH reactivation and those with pores larger than 1.0 nm were developed through steam reactivation. Surface and structural analyses revealed that KOH reactivation formed pores through chemical drilling with potassium functioning as an activation agent, while steam reactivation formed pores through widening the interparticle space (etching outer layers of the carbon particles). Therefore, the pore size distributions of activated carbon fibers could be controlled through KOH or steam reactivation. The prepared reactivated carbon fibers were applied to the adsorption of dimethyl methylphosphonate (DMMP), a chemical warfare agent simulant, and the correlation between DMMP uptake and pore size was investigated. The adsorption of DMMP showed a close relation with the pore volume for a pore size of 1.3–2.2 nm, with the strongest correlation observed for a pore size of 1.6–1.9 nm. Steam reactivation is advantageous for increasing the pore volume for a pore size of 1.6–1.9 nm, thereby proving effective in enhancing the DMMP adsorption performance by 150% compared to the conventional activated carbon fiber.

活性炭纤维作为一种优良的化学战剂吸附剂受到了广泛的关注。虽然已经有一些关于提高其吸附性能的研究，但通过选择最佳孔径来提高吸附性能的研究还不够。本研究采用KOH活化法制备孔径小于1.0 nm的活性炭纤维，采用蒸汽活化法制备孔径大于1.0 nm的活性炭纤维。表面和结构分析表明，KOH活化通过化学钻孔形成孔隙，钾作为活化剂，而蒸汽活化通过扩大颗粒间空间（蚀刻碳颗粒外层）形成孔隙。因此，可以通过KOH或蒸汽再活化来控制活性炭纤维的孔径分布。将制备的再生活性炭纤维用于化学战剂模拟物甲基膦酸二甲酯（DMMP）的吸附，并研究了DMMP吸附量与孔径的关系。在1.3 ~ 2.2 nm孔径范围内，DMMP的吸附量与孔体积密切相关，在1.6 ~ 1.9 nm孔径范围内相关性最强。在孔径为1.6-1.9 nm的情况下，蒸汽再活化有利于增加孔体积，因此与传统活性炭纤维相比，其吸附DMMP的性能提高了150%。

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