Journal of Environmental Sciences-china最新文献

{"title":"Impact of open-field biomass burning on regional air quality in Northern India","authors":"Pooja Manwani ,&nbsp;Chandra Venkataraman ,&nbsp;Harish C. Phuleria","doi":"10.1016/j.jes.2024.11.021","DOIUrl":"10.1016/j.jes.2024.11.021","url":null,"abstract":"<div><div>Over the past decade, biomass burning has emerged as one of the main polluting events in northern India. It is one of the major sources of brown carbon (BrC), the light-absorbing organic carbon component of PM_2.5. Most studies on the impact of biomass burning in India are based on source locations or urban areas; very little is known about its effects on a regional background location. We examine the effect of biomass burning on regional air quality and co-occurring meteorological factors. Year-long PM_2.5 levels and light absorption by carbonaceous aerosols at 880 nm and 370 nm were measured at Rohtak, a regional background location. Results showed that post-harvest biomass burning in the Punjab-Haryana region affects the regional air quality with a lead of one to two days. A comparison of dispersion-normalized concentrations showed that open-field biomass burning not only affects regional air quality in the post-monsoon season (<em>kharif</em> crops) but is also a dominant source of PM_2.5 in the post-harvest summer season (<em>rabi</em> crop). A significant (<em>p</em> &lt; 0.05) difference is observed in PM_2.5, b_abs-880, and b_abs-370 between biomass burning days and non-biomass burning days during the <em>kharif</em> and <em>rabi</em> harvest seasons. Regression analyses confirm that in summer, regional PM_2.5 and light absorption by aerosols are influenced more strongly by post-harvest burning of <em>rabi</em> crops. However, adverse meteorology plays a more dominant role in the post-monsoon season than biomass burning. These findings underscore the need for better policy interventions to curb biomass burning and improve air quality during both harvest seasons.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"158 ","pages":"Pages 126-136"},"PeriodicalIF":5.9,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144240421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The sequestration of metal nanoparticles in the liver: A trade-off between density and degradability","authors":"Junjie Ma ,&nbsp;Li Zeng ,&nbsp;Yaquan Liu ,&nbsp;Shunhao Wang ,&nbsp;Min Li ,&nbsp;Linlin Yao ,&nbsp;Gang Tang ,&nbsp;Ziniu Wang ,&nbsp;Jiexia Cheng ,&nbsp;Qi Wu ,&nbsp;Guangxuan Wang ,&nbsp;Chunzhen Shi ,&nbsp;Liqun Chen ,&nbsp;Runzeng Liu ,&nbsp;Jie Gao ,&nbsp;Guangbo Qu ,&nbsp;Guibin Jiang","doi":"10.1016/j.jes.2025.06.012","DOIUrl":"10.1016/j.jes.2025.06.012","url":null,"abstract":"<div><div>The widespread use and casual disposal of nanoproducts increase human exposure to nanoparticles (NPs), posing potential health risks. When coming into contact with biofluid, NPs passively move in the bloodstream and reach target organs and cells. The nano-bio interactions, distribution, and fate of NPs are highly dependent on their physicochemical properties after direct exposure into the systemic circulation. In this study, silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) with the same size, shape, surface chemistry, and particle number but different densities were co-exposed to mice to explore their blood circulation and liver accumulation. The co-exposure avoids the individual differences in a single-material exposure model. Post-exposure, Au remained longer in the bloodstream than Ag, while 92.2 % of the injected dose ( %ID) of Ag accumulated in the liver compared to 78.0 % for Au. Over a span of 3 to 72 h, Ag content in bloodstream increased while Au was undetectable. In the liver, the %ID of Ag sharply decreased to 9.4 %, while the %ID of Au remained nearly unchanged. We proved the gradual dissociation of AgNPs into Ag ions using a fluorescent probe. Therefore, density-dependent dynamics of NPs in the blood caused greater liver accumulation of low-density Ag. However, the gradual degradation of AgNPs contributes to a high degree of distribution of Ag in the body while the AuNPs remain sequestered in the liver. This study implies that the dynamic transformation of NPs complicates their density-dependent retention, which are plausible to determine the accumulation and biological effects to the organisms.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"160 ","pages":"Pages 682-689"},"PeriodicalIF":6.3,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145220058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Drug interactions with perfluorooctanoic acid and perfluorooctane sulfonate in cytotoxic activity against prostate cancer - in vitro studies","authors":"Grażyna Gałęzowska ,&nbsp;Justyna Rogowska ,&nbsp;Jędrzej Antosiewicz","doi":"10.1016/j.jes.2025.06.006","DOIUrl":"10.1016/j.jes.2025.06.006","url":null,"abstract":"<div><div>Poly- and perfluoroalkyl substances (PFAS), including perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), are persistent environmental pollutants with potential toxicological effects on human health. The aim of this study was to investigate the impact of PFOS and PFOA on the effectiveness of selected drugs used in the treatment of prostate cancer based on <em>in vitro</em> tests on cell lines. Three cell lines were used in the study: two human prostate cancer cells (DU-145 and PC3) and one human normal prostate cell line (PNT1A). Using dose-response experiments, it was observed that PFAS had differential effects on cancer and normal cells. At low concentrations, PFOA and PFOS stimulated the proliferation of cancer cells, particularly PC3, while higher concentrations led to reduced viability. In normal cells, PFOS exhibited greater cytotoxicity compared to PFOA. Furthermore, PFOS enhanced docetaxel cytotoxicity in PC3 cells but reduced its efficacy in DU-145 cells. Similarly, PFOA diminished cabazitaxel effectiveness in DU-145 cells, suggesting PFAS-drug interactions may depend on the cell type, drug, and PFAS concentration. Results suggest that PFAS may influence cellular processes through receptor-mediated pathways, oxidative stress modulation, and protein binding, altering drug bioavailability and cellular uptake. The study also highlights the non-monotonic dose-response relationships observed in PFAS-treated cells. These findings raise concerns about the potential risks associated with PFAS exposure, particularly in the context of cancer treatment. Future studies should focus on long-term, low-dose PFAS exposure, the use of primary cells, and the molecular mechanisms driving these interactions to better inform therapeutic strategies.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"159 ","pages":"Pages 88-96"},"PeriodicalIF":6.3,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144721666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel approach to identify the spatial characteristics of ozone-precursor sensitivity based on interpretable machine learning","authors":"Huiling He ,&nbsp;Kaihui Zhao ,&nbsp;Zibing Yuan ,&nbsp;Jin Shen ,&nbsp;Yujun Lin ,&nbsp;Shu Zhang ,&nbsp;Menglei Wang ,&nbsp;Anqi Wang ,&nbsp;Puyu Lian","doi":"10.1016/j.jes.2025.06.011","DOIUrl":"10.1016/j.jes.2025.06.011","url":null,"abstract":"<div><div>To curb the worsening tropospheric ozone (O₃) pollution problem in China, a rapid and accurate identification of O₃-precursor sensitivity (OPS) is a crucial prerequisite for formulating effective contingency O₃ pollution control strategies. However, currently widely-used methods, such as statistical models and numerical models, exhibit inherent limitations in identifying OPS in a timely and accurate manner. In this study, we developed a novel approach to identify OPS based on eXtreme Gradient Boosting model, Shapley additive explanation (SHAP) algorithm, and volatile organic compound (VOC) photochemical decay adjustment, using the meteorology and speciated pollutant monitoring data as the input. By comparing the difference in SHAP values between base scenario and precursor reduction scenario for nitrogen oxides (NO_x) and VOCs, OPS was divided into NO_x-limited, VOCs-limited and transition regime. Using the long-lasting O₃ pollution episode in the autumn of 2022 at the Guangdong-Hong Kong-Macao Greater Bay Area (GBA) as an example, we demonstrated large spatiotemporal heterogeneities of OPS over the GBA, which were generally shifted from NO_x-limited to VOCs-limited from September to October and more inclined to be VOCs-limited at the central and NO_x-limited in the peripheral areas. This study developed an innovative OPS identification method by comparing the difference in SHAP value before and after precursor emission reduction. Our method enables the accurate identification of OPS in the time scale of seconds, thereby providing a state-of-the-art tool for the rapid guidance of spatial-specific O₃ control strategies.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"159 ","pages":"Pages 54-63"},"PeriodicalIF":5.9,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144694759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biodegradation pathway and mechanism of new emerging pollutants neonicotinoids","authors":"Azhagarsamy Satheeshkumar ,&nbsp;Ramanathan Duraimurugan ,&nbsp;Premalakshmi Velu ,&nbsp;Balakrishnan Muthukumar ,&nbsp;Selvakumar Santhosh ,&nbsp;Sandhanasamy Devanesan ,&nbsp;Mohamad S. AlSalhi ,&nbsp;Kuppusamy Sathishkumar ,&nbsp;Pattanathu KSM Rahman ,&nbsp;Aruliah Rajasekar","doi":"10.1016/j.jes.2025.05.066","DOIUrl":"10.1016/j.jes.2025.05.066","url":null,"abstract":"<div><div>Neonicotinoids (NEOs), a fourth-generation pesticide group, are extensively utilized for crop protection in agriculture. However, their excessive use can negatively impact the environment and human health. Biodegradation offers an eco-friendly method for eliminating these insecticides. This study employed bacterial strains <em>Stutzerimonas</em> sp. SA1 and <em>Pseudomonas</em> sp. SA3, isolated from pesticide-contaminated agricultural soil, to degrade the various NEOs including acetamiprid (AC), imidacloprid (IM), thiamethoxam (TH), and clothianidin (CL). Numerous intermediate compounds were detected during biodegradation, and potential pathways were discussed. The highest reduction of chemical oxygen demand of clothianidin (87 %) and acetamiprid (72 %) were observed in <em>Stutzerimonas</em> sp. SA1 and <em>Pseudomonas</em> sp. SA3 were AC 72 % and CL 66 % respectively. A bacterial consortium effectively breakdown the NEOs through the secretion of nitrile hydratase (NH) enzyme. Fourier-transform infrared spectroscopy results confirmed the presence of functional groups alkane and carbonyl in the NEOs residue. The Gas Chromatography Mass Spectrometry data revealed that the <em>Stutzerimonas</em> sp. SA1 has the highest potential of biodegradation efficiency (BE) AC (89 %) and IM (87 %) than the other NEOs respectively. The <em>Pseudomonas</em> sp<em>.</em> SA3 shoved the higher BE in the AC (90 %), IM (97 %) and TH (85 %) than the bacterium <em>Stutzerimonas</em> sp. SA1. The results suggest that these bacteria produce the degradative enzymes effectively and utilize the NEOs as a carbon source. The results suggest that these bacteria produce the NH degradative enzymes and utilize the NEOs as a carbon source. In conclusion, the strains <em>Stutzerimonas</em> sp. SA1 and <em>Pseudomonas</em> sp. SA3 were identified as potential candidate for the biomineralization and removal of NEOs contaminated environment.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"160 ","pages":"Pages 197-205"},"PeriodicalIF":6.3,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Degradation of polymeric carbohydrates coupled with cellular motility driving microbial niche separation in the Pearl River Estuary surface sediment","authors":"Cuici Sun ,&nbsp;Wenjie Zhao ,&nbsp;Weizhong Yue ,&nbsp;Hao Cheng ,&nbsp;Aimin Long ,&nbsp;Jianping Yin ,&nbsp;Fulin Sun ,&nbsp;Youshao Wang","doi":"10.1016/j.jes.2025.04.032","DOIUrl":"10.1016/j.jes.2025.04.032","url":null,"abstract":"<div><div>Estuaries are key areas for organic carbon cycling, where polymeric carbohydrates are abundant and chemically diverse. The recycling of these polymers by microbes depends on a variety of carbohydrate-active enzymes (CAZymes). However, it remains unclear whether other gene traits, particularly those related to cell motility toward polymeric carbohydrates, are intertwined with carbohydrate depolymerization and niche specialization in estuarine sediment soils. In this study, estuarine sediments were incubated with four prevalent polymeric carbohydrates (laminarin, fucan, cellulose, and chitin) under anaerobic conditions. Based on metagenomic analysis, we identified potential responses to the degradation and utilization of polymeric carbohydrate substrates from the perspectives of CAZymes and sugar transporters. The analysis of metagenomic gene data also revealed a positive correlation between chemotaxis and the abundance of CAZymes genes. Furthermore, metagenomes-assembled genomes (MAGs) that exhibited higher abundance in polysaccharide-treated samples compared to controls also featured elevated copies of genes involved in polysaccharide utilization loci (PULs), chemotaxis, as well as those associated with flagellar or gliding movement. <em>SprB</em> and <em>CTDs</em> associated with gliding proteins genes are essential for type IX secretion system-mediated secretion of CAZymes and gliding motility in Bacteroidota. The enhanced potential for mobility, coupled with the ability to degrade polymeric carbohydrates, may enable these bacteria to exploit nutrients beyond carbon sources, thereby potentially broadening their ecological niches.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"160 ","pages":"Pages 414-423"},"PeriodicalIF":6.3,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fungus Neosartorya (Aspergillus) fischeri improves the fitness, tolerance and absorption of heavy metals in Typha latifolia","authors":"Amauri Ponce-Hernández ,&nbsp;Candy Carranza-Álvarez ,&nbsp;Ernestina Castro-Longoria ,&nbsp;Rufina Hernández-Martínez ,&nbsp;Domingo Martínez-Soto","doi":"10.1016/j.jes.2025.05.049","DOIUrl":"10.1016/j.jes.2025.05.049","url":null,"abstract":"<div><div>Heavy metal contamination is a global issue caused by anthropogenic activities leading to severe negative effects on the environment and human health. To address this problem, bioremediation strategies utilizing plants such as <em>Typha latifolia</em> and their symbiotic fungi have been adopted to remediate contaminated areas and mitigate the harmful effects of these pollutants. In this study, the endophytic fungus <em>Neosartorya fischeri</em> was isolated from the roots of <em>T. latifolia</em> plants growing in heavy metal-contaminated sites. <em>N. fischeri</em> colonized the epidermis and root cortex and showed high tolerance to toxic concentrations of silver (Ag) (1 mg/kg), copper (Cu) (60 mg/kg) and cadmium (Cd) (8 mg/kg). <em>N. fischeri</em> removed 8.7 % ± 0.5 % Cd from the medium, biosorbed 15.24 ± 0.2 mg/kg into its biomass, and enhanced the tolerance and bioaccumulation of Cd (184.18 ± 1.14 mg/kg) in plant roots. Moreover, <em>N. fischeri</em> produces siderophores, volatile compounds and solubilizes phosphates, which improve plant fitness. This was evidenced by a 28 % increase in photosynthetic pigments in <em>T. latifolia</em> plants colonized with <em>N. fischeri</em>. Additionally, <em>N. fischeri</em> inhibits the growth of important phytopathogens from the Fusarium genus. These findings highlight the important role of <em>N. fischeri</em> in enhancing the fitness and resilience of <em>T. latifolia</em> in hostile environments, demonstrating the potential of <em>N. fischeri-T. latifolia</em> association for the bioremediation of contaminated sites.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"160 ","pages":"Pages 218-230"},"PeriodicalIF":6.3,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nanoparticle assisted phytoremediation: An eco-friendly approach for removal of heavy metals from the environment","authors":"Sakshi Sharma,&nbsp;Ritika Dadhwal,&nbsp;Ritesh Banerjee","doi":"10.1016/j.jes.2025.05.034","DOIUrl":"10.1016/j.jes.2025.05.034","url":null,"abstract":"<div><div>The surge in environmental pollution in recent years driven by numerous pollutants has necessitated the search for efficient removal methods. Phytoremediation is an eco-friendly technique that provides multiple benefits over conventional methods of removing contaminants. Despite the numerous benefits of this technique, it has certain limitations that can be addressed by incorporating nanoparticles to improve its effectiveness. This review paper aims to explore the impact of heavy metal pollution on plants and human health. It highlights the role and mechanism of nanoparticles in enhancing phytoremediation, their application in the detection of heavy metals, and the strategies for the safe disposal of phytoremediation biomass. Biosynthesized nanoparticles are eco-friendly and non-toxic, with applications in biomedical and environmental fields. Nanoparticles can be used in the form of nano biosensors like smartphone-operated wireless sensors made from <em>Cinnamomum camphora</em>, enabling efficient detection of heavy metal ions. According to the studies, nanoparticles remove 80 %–97 % of heavy metals by various methods like reduction, precipitation, adsorption, etc. The phytoremediation biomass disposal can be done by heat treatment, phytomining, and microbial treatment with some modifications to further enhance their results. Phytoremediation is an environmentally friendly technique but requires further research and integration with biomass energy production to overcome scalability challenges and ensure safe biomass disposal.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"159 ","pages":"Pages 705-720"},"PeriodicalIF":6.3,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144842823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comprehensive insights into the organic/inorganic composition separation of sewer sediment by various driving forces: Separation pathway and thermodynamic evolution","authors":"Heliang Pang ,&nbsp;Jiangbo Ding ,&nbsp;Yan Wang ,&nbsp;Jiawei Liu ,&nbsp;Qiwen Qin ,&nbsp;Jinsuo Lu","doi":"10.1016/j.jes.2025.03.027","DOIUrl":"10.1016/j.jes.2025.03.027","url":null,"abstract":"<div><div>With the legislative development, the organic and inorganic composition separation has become the primary requirement for sewer sediment disposal, however the relevant technology has been rarely reported and the driving mechanism was still unclear. In this study, direct disintegration of biopolymers and indirect broken of connection point were investigated on the hydrolysis and component separation. Three typical sewer sediment treatment approaches, i.e., alkaline, thermal and cation exchange treatments were proposed, which represented the hydrolysis-driving forces of chemical hydrolysis, physical hydrolysis and innovative cation bridging breakage. The results showed that the organic and inorganic separation rates of sewer sediment driven by alkaline, thermal and cation exchange treatments reached 21.26 %, 23.80 %, and 19.56 %-48.0 %, respectively, compared to 4.43 % in control. The secondary structure of proteins was disrupted, transitioning from α-helix to β-turn and random coil. Meanwhile, much biopolymers were released from solid to the liquid phase. From thermodynamic perspective, sewer sediment deposition was controlled by short-range interfacial interactions described by extended Derjaguin-Landau-Verwey-Overbeek theory. Additionally, the separation of organic and inorganic components was positively correlated with the thermodynamic parameters (Corr = 0.87), highlighted the robustness of various driving forces. And the flocculation energy barriers were 2.40 (alkaline), 1.60 times (thermal), and 4.02–4.97 times (cation exchange) compared to control group. The findings revealed the contrition difference of direct disintegration of gelatinous biopolymers and indirect breakage of composition connection sites in sediment composition separation, filling the critical gaps in understanding the specific mechanisms of sediment biopolymer disintegration and intermolecular connection breakage.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"159 ","pages":"Pages 785-796"},"PeriodicalIF":6.3,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144866133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrated approach to uranium recovery and organic decomposition with electricity generation in a self-driven photoelectrochemical system","authors":"Qingqing Yang ,&nbsp;Yi-Lin Liu ,&nbsp;Haiyi Gong ,&nbsp;Qingyan Zhang ,&nbsp;Shuaishuai Guo ,&nbsp;Qingyi Zeng","doi":"10.1016/j.jes.2025.05.031","DOIUrl":"10.1016/j.jes.2025.05.031","url":null,"abstract":"<div><div>Simultaneous uranium recovery, organic pollutant degradation, and electricity generation were achieved by employing a self-driven photoelectrochemical (PEC) system equipped with a modified carbon felt (MCF) cathode for the treatment of complex radioactive wastewater. The MCF cathode was synthesized via a facile hydrothermal method, which modified the surface functional groups on carbon felt (CF) with enhanced active site availability and facilitated interfacial charge transfer, thus improving its UO₂²⁺ adsorption and reduction capacities. The self-driven PEC system with the MCF cathode demonstrated remarkable removal efficiencies and rate constants (<em>k</em>) for UO₂²⁺ (98.8 % and 0.111 min⁻¹) and chlortetracycline hydrochloride (CTC) (92.9 % and 0.028 min⁻¹) within 40 min and 90 min, respectively, coupled with an excellent power output of 1.41 mW/cm². Additionally, the system with the MCF cathode exhibited superior removal performance for UO₂²⁺ and CTC in treating model complex wastewater under wide conditions. Even under natural sunlight, the system achieved over 80 % removal efficiency for both UO₂²⁺ and CTC. Moreover, the uranium immobilized on the MCF cathode was mainly reduced to U(IV) species (90.51 %), and performance remained robust over ten operational cycles. The cathode surface modification strategy and its application in the system provide a cost-effective, multi-functional and high-efficiency approach to controlling nuclides and organic pollutants in complex radioactive wastewater.</div></div>","PeriodicalId":15788,"journal":{"name":"Journal of Environmental Sciences-china","volume":"160 ","pages":"Pages 274-282"},"PeriodicalIF":6.3,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}