Applied Catalysis A: General最新文献_第8页

Catalytic performance and mechanism of toluene oxidation in high humidity over the mesoporous titania-ceria-supported Pt or Pd catalysts 介孔钛-铈负载Pt或Pd催化剂在高湿条件下对甲苯氧化的催化性能及机理

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2025-04-07 DOI: 10.1016/j.apcata.2025.120277

Fuping Xu , Jia Wang , Yutong Zhao , Hongxia Lin , Hongxia Chen , Yi Zhang , Xuefeng Wei , Hongxing Dai

{"title":"Catalytic performance and mechanism of toluene oxidation in high humidity over the mesoporous titania-ceria-supported Pt or Pd catalysts","authors":"Fuping Xu , Jia Wang , Yutong Zhao , Hongxia Lin , Hongxia Chen , Yi Zhang , Xuefeng Wei , Hongxing Dai","doi":"10.1016/j.apcata.2025.120277","DOIUrl":"10.1016/j.apcata.2025.120277","url":null,"abstract":"<div><div>The major challenges encountered in developing catalysts for volatile organic compound (VOCs) treatments by catalytic oxidation are related to the low-temperature oxidation performance and water resistance. To address these issues, we herein develop an in situ hard-templating method to prepare the Pt or Pd/mesoporous TiO<sub>2</sub>-CeO<sub>2</sub> catalyst and apply it for the oxidation of toluene. It was found that the Pt/mesoporous TiO<sub>2</sub>-CeO<sub>2</sub> catalyst exhibited outstanding catalytic performance and stability under the high humidity (15 vol% H<sub>2</sub>O) condition. Various characterization results revealed that the Pt/meso-TiO<sub>2</sub>-CeO<sub>2</sub> catalyst exhibited excellent catalytic activity: the temperatures at toluene conversions of 50 and 90 % were 195 and 214 °C at a space velocity of 30,000 mL g<sup>−1</sup> h<sup>−1</sup>, with the TOF<sub>Pt</sub> values and specific reaction rates at 160 and 180 °C being 70.34 × 10<sup>−3</sup> and 153.13 × 10<sup>−3</sup> s<sup>−1</sup>, and 1.80 and 3.92 mmol g<sub>Pt</sub><sup>−1</sup> s<sup>−1</sup>, respectively. Such excellent performance of Pt/meso-TiO<sub>2</sub>-CeO<sub>2</sub> was related to its high surface area, abundant oxygen vacancies, high active oxygen species concentration, good low-temperature reducibility, and strong interaction between Pt or Pd and meso-TiO<sub>2</sub>-CeO<sub>2</sub>. The mechanism of toluene oxidation might take place via the following route: Toluene is first oxidized to benzyl alcohol and benzoquinone, then converted to benzaldehyde, benzoic acid, maleic anhydride, and these intermediates are finally oxidized to CO<sub>2</sub> and H<sub>2</sub>O.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"699 ","pages":"Article 120277"},"PeriodicalIF":4.7,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143791100","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

Dual electric fields induced synergistic photocatalytic inactivation: Unveiling mechanisms and phenomena of enhanced performance 双电场诱导协同光催化失活：揭示增强性能的机制和现象

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2025-04-07 DOI: 10.1016/j.apcata.2025.120274

Rui Chen , Na Wang , Yiwen Xie , Yayun Hu , Yuxia Song , Rong Wang

{"title":"Dual electric fields induced synergistic photocatalytic inactivation: Unveiling mechanisms and phenomena of enhanced performance","authors":"Rui Chen , Na Wang , Yiwen Xie , Yayun Hu , Yuxia Song , Rong Wang","doi":"10.1016/j.apcata.2025.120274","DOIUrl":"10.1016/j.apcata.2025.120274","url":null,"abstract":"<div><div>Photocatalytic inactivation, emerging as a novel bactericidal technique, is gaining increasing attention. While oxygen vacancies (OVs) and heterogeneous junction structures have been extensively investigated to enhance photocatalytic performance, the synergistic effect between the two remains largely unexplored. In this study, a Bi<sub>2</sub>S<sub>3</sub>@BiOCl-OV heterojunction structure enriched with oxygen vacancies as a promising photocatalyst was developed. Bi<sub>2</sub>S<sub>3</sub>@BiOCl-OV effectively improved photocatalytic properties due to the presence of oxygen vacancies and the unique structure of Z-type heterojunction. Further mechanism investigation shows that the unique heterojunction structure can induce the formation of internal electric field, the existence of oxygen vacancies can promote the generation of micro local electric field, and effectively promote the charge redistribution under the action of dual-electric field. Simultaneously, O<sub>2</sub> and H<sub>2</sub>O in the system are adsorbed by oxygen vacancies, and are activated by electrons to form the reactive oxygen species, thereby achieving the goal of killing microorganisms.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"699 ","pages":"Article 120274"},"PeriodicalIF":4.7,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143824522","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

Enhanced conversion of cellulose to ethanol and propanol using a mesoporous Pt-WOx/Nb2O5 catalyst 中孔Pt-WOx/Nb2O5催化剂促进纤维素转化为乙醇和丙醇

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2025-04-07 DOI: 10.1016/j.apcata.2025.120275

Daguo Wu , Yong Liu , Xinghua Zhang , Jianguo Liu , Qi Zhang , Longlong Ma , Lungang Chen

引用次数: 0

Surface reaction-induced LaBO3 nano-islands confine dispersed Ni species for highly efficient NH3 decomposition 表面反应诱导的LaBO3纳米岛限制了分散的Ni物种，以实现高效的NH3分解

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2025-04-07 DOI: 10.1016/j.apcata.2025.120276

Zhenwen Yang, Ziyi Shui, Ben Niu, Xiaoxiao Duan, Zheng Wei, Guoxia Jiang, Zhengping Hao

{"title":"Surface reaction-induced LaBO3 nano-islands confine dispersed Ni species for highly efficient NH3 decomposition","authors":"Zhenwen Yang, Ziyi Shui, Ben Niu, Xiaoxiao Duan, Zheng Wei, Guoxia Jiang, Zhengping Hao","doi":"10.1016/j.apcata.2025.120276","DOIUrl":"10.1016/j.apcata.2025.120276","url":null,"abstract":"<div><div>NH<sub>3</sub> decomposition is receiving increased attention for on-site CO<sub>x</sub>-free H<sub>2</sub> generation. Unfortunately, the harsh reaction conditions often cause sintering of active metals. Here we report a simple method to achieve well Ni dispersion by nano-structuring the BN support with La species. The surface reaction-induced LaBO<sub>3</sub> nano-islands on BN support have a strong affinity for Ni atoms, which can capture and confine Ni species to yield a large population of well dispersed Ni clusters and nanoparticles. The Ni species selectively anchored on LaBO<sub>3</sub> islands expose more active sites and boost desorption of N<sub>2</sub> and H<sub>2</sub>, exhibiting superior activity and stability for NH<sub>3</sub> decomposition. In addition, it is revealed that the Ni dispersion is sensitive to the change of the support surface structure. These findings highlight the important role of support structure in determining the nature of the metal phase and provide guidance for designing catalysts with controlled catalytic structure and reactivity.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"699 ","pages":"Article 120276"},"PeriodicalIF":4.7,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808741","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

Visible light-induced photocatalytic degradation of tetracycline based on Cu/CDs/BiVO₄ ternary core-shell composite: DFT calculations and mechanism 基于Cu/CDs/BiVO₄三元核壳复合材料的可见光诱导四环素光催化降解：DFT计算及机理

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2025-04-04 DOI: 10.1016/j.apcata.2025.120256

Xiaodong He , Xinyu Yang , Yafei Li , Jing Yang , Yi Wang , Shihai Cui

{"title":"Visible light-induced photocatalytic degradation of tetracycline based on Cu/CDs/BiVO₄ ternary core-shell composite: DFT calculations and mechanism","authors":"Xiaodong He , Xinyu Yang , Yafei Li , Jing Yang , Yi Wang , Shihai Cui","doi":"10.1016/j.apcata.2025.120256","DOIUrl":"10.1016/j.apcata.2025.120256","url":null,"abstract":"<div><div>The novel Cu/Carbon dots/BiVO<sub>4</sub> ternary core-shell material was prepared by hydrothermal method and applied for the photocatalytic degradation of tetracycline. The CCB-2 composite exhibited the best photocatalytic activity (96.8 %). The ·O<sub>2</sub><sup>-</sup> and h<sup>+</sup> were confirmed the main substances by electron spin response detection. The cycling experiments showed that CCB-2 has outstanding stability and recyclability. Based on calculations, energy band theory and intermediates analysis, the charge transfer pathways in the photocatalytic process were revealed. The photocatalytic mechanism and degradation pathways were elaborated. It was found that the built-in electronic fields were established in the ternary composite and the electrons can easily transfer from inner core Cu to interlayer carbon dots and then to outlayer BiVO<sub>4</sub>. The Cu/Carbon dots/BiVO<sub>4</sub> composite obtained the effective separation of photocatalytic carriers after the irradiation and then showed the excellent performance. This study provided a promising strategy to enhance the application of bismuth-based materials in environmental purification.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"699 ","pages":"Article 120256"},"PeriodicalIF":4.7,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800172","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

Constructing Magnetic Single-Atom Catalysts with High Activity and Stability via an in situ Nitrogen Doping Modulation Strategy for the Hydroformylation of 1-Dodecene 利用原位氮掺杂调制策略构建1-十二烯氢甲酰化高活性和稳定性的磁性单原子催化剂

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2025-04-04 DOI: 10.1016/j.apcata.2025.120264

Lu Cheng, Xingtao Ren, Shiyao Lu, Dameng Gao, Jing Yue

{"title":"Constructing Magnetic Single-Atom Catalysts with High Activity and Stability via an in situ Nitrogen Doping Modulation Strategy for the Hydroformylation of 1-Dodecene","authors":"Lu Cheng, Xingtao Ren, Shiyao Lu, Dameng Gao, Jing Yue","doi":"10.1016/j.apcata.2025.120264","DOIUrl":"10.1016/j.apcata.2025.120264","url":null,"abstract":"<div><div>Regulating the hydroformylation capacity of heterogeneous catalysts is essential for efficiently converting higher olefins into aldehydes. In this study, a magnetic single-atom rhodium-cobalt-based catalyst (RhCo SACs) was synthesised by modifying Fe<sub>3</sub>O<sub>4</sub> with polymerised carbon nitride. Maintaining a constant metal single-atom loading, the catalytic activity in 1-dodecene hydroformylation was modulated by adjusting the type of N species in the support. The distribution of single atoms and valence states was characterised. At the same time, density functional theory (DFT) calculations were conducted to evaluate substrate binding energies and reaction-free energy barriers, providing insights into reaction mechanisms and pathways. The RhCo-pyridinic N configuration lowered the Gibbs free energy of the rate-determining and hydrogenation steps, enhancing substrate reaction activity. Compared to RhCo-graphitic N, RhCo-pyridinic N demonstrated superior performance, achieving a 1-dodecene conversion rate of 98.3% and aldehyde selectivity of 98.6%. Furthermore, the catalyst was magnetically recovered without loss of activity or mass and maintained stable performance over 10 reuse cycles. These findings present a novel and efficient strategy for the precise design of magnetic single-atom catalysts with potential practical applications in the hydroformylation of high-carbon olefins.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"699 ","pages":"Article 120264"},"PeriodicalIF":4.7,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808737","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

Revealing the inhibitory reduction effect of Zr species on CoO to enhance the stability for furfural hydrogenolysis to 2-methylfuran 揭示了Zr对CoO的抑制还原作用，增强了糠醛氢解制2-甲基呋喃的稳定性

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2025-04-04 DOI: 10.1016/j.apcata.2025.120267

Jun He , Shuang Xiang , Xiaohui Liu , Yanqin Wang

{"title":"Revealing the inhibitory reduction effect of Zr species on CoO to enhance the stability for furfural hydrogenolysis to 2-methylfuran","authors":"Jun He , Shuang Xiang , Xiaohui Liu , Yanqin Wang","doi":"10.1016/j.apcata.2025.120267","DOIUrl":"10.1016/j.apcata.2025.120267","url":null,"abstract":"<div><div>High selective hydrogenolysis of furfural to 2-methylfuran over a metal oxide-based catalyst is promising and challenging. In this paper, a Zr-modified CoO<sub>x</sub> (Zr<sub>1</sub>Co<sub>6</sub>-325) catalyst was prepared via a simple co-precipitation/reduction and exhibited superior initial activity and remarkable circular stability during the hydrogenolysis of furfural (FUR) to 2-methylfuran (2-MF). As high as 71.2 % yield of 2-MF was achieved at 170 °C for 2 h and nearly no deactivation was found after five cycles, much better than those of reduced Co<sub>3</sub>O<sub>4</sub> catalyst (Co<sub>3</sub>O<sub>4</sub>-250). Comprehensive studies demonstrated that the over-reduction of the CoO species during the reaction process was the main cause of catalyst deactivation. The introduction of Zr species, on the one hand, inhibited the over-reduction of CoO species during reaction processes, thereby enhancing the circular stability. On the other hand, the introduction of Zr species promoted the activation and dissociation of H<sub>2</sub> and therefore improved the activity. This research unveiled the stabilizing effect of Zr species on CoO, providing guidance for the design of high-stable CoO-based catalysts.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"699 ","pages":"Article 120267"},"PeriodicalIF":4.7,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783881","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

Efficient immobilization of sulfonic acid groups in the backbone of aluminoborate-based molecular sieve for the expeditious synthesis of 14-aryl-14H-dibenzo[a,j]xanthene and α-aminonitrile derivatives under solvent-free conditions 无溶剂条件下，硼酸铝分子筛骨架上磺酸基的高效固定化快速合成14-芳基- 14h -二苯并[a，j]杂蒽和α-氨基腈衍生物

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2025-04-04 DOI: 10.1016/j.apcata.2025.120268

Yurong Sun , Shixiang Hu , Yao Yang , Wenliang Gao , Tao Yang

{"title":"Efficient immobilization of sulfonic acid groups in the backbone of aluminoborate-based molecular sieve for the expeditious synthesis of 14-aryl-14H-dibenzo[a,j]xanthene and α-aminonitrile derivatives under solvent-free conditions","authors":"Yurong Sun , Shixiang Hu , Yao Yang , Wenliang Gao , Tao Yang","doi":"10.1016/j.apcata.2025.120268","DOIUrl":"10.1016/j.apcata.2025.120268","url":null,"abstract":"<div><div>Solid acid materials functionalized by sulfonic acid groups (–SO<sub>3</sub>H) is receiving a great deal of attention recently because of the effective substitute for conventional liquid mineral acids. In this work, the controllable –SO<sub>3</sub>H acidic sites were successfully immobilized in the backbone of aluminoborate-based molecular sieve (PKU1), which were well-confirmed by some physicochemical characterizations. Under solvent-free reaction condition, the as-prepared PKU1-SO<sub>3</sub>H solid acids exhibit both high activity and chemical stability for the expeditious synthesis of 14-aryl-14H-dibenzo[<em>a</em>,<em>j</em>]xanthenes and α-aminonitrile derivatives. Eight new crystal structure have been found and were also determined with single crystal X-ray diffraction method. A plausible reaction mechanism was proposed to interpret the key role of –SO<sub>3</sub>H active sites on the catalytic synthesis of 14-phenyl-14H-dibenzo[<em>a</em>,<em>j</em>]xanthene derivatives. This work provides an available candidate in the environmentally benign catalysis and a helpful understanding on the reaction mechanism using solid acid catalyst for selective synthesis of some value-added compounds.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"699 ","pages":"Article 120268"},"PeriodicalIF":4.7,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143791101","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

Comparative study of the catalytic effects of Al(CH3COO)₃ and Al₂(SO₄)₃ on heavy oil aquathermolysis in CO2 and N2 atmospheres Al（CH3COO）₃和Al₂（SO₄）₃在CO2和N2气氛下催化重油水热裂解效果的比较研究

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2025-04-04 DOI: 10.1016/j.apcata.2025.120247

Yasser I.I. Abdelsalam , Lilia Kh. Galiakhmetova , Andrey V. Sharifullin , Arash Tajik , Rezeda E. Mukhamatdinova , Rustam R. Davletshin , Alexey V. Vakhin

{"title":"Comparative study of the catalytic effects of Al(CH3COO)₃ and Al₂(SO₄)₃ on heavy oil aquathermolysis in CO2 and N2 atmospheres","authors":"Yasser I.I. Abdelsalam , Lilia Kh. Galiakhmetova , Andrey V. Sharifullin , Arash Tajik , Rezeda E. Mukhamatdinova , Rustam R. Davletshin , Alexey V. Vakhin","doi":"10.1016/j.apcata.2025.120247","DOIUrl":"10.1016/j.apcata.2025.120247","url":null,"abstract":"<div><div>Water-soluble catalysts play a key role in the development of heavy oil extraction technologies. In this study, two types of catalysts were synthesized and characterized: Al(CH<sub>3</sub>COO)<sub>3</sub> and Al<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub>. Their catalytic efficiency was evaluated during the processing of heavy oil using aquathermolysis under atmospheric conditions of CO<sub>2</sub> and N<sub>2</sub> at 300 °C for 24h. Experimental results confirmed that in the presence of CO<sub>2</sub>, significant interaction occurs with Al<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub>, which contributes to the modification of the catalyst's active sites and, as a consequence, increases its catalytic activity in various reactions such as dehydrogenation, hydrogenation, and breaking C-heteroatom bonds. This, in turn, leads to an 80% reduction in viscosity, as well as a 31% decrease in sulfur content, a 45.8% reduction in resins, and a 30.8% decrease in asphaltenes in oil samples compared to the heavy oil. These significant improvements in heavy oil processing highlight the importance of using water-soluble aluminum catalysts in aquathermolysis, opening new prospects for the development of more efficient hydrocarbon processing technologies.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"699 ","pages":"Article 120247"},"PeriodicalIF":4.7,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808738","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

Efficient pesticide degradation through peroxydisulfate activation by magnetic Fe3S4 nanoparticle hydrogel composites: Unveiling the pivotal role of electron transfer mechanisms 磁性Fe3S4纳米颗粒水凝胶复合材料通过过硫酸盐活化有效降解农药：揭示电子转移机制的关键作用

IF 4.7 2区化学

Applied Catalysis A: General Pub Date : 2025-04-02 DOI: 10.1016/j.apcata.2025.120255

Qiaojuan Kong , Yuansheng Wang , Jiaqu Tan , Siyu Long , Jiayi Li , Zhongqiu Zhao , Yulong Zhang , Yongtao Li , Xueming Lin

{"title":"Efficient pesticide degradation through peroxydisulfate activation by magnetic Fe3S4 nanoparticle hydrogel composites: Unveiling the pivotal role of electron transfer mechanisms","authors":"Qiaojuan Kong , Yuansheng Wang , Jiaqu Tan , Siyu Long , Jiayi Li , Zhongqiu Zhao , Yulong Zhang , Yongtao Li , Xueming Lin","doi":"10.1016/j.apcata.2025.120255","DOIUrl":"10.1016/j.apcata.2025.120255","url":null,"abstract":"<div><div>In this study, a magnetic Fe<sub>3</sub>S<sub>4</sub> lignin hydrogel (FSLH) catalyst was synthesized to activate peroxydisulfate (PDS) for the degradation of isoproturon (IPU). The composite material not only exhibited high efficiency in degrading IPU but also effectively decomposed various neonicotinoid insecticides. Experimental results indicated that the FSLH/PDS system degraded IPU via an electron transfer pathway (ETP), wherein the <img>Fe(Ⅲ)−OS<sub>2</sub>O<sub>7</sub><sup>−</sup> complex, formed by FSLH and PDS, captured electrons from IPU, facilitating efficient degradation and generating Fe(IV). All reactive oxygen species (ROS), including SO<sub>4</sub>•<sup>−</sup>, •OH, <sup>1</sup>O<sub>2</sub>, and O<sub>2</sub><sup>•−</sup>, as well as Fe(IV), contributed to IPU degradation, with ETP playing a dominant role. In real water matrices, increasing the [FSLH/PDS] dosage significantly enhanced IPU degradation efficiency, and the FSLH/PDS system remained highly effective in the presence of various inorganic anions and humic acid. Ultimately, IPU was oxidized into low-toxicity products, substantially reducing ecological risks. This study elucidates the non-radical reaction mechanism, providing a theoretical basis for the application of hydrogel composite nanocatalysts in pesticide wastewater treatment.</div></div>","PeriodicalId":243,"journal":{"name":"Applied Catalysis A: General","volume":"699 ","pages":"Article 120255"},"PeriodicalIF":4.7,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143815453","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