Journal of Hazardous Materials最新文献_第10页

Root exudates of Helianthus annuus enhanced tetrabromobisphenol A derivatives transformation in rhizospheric soil: Insights from desorption behavior and bacteriome succession 向日葵根系分泌物促进了四溴双酚A衍生物在根际土壤中的转化：来自解吸行为和细菌群演替的见解

IF 11.3 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-10-10 DOI: 10.1016/j.jhazmat.2025.140082

Xiaonuo Zhang , Huihui Wan , Tadiyose Girma Bekele , Jiyan Liu , Hongxia Zhao , Jin Zheng , Yuhong Su

{"title":"Root exudates of Helianthus annuus enhanced tetrabromobisphenol A derivatives transformation in rhizospheric soil: Insights from desorption behavior and bacteriome succession","authors":"Xiaonuo Zhang , Huihui Wan , Tadiyose Girma Bekele , Jiyan Liu , Hongxia Zhao , Jin Zheng , Yuhong Su","doi":"10.1016/j.jhazmat.2025.140082","DOIUrl":"10.1016/j.jhazmat.2025.140082","url":null,"abstract":"<div><div>Substantial alterations in the rhizosphere induced by root exudates can significantly influence the environmental behavior of tetrabromobisphenol A derivatives (TBBPAs) in soil-plant interface. However, the empirical evidence regarding the impact of root exudates on the transformation pathways of TBBPAs is notably scarce. The present study, through pot experiment, integrated root metabolome analysis, desorption kinetics and high-throughput sequencing technology to elucidate the mechanism of how actual root secretions mediate the environmental fate of TBBPAs in the soil-plant system from both macro and micro perspectives. The pot experiment indicated that compared with the natural attenuation, <em>Helianthus annuus</em> cultivation significantly enhanced TBBPAs dissipation efficiency by 55.24–58.89 % after 45 days remediation, while facilitating formation of β-scission, oxidative cleavage, and <em>O</em>-methylation products. Root metabolomic analysis revealed a substantial shift in root exudates exposed to TBBPAs, which in turn induced the enrichment of specific TBBPA-degrading bacterial genera in the rhizosphere, including <em>Sphingomonas</em>, <em>Rhizomicrobium</em>, <em>Saccharibacteria_genera_incertae_sedis</em>, <em>Parcubacteria_genera_incertae_sedis</em>, <em>Gaiella</em>, and <em>unclassified_Xanthomonadaceae</em>. Crucially, this study provided the first empirical evidence that root exudates significantly enhance TBBPAs desorption from soil, uncovering a key plant-microbe interaction mechanism behind phytoremediation. These findings advanced our understanding of rhizosphere-mediated transformation processes of organic pollutants and provided critical data for ecological risk assessment in contaminated soil ecosystems.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"499 ","pages":"Article 140082"},"PeriodicalIF":11.3,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145255317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

引用次数: 0

Multi-omics-Guided Discovery of Broad-Spectrum Plasticizer Degrader Rhodococcus sp. SPR1 and Key Enzymes Driving Tris(2-ethylhexyl) Trimellitate (TOTM) Degradation 多组学指导下广谱增塑剂降解剂红球菌sp. SPR1和降解Tris（2-乙基己基）Trimellitate （TOTM）关键酶的发现

IF 13.6 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-10-10 DOI: 10.1016/j.jhazmat.2025.140086

Xiaoxi Kang, Xiaolei Wang, Yunhua Zhang, Feng Ju

{"title":"Multi-omics-Guided Discovery of Broad-Spectrum Plasticizer Degrader Rhodococcus sp. SPR1 and Key Enzymes Driving Tris(2-ethylhexyl) Trimellitate (TOTM) Degradation","authors":"Xiaoxi Kang, Xiaolei Wang, Yunhua Zhang, Feng Ju","doi":"10.1016/j.jhazmat.2025.140086","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.140086","url":null,"abstract":"Plastic pollution has garnered global attention, yet the environmental threats posed by plasticizers remain largely understudied. Emerging plasticizers, such as tris(2-ethylhexyl) trimellitate (TOTM), are increasingly prevalent, but their biodegradation mechanism and associated strains are poorly understood. Here, we discovered <em>Rhodococcus</em> strain SPR1 from the gut of polyvinyl chloride (PVC)-consuming insect larvae, which exhibits broad-spectrum degradation capabilities across five representative plasticizers, including both traditional and emerging types. SPR1 achieved up to 63.07% degradation of TOTM in 120 hours, with two enzymes TOTMaseA (linear primary-alkylsulfatase) and TOTMaseB (α/β hydrolase), validated as key contributors. Enzyme kinetics revealed that TOTMaseA exhibited a Vmax of 2.655 mM and Km of 0.3821 µM/min, while TOTMaseB showed a Vmax of 0.9664 mM and Km of 0.2245 µM/min, confirming that TOTMaseA has superior catalytic throughput and serves as the dominant contributor to TOTM degradation. Notably, TOTMaseA also displayed consistently greater abundance compared to TOTMaseB under TOTM exposure. The widespread presence of homologous strains and enzymes of TOTM-degrading SPR1 in environmental samples underscores the ecological relevance and bioremediation potential. This study provides quantitative and mechanistic insights into the microbial degradation of TOTM and advances our understanding of enzymatic strategies that enable the breakdown of emerging plasticizers.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"101 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145255321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

引用次数: 0

Gabapentin lactam induces neurodevelopmental deficits via calcium-mitochondria-ROS cascade 加巴喷丁内酰胺通过钙-线粒体- ros级联诱导神经发育缺陷

IF 11.3 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-10-10 DOI: 10.1016/j.jhazmat.2025.140079

Jie Gu , Jun Hu , Dingyu Zhou , Yue Fan , Yide He , Guixiang Ji , Xiaowei Jin

{"title":"Gabapentin lactam induces neurodevelopmental deficits via calcium-mitochondria-ROS cascade","authors":"Jie Gu , Jun Hu , Dingyu Zhou , Yue Fan , Yide He , Guixiang Ji , Xiaowei Jin","doi":"10.1016/j.jhazmat.2025.140079","DOIUrl":"10.1016/j.jhazmat.2025.140079","url":null,"abstract":"<div><div>Gabapentin lactam (GBP-L), a transformation product of the anticonvulsant gabapentin, persists in surface waters at concentrations reaching μg/L levels due to its recalcitrance to conventional treatment processes. Despite growing concerns about pharmaceutical transformation products, their mechanistic toxicity pathways remain poorly characterized. Here, we used zebrafish embryo-larval models to investigate the neurodevelopmental effects of environmentally relevant GBP-L concentrations (8, 80, and 800 μg/L). Exposure to GBP-L had no significant effect on the survival rate of zebrafish embryos, but significantly impaired the hatching process, increased the malformation rate, and inhibited body length development—with a 3.86 % reduction in body length compared to the control group at 72 hpf and a 3.70 % reduction at 144 hpf. Motor assessment revealed a concentration-dependent reduction in swimming activity. Meanwhile, transgenic imaging indicated a decrease in neuronal fluorescence intensity by 9.46 %, alongside a reduction in axonal length of 7.84 %. Mechanistic investigations demonstrated that GBP-L activates calcium signaling pathways, triggering intracellular Ca²⁺ overload that leads to mitochondrial dysfunction, increased reactive oxygen species (ROS) production, and disrupted neurotransmitter homeostasis. Co-exposure with the calcium channel blocker verapamil significantly mitigated these effects, confirming calcium signaling as the molecular initiating event in GBP-L neurotoxicity. Transcriptomic analyses further validated the calcium-mitochondria-ROS cascade as the critical toxicity pathway. This study provides the first evidence that GBP-L, a persistent pharmaceutical transformation product, can disrupt neurodevelopment by perturbing calcium signalling at environmentally relevant concentrations, highlighting the need to establish a comprehensive risk assessment framework that includes transformation products.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"499 ","pages":"Article 140079"},"PeriodicalIF":11.3,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145255318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

引用次数: 0

Multiplex immunochromatographic assay for simultaneous detection of triclosan, triclocarban and chlorophene in environmental samples 多重免疫层析法同时检测环境样品中三氯生、三氯卡班和氯苯

IF 11.3 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-10-10 DOI: 10.1016/j.jhazmat.2025.140080

Jiaxun Li, Lingling Guo, Shanshan Song, Rui Gao, Hua Kuang, Chuanlai Xu, Liguang Xu

{"title":"Multiplex immunochromatographic assay for simultaneous detection of triclosan, triclocarban and chlorophene in environmental samples","authors":"Jiaxun Li, Lingling Guo, Shanshan Song, Rui Gao, Hua Kuang, Chuanlai Xu, Liguang Xu","doi":"10.1016/j.jhazmat.2025.140080","DOIUrl":"10.1016/j.jhazmat.2025.140080","url":null,"abstract":"<div><div>Triclosan (TCS), triclocarban (TCC), and chlorophene (CP) are widely used antimicrobial agents with persistent environmental residues, posing potential ecological and health risks. Thus, developing a sensitive, rapid on-site screening method is highly significant. In this study, computer simulation was first employed to screen the haptens of TCS, TCC and CP to prepare highly specific and high affinity monoclonal antibodies with half-maximal inhibitory concentrations of 1.044, 0.964, and 1.704 ng/mL, respectively. Based on this, a multi-immunochromatography assay (MICA) was established to simultaneously and rapidly detect TCS, TCC, and CP in lake water, wastewater and sludge, with calculated limits of detection of 1.138, 1.090, and 2.525 μg/kg in lake water; 1.147, 1.093, and 2.511 μg/kg in wastewater; and 1.668, 1.493, and 3.106 μg/kg in sludge, respectively. Analysis of real samples confirmed strong consistency between MICA and HPLC-MS/MS results, with high accuracy, stability, and reliability, supporting its application for on-site screening of large batches of samples.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"499 ","pages":"Article 140080"},"PeriodicalIF":11.3,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145255314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

引用次数: 0

Efficient degradation of polylactic acid plastics by a novel fungal strain Arthrinium phaeospermum and mechanistic insights 一种新型真菌对聚乳酸塑料的高效降解及其机理研究

IF 11.3 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-10-10 DOI: 10.1016/j.jhazmat.2025.140091

Zhiying Xu , Jie Yang , You Ge , Zeguo Fang , Luyang Ma , Yujie Duan , Zhenglin Xia , Tong Li , Jiali Liu , Xiaorong Qin , Fei Li

{"title":"Efficient degradation of polylactic acid plastics by a novel fungal strain Arthrinium phaeospermum and mechanistic insights","authors":"Zhiying Xu , Jie Yang , You Ge , Zeguo Fang , Luyang Ma , Yujie Duan , Zhenglin Xia , Tong Li , Jiali Liu , Xiaorong Qin , Fei Li","doi":"10.1016/j.jhazmat.2025.140091","DOIUrl":"10.1016/j.jhazmat.2025.140091","url":null,"abstract":"<div><div>Polylactic acid (PLA) plastic, as an eco-friendly alternative to traditional petroleum-based plastics, is increasingly being used worldwide. However, improper handling and management of PLA have led to accumulation in the environment, resulting in pollution. The development of efficient PLA-degrading strains is crucial for reducing pollution. In this study, a fungus (<em>Arthrinium phaeospermum</em> LF2024) is isolated from landfill areas and its degradation characterization of polylactic acid (PLA) plastic is evaluated. The fungal treatment resulted in 42.1 ± 3.7 % mass reduction of PLA in 40 days incubation. The average molecular weight of PLA decreased significantly by 78.0 % after fungal treatment with the increased polydispersity. Degradation characterization revealed the structure of the PLA has been significantly destroyed after treatment by scanning electron microscopy, X-ray diffraction analysis, fourier transform infrared spectroscopy and thermogravimetric analysis and differential scanning calorimeter analysis, leading to a significant increase in the hydrophilicity of the PLA after fungal treatment, while its tensile strength decreased by 85 %. Transcriptomic analysis identified the involvement of Cytochrome P450, alcohol oxidase, lipases and cutinases in the fungal depolymerization of PLA. These findings highlight the potential of microbial methods for efficient PLA degradation, offering a sustainable approach to mitigate environmental impact and promote eco-friendly waste management.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"499 ","pages":"Article 140091"},"PeriodicalIF":11.3,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145255315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

引用次数: 0

Speciation and mobility of metals from vehicular non-exhaust particulate matter 车辆非排气颗粒物质中金属的形态和流动性

IF 11.3 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-10-10 DOI: 10.1016/j.jhazmat.2025.140076

Patricia Córdoba, Patricia Escorcia, Natalia Moreno, Xavier Querol

{"title":"Speciation and mobility of metals from vehicular non-exhaust particulate matter","authors":"Patricia Córdoba, Patricia Escorcia, Natalia Moreno, Xavier Querol","doi":"10.1016/j.jhazmat.2025.140076","DOIUrl":"10.1016/j.jhazmat.2025.140076","url":null,"abstract":"<div><div>Non-exhaust vehicle particulate matter emissions (NEVPM) are gaining prominence in air quality policies due to reduced exhaust emissions and the high metal load from tyre and brake wear. Once deposited, NEVPM components can be mobilised by rainwater, contributing to urban water contamination. This study examines the chemical composition of tyres, brake pads (BPs), and brake dust. Brake pads were thermally treated to simulate braking temperatures, and both treated BPs and brake dust underwent leaching tests to assess metal release and speciation. Tyre formulations showed consistent carbon content and inorganic additives, whereas BPs comprised complex mineral phases with variable Al, Fe, Ti, Cu, and trace metals. Thermal treatment induced mineralogical transformations, including oxidation and formation of metal oxides and sulphates, altering metal mobility and bioavailability. Leaching tests revealed toxic metal releases, particularly Zn, Cu, Pb, Mn, Cr(VI), and As, often exceeding regulatory thresholds. Cr(VI) formation increased post-treatment, underscoring health risks. Brake dust predominantly contained fine PM enriched with Fe oxides, Cu, Zn, Ba, Sb, and other trace elements, highlighting brake wear as a major urban pollution source. These findings emphasise tyre and brake debris as significant metal pollution sources, underscoring the need for stricter regulatory controls and safer material formulations.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"499 ","pages":"Article 140076"},"PeriodicalIF":11.3,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145255367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

引用次数: 0

Integrated assessment of chromium exposure risk from agricultural soils using chemical extraction, in vitro simulation, and mouse bioassay 利用化学萃取、体外模拟和小鼠生物测定对农业土壤中铬暴露风险的综合评估

IF 11.3 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-10-10 DOI: 10.1016/j.jhazmat.2025.140093

Peng Xiao , Yi Zhou , Pengfei Wang , Rui Li , Shimao Xiong , Xiyan Jiang , Yunpeng Li , Yue Wu , Yuntao Yang , Xiaolin Cai , Naiyi Yin , Yanshan Cui

{"title":"Integrated assessment of chromium exposure risk from agricultural soils using chemical extraction, in vitro simulation, and mouse bioassay","authors":"Peng Xiao , Yi Zhou , Pengfei Wang , Rui Li , Shimao Xiong , Xiyan Jiang , Yunpeng Li , Yue Wu , Yuntao Yang , Xiaolin Cai , Naiyi Yin , Yanshan Cui","doi":"10.1016/j.jhazmat.2025.140093","DOIUrl":"10.1016/j.jhazmat.2025.140093","url":null,"abstract":"<div><div>Chromium (Cr) contamination in soil poses significant human health risks due to its toxicity and environmental persistence. In this study, the bioaccessibility of Cr from three aged agricultural soils was assessed using an <em>in vitro</em> (physiologically based extraction test, PBET) method. Simultaneously, single extraction methods (0.43 M HNO<sub>3</sub> and EDTA) and <em>in vivo</em> (mouse model) bioassay were used to assess the health effects of Cr exposure. The results showed that Cr bioaccessibility in the gastric phase ranged from 0.7 % to 21.7 %, and was 1.3–1.8 folds higher in the small intestinal phase. Among the three soils, the weakly alkaline soil exhibited the highest bioaccessibility in both phases. Significant correlations (R<sup>2</sup> = 0.74–0.95) were found between extractable Cr (%) and Cr bioaccessibility, particularly for 0.43 M HNO<sub>3</sub>. <em>In vivo</em> bioassays determined relative bioavailability (based on kidneys or liver), absolute bioavailability, and Cr concentration in tissues, revealing that Cr tended to be excreted rather than accumulated in tissues. Additionally, Cr exposure altered gut microbiota composition, notably increasing <em>Lactobacillaceae</em> while decreasing <em>Muribaculaceae</em>, <em>Prevotellaceae</em> and <em>Rikenellaceae</em>. This study highlighted that single extraction methods could predict <em>in vitro</em> bioaccessibility, which facilitates the rapid and accurate assessment of risks from oral intake of Cr-contaminated soils.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"499 ","pages":"Article 140093"},"PeriodicalIF":11.3,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

引用次数: 0

Accumulation and translocation of antibiotic resistance genes in plants cultivated in hydroponic systems with nitrified biogas slurry 硝化沼液水培系统栽培植物抗生素抗性基因的积累和易位

IF 11.3 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-10-10 DOI: 10.1016/j.jhazmat.2025.140092

Huamei Chen , Jicai Yi , Yafei Li , Xinting Li , Hongli Zhang , Xince Yang , Haitao Zhong , Guangwei Yu , Rongliang Qiu , Yunxiao Chong

{"title":"Accumulation and translocation of antibiotic resistance genes in plants cultivated in hydroponic systems with nitrified biogas slurry","authors":"Huamei Chen , Jicai Yi , Yafei Li , Xinting Li , Hongli Zhang , Xince Yang , Haitao Zhong , Guangwei Yu , Rongliang Qiu , Yunxiao Chong","doi":"10.1016/j.jhazmat.2025.140092","DOIUrl":"10.1016/j.jhazmat.2025.140092","url":null,"abstract":"<div><div>Hydroponic cultivation with biogas slurry supports nutrient recycling but raises biosafety concerns due to the dissemination of antibiotic resistance genes (ARGs). This study established a hydroponic system using nitrified biogas slurry to grow lettuce and cherry radish, and systematically investigated the accumulation of ARGs, mobile genetic elements (MGEs), high-priority human pathogenic bacteria (HPBs), and virulence factors (VFs) in plant tissues. ARGs predominantly accumulated in roots (0.16 ∼ 0.23 copies/16S rRNA), significantly higher than in leaves (0.01 ∼ 0.11 copies/16S rRNA), with <em>sul1</em> consistently enriched in the rhizosphere. Filtration pretreatment significantly reduced ARG and MGE levels in cherry radish roots by 30.78 % and 39.43 %, respectively (<em>p</em> < 0.05). ARGs strongly correlated with MGEs (<em>R²</em> = 0.97, <em>p</em> < 0.0001), indicating horizontal gene transfer as the key dissemination pathway. Co-occurrence network analysis revealed synergistic enrichment of ARGs and MGEs with HPBs and VFs, highlighting <em>Acinetobacter baumannii</em> and <em>Streptococcus pneumoniae</em> as potential core hosts. These findings demonstrate that ARG accumulation and spread in plants are affected by slurry treatment, plant species, and tissue specificity. While filtration mitigates risks, persistent ARGs in roots necessitate further monitoring. This study informs safe reuse strategies for biogas slurry in agriculture.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"499 ","pages":"Article 140092"},"PeriodicalIF":11.3,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145255365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

引用次数: 0

DFT-guided design of biochar-based composites for photocatalytic degradation of fluoroquinolone antibiotics in soil-water systems: Non-targeted metabolomics and structural equation modeling 生物炭基复合材料在土壤-水系统中光催化降解氟喹诺酮类抗生素的dft指导设计：非靶向代谢组学和结构方程建模

IF 11.3 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-10-10 DOI: 10.1016/j.jhazmat.2025.140077

Qilan Huang , Qianru Zhang , Shuwen Zhao , Xiaoming Chen , Huixin Guan , Jianqiao Liu

{"title":"DFT-guided design of biochar-based composites for photocatalytic degradation of fluoroquinolone antibiotics in soil-water systems: Non-targeted metabolomics and structural equation modeling","authors":"Qilan Huang , Qianru Zhang , Shuwen Zhao , Xiaoming Chen , Huixin Guan , Jianqiao Liu","doi":"10.1016/j.jhazmat.2025.140077","DOIUrl":"10.1016/j.jhazmat.2025.140077","url":null,"abstract":"<div><div>The accumulation of fluoroquinolone antibiotics (FQs) in soil-plant systems causes ecotoxicity. Traditional photocatalysts have high electron-hole recombination and unknown degradation product toxicity, making multi-media treatment difficult. This study used DFT-guided Ce/MIL-88b-NH<sub>2</sub>@BC composites to elucidate FQs’ degradation mechanism of six FQs and assessed the effects of the composite on plant metabolism and system repair. By integrating non-targeted metabolomics and structural equation models, the \"material-contaminant-plant\" interaction network was analyzed. Ce/MIL-88b-NH<sub>2</sub>@BC achieved a 98.9 % FQs degradation rate in 90 min under UV–Vis light, dropping slightly to 82.5 % under sunlight. SO<sub>4</sub>·<sup>-</sup> and ·OH were the key radicals driving degradation pathways, such as piperazine ring rupture and decarboxylation, converting the parent FQs into low-toxicity substances. The content of FQs in lettuce leaves was less than or equal to 1 ng g⁻<sup>1</sup>, well below the planetary boundary (PB) of 153.7 μg kg⁻¹ of antibiotic concentrations in agricultural soils worldwide. Ce/MIL-88b-NH<sub>2</sub>@BC reduced plant toxicity by degrading pollutants, inhibiting overactivated stress pathways, restoring normal physiology, and shifting resources to growth-related metabolism. Structural equation models were used to quantify the relationships between key metabolites and plant physiological indices. The whole chain strategy of \"computational design-experimental validation-system modeling\" is pioneered in this study to provide a predictable intelligent solution for antibiotic pollution control.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"499 ","pages":"Article 140077"},"PeriodicalIF":11.3,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

引用次数: 0

Divergent aging pathways in polypropylene microplastics: Ionizing radiation induced oxygen containing functional groups govern pollutant adsorption 聚丙烯微塑料的不同老化途径：电离辐射诱导含氧官能团控制污染物吸附

IF 11.3 1区环境科学与生态学

Journal of Hazardous Materials Pub Date : 2025-10-10 DOI: 10.1016/j.jhazmat.2025.140096

Chen Lei , Mao Chengkai , Wang Jun , Wang Hongyong , Shao Haiyang , Xu Gang

{"title":"Divergent aging pathways in polypropylene microplastics: Ionizing radiation induced oxygen containing functional groups govern pollutant adsorption","authors":"Chen Lei , Mao Chengkai , Wang Jun , Wang Hongyong , Shao Haiyang , Xu Gang","doi":"10.1016/j.jhazmat.2025.140096","DOIUrl":"10.1016/j.jhazmat.2025.140096","url":null,"abstract":"<div><div>Conventional approaches for treating microplastics are often characterized as incomplete and insufficient, rendering it challenging to elucidate the aging processes and mechanisms of microplastics. We employed irradiation technology to establish a highly potent oxidation system that achieves complete aging of polypropylene microplastics within a short timeframe. The results demonstrate that gamma ray exhibits remarkably strong microplastics degradation capability, with a mass loss reaching 70.58 %. Moreover, distinct aging mechanisms were observed under varying irradiation conditions, confirming that the aging process of microplastics is influenced by the oxidative capacity of the system. As the oxidative strength changes, the generation and transformation sequence of oxygen-containing functional groups also varies. Specifically, gamma ray initially forms ether bonds, followed by the generation of carbonyl and hydroxyl groups; in contrast, electron beam induces hydroxyl formation primarily through C–H bond cleavage before the emergence of other functional groups. The experiments further identified carbonyl groups as the principal sites for adsorption and transformation during the aging and adsorption processes. Because gamma ray preferentially produces carbonyl functionalities, it significantly enhances both the adsorption performance and the aging degree of polypropylene microplastics. Our findings provide new insights and foundation for understanding the aging and adsorption behaviors of microplastics.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"499 ","pages":"Article 140096"},"PeriodicalIF":11.3,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145255320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}

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