Pub Date : 2026-01-14DOI: 10.1016/j.jhazmat.2026.141146
Kailun Yu , Wenchao Yu , Zhaoyong Bian , Hui Wang
Electrocatalytic coreduction of CO2 and nitrate ions (NO3-) enables the directional transformation of greenhouse gases and nitrogen-containing pollutants into urea, providing an innovative approach to traditional urea synthesis and facilitating carbon reduction and resource recycling in line with sustainability. However, low urea yield, poor selectivity, and ambiguous mechanisms restrict its application and development. In this study, a synergistic catalytic system composed of p-block and d-block elements was constructed, and Bi2O3-In2O3/TiO2 electrocatalytic materials were designed and prepared. By rationally regulating the molar ratio of Bi to In, the catalytic material achieved a urea production rate of 37.78 μmol h−1 cm−2 and a urea Faraday efficiency (FEUrea) of 40.79 % at −0.90 V vs. RHE. Meanwhile, Bi2O3-In2O3/TiO2 exhibited a significant inhibitory effect on the formation of toxic and harmful by-products NO2- and N2H4. Mechanistic studies revealed that *CO2 and *NO2 undergo spontaneous adsorption and stabilization on the surface of In2O3, and the subsequent hydrogenation step is difficult to proceed, which promoted the early C-N coupling to form the key intermediate *CO2NO2. Additionally, Bi2O3-In2O3/TiO2 reduced the high reaction energy barrier for the dehydroxylation of *COOHNH2, facilitating the continuous and stable production of urea on the catalytic surface. This research not only presents a practical and potential solution for efficient electrocatalytic urea synthesis but also provides theoretical support and direction for the design and performance improvement of subsequent catalysts.
CO2与硝酸根离子（NO3-）的电催化共还原使温室气体和含氮污染物定向转化为尿素，为传统的尿素合成提供了创新途径，促进了碳减排和资源循环，符合可持续性。但尿素收率低、选择性差、机理不明确等缺点制约了其应用和发展。本研究构建了由p-嵌段和d-嵌段元素组成的协同催化体系，设计并制备了Bi2O3-In2O3/TiO2电催化材料。通过合理调节Bi与In的摩尔比，该催化材料在- 0.90 V / RHE下的尿素产率为37.78 μmol h−1 cm−2，尿素法拉第效率（FEUrea）为40.79 %。同时，Bi2O3-In2O3/TiO2对有毒有害副产物NO2-和N2H4的生成有明显的抑制作用。机理研究表明，*CO2和*NO2在In2O3表面自发吸附稳定，后续加氢步骤难以进行，促进了早期C-N偶联形成关键中间体*CO2NO2。此外，Bi2O3-In2O3/TiO2降低了*COOHNH2脱羟基的高反应能垒，有利于在催化表面连续稳定地生成尿素。本研究不仅为高效电催化尿素合成提供了可行的解决方案，也为后续催化剂的设计和性能改进提供了理论支持和方向。
{"title":"Promoting electrocatalytic CO2 and nitrate coreduction for urea synthesis by co-loading TiO2 with In2O3 and Bi2O3","authors":"Kailun Yu , Wenchao Yu , Zhaoyong Bian , Hui Wang","doi":"10.1016/j.jhazmat.2026.141146","DOIUrl":"10.1016/j.jhazmat.2026.141146","url":null,"abstract":"<div><div>Electrocatalytic coreduction of CO<sub>2</sub> and nitrate ions (NO<sub>3</sub><sup>-</sup>) enables the directional transformation of greenhouse gases and nitrogen-containing pollutants into urea, providing an innovative approach to traditional urea synthesis and facilitating carbon reduction and resource recycling in line with sustainability. However, low urea yield, poor selectivity, and ambiguous mechanisms restrict its application and development. In this study, a synergistic catalytic system composed of p-block and d-block elements was constructed, and Bi<sub>2</sub>O<sub>3</sub>-In<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub> electrocatalytic materials were designed and prepared. By rationally regulating the molar ratio of Bi to In, the catalytic material achieved a urea production rate of 37.78 μmol h<sup>−1</sup> cm<sup>−2</sup> and a urea Faraday efficiency (FE<sub>Urea</sub>) of 40.79 % at −0.90 V vs. RHE. Meanwhile, Bi<sub>2</sub>O<sub>3</sub>-In<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub> exhibited a significant inhibitory effect on the formation of toxic and harmful by-products NO<sub>2</sub><sup>-</sup> and N<sub>2</sub>H<sub>4</sub>. Mechanistic studies revealed that *CO<sub>2</sub> and *NO<sub>2</sub> undergo spontaneous adsorption and stabilization on the surface of In<sub>2</sub>O<sub>3</sub>, and the subsequent hydrogenation step is difficult to proceed, which promoted the early C-N coupling to form the key intermediate *CO<sub>2</sub>NO<sub>2</sub>. Additionally, Bi<sub>2</sub>O<sub>3</sub>-In<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub> reduced the high reaction energy barrier for the dehydroxylation of *COOHNH<sub>2</sub>, facilitating the continuous and stable production of urea on the catalytic surface. This research not only presents a practical and potential solution for efficient electrocatalytic urea synthesis but also provides theoretical support and direction for the design and performance improvement of subsequent catalysts.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"503 ","pages":"Article 141146"},"PeriodicalIF":11.3,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145962752","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}
Pub Date : 2026-01-14DOI: 10.1016/j.jhazmat.2026.141147
Huanhuan Yang , Boqiang Gao , Zihao Wang , Jingzhen Wang , Dangling Hua , Sihui Zhan , Hanzhong Jia , Xiaoxu Zheng , Shengjun Xu , Yunho Lee , Shuanglong Ma
Microplastics derived dissolved organic matter (MPDOM) undergoes coupled processes of phototransformation in surface water and adsorption on sediments in hydrological cycle. However, the role those plastic additives play during the interaction between phototransformation and adsorption of MPDOM remains unclear. Herein, MPDOM from polystyrene (PS) without additives, expanded polystyrene (EPS) with phenolic antioxidants, and clear polystyrene (CPS) with S-containing surfactants were selected for exploring the effect of additives-mediated MPDOM phototransformation on its adsorption on ferrihydrite. Carboxyl structure of tannins-like components determined the adsorption capacity of MPDOM. PSDOM was phototransformed into carboxyl-depleted structure under the attack of photogenerated 3DOM* and 1O2, resulting in a 49.9 %-62.3 % decrease in adsorption on Fh. However, the adsorption of EPSDOM and CPSDOM decreased by only 6.0 %-27.7 % and 3.0 %-16.4 % after irradiation, respectively, attributing to additive-mediated photoprotection and photocombination mechanisms. Specifically, phenolic/quinone moieties of EPSDOM additives can photoprotect carboxyl of intrinsic molecule from phototransformation, while alkyl sulfonates structures of CPSDOM additives can photocombine with its intrinsic molecule to form aromatic CHOS and carboxyl-rich CHO components. The enhanced ecotoxicity of additive phototransformation products and their reduced adsorption capacity on ferrihydrite significantly increased environmental risk of MPDOM. This study provides new insights about the coupling behavior of photochemical transformation and adsorption deposition of MPDOM affecting by additives.
{"title":"Phototransformation of microplastic derived dissolved organic matter reduces its adsorption capacity on ferrihydrite: Effects of additive types","authors":"Huanhuan Yang , Boqiang Gao , Zihao Wang , Jingzhen Wang , Dangling Hua , Sihui Zhan , Hanzhong Jia , Xiaoxu Zheng , Shengjun Xu , Yunho Lee , Shuanglong Ma","doi":"10.1016/j.jhazmat.2026.141147","DOIUrl":"10.1016/j.jhazmat.2026.141147","url":null,"abstract":"<div><div>Microplastics derived dissolved organic matter (MPDOM) undergoes coupled processes of phototransformation in surface water and adsorption on sediments in hydrological cycle. However, the role those plastic additives play during the interaction between phototransformation and adsorption of MPDOM remains unclear. Herein, MPDOM from polystyrene (PS) without additives, expanded polystyrene (EPS) with phenolic antioxidants, and clear polystyrene (CPS) with S-containing surfactants were selected for exploring the effect of additives-mediated MPDOM phototransformation on its adsorption on ferrihydrite. Carboxyl structure of tannins-like components determined the adsorption capacity of MPDOM. PSDOM was phototransformed into carboxyl-depleted structure under the attack of photogenerated <sup>3</sup>DOM* and <sup>1</sup>O<sub>2</sub>, resulting in a 49.9 %-62.3 % decrease in adsorption on Fh. However, the adsorption of EPSDOM and CPSDOM decreased by only 6.0 %-27.7 % and 3.0 %-16.4 % after irradiation, respectively, attributing to additive-mediated photoprotection and photocombination mechanisms. Specifically, phenolic/quinone moieties of EPSDOM additives can photoprotect carboxyl of intrinsic molecule from phototransformation, while alkyl sulfonates structures of CPSDOM additives can photocombine with its intrinsic molecule to form aromatic CHOS and carboxyl-rich CHO components. The enhanced ecotoxicity of additive phototransformation products and their reduced adsorption capacity on ferrihydrite significantly increased environmental risk of MPDOM. This study provides new insights about the coupling behavior of photochemical transformation and adsorption deposition of MPDOM affecting by additives.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"503 ","pages":"Article 141147"},"PeriodicalIF":11.3,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145961914","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}
Pub Date : 2026-01-14DOI: 10.1016/j.jhazmat.2026.141155
Wei Du , Ruijing Hu , Nan Fu , Min Wu , Yang Liu , Yuanchen Chen , Guofeng Shen , Nan Lin , Bo Pan , Shu Tao
Organic contaminants of emerging concern (OCECs) in indoor environments are receiving increasing attention due to their widespread occurrence and potential health risks. Indoor dust, as a key medium through which humans are exposed to OCECs, has become a focal point in global environmental health research. This review concentrates on eight representative categories of OCECs found in indoor dust worldwide: per- and polyfluoroalkyl substances (PFAS), alternative halogenated flame retardants (AHFRs), organophosphate esters (OPEs), chlorinated paraffins (CPs), phthalate alternatives (PAEAs), synthetic antioxidants (SAOs), bisphenol A alternatives (BPAAs), and microplastics (MPs). A variety of OCEC classes are widely present in indoor dust worldwide. Many legacy pollutants (long-chain PFAS) persist, while concentrations of replacement chemicals have increased, reflecting changing use patterns. Monitoring has been concentrated in North America (NA), Europe (EU), and Asia (AS), especially China, whereas Africa (AF) and South America (SA) are largely understudied. Contamination also varies by indoor environment: residential dust is typically enriched in CPs, MPs, and PFAS (from household products); offices, with dense electronics and flame-retardant materials, have especially high levels of AHFRs and OPEs; and educational environments present moderate levels of various OCECs but pose unique risks because of high child exposure. Indoor dust globally serves as a reservoir of OCECs, reflecting our material use and regulations. The pervasive contamination highlights the need for expanded monitoring, particularly in undersampled regions and environments. Understanding indoor OCEC sources and distributions is critical for assessing human exposure, especially for vulnerable groups (infants, children, pregnant women), who have greater dust contact.
{"title":"Occurrence and sources of organic contaminants of emerging concern in indoor dust: A global perspective","authors":"Wei Du , Ruijing Hu , Nan Fu , Min Wu , Yang Liu , Yuanchen Chen , Guofeng Shen , Nan Lin , Bo Pan , Shu Tao","doi":"10.1016/j.jhazmat.2026.141155","DOIUrl":"10.1016/j.jhazmat.2026.141155","url":null,"abstract":"<div><div>Organic contaminants of emerging concern (OCECs) in indoor environments are receiving increasing attention due to their widespread occurrence and potential health risks. Indoor dust, as a key medium through which humans are exposed to OCECs, has become a focal point in global environmental health research. This review concentrates on eight representative categories of OCECs found in indoor dust worldwide: per- and polyfluoroalkyl substances (PFAS), alternative halogenated flame retardants (AHFRs), organophosphate esters (OPEs), chlorinated paraffins (CPs), phthalate alternatives (PAEAs), synthetic antioxidants (SAOs), bisphenol A alternatives (BPAAs), and microplastics (MPs). A variety of OCEC classes are widely present in indoor dust worldwide. Many legacy pollutants (long-chain PFAS) persist, while concentrations of replacement chemicals have increased, reflecting changing use patterns. Monitoring has been concentrated in North America (NA), Europe (EU), and Asia (AS), especially China, whereas Africa (AF) and South America (SA) are largely understudied. Contamination also varies by indoor environment: residential dust is typically enriched in CPs, MPs, and PFAS (from household products); offices, with dense electronics and flame-retardant materials, have especially high levels of AHFRs and OPEs; and educational environments present moderate levels of various OCECs but pose unique risks because of high child exposure. Indoor dust globally serves as a reservoir of OCECs, reflecting our material use and regulations. The pervasive contamination highlights the need for expanded monitoring, particularly in undersampled regions and environments. Understanding indoor OCEC sources and distributions is critical for assessing human exposure, especially for vulnerable groups (infants, children, pregnant women), who have greater dust contact.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"503 ","pages":"Article 141155"},"PeriodicalIF":11.3,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145961915","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}
Pub Date : 2026-01-14DOI: 10.1016/j.jhazmat.2026.141145
Shuo Wang , Xinjie Gu , Xilin Geng , Ziyi Zhao , Lili Tian , Xiaolin Du , Yaran Song , Ningyi Chen , Keju Sun , Qingrui Zhang
Reducing heavy metals to trace levels in actual complex industrial wastewater remains a major challenge due to high salinity, organic interferences, and multi-metal competition. Ionic liquids (ILs) are promising for metal remediation but suffer from limited active site accessibility and slow diffusion in conventional immobilized nanocomposites. Here, a scalable fibrillation strategy is developed based on precise molecular spatial confinement self-assembly, wherein lacunary Keggin-type SiW11 clusters integrate with amphiphilic cations to yield one-dimensional IL nanofibrils. These IL nanofibrils feature ultrathin diameters (< 5 nm), high aspect ratios (> 103), and strong negative zeta potentials (< −30 mV), enabling full active site exposure and rapid heavy metal transport. As a result, they achieve > 96.8 % removal efficiency under high salinity and multi-metal competition, with a Pb(II) distribution coefficient (Kd) of 28,877.5 mL/g—over 490-fold higher than commercial sulfonated polystyrene resins. Ultrafast kinetics were observed, with pseudo-second-order rate constants (k2) 6–10 times greater than those of supported ILs. In continuous-flow tests across five real industrial sites, the nanofibrils demonstrated purification capacities of 3678–6940 L/kg, consistently reducing effluent Pb(II) below 0.1 mg/L (GB21900–2008, China). Charged IL nanofibrils can be easily regenerated with negligible performance loss and at minimal cost, thereby constituting a robust and scalable platform for the deep extraction of heavy metals from real complex effluents. More broadly, this fibrillar IL construction strategy unlocks programmable interfacial chemistry for advanced wastewater treatment systems.
{"title":"Highly efficient heavy metal remediation from multiple scenarios actual industrial wastewaters by ultralong sub-5 nm polyoxometalate ionic liquid fibrilization strategy","authors":"Shuo Wang , Xinjie Gu , Xilin Geng , Ziyi Zhao , Lili Tian , Xiaolin Du , Yaran Song , Ningyi Chen , Keju Sun , Qingrui Zhang","doi":"10.1016/j.jhazmat.2026.141145","DOIUrl":"10.1016/j.jhazmat.2026.141145","url":null,"abstract":"<div><div>Reducing heavy metals to trace levels in actual complex industrial wastewater remains a major challenge due to high salinity, organic interferences, and multi-metal competition. Ionic liquids (ILs) are promising for metal remediation but suffer from limited active site accessibility and slow diffusion in conventional immobilized nanocomposites. Here, a scalable fibrillation strategy is developed based on precise molecular spatial confinement self-assembly, wherein lacunary Keggin-type SiW<sub>11</sub> clusters integrate with amphiphilic cations to yield one-dimensional IL nanofibrils. These IL nanofibrils feature ultrathin diameters (< 5 nm), high aspect ratios (> 10<sup>3</sup>), and strong negative zeta potentials (< −30 mV), enabling full active site exposure and rapid heavy metal transport. As a result, they achieve > 96.8 % removal efficiency under high salinity and multi-metal competition, with a Pb(II) distribution coefficient (<em>K</em><sub>d</sub>) of 28,877.5 mL/g—over 490-fold higher than commercial sulfonated polystyrene resins. Ultrafast kinetics were observed, with pseudo-second-order rate constants (k<sub>2</sub>) 6–10 times greater than those of supported ILs. In continuous-flow tests across five real industrial sites, the nanofibrils demonstrated purification capacities of 3678–6940 L/kg, consistently reducing effluent Pb(II) below 0.1 mg/L (GB21900–2008, China). Charged IL nanofibrils can be easily regenerated with negligible performance loss and at minimal cost, thereby constituting a robust and scalable platform for the deep extraction of heavy metals from real complex effluents. More broadly, this fibrillar IL construction strategy unlocks programmable interfacial chemistry for advanced wastewater treatment systems.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"503 ","pages":"Article 141145"},"PeriodicalIF":11.3,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975250","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}
Pub Date : 2026-01-13DOI: 10.1016/j.jhazmat.2026.141126
Hubdar Ali Maitlo, Changqi Chen, Zhansheng Lu, Ki-Hyun Kim
Efficient photocatalytic degradation of volatile aromatic hydrocarbons, such as benzene, remains a major challenge in photocatalytic air purification due to their highly stable π-conjugated structures and large ring-opening energy barriers. To address this, a series of Ag2O/TiO2 S-scheme heterojunction photocatalysts (denoted as AT–x, where x represents the mass ratio (%) of Ag2O to TiO2) is synthesized. In the AT-x S-scheme heterojunction, the Ag2O acts as the reduction photocatalyst and TiO2 as the oxidation photocatalyst. Exact insights into surface potential variations and the directional interfacial charge transfer pattern of the AT-4 photocatalyst are validated through comprehensive instrumental analysis (e.g., UPS, in-situ KPFM, and in-situ EPR) and DFT calculations. The optimized AT-4 sample exhibits outstanding photocatalytic oxidation performance toward gaseous benzene under dynamic flow conditions, achieving 94.4% removal efficiency at 1 ppm, with a kinetic rate of 46.3 µmol g-1 h-1 and an apparent quantum yield of 0.06%. The identification of key intermediates (e.g., ortho-/para-phenolate, benzoquinone, methylene, acetate, and maleate) via in-situ DRIFTS analysis further supports the proposed degradation pathway. Overall outcomes of this work should help in the construction of advanced heterojunction systems toward efficient photocatalysis of aromatic hydrocarbons in air.
{"title":"Mechanism and performance of a p-n Ag2O/TiO2 S-scheme heterojunction for photocatalytic oxidation of gaseous benzene","authors":"Hubdar Ali Maitlo, Changqi Chen, Zhansheng Lu, Ki-Hyun Kim","doi":"10.1016/j.jhazmat.2026.141126","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2026.141126","url":null,"abstract":"Efficient photocatalytic degradation of volatile aromatic hydrocarbons, such as benzene, remains a major challenge in photocatalytic air purification due to their highly stable π-conjugated structures and large ring-opening energy barriers. To address this, a series of Ag<ce:inf loc=\"post\">2</ce:inf>O/TiO<ce:inf loc=\"post\">2</ce:inf> S-scheme heterojunction photocatalysts (denoted as AT–x, where x represents the mass ratio (%) of Ag<ce:inf loc=\"post\">2</ce:inf>O to TiO<ce:inf loc=\"post\">2</ce:inf>) is synthesized. In the AT-x S-scheme heterojunction, the Ag<ce:inf loc=\"post\">2</ce:inf>O acts as the reduction photocatalyst and TiO<ce:inf loc=\"post\">2</ce:inf> as the oxidation photocatalyst. Exact insights into surface potential variations and the directional interfacial charge transfer pattern of the AT-4 photocatalyst are validated through comprehensive instrumental analysis (e.g., UPS, <ce:italic>in-situ</ce:italic> KPFM, and <ce:italic>in-situ</ce:italic> EPR) and DFT calculations. The optimized AT-4 sample exhibits outstanding photocatalytic oxidation performance toward gaseous benzene under dynamic flow conditions, achieving 94.4% removal efficiency at 1 ppm, with a kinetic rate of 46.3 µmol g<ce:sup loc=\"post\">-1</ce:sup> h<ce:sup loc=\"post\">-1</ce:sup> and an apparent quantum yield of 0.06%. The identification of key intermediates (e.g., ortho-/para-phenolate, benzoquinone, methylene, acetate, and maleate) via <ce:italic>in-situ</ce:italic> DRIFTS analysis further supports the proposed degradation pathway. Overall outcomes of this work should help in the construction of advanced heterojunction systems toward efficient photocatalysis of aromatic hydrocarbons in air.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"34 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2026-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957382","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}
The present work evaluated the synergistic impact of exogenous quorum sensing (QS) on the dynamics of dissolved organic matter and per- and polyfluoroalkyl substances mitigation (PFASs) during anaerobic digestion (AD). Results showed the QS-treated group exhibited a 15.58 % enhancement in cumulative methane yield, accelerated conversion of volatile fatty acids. FT-ICR-MS results indicated an accumulation of lignin (68.5–81.0 %) and condensed aromatic compounds (5.3–12.3 %) in the QS group, implying the development of more recalcitrant and structurally intricate organic substances. Simultaneously, the total PFASs concentration decreased more significantly in the treatment group, with precursors and long-chain PFASs exhibiting greater reduction rates compared to the control. Co-occurrence network analysis further revealed that QS reshaped the microbial-PFASs-DOM interactions by increasing microbial connectively and centrality of methanogenic archaea, which establishing stronger associations between PFASs and DOM. This study provides novel evidence that QS enhancing organic matter degradation and PFASs mitigation during biomass AD, offering a promising approach for integrated bioenergy production and environmental remediation.
{"title":"Investigating the effect of quorum sensing on the dissolved organic matter dynamics and its interaction with per- and polyfluoroalkyl substances mitigation during anaerobic digestion","authors":"Pengjiao Tian, Shuangyan Peng, Han Zhang, Xiaolu Li, Jiayi Xu, Mingxin Yang, Shentao Yang, Xiqing Wang, Haizhong Yu","doi":"10.1016/j.jhazmat.2026.141136","DOIUrl":"10.1016/j.jhazmat.2026.141136","url":null,"abstract":"<div><div>The present work evaluated the synergistic impact of exogenous quorum sensing (QS) on the dynamics of dissolved organic matter and per- and polyfluoroalkyl substances mitigation (PFASs) during anaerobic digestion (AD). Results showed the QS-treated group exhibited a 15.58 % enhancement in cumulative methane yield, accelerated conversion of volatile fatty acids. FT-ICR-MS results indicated an accumulation of lignin (68.5–81.0 %) and condensed aromatic compounds (5.3–12.3 %) in the QS group, implying the development of more recalcitrant and structurally intricate organic substances. Simultaneously, the total PFASs concentration decreased more significantly in the treatment group, with precursors and long-chain PFASs exhibiting greater reduction rates compared to the control. Co-occurrence network analysis further revealed that QS reshaped the microbial-PFASs-DOM interactions by increasing microbial connectively and centrality of methanogenic archaea, which establishing stronger associations between PFASs and DOM. This study provides novel evidence that QS enhancing organic matter degradation and PFASs mitigation during biomass AD, offering a promising approach for integrated bioenergy production and environmental remediation.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"503 ","pages":"Article 141136"},"PeriodicalIF":11.3,"publicationDate":"2026-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957380","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}
Pub Date : 2026-01-13DOI: 10.1016/j.jhazmat.2026.141117
Ling-Ling Wang , Fang-Chang Ling , Zi-Ai Qi , Zi-Jun Fang , Hui Li , Ji-Ming Gong
Heavy metal pollution and overuse of nitrogen fertilizer have essentially deteriorated soil environments, though how these two factors interact with each other to impact plant growth remains largely unknown. Here, we reported polar localization of NRT1.8 towards the soil side at epidermal cells adjacent to lateral root caps (LRC). The combined treatment of Cd and high nitrate induced NRT1.8 expression at root tips, leading to uptake of more NO3- from LRC into inner cells, meanwhile, unloading of NO3- from the xylem to collaboratively maintain NO3- level in the root tip. The root length and meristematic cell numbers are significantly decreased in the nrt1.8 mutant compared to the wild-type when exposed to the combined treatment. Further investigation found that the NRT1.8-mediated nitrate uptake in the root tip leads to nitric oxide (NO) accumulation, which functions to alleviate root growth inhibition upon Cd stress, and promotes cell proliferation of the meristematic zone. Our research identified the LRC region as an important site for the entry of nitrate under stress conditions and for maintaining nitrogen levels in this area, providing a good model to understand cell-to-cell communication during root response to complex soil deterioration.
{"title":"Localized nitrate uptake by NRT1.8 antagonizes root meristem growth inhibition upon cadmium stress","authors":"Ling-Ling Wang , Fang-Chang Ling , Zi-Ai Qi , Zi-Jun Fang , Hui Li , Ji-Ming Gong","doi":"10.1016/j.jhazmat.2026.141117","DOIUrl":"10.1016/j.jhazmat.2026.141117","url":null,"abstract":"<div><div>Heavy metal pollution and overuse of nitrogen fertilizer have essentially deteriorated soil environments, though how these two factors interact with each other to impact plant growth remains largely unknown. Here, we reported polar localization of NRT1.8 towards the soil side at epidermal cells adjacent to lateral root caps (LRC). The combined treatment of Cd and high nitrate induced <em>NRT1.8</em> expression at root tips, leading to uptake of more NO<sub>3</sub><sup>-</sup> from LRC into inner cells, meanwhile, unloading of NO<sub>3</sub><sup>-</sup> from the xylem to collaboratively maintain NO<sub>3</sub><sup>-</sup> level in the root tip. The root length and meristematic cell numbers are significantly decreased in the <em>nrt1.8</em> mutant compared to the wild-type when exposed to the combined treatment. Further investigation found that the NRT1.8-mediated nitrate uptake in the root tip leads to nitric oxide (NO) accumulation, which functions to alleviate root growth inhibition upon Cd stress, and promotes cell proliferation of the meristematic zone. Our research identified the LRC region as an important site for the entry of nitrate under stress conditions and for maintaining nitrogen levels in this area, providing a good model to understand cell-to-cell communication during root response to complex soil deterioration.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"503 ","pages":"Article 141117"},"PeriodicalIF":11.3,"publicationDate":"2026-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957383","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}
Pub Date : 2026-01-13DOI: 10.1016/j.jhazmat.2026.141144
Xinyu Wang, Zhaoguo Li, Guang Yang, Weiyue Sun, Jibin Ning
Wildfire emissions of PM2.5, including its water-soluble organic compounds (WSOC) fraction, pose a significant threat to the global environment and human health. However, the dynamic correlations among the fire environment, fire behavior, as well as the fluorescence components and spectral characteristics of WSOC remain unclear. In this study, a total of 144 indoor simulated combustion experiments and subsequent indoor tests were carried out by setting different fuel loads, fuel moisture contents, and slopes. The results indicated that both the fire environment and fire behavior had a significant impact on the fluorescence components and spectral characteristics of WSOC (P < 0.05). By employing Pearson's correlation coefficient and multiple regression analysis, the correlation intensity of fire environment - fire behavior - WSOC fluorescence components and spectral characteristics was quantified for the first time, thereby uncovering the dynamic coupling relationship among these three elements. After the concentration of PM2.5 changes, the fluorescence components and spectral characteristics of its WSOC exhibit significant differences, which suggests that relying only on PM2.5 concentration to assess health risks may lead to underestimation. It is recommended that fuel management be integrated into the regional health risk assessment system to reduce the impact of wildfire emissions pollution on the ecological environment and public health.
{"title":"Mechanistic drivers of PM2.5 emissions and water-soluble organic compounds and spectral characteristics from wildfire combustion","authors":"Xinyu Wang, Zhaoguo Li, Guang Yang, Weiyue Sun, Jibin Ning","doi":"10.1016/j.jhazmat.2026.141144","DOIUrl":"10.1016/j.jhazmat.2026.141144","url":null,"abstract":"<div><div>Wildfire emissions of PM<sub>2.5</sub>, including its water-soluble organic compounds (WSOC) fraction, pose a significant threat to the global environment and human health. However, the dynamic correlations among the fire environment, fire behavior, as well as the fluorescence components and spectral characteristics of WSOC remain unclear. In this study, a total of 144 indoor simulated combustion experiments and subsequent indoor tests were carried out by setting different fuel loads, fuel moisture contents, and slopes. The results indicated that both the fire environment and fire behavior had a significant impact on the fluorescence components and spectral characteristics of WSOC (<em>P</em> < 0.05). By employing Pearson's correlation coefficient and multiple regression analysis, the correlation intensity of fire environment - fire behavior - WSOC fluorescence components and spectral characteristics was quantified for the first time, thereby uncovering the dynamic coupling relationship among these three elements. After the concentration of PM<sub>2.5</sub> changes, the fluorescence components and spectral characteristics of its WSOC exhibit significant differences, which suggests that relying only on PM<sub>2.5</sub> concentration to assess health risks may lead to underestimation. It is recommended that fuel management be integrated into the regional health risk assessment system to reduce the impact of wildfire emissions pollution on the ecological environment and public health.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"503 ","pages":"Article 141144"},"PeriodicalIF":11.3,"publicationDate":"2026-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957344","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}
Pub Date : 2026-01-13DOI: 10.1016/j.jhazmat.2026.141143
Sam van Loon, Ge Xie, Claus Svendsen, Michiel H.S. Kraak, Lotte de Jeu, Nienke C. Schut, Eva Sprokkereef, Rachel Hurley, Annemarie P. van Wezel, Cornelis A.M. van Gestel
{"title":"Corrigendum to “Microplastics and PFAS as ubiquitous pollutants affect potencies of highly toxic chemicals in mixtures” [J Hazard Mater 500 (2025) 140493]","authors":"Sam van Loon, Ge Xie, Claus Svendsen, Michiel H.S. Kraak, Lotte de Jeu, Nienke C. Schut, Eva Sprokkereef, Rachel Hurley, Annemarie P. van Wezel, Cornelis A.M. van Gestel","doi":"10.1016/j.jhazmat.2026.141143","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2026.141143","url":null,"abstract":"","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"391 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2026-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145961918","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}
Pub Date : 2026-01-13DOI: 10.1016/j.jhazmat.2026.141141
Hogeon Lee, Yeona Jo, Minwoo Jung, Jung Hyun Lee, Tae Hee Kim, Jungmin Lee, Da Jung Kim, Masoud Rahmati, Lee Smith, Damiano Pizzol, Yejun Son, Jaeyu Park, Sung-Hoon Ahn, Dong Keon Yon, Dal Woong Choi, Jiseung Kang
We aimed to systematically evaluate the strength and credibility of evidence linking exposure to five major heavy metals, including arsenic, cadmium, lead, mercury, and chromium, with health outcomes (PROSPERO, CRD420251169899). Literature searches of PubMed/Embase, CINAHL, and Google Scholar up to April 20, 2025, identified meta-analyses of observational studies assessing these associations. Effect sizes were recalculated using random-effects models and expressed as equivalent odds ratios (eOR) with 95% confidence intervals (CIs). The methodological quality of the included reviews was assessed using the AMSTAR2, and the credibility of associations was graded according to predefined criteria: Class I (convincing), Class II (highly suggestive), Class III (suggestive), Class IV (weak), and non-significant (NS). A total of 35 meta-analyses encompassing 103 health outcomes were included. Arsenic exposure was associated with melanoma (eOR 1.50 [95% CI, 1.0-2.24], CE=IV), digestive cancers (1.23 [1.07-1.41], CE=III), gestational diabetes mellitus (1.47 [1.11-1.95], CE=III), hypertension (1.15 [1.06-1.24], CE=III), and preterm birth (1.12 [1.04-1.21], CE=III). Lead exposure showed significant associations with autistic disorder in children (12.70 [3.93-41.10], CE=IV), hearing loss (7.55 [6.69-8.53], CE=III), age-related eye disease (9.80 [1.72-55.85], CE=IV), and amyotrophic lateral sclerosis (1.46 [1.16-1.83], CE=III). Mercury exposure was linked to increased risk in membranous nephropathy (5.75 [1.54-21.44], CE=IV) and thyroid cancer (1.90 [1.55-2.33], CE=IV). Cadmium exposure was associated with renal cancer (1.47 [1.26-1.71], CE=II), cardiovascular disease (1.33 [1.05-1.69], CE=IV), stroke (1.36 [1.10-1.68], CE=III), diabetes mellitus (1.27 [1.07-1.52], CE=III), fracture risk (1.30 [1.13-1.49], CE=III), and age-related eye disease (113.26 [16.86-760.68], CE=III). Chromium exposure was associated with stomach cancer (1.28 [1.16-1.41], CE=I), supporting convincing evidence. Overall, exposures to these metals were consistently associated with diverse diseases across organ systems and life stages, suggesting proactive implications against heavy metal exposures.
{"title":"Heavy metal exposure and all health outcomes: an umbrella review of meta-analyses","authors":"Hogeon Lee, Yeona Jo, Minwoo Jung, Jung Hyun Lee, Tae Hee Kim, Jungmin Lee, Da Jung Kim, Masoud Rahmati, Lee Smith, Damiano Pizzol, Yejun Son, Jaeyu Park, Sung-Hoon Ahn, Dong Keon Yon, Dal Woong Choi, Jiseung Kang","doi":"10.1016/j.jhazmat.2026.141141","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2026.141141","url":null,"abstract":"We aimed to systematically evaluate the strength and credibility of evidence linking exposure to five major heavy metals, including arsenic, cadmium, lead, mercury, and chromium, with health outcomes (PROSPERO, CRD420251169899). Literature searches of PubMed/Embase, CINAHL, and Google Scholar up to April 20, 2025, identified meta-analyses of observational studies assessing these associations. Effect sizes were recalculated using random-effects models and expressed as equivalent odds ratios (eOR) with 95% confidence intervals (CIs). The methodological quality of the included reviews was assessed using the AMSTAR2, and the credibility of associations was graded according to predefined criteria: Class I (convincing), Class II (highly suggestive), Class III (suggestive), Class IV (weak), and non-significant (NS). A total of 35 meta-analyses encompassing 103 health outcomes were included. Arsenic exposure was associated with melanoma (eOR 1.50 [95% CI, 1.0-2.24], CE=IV), digestive cancers (1.23 [1.07-1.41], CE=III), gestational diabetes mellitus (1.47 [1.11-1.95], CE=III), hypertension (1.15 [1.06-1.24], CE=III), and preterm birth (1.12 [1.04-1.21], CE=III). Lead exposure showed significant associations with autistic disorder in children (12.70 [3.93-41.10], CE=IV), hearing loss (7.55 [6.69-8.53], CE=III), age-related eye disease (9.80 [1.72-55.85], CE=IV), and amyotrophic lateral sclerosis (1.46 [1.16-1.83], CE=III). Mercury exposure was linked to increased risk in membranous nephropathy (5.75 [1.54-21.44], CE=IV) and thyroid cancer (1.90 [1.55-2.33], CE=IV). Cadmium exposure was associated with renal cancer (1.47 [1.26-1.71], CE=II), cardiovascular disease (1.33 [1.05-1.69], CE=IV), stroke (1.36 [1.10-1.68], CE=III), diabetes mellitus (1.27 [1.07-1.52], CE=III), fracture risk (1.30 [1.13-1.49], CE=III), and age-related eye disease (113.26 [16.86-760.68], CE=III). Chromium exposure was associated with stomach cancer (1.28 [1.16-1.41], CE=I), supporting convincing evidence. Overall, exposures to these metals were consistently associated with diverse diseases across organ systems and life stages, suggesting proactive implications against heavy metal exposures.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"37 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2026-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957378","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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