Journal of hazardous materials最新文献_第3页

Magnesium promotes aluminum tolerance in apple by regulating cell wall remodeling through the MdMYB78-MdHCT/MdXTH2 transcriptional module. 镁通过MdMYB78-MdHCT/MdXTH2转录模块调控苹果细胞壁重塑，从而促进苹果对铝的耐受。

IF 11.3

Journal of hazardous materials Pub Date : 2026-10-23 DOI: 10.1016/j.jhazmat.2026.143997

Mengxue Lyu, Jingquan Liu, Xiuzheng Chen, Haonan Cheng, Honghui Liu, Zhaoxin Zhang, Yingxin Yan, Chunling Liu, Wei Ni, Han Jiang, Zhanling Zhu, Shunfeng Ge, Yuanmao Jiang

{"title":"Magnesium promotes aluminum tolerance in apple by regulating cell wall remodeling through the MdMYB78-MdHCT/MdXTH2 transcriptional module.","authors":"Mengxue Lyu, Jingquan Liu, Xiuzheng Chen, Haonan Cheng, Honghui Liu, Zhaoxin Zhang, Yingxin Yan, Chunling Liu, Wei Ni, Han Jiang, Zhanling Zhu, Shunfeng Ge, Yuanmao Jiang","doi":"10.1016/j.jhazmat.2026.143997","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2026.143997","url":null,"abstract":"Soil acidification-induced aluminum (Al) toxicity severely restricts apple growth and development, threatening apple production and potentially human health. Magnesium (Mg) supplementation can alleviate Al toxicity in plants, but the underlying physiological and molecular mechanisms remain poorly understood. Here, increasing the Mg supply from 0.3 to 3 mM reduced root Al accumulation and increased root dry weight and root length in M26 apple rootstock seedlings exposed to Al stress (1.5 mM). Elemental analysis showed that approximately 60% of the accumulated Al was localized in the root cell wall, with hemicellulose 1 (HC1) exhibiting a greater Al-binding capacity than other cell wall components. Mg supplementation under Al stress reduced the cell wall hemicellulose (HC) and lignin contents, thereby decreasing cell wall thickness and Al accumulation. Integrated transcriptomic and metabolomic analyses identified MdHCT and MdXTH2 as key genes involved in Mg-mediated Al tolerance. Overexpression of MdHCT and MdXTH2 negatively and positively regulate Al tolerance in apple seedlings, respectively, by modulating cell wall modification. Transcription factor analysis identified the MYB family member MdMYB78, which directly binds the ACCAAC motif in promoters of MdHCT and MdXTH2, activating and repressing their transcription, respectively. Transgenic validation results indicate that MdMYB78 negatively regulates Al tolerance in apple seedlings. Collectively, these findings establish MdMYB78 as a key regulator of Mg-enhanced Al tolerance in apple seedlings by coordinately regulating MdHCT and MdXTH2 to remodel the root cell wall and alter its Al-binding capacity. Mg-mediated cell wall remodeling provides a potential strategy for mitigating Al toxicity in acidified soils.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"518 ","pages":"143997"},"PeriodicalIF":11.3,"publicationDate":"2026-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149291364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Organic nitrogen substitution stabilizes antimony in paddy bulk soil but mobilizes it in the rhizosphere. 有机氮替代在水稻块土中稳定锑，但在根际调动锑。

IF 11.3

Journal of hazardous materials Pub Date : 2026-10-23 DOI: 10.1016/j.jhazmat.2026.143984

Yonglin Chen, Wentao Yang, Hongyan Liu, Yingxue Yu, Hansong Xiao, Jian Zhang, Liyu Yang, Qihang Li, Jiangxun Huang, Pan Wu

{"title":"Organic nitrogen substitution stabilizes antimony in paddy bulk soil but mobilizes it in the rhizosphere.","authors":"Yonglin Chen, Wentao Yang, Hongyan Liu, Yingxue Yu, Hansong Xiao, Jian Zhang, Liyu Yang, Qihang Li, Jiangxun Huang, Pan Wu","doi":"10.1016/j.jhazmat.2026.143984","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2026.143984","url":null,"abstract":"Rhizosphere processes strongly regulate antimony (Sb) bioavailability and root uptake in paddy soils, but whether organic nitrogen substitution induces divergent Sb transformation pathways across rhizosphere remains unclear. Here, by separating bulk soil, rhizosphere soil, and root iron plaque, we identified a soil-rhizosphere-plaque continuum that determines Sb mobilization, retention, and root uptake under organic nitrogen substitution. Organic nitrogen substitution exerted contrasting, rhizosphere-dependent effects on bioavailable Sb fractions, including non-specifically adsorbed Sb and specifically adsorbed Sb. These fractions decreased in bulk soil by 5.07-26.79% via humic acid complexation and sulfide precipitation, but increased in the rhizosphere by up to 31.45% through competitive adsorption by root-derived low-molecular-weight organic acids, phosphate, and dissolved organic matter. At the root surface, organic nitrogen substitution markedly promoted iron plaque formation by 32.41-75.63%, with amorphous iron (hydr)oxides dominating Sb retention and accounting for 86.31-89.08% of plaque-associated Sb. Iron plaque significantly reduced shoot Sb content by intercepting rhizosphere-mobilized Sb, leading to a 24.48-41.02% decrease in shoot Sb content. Finally, we propose a compartment-specific mechanism of Sb fate in which organic nitrogen substitution drives bulk-soil stabilization, rhizosphere mobilization, and root-surface interception of Sb, supporting organic nitrogen management as a strategy to mitigate rice Sb accumulation and sustain rice growth. SYNOPSIS: By distinguishing the rhizosphere from bulk soil, this study reveals that organic nitrogen substitution creates opposing effects on antimony bioavailability across soil compartments, while root iron plaque limits antimony uptake by rice. These findings advance our understanding of antimony cycling in paddy soils and inform safer rice production strategies.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"518 ","pages":"143984"},"PeriodicalIF":11.3,"publicationDate":"2026-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149279129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tissue-specific microplastic burdens in humans: An intra-individual mapping of 18 tissue types. 人类组织特异性微塑性负担：18种组织类型的个体内映射。

IF 11.3

Journal of hazardous materials Pub Date : 2026-10-23 DOI: 10.1016/j.jhazmat.2026.144001

Zhiyong Liu, Riga Wu, Chao Zhang, Ran Li, Jiajun Liu, Junyu Zhu, Enlin Wu, Jiamin Xie, Chao Liu, Xiaoshan Liu, Hongyu Sun

{"title":"Tissue-specific microplastic burdens in humans: An intra-individual mapping of 18 tissue types.","authors":"Zhiyong Liu, Riga Wu, Chao Zhang, Ran Li, Jiajun Liu, Junyu Zhu, Enlin Wu, Jiamin Xie, Chao Liu, Xiaoshan Liu, Hongyu Sun","doi":"10.1016/j.jhazmat.2026.144001","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2026.144001","url":null,"abstract":"Microplastics (MPs) are ubiquitous environmental contaminants, yet their tissue-specific distribution within individuals remains poorly characterized. We analyzed 165 samples from 18 tissue types collected from ten donors, including two newborns, using pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) and Laser Direct Infrared (LDIR) imaging for chemical quantification and morphological characterization, respectively. MPs were detected in all donors and tissues, with substantial inter-individual and tissue-specific variation. MP burdens in the two neonatal donors fell within the range observed across the adult donors. MP accumulation was tissue-specific, with lipid-rich tissues (adipose and brain) and highly perfused endocrine/metabolic organs (adrenal, liver, thyroid) harboring the highest burdens, whereas blood contained the lowest MP levels. Polyethylene (PE), polyamide 66 (PA66), and polyvinyl chloride (PVC) accounted for > 90% of the 11 MP types quantified by Py-GC/MS. LDIR analysis showed that MPs were predominantly small (66.06% within 20-40 μm) and moderately rounded, although particles > 150 μm were also detected across tissues. These findings provide a systematic map of human MP distribution, demonstrating heterogeneous tissue accumulation and providing a understanding for the absorption, distribution, metabolism, and excretion (ADME) of MPs and associated their health risks.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"518 ","pages":"144001"},"PeriodicalIF":11.3,"publicationDate":"2026-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149279137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Facilitating the sequential conversion of *NO_x intermediates by tandem catalyst and electrolyte engineering for high ammonia selectivity from electrochemical nitrate reduction. 通过串联催化剂和电解质工程促进NOx中间体的顺序转化，实现电化学硝酸盐还原的高氨选择性。

IF 11.3

Journal of hazardous materials Pub Date : 2026-10-23 DOI: 10.1016/j.jhazmat.2026.144016

Kemeng Zhang, Fang Li, Qilong Guo, Changsen Zhang, Qixiang Xu, Yunfei He, Panpan Liu

{"title":"Facilitating the sequential conversion of *NOx intermediates by tandem catalyst and electrolyte engineering for high ammonia selectivity from electrochemical nitrate reduction.","authors":"Kemeng Zhang, Fang Li, Qilong Guo, Changsen Zhang, Qixiang Xu, Yunfei He, Panpan Liu","doi":"10.1016/j.jhazmat.2026.144016","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2026.144016","url":null,"abstract":"Efficient electrochemical nitrate reduction to ammonia (eNO3RA) requires the continuous conversion of surface-bound nitrate reduction intermediates, especially at low nitrate concentrations. We construct a tandem catalyst by electrodeposition of NiOx on the CuxO nanowires to promote the sequential conversion of *NO2 to *NO, and then a superior performance with 95.89% nitrate conversion and 95.83% ammonia selectivity is achieved for 1 mM nitrate. In situ Raman spectroscopy and density functional theory calculations confirm that the NiOx promotes the conversion of *NO2 to *NO by lowering the corresponding free energy barrier from 0.85 to 0.59 eV. Additionally, the enrichment of potassium ions in the electric double layer can alleviate the electrostatic repulsion at the electrode-electrolyte interface, which facilitates the accumulation of nitrate and stimulates the eNO3RA at a low concentration of nitrate. Our results provide a deep insight into the eNO3RA pathways at low concentrations and may facilitate their application towards dilute nitrate waste streams.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"518 ","pages":"144016"},"PeriodicalIF":11.3,"publicationDate":"2026-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149291401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fluorinated donor-acceptor polymers blended with solid-state ionic liquids for highly sensitive and selective detection of volatile organic compounds. 氟化供体-受体聚合物与固态离子液体混合，用于挥发性有机化合物的高灵敏度和选择性检测。

IF 11.3

Journal of hazardous materials Pub Date : 2026-10-23 DOI: 10.1016/j.jhazmat.2026.144012

Guanjie Wang, Eun Soo Shim, Ji Hyeon Lee, Changhoon Lee, Hyungju Ahn, Chandran Balamurugan, Zhongwu Wang, Liqiang Li, Hyeonryul Lee, Junyeong Sung, Sungmin Lee, Ji Hoon Shim, Jea Woong Jo, Sooncheol Kwon

{"title":"Fluorinated donor-acceptor polymers blended with solid-state ionic liquids for highly sensitive and selective detection of volatile organic compounds.","authors":"Guanjie Wang, Eun Soo Shim, Ji Hyeon Lee, Changhoon Lee, Hyungju Ahn, Chandran Balamurugan, Zhongwu Wang, Liqiang Li, Hyeonryul Lee, Junyeong Sung, Sungmin Lee, Ji Hoon Shim, Jea Woong Jo, Sooncheol Kwon","doi":"10.1016/j.jhazmat.2026.144012","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2026.144012","url":null,"abstract":"Solid-state ionic liquids (SILs), comprising cations with long-alkyl chains and anions containing fluorine atoms, have become essential for achieving electrochemical doping of π-conjugated polymers (π-CPs), as the formation of polarons is stabilized by the presence of fluorinated anions under applied bias. Nevertheless, phase separation on the scale of a few hundred nanometers between the polymers and SILs limits efficient doping and hinders intermolecular charge transport. In this study, we present a molecular design approach that incorporates electron-withdrawing fluorine atoms into the isoindigo unit of benzodithiophene-isoindigo (BI) copolymers. This targeted fluorination optimizes the surface energy of the polymer, facilitating the development of well-organized fibrillar nanostructures with improved order and connectivity when mixed with SILs. The optimized morphology enhances the migration of fluorinated anions from the SIL, which in turn promotes efficient electrochemical doping within the fluorinated BI matrix. Additionally, the electrochemical doping process is modulated by alcohol-based gases, yielding chemiresistors with outstanding gas selectivity. Of particular note, the fluorinated BI:SIL chemiresistor demonstrated an impressive response to 1-butanol, reaching a resistance change (ΔR/R₀) of 85.28% at 500 ppm and a limit of detection (LOD) of 513.6 ppb. These results underscore the potential of fluorinated π-CP/SIL blends to serve as adaptable platforms for scalable, selective, and environmentally sustainable organic sensing applications.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"518 ","pages":"144012"},"PeriodicalIF":11.3,"publicationDate":"2026-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149291435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

From waste to resource: A plasma-flocculation synergistic strategy for flonicamid removal and upcycling of residues into electrocatalysts. 从废物到资源：等离子体-絮凝协同策略去除氟硝酰胺并将残留物升级为电催化剂。

IF 11.3

Journal of hazardous materials Pub Date : 2026-10-23 DOI: 10.1016/j.jhazmat.2026.144013

Shaowen Ji, Hongchi Chen, Fang Lu, Yan Yu, Yuxiang Li, Ting An, Denghao Wang, Chao Feng, Yeldana Bakhytzhan, Haojie Li, Kun Yang, Bin Dai, Zongyuan Wang

{"title":"From waste to resource: A plasma-flocculation synergistic strategy for flonicamid removal and upcycling of residues into electrocatalysts.","authors":"Shaowen Ji, Hongchi Chen, Fang Lu, Yan Yu, Yuxiang Li, Ting An, Denghao Wang, Chao Feng, Yeldana Bakhytzhan, Haojie Li, Kun Yang, Bin Dai, Zongyuan Wang","doi":"10.1016/j.jhazmat.2026.144013","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2026.144013","url":null,"abstract":"Treating fluorinated pesticide wastewater poses dual challenges: efficient decontamination and sustainable management of the generated solid waste. Here, we propose a plasma-assisted flocculation system that simultaneously removes flonicamid (FLO) and upcycles the Cu-containing flocculation residue into a high-performance electrocatalyst for the nitrate reduction reaction (NO3RR). By leveraging polyacrylamide (PAM) to promote pollutant-associated aggregation and create localized reaction domains, this strategy enhances interactions between FLO and plasma-generated reactive species, achieving > 95% FLO removal. Mechanistic analyses support a synergistic coupling between PAM-mediated aggregation and plasma oxidation. The recovered solid residue is directly converted into a CuOx-C catalyst rich in mixed-valence Cu0/Cu+/Cu2+ sites and oxygen vacancies. This catalyst delivers an exceptional NH3 yield of 44.53 mg·h-1·mgcat-1 and a Faradaic efficiency of 92.19% at -0.6 V vs. RHE. Residual liquid intermediates are deeply mineralized via anodic oxidation. In-situ spectroscopies further reveal a sequential deoxygenation-hydrogenation pathway for NO3RR, and a 2500 mL continuous-flow system further demonstrates the feasibility of operation at an increased treatment volume. This work integrates pollutant degradation with resource recovery, providing a sustainable \"waste-to-catalyst\" paradigm for pesticide wastewater valorization.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"518 ","pages":"144013"},"PeriodicalIF":11.3,"publicationDate":"2026-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149291349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-mode colorimetric and photothermal detection of thiram using a smartphone-integrated platform with an Fe-doped ZIF-8-derived nanozyme. 利用智能手机集成平台对铁掺杂zif -8衍生纳米酶进行thiram双模比色和光热检测。

IF 11.3

Journal of hazardous materials Pub Date : 2026-10-23 DOI: 10.1016/j.jhazmat.2026.144015

Haowen Qin, Ye Li, Nan Liu, Hongyun Lu, Jia Liu, Jian Xiao, Ying Wu, Nan Yang, Yan Zhang

{"title":"Dual-mode colorimetric and photothermal detection of thiram using a smartphone-integrated platform with an Fe-doped ZIF-8-derived nanozyme.","authors":"Haowen Qin, Ye Li, Nan Liu, Hongyun Lu, Jia Liu, Jian Xiao, Ying Wu, Nan Yang, Yan Zhang","doi":"10.1016/j.jhazmat.2026.144015","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2026.144015","url":null,"abstract":"The extensive use of the fungicide thiram in agriculture poses health risks, necessitating sensitive on-site monitoring. Conventional detection methods often rely on costly and unstable biological recognition elements, while many nanozyme-based strategies still depend on complex cascade reactions involving natural enzymes. Herein, we report a robust, enzyme-free dual-mode sensing platform based on Fe-doped ZIF-8 derived nanozyme (Zn-NC/Fe). Through systematic optimization of iron doping, the optimized Zn-NC/Fe5% nanozyme exhibits superior peroxidase-like activity with low Michaelis constants, attributed to abundant Fe-Nx active sites. Thiram specifically passivates these sites via Fe-S coordination, enabling direct inhibition-based detection. Using TMB as substrate, we constructed a colorimetric sensor and a complementary photothermal sensor based on oxTMB's near-infrared light-to-heat conversion. To enable field use, the nanozyme was encapsulated in sodium alginate hydrogel microspheres and integrated with smartphone-assisted RGB readout, achieving an LOD of 11.25 μM and linear range from 20 to 1000 μM. The platform was successfully validated in environmental water and fruit juice samples with recoveries of 95.6-108.2%. Elliptic Joint Confidence Region analysis further confirmed the statistical accuracy of the three modes. This work provides a stable, cost-effective, and user-friendly toolkit for thiram monitoring, advancing food safety applications.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"518 ","pages":"144015"},"PeriodicalIF":11.3,"publicationDate":"2026-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149291417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Environmental effects of biodegradable microplastics in cadmium-contaminated soil and their regulation on cadmium bioavailability. 镉污染土壤中可生物降解微塑料的环境效应及其对镉生物有效性的调控

IF 11.3

Journal of hazardous materials Pub Date : 2026-10-19 DOI: 10.1016/j.jhazmat.2026.143946

Xu Qin, Qingqing Huang, Lijie Zhao, Yuebing Sun

{"title":"Environmental effects of biodegradable microplastics in cadmium-contaminated soil and their regulation on cadmium bioavailability.","authors":"Xu Qin, Qingqing Huang, Lijie Zhao, Yuebing Sun","doi":"10.1016/j.jhazmat.2026.143946","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2026.143946","url":null,"abstract":"Biodegradable microplastics (BMPs) residues in soil are becoming increasingly prevalent; however, their effects on cadmium (Cd) bioavailability and toxicity in contaminated soils remain poorly understood. A pot experiment was conducted to investigate the effects of four typical BMPs-polylactic acid (PLA), poly(butylene adipate-co-terephthalate) (PBAT), polybutylene succinate (PBS), and polycaprolactone (PCL) on soil physicochemical properties, Cd speciation, pak choi growth, antioxidant responses, and rhizobacterial community structure in Cd-contaminated acidic soil. Results demonstrated that BMPs regulated Cd behavior through dual abiotic (pH, zeta potential, electrical conductivity) and biotic (microbial community restructuring) pathways, with effects highly dependent on BMPs type. PBAT elevated soil pH, increased negative zeta potential, reduced shoot Cd accumulation, alleviated oxidative stress, and enhanced bacterial diversity with enrichment of Cd-immobilising taxa. Conversely, PLA, PBS, and PCL decreased soil pH, increased Cd availability and plant Cd uptake, aggravated lipid peroxidation and leaf tissue damage, and inhibited antioxidant enzyme activity. PLA broadly suppressed soil enzyme activity, whereas PCL reduced bacterial richness and enriched Cd-mobilising taxa. These findings demonstrate that BMPs exert species-specific regulation on Cd fate through combined modifications of soil physicochemical properties and reshaping of functional microbial communities, highlighting the need for risk differentiation when introducing biodegradable plastics into metal-contaminated farmlands.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"518 ","pages":"143946"},"PeriodicalIF":11.3,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149225679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pesticide leaching in sandy and loamy soil-contrasting impact of polyethylene microplastic pollution and freeze-thaw events. 沙质和壤土农药淋溶——聚乙烯微塑料污染与冻融事件的对比影响

IF 11.3

Journal of hazardous materials Pub Date : 2026-10-19 DOI: 10.1016/j.jhazmat.2026.143960

Siqi Wu, Alexander Böhme, Andreas Schäffer, Zhongli Chen, Annika Jahnke

{"title":"Pesticide leaching in sandy and loamy soil-contrasting impact of polyethylene microplastic pollution and freeze-thaw events.","authors":"Siqi Wu, Alexander Böhme, Andreas Schäffer, Zhongli Chen, Annika Jahnke","doi":"10.1016/j.jhazmat.2026.143960","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2026.143960","url":null,"abstract":"Microplastics (MPs) can alter pesticide migration in soils by modifying soil structure and influencing pesticide sorption and transport. Freeze-thaw cycles (FTCs), which are common in temperate regions, naturally change soil structure and may influence the environmental fate of both MPs and pesticides. We investigated a mixture of 20 pesticides with a broad range of physical-chemical properties in a factorial column experiment combining sandy and loamy soils, room-temperature and FTC treatments, and the presence or absence of 1% (w/w) polyethylene (PE) particles (63-100 μm). Transport was characterized by the pore volumes required to reach 5% and 50% of the nominal influent concentration (BV5 and BV50). FTCs reduced mean breakthrough volumes by approximately 15-35% in sandy soil and 40-85% in loamy soil, whereas PE addition generally increased breakthrough volumes by approximately 7-17% across treatments. Loamy soil showed greater pesticide retention at room temperature and a 1-2.5-fold stronger response to FTCs than sandy soil. Associations with organic-carbon partition coefficients (KOC) and water solubility (Sw) indicated compound-dependent transport. Changes in soil physical properties and complementary experiments with selected triazines suggested possible physical and partitioning-related contributions, particularly in loamy soil, consistent with FTC-induced changes in soil structure and flow pathways.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"518 ","pages":"143960"},"PeriodicalIF":11.3,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149229726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Oxidant-free aqueous arsenic removal over few-layer Ti₃C₂T_x MXene via coupled As(III) photooxidation and As(V) adsorption. 通过耦合As（III）光氧化和As(V)吸附在Ti3C2Tx MXene上的无氧化水砷去除。

IF 11.3

Journal of hazardous materials Pub Date : 2026-10-19 DOI: 10.1016/j.jhazmat.2026.143961

Shuhe Chen, Weijian Yu, Tao Liu, Yi Liu, Zuotao Liu, Siyuan Yang, Xin Cai, Qiongzhi Gao, Qingyou Liu, Zhigang Chen, Shengsen Zhang

{"title":"Oxidant-free aqueous arsenic removal over few-layer Ti3C2Tx MXene via coupled As(III) photooxidation and As(V) adsorption.","authors":"Shuhe Chen, Weijian Yu, Tao Liu, Yi Liu, Zuotao Liu, Siyuan Yang, Xin Cai, Qiongzhi Gao, Qingyou Liu, Zhigang Chen, Shengsen Zhang","doi":"10.1016/j.jhazmat.2026.143961","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2026.143961","url":null,"abstract":"Coupling arsenite oxidation with arsenate capture may reduce the need for separately dosed oxidants in water treatment, but the roles of the active phase and adsorption sites require careful evaluation. Here, Ti3C2Tx-based nanosheets were prepared by NH4F-assisted electrochemical etching and tetramethylammonium hydroxide (TMAH)-mediated delamination without directly adding HF. The material exhibited a BET surface area of 80.37 m2/g and expanded basal spacing. Batch experiments under simulated solar irradiation showed light-dependent arsenic transformation and As(V) uptake without an added chemical oxidant. Under simulated solar irradiation, the material achieved efficient oxidant-free arsenic removal through coupled As(III) photooxidation and As(V) adsorption, enabling nearly complete oxidation of 10 mg/L As(III) within 3 h and a high maximum As(V) adsorption capacity of 349.1 mg/g. The system also showed good environmental adaptability and reusability, maintaining over 85% arsenic removal efficiency across pH 3-9 in the presence of common coexisting ions, with negligible performance decay after four regeneration cycles. Mechanistic analysis reveals that the enlarged interlayer spacing and exposed terminal groups provide abundant binding sites for As(V), while the ultrathin Few-Layer structure and favorable interfacial charge transfer promote As(III) photooxidation. This work demonstrates an oxidant-free MXene-based strategy for efficient remediation of arsenic-contaminated water.","PeriodicalId":94082,"journal":{"name":"Journal of hazardous materials","volume":"518 ","pages":"143961"},"PeriodicalIF":11.3,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149225715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0