Journal of Environmental Chemical Engineering最新文献

{"title":"Advancing water treatment and reuse technologies to address the nexus of climate change, water scarcity, and pharmaceutical contamination","authors":"Maryam Mallek ,&nbsp;Damia Barcelo","doi":"10.1016/j.jece.2025.119284","DOIUrl":"10.1016/j.jece.2025.119284","url":null,"abstract":"<div><div>Climate change is intensifying water scarcity, degrading water quality, and increasing the persistence of emerging contaminants (ECs) such as pharmaceuticals, antibiotics, and antibiotic resistance genes (ARGs). These converging stressors threaten ecosystem stability and water security, particularly in semi-arid regions such as the Mediterranean. This review critically examines the intersection of climate change, water scarcity, and pharmaceutical pollution, and evaluates advanced treatment and reuse technologies to support climate-resilient water management. High-performance systems such as membrane bioreactors (MBRs), nanofiltration (NF), reverse osmosis (RO), and anaerobic MBRs (AnMBRs) achieve 70–99 % removal of pharmaceuticals and ARGs<strong>,</strong> with EC–RO hybrids reaching 97–99 % COD, TSS, and BOD removal. However, these technologies remain inherently limited by fouling, brine disposal, and energy costs. Peroxymonosulfate (PMS)-based advanced oxidation processes (AOPs) and hybrid systems deliver 83–99.9 % removal of recalcitrant pharmaceuticals and up to 94.5 % ARG reduction, though scaling and by-product management remain barriers. Nature-based solutions, including hybrid constructed wetlands (15–&gt;99 % removal) and biochar-enhanced systems (40–210 mg/g adsorption; up to 95 % removal), provide sustainable but land-intensive alternatives. Decentralized approaches such as microbial fuel cells (MFCs) (85–99 % removal), biosorbents, and green nanomaterials (64–95 % removal) demonstrate strong potential for low-energy reuse in resource-limited settings. Aligning these technologies within circular water strategies supported by pilot programs, adaptation finance, life-cycle assessments, and inclusive governance is essential to ensure water quality, availability, and resilience under climate pressures.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119284"},"PeriodicalIF":7.2,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design of bifunctional resin-microbe complex guided by density functional theory and machine learning for enhanced phenol degradation and Cr (VI) reduction","authors":"Yan Hai,&nbsp;Qiyao Cong,&nbsp;Yingnan Pang,&nbsp;Yunxing Zhao,&nbsp;Weilun Yan,&nbsp;Jianfeng Zhang,&nbsp;Jing Liang","doi":"10.1016/j.jece.2025.119308","DOIUrl":"10.1016/j.jece.2025.119308","url":null,"abstract":"<div><div>Hexavalent chromium and phenol coexist in wastewater and exhibit synergistic toxicity, enhancing biological harmful effects. The integration of Density Functional Theory (DFT) and Machine Learning (ML) offers a promising approach to addressing complex environmental challenges, through bridging macroscopic and microscopic regular analysis. DFT simulations revealed that the tertiary amine (-N(CH₃)₂) and quaternary ammonium (-N⁺(CH₃)₃) groups on D301, carrying positive charges, can assemble phenol-degrading microorganisms through electrostatic interactions. HOMO/LUMO energy and the Fukui function revealed a low energy gap of 0.128 Ha between D301 and Cr(VI), suggesting the potential for spontaneous Cr(VI) reduction by D301. experiments demonstrated that the resin–microorganism composite material could degrade 1500 mg/L of phenol and reduce 20 mg/L of Cr(VI), which is higher than most of the currently reported co-removal levels. Using Bayesian regression, a synergistic metabolic model is established to predict the removal performance. The resin-microbe system can remove 34–36 % of 1800 mg/L phenol under 20 mg/L Cr(VI), with a prediction error of less than 5 %. This study, through DFT and integrated ML, revealed the active sites of the resin and constructed a co-metabolism model of phenol and Cr(VI), providing a new strategy for material design and microbial assembly in the removal of co-contaminants.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119308"},"PeriodicalIF":7.2,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review on electrospinning of recycled polymer-derived fibers: A road towards sustainability, production and applications","authors":"Haleh Naeim,&nbsp;Faezeh Mahdavian,&nbsp;Denis Rodrigue","doi":"10.1016/j.jece.2025.119283","DOIUrl":"10.1016/j.jece.2025.119283","url":null,"abstract":"<div><div>In recent decades, the substantial growth in the production of non-biodegradable plastics led to a striking increase in environmental pollution. Conventional methods to manage these wastes, such as landfilling, incineration or physical recycling, are in many cases not only inefficient, but also costly and environmentally damaging. In these cases, the need for innovative and sustainable methods to reduce and reuse plastics waste is mandatory. One of the new and efficient approaches is the use of electrospinning and similar technology to directly convert plastics waste into thin fibers as an upcycling method. This process allows the production of micro- and nano-scale fibers from recycled polymers. These fibers can then be used in various applications, such as filtration, medicine, packaging and advanced engineering materials and composites (as reinforcements). This is related to their interesting properties, such as high contact surface area, tunable porosity and good strength depending on the original polymer. In this review, potential applications for this technology are presented in using polymer wastes and to describe its role as a sustainable solution in reducing the negative impacts of plastics on the environment. The scientific basis and functional advantages of this method are described first and experimental studies conducted in the field of electrospinning of recycled polymers are reviewed next. Finally, some conclusions are reported with openings for future developments.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119283"},"PeriodicalIF":7.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing water quality monitoring networks through temporal and spatial analysis","authors":"Long Wang ,&nbsp;Paike Ma ,&nbsp;Juncai Huang ,&nbsp;Wenle Chen ,&nbsp;Wei Liu ,&nbsp;Rongli Li ,&nbsp;Zhenyu Zhang","doi":"10.1016/j.jece.2025.119311","DOIUrl":"10.1016/j.jece.2025.119311","url":null,"abstract":"<div><div>Efficient design of water quality monitoring networks is vital for improving watershed-scale pollution control, particularly in rapidly urbanizing river basins. This study aims to establish a spatiotemporal optimization framework that integrates autocorrelation analysis, local spatial clustering (Local Moran’s I), K-means clustering, and random forest interpretation. Monthly water quality data from 65 stations in the Tanjiang River Basin (southern China) during 2018–2024 were used to evaluate temporal persistence and spatial aggregation of 12 key parameters. Temporal autocorrelation analysis revealed strong annual periodicities for nitrate nitrogen (NO₃⁻-N), water temperature (WT), chloride (Cl⁻), and sulfate (SO₄²⁻), suggesting their suitability as indicators for long-term trend detection. Spatial analysis identified significant local clusters of NO₃⁻-N, SO₄²⁻, fluoride (F⁻), and ammonia nitrogen (NH₃-N), reflecting pollution hotspots tied to anthropogenic land use. Based on these spatiotemporal patterns, K-means clustering stratified stations into three categories—“Add”, “Keep”, and “Merge”. A random forest model was then applied to evaluate the relative importance of each parameter, identifying Cl⁻, NO₃⁻-N, and SO₄²⁻ as the most influential variables. The model also showed high classification consistency with the K-means result (95.0 % accuracy), indicating strong agreement between unsupervised grouping and feature-driven interpretation. This integrated method supports strategic adjustment of monitoring networks by reducing redundancy while retaining representativeness. It offers a scalable solution for data-driven environmental governance, especially under resource constraints. Future work should incorporate real-time data, cost-efficiency evaluation, and adaptive scheduling to further enhance network responsiveness.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119311"},"PeriodicalIF":7.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization of buffer adjustment strategies for enhancing stability and hydrogen yield in high solid-phase biohydrogen production systems","authors":"Yameng Li ,&nbsp;Hang Yan ,&nbsp;Quanguo Zhang ,&nbsp;Yinggang Jiao ,&nbsp;Xudong Yang ,&nbsp;Fuke Ai ,&nbsp;Guihong Yin ,&nbsp;Junyu Tao ,&nbsp;Yanyan Jing ,&nbsp;Bing Hu ,&nbsp;Zhiping Zhang","doi":"10.1016/j.jece.2025.119304","DOIUrl":"10.1016/j.jece.2025.119304","url":null,"abstract":"<div><div>The transition towards low-carbon energy has intensified research on via photo fermentation biohydrogen production (PFHP), particularly using agricultural waste. However, high solid-phase PFHP (TS≥10 %) remains underexplored despite its advantages of lower operational costs and energy consumption compared to low solid-phase systems. This study addresses the critical challenge of rapid acidification in high solid-phase PFHP by evaluating phosphate, carbonate, and citrate buffer systems at varying initial pH levels (6–9) using corn straw as substrate. Results demonstrated that phosphate buffer at pH 7 optimally stabilized the fermentation system, maintaining pH within 5.5–6.5 and achieving the highest cumulative hydrogen yield (1317.56 ± 17.25 mL, 68.85 mL H₂/g TS) and peak nitrogenase activity (1425 ± 65 nmol C₂H₄/h). Kinetic analysis via the Gompertz model (R² &gt; 0.99) confirmed the system’s efficiency, with a maximum hydrogen production rate of 25.15 mL/h at 20.08 h. Phosphate buffer also enhanced light energy conversion efficiency (12.58 % at 12–24 h) and mitigated volatile fatty acid accumulation. In contrast, carbonate and citrate buffers showed lower performance, with yields of 794.62 ± 19.21 mL and 1017.56 ± 18.25 mL, respectively. The study identifies 84 h as the optimal fermentation duration to balance productivity and energy efficiency. These findings provide novel insights into buffer-mediated pH regulation for scalable high solid-phase PFHP, emphasizing phosphate buffer’s role in optimizing biohydrogen production from lignocellulosic biomass.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119304"},"PeriodicalIF":7.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strategies for large-scale preparation of carbon dots and their roles in photocatalytic CO2 reduction: A review","authors":"Shujuan Zhang,&nbsp;Xun Gong,&nbsp;Luqiu Lin,&nbsp;Zijian Zhou,&nbsp;Minghou Xu","doi":"10.1016/j.jece.2025.119328","DOIUrl":"10.1016/j.jece.2025.119328","url":null,"abstract":"<div><div>As the particular zero-dimensional carbon nanomaterial, carbon dots(CDs) have attracted great attention in the field of photocatalysis due to their advantages such as efficient utilization of visible light, rapid transport of charge carriers, and adjustable energy level configuration. This paper classifies large-scale synthesis methods into solid-phase, liquid-phase and gas-phase production based on the different states of the reaction medium, and innovatively analyzes their economy. These CDs are generally without post-treatment, and their photocatalytic performance is not satisfactory. Heteroatom doping and surface modification are utilized to adjust the photocatalytic properties of CDs. The former changes the internal structure and optical properties, while the latter mainly enhances the stability. Although the two means have outstandingly improved the catalysis of CDs in recent years, the existing reviews lack a discussion of the mechanisms by which CDs play multiple roles in photocatalytic CO₂ reduction. From the perspective of the mechanism of photocatalytic CO₂ reduction, it’s found that CDs utilize their unique optical properties to broaden the absorption range of catalysts, and can also serve as photocatalysts or co-catalysts to improve the photocatalytic efficiency by broadening the available light range, reducing carrier recombination, enhancing CO₂ adsorption capacity, adjusting the morphology of catalysts and multiple synergies. Finally, the challenges and opportunities are analyzed, and the future development prospects are projected, providing new ideas for promoting the industrial preparation and photocatalytic applications of CDs.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119328"},"PeriodicalIF":7.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Porous polymer monolithic scaffold decorated visible light responsive Bi2S3-Nb2O5 heterostructured renewable photocatalysts for the fast dissipation of contaminants of emerging concern","authors":"Denna Babu,&nbsp;Prabhakaran Deivasigamani","doi":"10.1016/j.jece.2025.119296","DOIUrl":"10.1016/j.jece.2025.119296","url":null,"abstract":"<div><div>In this study, we report a novel (30 %)Bi₂S₃-(70 %)Nb₂O₅ heterostructure nanocomposite (NC), referred to as BSNO (30/70), rationally integrated onto a translucent macro-/meso-porous poly(ethylene glycol dimethacrylate) monolith (PO) to obtain a renewable, visible-light-responsive photocatalyst, denoted as PO-BSNO (30/70), for the decontamination of carcinogenic hexavalent chromium (Cr(VI)) and mutagenic bisphenol A (BPA). PO-BSNO (30/70) photocatalyst exhibits exceptional structural features and a highly porous architecture, as confirmed by high-resolution transmission electron microscopy (HR-TEM) and field emission scanning electron microscopy (FE-SEM). UV-Visible diffuse reflectance spectroscopy (UV-Vis DRS) analysis indicates a narrowed energy band gap, enabling visible-light activity in both BSNO (30/70) and PO-BSNO (30/70) photocatalysts. Photoluminescence spectroscopy (PLS), electrochemical impedance spectroscopy (EIS), and photocurrent measurements collectively demonstrate reduced charge carrier recombination and enhanced charge transfer for the monolithic photocatalyst. Brunauer-Emmett-Teller (BET) and Barrett-Joyner-Halenda (BJH) analyses reveal that PO-BSNO (30/70) possesses a larger surface area and improved porosity relative to BSNO NCs. Mott-Schottky (M-S) analysis, X-ray photoelectron spectroscopy (XPS), and valence band XPS (VB-XPS) are employed to evaluate the semiconductor behavior, band edge positions, and oxidation states of elements, elucidating the photocatalytic mechanism. The PO-BSNO (30/70) photocatalyst enables efficient photoreduction of Cr(VI) at pH 2.0 and near-complete BPA degradation at pH 3.0 using a 50 mg dosage. The presence of formic acid enhances Cr(VI) reduction efficiency to 97.0 %, while 3.0 mM H₂O₂ accelerates BPA degradation to 98.5 % within 1 h. The proposed monolithic photocatalyst demonstrates excellent stability, reusability, and strong potential for advanced water decontamination under visible-light irradiation.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119296"},"PeriodicalIF":7.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adsorption performance of water-floating composites for heavy metal removal in marine and freshwater systems","authors":"Ana-Maria Solonaru,&nbsp;Mirela Honciuc,&nbsp;Andrei Honciuc","doi":"10.1016/j.jece.2025.119312","DOIUrl":"10.1016/j.jece.2025.119312","url":null,"abstract":"<div><div>Water-floating adsorbents for removal of heavy metal contaminants have received little attention but could ignite energy efficient technologies for on-site water decontamination applications. The aim of this work is to introduce such adsorbents based on biocompatible polymer matrices. First, we synthesize polymer microparticles via Pickering emulsion polymerization, utilizing environmentally neutral silica nanoparticles as stabilizers dispersed in the water phase. The oil phase contains vinyl pyridine and methacrylic acid as ligands, along with divinylbenzene as a crosslinking agent. The emulsion composition dictates the morphology, resulting in either solid polymer microspheres from O/W emulsions or blob-like microparticles with complex internal structures from mixed W/O/W Pickering emulsions. Next, we systematically compare these two microparticle types for heavy metal ion adsorption of Cu(II), Pb(II), Hg(II), Co(II), and Ni(II) from water, including real marine and freshwater samples spiked to simulate pollution. Adsorption performance differences are analyzed in relation to chemical composition and morphology. Additionally, these microparticles are embedded into a polyvinyl alcohol hydrogel matrix, creating water-floating composites, whose adsorption capacities are also evaluated. This study identifies key physicochemical parameters influencing heavy metal ion adsorption efficiency for both microparticles and hydrogel composites. While composites exhibit slightly lower adsorption capacities than free microparticles their performance remains comparable. The floating nature of these materials makes them attractive for marine decontamination applications, offering a scalable solution for heavy metal remediation in coastal and oceanic environments.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119312"},"PeriodicalIF":7.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"HNO3 exfoliated ultrathin g-C3N4 loaded CuZnInS as a Z-scheme heterojunction photocatalyst for efficient photocatalytic hydrogen evolution","authors":"Ying Zhang,&nbsp;Chao Qu,&nbsp;Decai Yang,&nbsp;Lanyang Wang,&nbsp;Youguo Luo,&nbsp;Qing Ye","doi":"10.1016/j.jece.2025.119326","DOIUrl":"10.1016/j.jece.2025.119326","url":null,"abstract":"<div><div>Graphitic carbon nitride-based (g-C₃N₄) catalysts that respond to visible light have exhibited substantial potential for application in water splitting for hydrogen production. However, the material faces challenges such as low quantum efficiency and restricted utilization of visible light. In this study, we developed a Z-scheme heterojunction photocatalyst comprising ultrathin g-C₃N₄ (ExCN) and CuZnInS (CZIS), which significantly enhances the photocatalytic hydrogen production performance. Notably, the hydrogen production rate reached up to 185.23 μmol g⁻¹ h⁻¹ without platinum co-catalysts. Comprehensive characterization and mechanism analysis revealed that the ultrathin, porous structure and oxygen-doped characteristics of ExCN markedly increased the number of active sites and extend the visible light response range. Moreover, ExCN serves as an effective carrier for CZIS particles. The coupling of CZIS with ExCN to form a Z-scheme heterojunction effectively promoted the spatial separation of photogenerated charge carriers. The narrow bandgap of CZIS broadens the light response range, while metal sites function as electron traps, suppressing electron-hole recombination and further enhancing catalytic efficiency. This study offers new insights into the rational design of visible-light-responsive hydrogen production catalysts based on graphitic carbon nitride.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119326"},"PeriodicalIF":7.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tailoring the properties of RhNi/CeO2 catalysts for improved chlorate reduction efficiency","authors":"Le Yu ,&nbsp;Lei Wang ,&nbsp;Zhaoyi Xu ,&nbsp;Shourong Zheng ,&nbsp;Tao Long","doi":"10.1016/j.jece.2025.119301","DOIUrl":"10.1016/j.jece.2025.119301","url":null,"abstract":"<div><div>Chlorate (ClO₃^-) are commonly identified oxyanions pollutant in the water environment, and catalytic hydrogenation reduction of oxyanions has emerged as a promising water treatment strategy. Supported Rh catalysts have been widely applied in the liquid phase catalytic hydrogenation due to their high activation capacity for H₂, while exploring highly active and stable catalysts for different pollutants remains a great challenge. The transition metal Ni was introduced into the Rh-based catalyst Rh/CeO₂ by the impregnation method to obtain the bimetallic catalyst RhNi₁₀/CeO₂, which was used in the catalytic hydrogenation reduction of ClO₃^-. In-situ DRIFTS identifies the highly dispersed Rh nanoparticles in the catalyst, and the strong metal-support interaction between the supported bimetallic Rh-Ni and CeO₂ supports is determined by XPS characterization. RhNi₁₀/CeO₂ exhibits an initial activity approximately 27 times higher than that of Rh/CeO₂. Furthermore, theoretical calculations corroborate the experimental observation that when chlorate is adsorbed on the Rh surface, the energy released increases with the introduction of Ni. We reveal the enhanced reactivity of the RhNi₁₀/CeO₂ through changing ClO₃^- concentration, which renders adsorption on catalyst surface pathway sequencely more favorable. In addition, the reusability of the catalyst was tested by adding chloride ions (Cl^-) and catalyst recycling. Results revealed that RhNi₁₀/CeO₂ maintained 100 % removal efficiency despite slight inhibition by Cl^- (12 times the ClO₃^- concentration of 0.4 mM). After 5 cycles, the activity loss remained below 9 % with 100 % removal efficiency. The bimetallic synergy leads to increased resistance to chloride ion interference, providing high catalytic stability.</div></div>","PeriodicalId":15759,"journal":{"name":"Journal of Environmental Chemical Engineering","volume":"13 6","pages":"Article 119301"},"PeriodicalIF":7.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}