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First-time evaluation of 137Cs adsorption onto virgin PLA, PET, and PVC microplastics 137Cs在原聚乳酸、PET和PVC微塑料上吸附的首次评价
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2026-03-01 Epub Date: 2026-01-23 DOI: 10.1016/j.ceja.2026.101057
Süleyman İnan , Vipul Vilas Kusumkar , Helena Švajdlenková , Peter Machata , Jan Bednárek , Eva Viglašová , Michal Galamboš
{"title":"First-time evaluation of 137Cs adsorption onto virgin PLA, PET, and PVC microplastics","authors":"Süleyman İnan ,&nbsp;Vipul Vilas Kusumkar ,&nbsp;Helena Švajdlenková ,&nbsp;Peter Machata ,&nbsp;Jan Bednárek ,&nbsp;Eva Viglašová ,&nbsp;Michal Galamboš","doi":"10.1016/j.ceja.2026.101057","DOIUrl":"10.1016/j.ceja.2026.101057","url":null,"abstract":"<div><div>This study presents the first investigation into the adsorption behaviours of polylactic acid (PLA), polyethylene terephthalate (PET), and polyvinyl chloride (PVC) virgin microplastics (MPs) for cesium-137 (<sup>137</sup>Cs) from aqueous solutions. The MPs were characterized using field-emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and pHpzc analysis. The effects of various parameters, including solution pH, contact time, Cs⁺ concentration, adsorbent dosage, temperature, and the presence of matrix ions, were examined.</div><div>The adsorption study results indicate that adsorption capacity is strongly influenced by pH. PLA shows enhanced uptake under alkaline conditions (maximum: 29.0 µg/g at pH 8), PET favors acidic conditions, while PVC shows different behavior with peak adsorption at pH 4. Kinetic analysis revealed that Cs⁺ adsorption follows a pseudo-second-order model, indicating chemisorption dominance, which was further confirmed by FT-IR and XPS analyses, with PLA achieving the fastest and highest uptake (∼39 µg/g) due to abundant functional groups. Isotherm modelling revealed multilayer adsorption on PLA and PET (Freundlich model) and monolayer adsorption on PVC (Langmuir model), with the latter exhibiting the highest theoretical capacity of 10.28 mg/g. Adsorbent dosage inversely affected adsorption capacity, while thermodynamic studies confirmed the process is spontaneous, endothermic, and entropy-driven. Under competitive cation conditions, PVC demonstrated a pronounced increase in Cs<sup>+</sup> uptake possibly due to the ion-bridging due to steric or functional group constraints.</div><div>These findings elucidate microplastic interactions with Cs<sup>+</sup>, providing valuable insights for environmental risk assessment and adsorption behaviour of the PLA, PET and PVC MPs for the transport of Cs<sup>+</sup>in the environment.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 101057"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146073729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanism-based kinetic modeling of magnesium sulfate hydration for thermochemical energy storage 基于机理的硫酸镁水化热化学储能动力学建模
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2026-03-01 Epub Date: 2026-01-19 DOI: 10.1016/j.ceja.2026.101048
Tobias Niederkofler , Aldo Giovannini , Roman Lackner
{"title":"Mechanism-based kinetic modeling of magnesium sulfate hydration for thermochemical energy storage","authors":"Tobias Niederkofler ,&nbsp;Aldo Giovannini ,&nbsp;Roman Lackner","doi":"10.1016/j.ceja.2026.101048","DOIUrl":"10.1016/j.ceja.2026.101048","url":null,"abstract":"<div><div>Magnesium sulfate and water form a promising reaction pair for thermochemical energy storage due to their high energy density, yet practical implementation is hindered by slow hydration kinetics. Although various studies have reported qualitative observations of this behavior, a quantitative assessment of how key operating conditions affect the reaction rate has been lacking. This study systematically examines the influence of temperature, water vapor pressure, particle size, and layer thickness on the hydration rate of magnesium sulfate using thermogravimetric analysis. A kinetic model is developed to quantify the dependence of the reaction rate on these parameters. The results show that the hydration proceeds through a single-step reaction that is well described by a contracting-sphere model. Model simulations closely reproduce the experimental data, enabling reliable prediction of hydration behavior under realistic operating conditions. The findings clarify the underlying reaction behavior and provide a foundation for reliable performance prediction in future reactor design and system modeling.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 101048"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Carbon capture, utilization, and storage: Scientific basis, practical applications, and climate role 碳捕获、利用和封存:科学基础、实际应用和气候作用
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2026-03-01 Epub Date: 2026-01-21 DOI: 10.1016/j.ceja.2026.101049
Diane Mariella Maqui, Angelo Earvin Sy Choi
{"title":"Carbon capture, utilization, and storage: Scientific basis, practical applications, and climate role","authors":"Diane Mariella Maqui,&nbsp;Angelo Earvin Sy Choi","doi":"10.1016/j.ceja.2026.101049","DOIUrl":"10.1016/j.ceja.2026.101049","url":null,"abstract":"<div><div>Carbon Capture Utilization and Storage (CCUS) has gained renewed attention as coal continues to dominate global energy systems despite escalating climate concerns. This review outlines the scientific foundations, integration pathways, and practical viability of CCUS in coal-fired applications, focusing on post-combustion, pre-combustion, and oxyfuel processes. It examines emerging utilization technologies that convert captured carbon into industrial and construction inputs. CO₂ transport behavior depends heavily on pressure, temperature, and impurity content; imbalances in these variables trigger phase transitions among liquid, gas, and supercritical states. The review draws from modeled trajectories by the Intergovernmental Panel on Climate Change (IPCC) and International Energy Agency (IEA), aligning CCUS with national strategies in the United States, China, and India. CCUS enables emission reductions in emission-intensive sectors and lowers carbon intensity in thermal power generation. High costs, regulatory uncertainty, and fragmented policy and infrastructure constrain its large-scale deployment. This study presents a unified modification strategy that integrates durability, photothermal responsiveness, and self-cleaning behavior into a scalable and cost-effective graphite felt substrate. The approach transcends conventional single-property optimization by offering a multifunctional surface capable of sustained adsorption and thermal recovery under direct sunlight, marking a step toward practical and economically viable environmental remediation applications.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 101049"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synergistic effects of a zirconium doped stannate-carbon nitride nanocomposite on design of electrochemical sensor for sensitive detection of the antiandrogen drug flutamide 锆掺杂锡-氮化碳纳米复合材料对抗雄激素药物氟他胺灵敏检测电化学传感器设计的协同效应
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2026-03-01 Epub Date: 2025-12-02 DOI: 10.1016/j.ceja.2025.100981
Chandran Bhuvaneswari , Ponnaiah Sathish Kumar , Arumugam Elangovan , Ganesh Arivazhagan , Young-Ki Kim
{"title":"Synergistic effects of a zirconium doped stannate-carbon nitride nanocomposite on design of electrochemical sensor for sensitive detection of the antiandrogen drug flutamide","authors":"Chandran Bhuvaneswari ,&nbsp;Ponnaiah Sathish Kumar ,&nbsp;Arumugam Elangovan ,&nbsp;Ganesh Arivazhagan ,&nbsp;Young-Ki Kim","doi":"10.1016/j.ceja.2025.100981","DOIUrl":"10.1016/j.ceja.2025.100981","url":null,"abstract":"<div><div>Flutamide (FLT), an anti-androgen drug widely used in anti-cancer therapy, can cause serious hepatotoxic side effects at high doses. However, released from industrial and hospital effluents, FLT is not fully removed by conventional water treatments, resulting in contamination of water sources that threatens aquatic ecosystems and thus human health. Therefore, there has been a pressing need for sensitive and reliable FLT monitoring, but existing techniques are often costly, labor-intensive, and complex, limiting their practicality. To address this challenge, herein we report the novel design of electrochemical sensor based on a new class of electrode modifier, ZS-CN nanocomposite, synthesized by integrating zirconium (Zr)-doped SnO<sub>2</sub> nanoparticles (ZS) onto 2D graphitic carbon nitride nanosheets (CN). Especially, we introduce Zr as a new dopant in SnO<sub>2</sub> and reveal that the correlative coupling of ZS with porous CN allows for their intimate interfacial contact that promotes efficient electron transfer and electrocatalytic activity, while keeping the functional groups of both components active. As a result, the electrochemical sensor designed by the ZS-CN nanocomposite coated glassy carbon electrode demonstrates an outstanding level of selectivity and sensitivity (1.6553 µA µM<sup>−1</sup> cm<sup>−2</sup>) for FLT with a low detection limit (0.009 µM) and a wide detection linear range (0.04–1166 µM), alongside robust reproducibility, stability, and applicability in real-world samples (e.g., human urine and river water). Furthermore, its cyclic voltammetric responses provide mechanistic insights into the correlation between multi-electron redox process and FLT transformation pathways, informing future interfacial engineering strategies for designing versatile electrochemical systems for pharmaceutical pollutant monitoring.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 100981"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145691920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modeling of the Ni(II) removal from aqueous solutions by ion exchange resin: Comparison of various machine learning approaches 离子交换树脂去除水溶液中Ni(II)的建模:各种机器学习方法的比较
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2026-03-01 Epub Date: 2025-12-03 DOI: 10.1016/j.ceja.2025.100987
Shahrzad Maleki , Maryam Mousavifard , Ayoub Karimi-Jashni
{"title":"Modeling of the Ni(II) removal from aqueous solutions by ion exchange resin: Comparison of various machine learning approaches","authors":"Shahrzad Maleki ,&nbsp;Maryam Mousavifard ,&nbsp;Ayoub Karimi-Jashni","doi":"10.1016/j.ceja.2025.100987","DOIUrl":"10.1016/j.ceja.2025.100987","url":null,"abstract":"<div><div>This study aims to investigate the removal of Ni(II) ions from aqueous solutions using an ion exchange resin, focusing on various machine learning approaches to predict the process. The research highlights the efficiency of Amberlite IR120 Na as a strong acidic cation exchange resin, examining its adsorption capacity under varying conditions, including resin dose, initial Ni(II) concentration, solution pH, temperature, and contact time. The adsorption kinetics were accurately described by the pseudo-second-order kinetic model. Additionally, both surface adsorption and intra-particle diffusion played roles in the steps of the adsorption rate. The adsorption isotherm data fitted well with the Langmuir model, indicating a maximum adsorption capacity of 134.8 mg/g. Moreover, machine learning techniques were utilized to predict the resin’s performance, evaluating five diverse models: Support Vector Regression (SVR), Random Forest, Decision Tree, Multi-Layer Perceptron (MLP), and Polynomial Regression. The results showed that the SVR model performed better than the others, with a training <em>R</em>² of 0.990 and testing <em>R</em>² of 0.973, along with the lowest mean absolute error and mean squared error. These findings demonstrate the effectiveness of machine learning in accurately modeling the complex relationships within the adsorption process, thus offering valuable insights for optimizing heavy metal removal from wastewater.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 100987"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145691577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structure-property relationship of phosphonium-based polymerized ionic liquids as anion conducting membranes 磷基聚合离子液体作为阴离子导电膜的结构-性能关系
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2026-03-01 Epub Date: 2025-12-25 DOI: 10.1016/j.ceja.2025.101007
Enrica Fontananova , Francesco Galiano , Raffaella Mancuso , Daria Talarico , Gianluca Di Profio , Lorenzo Guazzelli , Christian S. Pomelli , Mario Ferraro , Raffaele Filosa , Vincenzo Formoso , Raffaele G. Agostino , Bartolo Gabriele , Alberto Figoli
{"title":"Structure-property relationship of phosphonium-based polymerized ionic liquids as anion conducting membranes","authors":"Enrica Fontananova ,&nbsp;Francesco Galiano ,&nbsp;Raffaella Mancuso ,&nbsp;Daria Talarico ,&nbsp;Gianluca Di Profio ,&nbsp;Lorenzo Guazzelli ,&nbsp;Christian S. Pomelli ,&nbsp;Mario Ferraro ,&nbsp;Raffaele Filosa ,&nbsp;Vincenzo Formoso ,&nbsp;Raffaele G. Agostino ,&nbsp;Bartolo Gabriele ,&nbsp;Alberto Figoli","doi":"10.1016/j.ceja.2025.101007","DOIUrl":"10.1016/j.ceja.2025.101007","url":null,"abstract":"<div><div>Membrane technology in sustainable energy conversion and storage requires the development of tailored membranes able to conjugate high performance (ionic conductivity, perm-selectivity and durability) with acceptable costs and sustainability in their production. In this perspective, polymerizable ionic liquids (PILs) are conductive materials suitable to make high-performing and green ion-conductive membranes combining the unique properties of the ionic liquids, with the advantages of a macromolecular crosslinked polymer. This work presents a deep investigation of the structure-property relationship of phosphonium-based PILs as a functional material for anion-conducting membranes produced by casting and successive photopolymerization (almost solvent-free conditions). The PIL-based membranes prepared were dense, flexible, and completely stable after prolonged contact with water, saline and alkaline solutions. The crosslinking reaction avoided the dissolution of the membrane in water. However, mechanical test highlighted the role of water uptake on mechanical properties of the membranes. Moreover, it was also validated the possibility to blend different PILs in order to combine in synergic way the specific advantages of each component. Electrochemical impedance spectroscopy and membrane potential measurements pointed out a trade-off relationship between the ionic conductivity and perm-selectivity. Moreover, Small Angle X-ray Scattering and differential scanning calorimetry findings shed light on the role of the chemical nature of the PIL on membrane microstructure and transport properties. The main outcome of this research is the possibility to balance the low ionic resistance transport through the charged PILs, with a good stability, tailoring the chemistry of these advanced functional materials.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 101007"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145938921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sustainable removal of methylene blue using minimally modified hydrochar from durian peels with experimental adsorption and density functional theory studies 基于实验吸附和密度泛函理论研究的最小改性榴莲果皮碳氢化合物可持续去除亚甲基蓝
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2026-03-01 Epub Date: 2025-12-23 DOI: 10.1016/j.ceja.2025.101011
Piangjai Peerakiatkhajohn , Praewa Wongburi , Kamonwat Nakason , Bunyarit Panyapinyopol , Khanin Nueangnoraj , Phongphot Sakulaue , Davide Poggio , William Nimmo , Jakkapon Phanthuwongpakdee
{"title":"Sustainable removal of methylene blue using minimally modified hydrochar from durian peels with experimental adsorption and density functional theory studies","authors":"Piangjai Peerakiatkhajohn ,&nbsp;Praewa Wongburi ,&nbsp;Kamonwat Nakason ,&nbsp;Bunyarit Panyapinyopol ,&nbsp;Khanin Nueangnoraj ,&nbsp;Phongphot Sakulaue ,&nbsp;Davide Poggio ,&nbsp;William Nimmo ,&nbsp;Jakkapon Phanthuwongpakdee","doi":"10.1016/j.ceja.2025.101011","DOIUrl":"10.1016/j.ceja.2025.101011","url":null,"abstract":"<div><div>This study investigated the use of hydrochar (HC) derived from durian peels as an adsorbent for removing methylene blue (MB) from an aqueous environment. HC was synthesized from durian peels using hydrothermal carbonization under varying temperature (160 – 200 °C) and time (2 – 6 h) conditions. The optimal condition 180 °C for 2 h (HC-180–2) was identified. HC-180–2 was evaluated in MB adsorption experiments and adsorbent characterization. It achieved a maximum MB adsorption capacity (<em>q</em>) of 51.6 mg/g at room temperature, reaching equilibrium within 150 min, and the <em>q</em> value increased to 59.2 mg/g at 65 °C. The adsorption followed pseudo-second-order kinetics (R<sup>2</sup> = 0.996) and Langmuir isothermal behavior (R<sup>2</sup> = 0.996), indicating chemisorption on energetically uniform adsorption sites. Thermodynamic analysis yielded Gibbs free energy values ranging from -43.0 to -55.3 kJ/mol and an enthalpy change of 48.5 kJ/mol, which further confirmed the spontaneous and endothermic nature of the chemisorption process. The surface area of HC-180–2 increased from 3.04 to 6.36 m²/g compared to the biomass, confirming the chemisorption and dependence on chemical functionality rather than physical surface area. Structural characterizations revealed enhanced aromatization and functional group formation, including sulfone and ester groups. Density functional theory calculations revealed two possible HC-MB conformation with adsorption mechanisms involving hydrogen bonding, π-π stacking and π-sulfur interactions. The chemisorption nature was also confirmed through Quantum Theory of Atoms in Molecules electron density pathway analysis. While the adsorption capacity was moderate compared to chemically modified adsorbents, the minimally processed durian peels HC positioned itself as a promising green alternative for MB removal.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 101011"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145938915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Strategies of designing advanced dual-functional metal-organic frameworks for sustainable wastewater treatment applications 设计先进的双功能金属-有机框架的可持续废水处理应用策略
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2026-03-01 Epub Date: 2026-01-08 DOI: 10.1016/j.ceja.2026.101040
Pasha W. Sayyad , Hassan Gomaa , Rana Sabouni
{"title":"Strategies of designing advanced dual-functional metal-organic frameworks for sustainable wastewater treatment applications","authors":"Pasha W. Sayyad ,&nbsp;Hassan Gomaa ,&nbsp;Rana Sabouni","doi":"10.1016/j.ceja.2026.101040","DOIUrl":"10.1016/j.ceja.2026.101040","url":null,"abstract":"<div><div>Metal-organic frameworks (MOFs) have emerged as promising materials for advanced wastewater treatment owing to their tunable structures and versatile functionalities. A myriad of studies has explored their role in detection, adsorption, and photocatalytic degradation. However, designing MOF-based composites capable of integrating dual functions within one framework remains a considerable challenge. As a result, and despite of their potential, dual-functional MOF systems are still relatively scarce and developing strategies to enable detection and removal/degradation of pollutants with single framework for environment applications has become the focus of many researchers. This review highlights cutting-edge strategies that advance the development of multifunctional MOF-based composites for wastewater treatment, along with future perspectives for their sustainable utilization, current challenges and future research directions. We believe this review would inspire researchers to explore emerging strategies to develop multifunctional MOF for advancing water treatment technologies toward next generation of sustainable environment applications.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 101040"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Green conversion of potato-based starchy waste into photocatalyst coupled nanoparticles for efficient removal of reactive red 195 dye from textile effluents 马铃薯基淀粉废物转化为光催化剂偶联纳米颗粒的绿色转化,以有效去除纺织废水中的活性红195染料
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2026-03-01 Epub Date: 2025-12-24 DOI: 10.1016/j.ceja.2025.101013
M.M. Nour , Maha A. Tony , Mai K. Fouad , Hossam A. Nabwey
{"title":"Green conversion of potato-based starchy waste into photocatalyst coupled nanoparticles for efficient removal of reactive red 195 dye from textile effluents","authors":"M.M. Nour ,&nbsp;Maha A. Tony ,&nbsp;Mai K. Fouad ,&nbsp;Hossam A. Nabwey","doi":"10.1016/j.ceja.2025.101013","DOIUrl":"10.1016/j.ceja.2025.101013","url":null,"abstract":"<div><div>A sustainable and low-cost route is presented for converting potato-based starchy waste into biochar–magnetite (P-Char@Fe₃O₄) composites that function as efficient heterogeneous photo-Fenton catalysts for the degradation of the azo dye Reactive Red 195 (RR195) in textile effluents. Potato peel biochars pyrolyzed at 200–600 °C were coupled with Fe₃O₄ nanoparticles that is prepared by co-precipitation to produce P-Char200@Fe₃O₄, P-Char400@Fe₃O₄, and P-Char600@Fe₃O₄. SEM/EDS and elemental mapping confirmed the successful anchoring of Fe₃O₄ and revealed temperature-dependent dispersion and crystallinity across the carbon matrix. Catalytic screening showed a performance trend of P-Char200@Fe₃O₄ &gt; <em>P</em>-Char400@Fe₃O₄ &gt; <em>P</em>-Char600@Fe₃O₄, attributed to the preservation of oxygenated surface functionalities and accessible pore structures at lower/intermediate pyrolysis temperatures. Optimized operation with the robust P-Char400@Fe₃O₄ (pH 6.5, catalyst 40 mg L⁻¹, H₂O₂ 400 mg L⁻¹, UV irradiation) achieved nearly 100% RR195 removal within 20 min. The system remained tolerant to realistic conditions, showing enhanced performance with increasing temperature (32–60 °C) but declining efficiency at high dye loads or excessive H₂O₂. Kinetic analysis confirmed pseudo-first-order behavior (R² &gt; 0.98), while Arrhenius/Eyring evaluation yielded an activation energy of 30.98 kJ mol⁻¹, positive enthalpy of activation, and negative entropy that consistent with a surface-organized, radical-mediated mechanism. The catalyst preserved about 80% efficiency after six reuse cycles, demonstrating strong magnetic recoverability and structural stability. Compared with conventional Fenton and modified systems, the agro-waste-derived P-Char@Fe₃O₄ enables rapid decolorization at near-neutral pH, reduces sludge generation, and advances circular-economy valorization of food-processing residues, highlighting its potential for scalable textile wastewater treatment.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 101013"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Demonstration of H2/CO2 acetogenesis by Acetobacterium wieringae in a trickle-bed reactor without organic substrates wieringae醋酸杆菌在无有机底物的滴床反应器中氢气/二氧化碳丙酮生成的演示
IF 7.1
Chemical Engineering Journal Advances Pub Date : 2026-03-01 Epub Date: 2025-12-30 DOI: 10.1016/j.ceja.2025.101029
Paola Andrea Palacios , Michael Vedel Wegener Kofoed
{"title":"Demonstration of H2/CO2 acetogenesis by Acetobacterium wieringae in a trickle-bed reactor without organic substrates","authors":"Paola Andrea Palacios ,&nbsp;Michael Vedel Wegener Kofoed","doi":"10.1016/j.ceja.2025.101029","DOIUrl":"10.1016/j.ceja.2025.101029","url":null,"abstract":"<div><div>CO<sub>2</sub>-to-acetate applications via microbial H<sub>2</sub>/CO<sub>2</sub> gas fermentation were investigated in a 2.2 L trickle-bed reactor (TBR) using <em>Acetobacterium wieringae</em> as a mesophilic monoculture. The fermentation was carried out at a continuous gas flow rate of 25 NmL min⁻¹ in a minimal medium without any organic substrates, including yeast extract. Monitoring of gas consumption, product quantification, pH, pressure, OD₆₀₀, and optical microscopy revealed that the TBR produced 18.4 g L⁻¹ of acetate as the sole end organic acid at a constant pH and OD₆₀₀ of 0.2. This study highlights the ability of <em>A. wieringae</em> to form biofilm and sustain long-term stability for acetate production, as the fermentation was carried over 49 days. However, quantitative analyses showed that the largest part of the biomass was present in the liquid layer surrounding the biocarriers. Further optimization is required before scaling up, including reducing gas flow rates and employing carrier materials that enhance cell attachment and biofilm formation. This work provides a foundation for developing more sustainable acetate production systems using minimal resources, renewable gases, and efficient biocatalysts.</div></div>","PeriodicalId":9749,"journal":{"name":"Chemical Engineering Journal Advances","volume":"25 ","pages":"Article 101029"},"PeriodicalIF":7.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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