Catalysis Letters最新文献

{"title":"Velvet-Ball-Like S-Scheme FeOOH/ZnMn2O4 Heterojunction for Degradation of Tetracycline Under Visible-Light Irradiation","authors":"Guangling Zuo,&nbsp;Hongyong Ye,&nbsp;Luyao Zhao,&nbsp;Jinping Lai,&nbsp;Jia Du,&nbsp;Xin Ding","doi":"10.1007/s10562-025-05051-3","DOIUrl":"10.1007/s10562-025-05051-3","url":null,"abstract":"<div><p>To address the issues of high electron-hole pair recombination rate and low quantum efficiency in the ZnMn₂O₄ (ZMO) photocatalyst, an S-scheme FeOOH/ZnMn₂O₄ (FOH/ZMO) heterojunction composite was constructed by loading FeOOH (FOH) onto ZMO using an impregnation method. The microstructure, optoelectronic properties, and crystal structure of FOH/ZMO were systematically characterized using various characterization methods. The photocatalytic activity of FOH/ZMO was investigated by degrading tetracycline hydrochloride (TC) in simulated wastewater. Characterization results revealed that the FOH/ZMO composite material retained the tetragonal spinel structure of ZMO and formed a unique “velvet-ball-like” morphology. Moreover, FOH was uniformly and closely loaded on the surface of ZMO, and an S-scheme heterojunction structure was successfully constructed at the interface between the two materials. Through the synergistic effects of optimizing the interfacial charge transfer path, retaining highly active redox sites, and promoting the directional separation of carriers, this heterojunction significantly enhanced the photocatalytic activity of FOH/ZMO. Quenching experiments further confirmed that superoxide radicals (·O₂⁻) and hydroxyl radicals (·OH) were the primary reactive species in the degradation process. During the degradation performance tests, FOH/ZMO demonstrated outstanding visible-light catalytic activity. The optimal performance was achieved with 6 wt% FOH loading in FOH/ZMO under conditions of 0.6 g/L catalyst dosage, 20 mg/L initial TC concentration, and pH 7, reaching a degradation efficiency of 98.29% after 100 min of visible-light irradiation. Notably, the catalyst demonstrated excellent magnetic separability. After 4 cycles of use, the catalyst could still maintain a degradation efficiency of 93.79%, demonstrating sound stability. This study not only proposes a novel strategy for designing ZMO-based photocatalysts but also provides valuable insights into the development and practical applications of S-scheme heterojunction materials.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bi2WO6 Nanosheets Decorated with ZnO Nanorods in 3D Hierarchical Heterostructures: Surfactant-Free Synthesis for Enhanced Visible-Light-Driven Photocatalytic Degradation","authors":"Hui Sun,&nbsp;Jingqi Jia,&nbsp;Bingge Chen,&nbsp;Gaoyang Liang,&nbsp;Hui Yu,&nbsp;Hongxia Jing","doi":"10.1007/s10562-025-05044-2","DOIUrl":"10.1007/s10562-025-05044-2","url":null,"abstract":"<div><p>Aiming to develop efficient photocatalysts with targeted charge transfer pathways, ZnO/Bi₂WO₆ Z-scheme heterojunctions were synthesized via a one-step surfactant-free hydrothermal method. The optimized composite (ZnO:Bi₂WO₆ = 0.3:1) exhibits a 3D hierarchical structure comprising ZnO rods anchoring on Bi₂WO₆, nanosheets, leading to a high surface area (48.2 m²/g) and abundant surface oxygen vacancies, This unique configuration drives a hole-dominated Z-scheme charge transfer mechanism, where photogenerated holes directly oxidize tetracycline (TC) without relying on secondary radical mediation, achieving 98.1% TC degradation within 90 min (rate constant k = 0.04278 min^–1, 2.9 times the rate of pure Bi₂WO₆). The composite also degrades Rhodamine B (RhB) (97.3%) and Methylene blue (MB) (95.1%) effectively, demonstrating versatile pollutant removal capability, the enhanced charge separation was confirmed by a photocurrent density 10 times higher than that of pure Bi₂WO₆, and the efficiency remained at 89% after four cycles. And it has the advantage of scalable synthesis. This work provides new insights into designing direct Z-scheme systems for practical environmental remediation.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of Dimethyl Carbonate by Transesterification of Methanol with Propylene Carbonate Catalyzed by Choline-Based Amino Acid Ionic Liquids","authors":"Hao Liu,&nbsp;Shiyu Liu,&nbsp;Weihua Shen,&nbsp;Yunjin Fang","doi":"10.1007/s10562-025-05039-z","DOIUrl":"10.1007/s10562-025-05039-z","url":null,"abstract":"<div><p>In this study, we developed a series of choline-based amino acid ionic liquids ([Cho][AA]-ILs) using three alkaline amino acids and choline as environmentally friendly catalysts for synthesizing dimethyl carbonate through transesterification of propylene carbonate with methanol. Through systematic screening, choline arginine ([Cho][Arg]) demonstrated superior catalytic performance and was selected for further optimization. A response surface methodology (RSM) with Box-Behnken design (BBD) was employed to systematically investigate the synergistic effects of key reaction parameters: catalyst concentration (3.6 wt%), reaction time (2.3 h), and temperature (79.4 °C) at a methanol to propylene carbonate molar ratio of 12:1. Under these optimized conditions, the system achieved 71.2% propylene carbonate conversion efficiency under atmospheric reflux. Notably, the catalyst exhibited remarkable recyclability, maintaining approximately 40% conversion efficiency after 12 reaction cycles. Experiments and characterizations revealed that the decomposition of guanidine groups on the arginine side chain caused by high temperature was the main reason for the deactivation of the catalyst. The [Cho][Arg] catalyst distinguishes itself through its facile single-step synthesis, low environmental toxicity, and cost-effective raw materials, demonstrating significant potential for sustainable industrial applications in carbonate ester production.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Synergistic Action of Co, Cu and Ce Was Used to Achieve Efficient Aerobic Epoxidation of Styrene","authors":"Tong Li,&nbsp;Fuliang Liu,&nbsp;Xiaofang Wang,&nbsp;Zhaohao Han,&nbsp;Xiaoqiong Jia,&nbsp;Ping Wang,&nbsp;Qingyan Chu,&nbsp;Yuxuan Sheng","doi":"10.1007/s10562-025-05061-1","DOIUrl":"10.1007/s10562-025-05061-1","url":null,"abstract":"<div><p>The precise embedding of metal species within specific sites of zeolite frameworks and their unique microenvironments exert fascinating influences on catalytic performance. Herein, we report the rational design of a highly efficient Co-Cu@CTS-1 catalyst through the strategic incorporation of Co, Cu, and Ce into TS-1 zeolite, where Ce is doped at silicon atomic sites while Co and Cu are encapsulated within the zeolite cages. Mechanistic investigations reveal that the synergistic interplay among Co, Cu, and Ce is pivotal for catalytic activity: Co facilitates molecular oxygen activation to generate reactive oxygen species (O⁻), while Ce(III) enhances oxygen vacancy concentration, significantly boosting styrene conversion. Moreover, the distinctive electronic interaction between Ce and Cu markedly improves the selectivity toward styrene oxide. The optimized Co-Cu@CTS-1 catalyst exhibits exceptional performance in the aerobic epoxidation of styrene, achieving a remarkable conversion of 78.11% with 87.31% epoxide selectivity under mild conditions (80 °C, 2 h). Furthermore, the catalyst demonstrates outstanding stability, retaining 68.21% conversion even after 20 reaction cycles, underscoring its superior resistance to metal sintering and long-term durability. This work provides valuable insights into the rational design of multifunctional zeolite catalysts through precise metal positioning and microenvironment modulation.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation of Size-Selected Pt Cluster Catalysts for Hydrogenation of Styrene","authors":"Sichen Tang,&nbsp;Zixiang Zhao,&nbsp;Yongxin Zhang,&nbsp;Ximing Lu,&nbsp;Kuo-juei Hu,&nbsp;Fengqi Song","doi":"10.1007/s10562-025-05043-3","DOIUrl":"10.1007/s10562-025-05043-3","url":null,"abstract":"<div><p>The synthesis of atomically precise cluster catalysts has emerged as a central theme in this field, as it represents an effective approach to uncover the origins of catalytic reactivity. In this study, we have prepared supported Pt_N cluster catalysts (<i>N</i> = 1,2,3,923 ± 30) on mesoporous graphitic carbon nitride (mpg-C₃N₄) using a magnetron sputtering cluster beam source. Electron microscopy characterization confirms that the Pt_N catalysts exhibit uniform size and excellent dispersion. X-ray photoelectron spectroscopy (XPS) measurements reveal no significant ionic signals, suggesting a low oxidation state of the catalysts. Pt₂ and Pt₃ demonstrate superior activity in the hydrogenation of styrene. Our work holds significant potential for advancing the production of high-performance catalysts.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic Removal of NO and Chlorobenzene on CeO2 Catalyst in a Dielectric Barrier Discharge Reactor at Low Temperature","authors":"Ran Sun,&nbsp;Kunge Hou,&nbsp;Xingpeng Jin,&nbsp;Lihui Yang,&nbsp;Lijie Song,&nbsp;Chuang Ouyang,&nbsp;Jianyuan Hou,&nbsp;Yuan Yuan,&nbsp;Xingang Liu,&nbsp;Renxi Zhang","doi":"10.1007/s10562-025-05041-5","DOIUrl":"10.1007/s10562-025-05041-5","url":null,"abstract":"<div><p>The development of new technologies for removal of NO and chlorobenzene in complex flue gas situations at low temperature is a complex and demanding task. Here, the synergistic removal of NO and chlorobenzene was achieved through catalysis assisted dielectric barrier discharge (DBD) mechanism under different conditions. The experimental results suggested that the increase of specific energy density (SED) and the loading of CeO₂ strengthened the treatment of NO and chlorobenzene. A higher degradation efficiency of NO and a lower production rate of NO₂ were achieved after the introduction of chlorobenzene. The removal of chlorobenzene could also be benefited from this process, and the introduction of NO promoted CO₂ selectivity of chlorobenzene. The XPS and H₂-TPR analyses confirmed that the reaction between chlorobenzene and NO occurred by the assistance of Ce³⁺/Ce⁴⁺ redox cycle as well as the consumption and regeneration of chemically adsorbed oxygen. During the reaction, the oxygen vacancies (OVs) caused by plasma etching promote the redox cycle and alleviate the catalyst poisoning caused by chloride ions (Cl⁻). Furthermore, a comprehensive analysis of the resulting byproducts revealed phenol as the most significant intermediate in chlorobenzene degradation, while acetaldehyde emerged as the major product resulting from ring-opening processes of chlorobenzene. Utilizing chlorobenzene from flue gas subtly, this method presents a more sustainable alternative for NO reduction, showing promise for addressing industrial emission challenges.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144073623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimized Hydrothermal Synthesis of Highly Crystalline Sheet-Like BiOCl Powders for Enhanced Photocatalytic Degradation of Organic Pollutants","authors":"Pusit Pookmanee,&nbsp;Kanjanaporn Narong,&nbsp;Supaporn Sangsrichan,&nbsp;Jiraporn Kitikul,&nbsp;Manoch Thanomwat,&nbsp;Pornthep Chaiwoot,&nbsp;Viruntachar Kruefu,&nbsp;Surasak Kuimalee,&nbsp;Nattapol Laorodphan,&nbsp;Putthadee Ubolsook,&nbsp;Pongthep Jansanthea","doi":"10.1007/s10562-025-05052-2","DOIUrl":"10.1007/s10562-025-05052-2","url":null,"abstract":"<div><p>Bismuth oxychloride (BiOCl) powders, known for their layered structure and photocatalytic properties, were synthesized via an optimized hydrothermal method to improve environmental remediation efficiency. The synthesis involved reacting bismuth nitrate and sodium chloride in an aqueous solution, followed by hydrothermal treatment at 100 °C or 200 °C for varying durations (2, 4, and 6 h), and subsequent drying of the precipitated BiOCl powders. Structural and morphological properties were investigated using XRD, SEM, BET, EDS, FTIR, and UV–DRS. BiOCl synthesized at 200 °C for 4 h (BiOCl-200-4) showed the highest crystallinity and sheet-like morphology, enhancing charge separation and light absorption. BiOCl-200-4 demonstrated excellent photocatalytic activity under UV light, achieving 99.90% degradation of methyl orange (MO) with a rate constant of 0.0290 min⁻¹ under optimal conditions (2.5 mg/L MO, 0.6 g/L catalyst dosage, pH 3). Scavenger tests confirmed photogenerated holes and hydroxyl radicals as primary reactive species. BiOCl-200-4 also retained 90.28% of its activity after five cycles, indicating good stability. Unlike previous studies, this work systematically optimizes synthesis parameters to control crystallinity, morphology, and facet exposure, achieving a dominant (001) orientation that improves photocatalytic efficiency. The study also demonstrates a high-yield (94.73%) and scalable synthesis route, offering practical advantages over conventional approaches. These findings provide new insights into structure–function relationships and position BiOCl as a promising, sustainable photocatalyst for wastewater treatment.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing Photocatalytic Water Splitting for H2 Production Over Znln2S4 Photocatalysts by Forming Heterostructure","authors":"Nasim Mia,&nbsp;Yulin Hu","doi":"10.1007/s10562-025-05045-1","DOIUrl":"10.1007/s10562-025-05045-1","url":null,"abstract":"<div><p>Using solar energy for H₂ production by photocatalytic water splitting is considered a green approach to replace heavily polluted steam methane reforming. Upon certain modification, Znln₂S₄ (ZIS) has been considered as a promising candidate for H₂ production via water splitting. In this study, non-metal doping and the formation of heterostructure were applied to synthesize Mo₂C (MC)/ZIS heterosystem and N-ZIS. Their H₂ evolution via water splitting was compared with TiO₂. After determining the optimal photocatalyst, both generations of total gases and individual gases (i.e., H₂ and CO₂) were maximized by studying different reaction conditions (i.e., photocatalyst concentration and type and dosage of sacrificial agent). Finally, the stability of the best photocatalyst at the optimal H₂ production conditions was investigated. Results show that the MC/ZIS was identified as the best photocatalyst. The optimal reaction conditions were determined to be: photocatalyst concentration of 0.015 wt%, methanol as the sacrificial agent, 20 vol% methanol dosage for 2 h reaction time, producing the highest evolution of total gases of 22,024 µmol/g_catalyst. It was also observed that the highest amount of H₂ evolution was obtained at 990 µmol/g_catalyst at 0.104 wt% concentration of photocatalyst and using 20 vol% methanol as a sacrificial agent for 2 h. For the stability of MC/ZIS, there were no considerable changes in the first two cycles. However, the amount of H₂ evolution was reduced by 26.78% after 3rd cycle. Overall, this study provides new insights into H₂ production via photocatalytic water splitting can be enhanced by forming a heterojunction system.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Untangling Antibacterial and Dye Removal Potential of Wolframite-Type Zinc Molybdate Nanostructures","authors":"Divya Thakur,&nbsp;Maheshwar Singh Thakur,&nbsp;Ravi Kant Bhatia,&nbsp;Manish Kumar","doi":"10.1007/s10562-025-05050-4","DOIUrl":"10.1007/s10562-025-05050-4","url":null,"abstract":"<div><p>A green and convenient combustion method was utilized to synthesize wolframite-type zinc molybdate (ZnMoO₄) nanostructures. The crystalline characteristics of the nanostructures were confirmed by XRD and SAED, revealing the presence of an anorthic phase. Elemental composition and oxidation states were analyzed using XPS and EDS. TEM determined the average particle sizes to be 17.06 nm for ZnMoO₄ and 17.40 nm for G-ZnMoO₄ nanostructures. These nanostructures were then evaluated for their photocatalytic performance against UV-protected industrial Novacron brown dye, achieving degradation efficiencies of 82.98% for ZnMoO₄ and 94.31% for G-ZnMoO₄ within 120 min. Additionally, the preferable broad-spectrum antibacterial activities of these nanostructures against three human pathogenic bacterial strains were investigated.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Immobilized Catalase on Onion Inner Epidermis for Enhanced Stability and Reusability in Biocatalysis","authors":"Sinem Öztürk,&nbsp;Ceyhun Işık,&nbsp;Mustafa Teke","doi":"10.1007/s10562-025-05054-0","DOIUrl":"10.1007/s10562-025-05054-0","url":null,"abstract":"<div><p>Catalase (CAT) is a critical antioxidant enzyme widely used in industrial and agricultural applications due to its ability to decompose hydrogen peroxide (H₂O₂) into water and oxygen. However, its practical use is often hindered by issues such as low stability and reusability. In this study, CAT was effectively immobilized onto the onion inner epidermis (OIE) via adsorption and cross-linking techniques, aiming to improve its catalytic activity, stability and reusability. The optimization of the immobilization process was carried out by evaluating key factors, including CAT concentration, OIE quantity, adsorption duration, and cross-linker concentration. The immobilized CAT exhibited a significant improvement in thermal stability, retaining 50% activity at 60 °C compared to 30% for the free enzyme. Similarly, it displayed enhanced pH stability, maintaining 70% activity at pH 5.5 and pH 8.5, while the free enzyme retained only 50% and 60%, respectively. Kinetic studies revealed a higher V_max (2.26 × 10⁻⁴ µmol H₂O₂/min) and lower K_m (3.36 mM) for the immobilized enzyme, indicating improved catalytic efficiency and substrate affinity. The immobilized enzyme preserved 40% of its activity after 28 consecutive uses and retained 30% activity following 30 days of storage, demonstrating its long-term stability. This study demonstrates that immobilized CAT on OIE is a promising biocatalyst for agricultural and food industries, where it can be utilized for H₂O₂ detoxification, food preservation, and wastewater treatment. The use of OIE as a low-cost, natural carrier further supports the development of sustainable and eco-friendly biocatalytic systems for industrial applications.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 6","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144074156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}