As a popular beverage with an integration property of medicine, chrysanthemum industry has exhibited a significant increase in production and consumption in recent years. However, pesticide residues have emerged as a critical concern threatening the sustainable development of the chrysanthemum industry. In this study, based on an analysis of pesticide occurrence of 111 market chrysanthemum products from China, 17 pesticides with high detection frequencies and residue levels were selected to investigate their fate and exposure risks across the chrysanthemum production chain. Field dissipation experiments revealed first-order kinetics for all target pesticides, with half-lives ranging from 0.8 to 8.8 days after foliar application. During chrysanthemum manufacturing, pesticides showed a significant concentration, significantly correlated with the hydrophobicity (logKow) and water solubility (Ws) of the pesticides. Drying was identified as the pivotal step determining the pesticide residue retention in final products. Brewing step resulted 0.5% to 112.3% residue transfer of the pesticides from dry chrysanthemum to infusion, positively related with Ws. Combined risk assessment indicated an acceptable health risk by chrysanthemum consumption. Data from this study provide insights into the fate of pesticides during chrysanthemum production chain, promoting a rational and scientific use of pesticides to ensure product safety and industry sustainability.
{"title":"Occurrence, fate and dietary risk assessment of pesticides in chrysanthemum from garden to cup","authors":"Xinru Wang, Wenwen Fan, Chengmin Zha, Zihan Wang, Jiawei Yu, Luchao Wu, Xinzhong Zhang, Fengjian Luo, Zongmao Chen, Li Zhou","doi":"10.1016/j.jhazmat.2025.138363","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.138363","url":null,"abstract":"As a popular beverage with an integration property of medicine, chrysanthemum industry has exhibited a significant increase in production and consumption in recent years. However, pesticide residues have emerged as a critical concern threatening the sustainable development of the chrysanthemum industry. In this study, based on an analysis of pesticide occurrence of 111 market chrysanthemum products from China, 17 pesticides with high detection frequencies and residue levels were selected to investigate their fate and exposure risks across the chrysanthemum production chain. Field dissipation experiments revealed first-order kinetics for all target pesticides, with half-lives ranging from 0.8 to 8.8 days after foliar application. During chrysanthemum manufacturing, pesticides showed a significant concentration, significantly correlated with the hydrophobicity (logKow) and water solubility (Ws) of the pesticides. Drying was identified as the pivotal step determining the pesticide residue retention in final products. Brewing step resulted 0.5% to 112.3% residue transfer of the pesticides from dry chrysanthemum to infusion, positively related with Ws. Combined risk assessment indicated an acceptable health risk by chrysanthemum consumption. Data from this study provide insights into the fate of pesticides during chrysanthemum production chain, promoting a rational and scientific use of pesticides to ensure product safety and industry sustainability.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"108 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853114","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 : 2025-04-21DOI: 10.1016/j.jhazmat.2025.138375
C. Yahavi , Manisha Bhateria , Sheelendra Pratap Singh
The 21st-century risk assessment is gradually moving from animal-based toxicity studies to in vitro alternative assays that are sustainable and ethically acceptable. Alternative assays, such as rat whole embryo culture test (WEC), mouse embryonic stem cell test (EST), zebrafish embryotoxicity test (ZET), and ToxCast assays, are widely used for screening the chemicals for developmental toxicity. However, for use in risk assessment, these assays require integration with the predictive approaches, such as physiologically based toxicokinetic (PBTK) model. Using PBTK-facilitated reverse dosimetry approach, we translated the in vitro assay concentration to human equivalent doses (HEDs) using hexaconazole (HEX, a widely used fungicide) as the model compound. For this, a rat PBTK model was developed and verified using in-house generated toxicokinetic data. Based on the rat model, human PBTK model was developed to translate the in vitro concentrations of various alternative assays into HEDs (0.16–7850 mg/kg/day). These HEDs were compared with the HED derived using the traditional approach based on rat toxicity data. The HEDs derived from the alternative assays (WEC, EST and ZET) showed poor correlation with the HED derived from the traditional approach. However, most of the HEDs derived from the ToxCast assays were close to the traditional HED. This indicated that the PBTK model-facilitated reverse dosimetry approach could derive the HEDs directly from in vitro assays when sufficient animal data is lacking.
{"title":"Comparative assessment of different alternatives to animal models for developmental toxicity prediction using physiologically based toxicokinetic modelling approach: A case study of hexaconazole, an azole fungicide","authors":"C. Yahavi , Manisha Bhateria , Sheelendra Pratap Singh","doi":"10.1016/j.jhazmat.2025.138375","DOIUrl":"10.1016/j.jhazmat.2025.138375","url":null,"abstract":"<div><div>The 21<sup>st</sup>-century risk assessment is gradually moving from animal-based toxicity studies to <em>in vitro</em> alternative assays that are sustainable and ethically acceptable. Alternative assays, such as rat whole embryo culture test (WEC), mouse embryonic stem cell test (EST), zebrafish embryotoxicity test (ZET), and ToxCast assays, are widely used for screening the chemicals for developmental toxicity. However, for use in risk assessment, these assays require integration with the predictive approaches, such as physiologically based toxicokinetic (PBTK) model. Using PBTK-facilitated reverse dosimetry approach, we translated the <em>in vitro</em> assay concentration to human equivalent doses (HEDs) using hexaconazole (HEX, a widely used fungicide) as the model compound. For this, a rat PBTK model was developed and verified using <em>in-house</em> generated toxicokinetic data. Based on the rat model, human PBTK model was developed to translate the <em>in vitro</em> concentrations of various alternative assays into HEDs (0.16–7850 mg/kg/day). These HEDs were compared with the HED derived using the traditional approach based on rat toxicity data. The HEDs derived from the alternative assays (WEC, EST and ZET) showed poor correlation with the HED derived from the traditional approach. However, most of the HEDs derived from the ToxCast assays were close to the traditional HED. This indicated that the PBTK model-facilitated reverse dosimetry approach could derive the HEDs directly from <em>in vitro</em> assays when sufficient animal data is lacking.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"493 ","pages":"Article 138375"},"PeriodicalIF":12.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858103","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 : 2025-04-21DOI: 10.1016/j.jhazmat.2025.138372
Zhou-Yang Li , Min Li , Bin Liu , Xue-Ning Zhang , Shan Yi , Wei-Qin Zhuang , Wen Wang , Yi-Lu Sun , Ai-Jie Wang
Microbial anaerobic metabolism is crucial for biogeochemical cycles, impacting both natural and engineered ecosystems. However, the increasing emissions of 6:2 Cl-PFESA, an alternative to PFOS, pose significant risks. In this study, long-term high 6:2 Cl-PFESA concentration level of 10 µg/g TS exposure led to a substantial decrease in methane production from 204.8 ± 4.8 mL/g VS to 143.6 ± 3.5 mL/g VS, indicating a cumulative inhibitory effect on carbohydrate-related anaerobic digestion. Key processes such as polysaccharide release, hydrolysis, acetogenesis, and acetoclastic methanogenesis were contributed by 28.6 %, 9.3 %, 8.9 %, and 11.7 % of significant reduction, respectively, correlating with inhibition in relevant enzymatic activities and gene expressions. Hydrolytic bacteria such as Rectinema and Defluviitoga declined to 11.7 % from 14.3 % and 20.9 % from 23.9 %, reflecting decreased hydrolysis efficiency. Reduced transcription levels of acetogenesis- and acidogenesis-related genes further inhibited these processes. Conversely, methanogens Methanolinea and Methanothrix increased from 35.8 % to 55.7 % and 10.9–40.8 %, suggesting enzyme inhibition rather than methanogen abundance reduction. Additionally, 6:2 Cl-PFESA partially biotransformed into 6:2H-PFESA, facilitated by species like Dechloromonas, unclassified Xanthomonadales, and Betaproteobacteria. These findings confirm that the limited degradation and cumulative inhibitory effects of 6:2 Cl-PFESA during anaerobic digestion highlight its significant disruption to carbon cycling stability within ecosystems.
{"title":"Cumulative inhibitory effect of 6:2 chlorinated polyfluorooctane ether sulfonate in anaerobic digestion processes","authors":"Zhou-Yang Li , Min Li , Bin Liu , Xue-Ning Zhang , Shan Yi , Wei-Qin Zhuang , Wen Wang , Yi-Lu Sun , Ai-Jie Wang","doi":"10.1016/j.jhazmat.2025.138372","DOIUrl":"10.1016/j.jhazmat.2025.138372","url":null,"abstract":"<div><div>Microbial anaerobic metabolism is crucial for biogeochemical cycles, impacting both natural and engineered ecosystems. However, the increasing emissions of 6:2 Cl-PFESA, an alternative to PFOS, pose significant risks. In this study, long-term high 6:2 Cl-PFESA concentration level of 10 µg/g TS exposure led to a substantial decrease in methane production from 204.8 ± 4.8 mL/g VS to 143.6 ± 3.5 mL/g VS, indicating a cumulative inhibitory effect on carbohydrate-related anaerobic digestion. Key processes such as polysaccharide release, hydrolysis, acetogenesis, and acetoclastic methanogenesis were contributed by 28.6 %, 9.3 %, 8.9 %, and 11.7 % of significant reduction, respectively, correlating with inhibition in relevant enzymatic activities and gene expressions. Hydrolytic bacteria such as <em>Rectinema</em> and <em>Defluviitoga</em> declined to 11.7 % from 14.3 % and 20.9 % from 23.9 %, reflecting decreased hydrolysis efficiency. Reduced transcription levels of acetogenesis- and acidogenesis-related genes further inhibited these processes. Conversely, methanogens <em>Methanolinea</em> and <em>Methanothrix</em> increased from 35.8 % to 55.7 % and 10.9–40.8 %, suggesting enzyme inhibition rather than methanogen abundance reduction. Additionally, 6:2 Cl-PFESA partially biotransformed into 6:2H-PFESA, facilitated by species like <em>Dechloromonas</em>, unclassified <em>Xanthomonadales</em>, and Betaproteobacteria. These findings confirm that the limited degradation and cumulative inhibitory effects of 6:2 Cl-PFESA during anaerobic digestion highlight its significant disruption to carbon cycling stability within ecosystems.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"493 ","pages":"Article 138372"},"PeriodicalIF":12.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858106","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 : 2025-04-21DOI: 10.1016/j.jhazmat.2025.138361
Hongsu Wang , Nan Liang , Li Wang , Yue Yu , Jingqi Guan , Xiaodi Niu
Conventional single-atom nanozyme materials often exhibit limited enzyme-like activities and substrate specificity, making it challenging to meet the integrated demands for simultaneous detection and purification in environmental applications. In this study, we developed a novel nanozyme system featuring single/diatomic synergistic iron active sites (sdsFeN@G). sdsFeN@G exhibits superior multi-enzyme activities (POD, OXD, Laccase), outperforming natural enzymes in catalytic efficiency. Density functional theory (DFT) calculations revealed that the Fe-N four-coordination bonding shifted the d-band center of Fe closer to the Fermi level, enhancing the catalytic activity of the single/diatomic synergistic active sites. The colorimetric sensor platform integrating sdsFeN@G as the active component exhibited a detection limit as low as 0.992 μM and, leveraging its Laccase-like activity, achieved effective degradation of these antioxidants with a maximum degradation rate of 80 % for kitchen wastewater. To meet the real-time detection and purification needs in practical kitchen wastewater discharge processes, a convenient detection/purification integrated kitchen wastewater filtration valve was designed based on the sdsFeN@G nanozyme. This work advances the development of multi-enzyme active nanozyme materials, providing a promising strategy for addressing real-world environmental protection challenges.
{"title":"Synergistic iron single/diatomic nanozyme-based colorimetric filtration valve for real-time detection and degradation of kitchen wastewater contaminants","authors":"Hongsu Wang , Nan Liang , Li Wang , Yue Yu , Jingqi Guan , Xiaodi Niu","doi":"10.1016/j.jhazmat.2025.138361","DOIUrl":"10.1016/j.jhazmat.2025.138361","url":null,"abstract":"<div><div>Conventional single-atom nanozyme materials often exhibit limited enzyme-like activities and substrate specificity, making it challenging to meet the integrated demands for simultaneous detection and purification in environmental applications. In this study, we developed a novel nanozyme system featuring single/diatomic synergistic iron active sites (sdsFeN@G). sdsFeN@G exhibits superior multi-enzyme activities (POD, OXD, Laccase), outperforming natural enzymes in catalytic efficiency. Density functional theory (DFT) calculations revealed that the Fe-N four-coordination bonding shifted the <em>d</em>-band center of Fe closer to the Fermi level, enhancing the catalytic activity of the single/diatomic synergistic active sites. The colorimetric sensor platform integrating sdsFeN@G as the active component exhibited a detection limit as low as 0.992 μM and, leveraging its Laccase-like activity, achieved effective degradation of these antioxidants with a maximum degradation rate of 80 % for kitchen wastewater. To meet the real-time detection and purification needs in practical kitchen wastewater discharge processes, a convenient detection/purification integrated kitchen wastewater filtration valve was designed based on the sdsFeN@G nanozyme. This work advances the development of multi-enzyme active nanozyme materials, providing a promising strategy for addressing real-world environmental protection challenges.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"493 ","pages":"Article 138361"},"PeriodicalIF":12.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853206","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 : 2025-04-21DOI: 10.1016/j.jhazmat.2025.138343
Cheng Gong , Peiming Zhang , Ya Liu , Ruolan Chen , Kai Huang , Weizhun Yang , Lirong Gao , Ming Xu , Xuezhi Yang , Yin Liu , Qian Liu , Bing Yan , Bin Zhao , Guibin Jiang
The extensive use of lithium (Li) in green energy generation and storage poses a growing risk of human Li+ exposure. Therefore, advancing bioimaging and safety evaluation approaches for Li+ is crucial. This study introduces a new stratagem to reveal the toxicity effects of Li+ by developing a reversible lithium-sensitive probe (LSP). This probe, designed by conjugating spiropyran and azacrown ethers, enables highly selective imaging of Li+ within living cells at environmentally relevant concentrations, both extracellularly and in vitro. Utilizing this advanced probe, we conducted noninvasive monitoring to observe Li+ permeation through Aquaporin-1 (AQP1) channels in human embryonic kidney cells (HEK293) and its subsequent accumulation in the mitochondria. This mitochondrial accumulation led to decreased mitochondrial membrane potential, increased Cytochrome C (Cyto C) release, disruption of mitochondrial respiratory chain complex activity, and heightened cellular oxidative stress. These findings underscore LSP’s utility in delineating spatial distributions and concentrations of Li+ in biological systems and monitor the Li+-involved nephrotoxicity caused by mitochondrial damage.
{"title":"A reversible fluorescence probe enables bioimaging and toxicity evaluation of lithium ion in living human cells","authors":"Cheng Gong , Peiming Zhang , Ya Liu , Ruolan Chen , Kai Huang , Weizhun Yang , Lirong Gao , Ming Xu , Xuezhi Yang , Yin Liu , Qian Liu , Bing Yan , Bin Zhao , Guibin Jiang","doi":"10.1016/j.jhazmat.2025.138343","DOIUrl":"10.1016/j.jhazmat.2025.138343","url":null,"abstract":"<div><div>The extensive use of lithium (Li) in green energy generation and storage poses a growing risk of human Li<sup>+</sup> exposure. Therefore, advancing bioimaging and safety evaluation approaches for Li<sup>+</sup> is crucial. This study introduces a new stratagem to reveal the toxicity effects of Li<sup>+</sup> by developing a reversible lithium-sensitive probe (LSP). This probe, designed by conjugating spiropyran and azacrown ethers, enables highly selective imaging of Li<sup>+</sup> within living cells at environmentally relevant concentrations, both extracellularly and <em>in vitro</em>. Utilizing this advanced probe, we conducted noninvasive monitoring to observe Li<sup>+</sup> permeation through Aquaporin-1 (AQP1) channels in human embryonic kidney cells (HEK293) and its subsequent accumulation in the mitochondria. This mitochondrial accumulation led to decreased mitochondrial membrane potential, increased Cytochrome C (Cyto C) release, disruption of mitochondrial respiratory chain complex activity, and heightened cellular oxidative stress. These findings underscore LSP’s utility in delineating spatial distributions and concentrations of Li<sup>+</sup> in biological systems and monitor the Li<sup>+</sup>-involved nephrotoxicity caused by mitochondrial damage.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"493 ","pages":"Article 138343"},"PeriodicalIF":12.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853209","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 : 2025-04-21DOI: 10.1016/j.jhazmat.2025.138364
Yao Xie , Somia Yassin Hussain Abdalkarim , Hiba Adil Mahjoob , Chaopei Chen , Haicheng Huang , Hou-Yong Yu
The increasing use of biodegradable mulches, such as polylactic acid (PLA), offers a promising approach to tackling plastic waste. However, if PLA is improperly disposed of and degraded uncontrollably, it can negatively impact soil health and plant growth, compromising environmental benefits. This study demonstrates an interaction between hydrophobically modified nanocellulose (CA-CNC(MgSt)), which serves as a plasticizer within a PLA matrix, to create a self-degradable mulch film (PC). Specifically, PC exhibits an impressive toughness of 3.55 MJ·m−3. The use of PC mulch increased soil moisture content, stem length, and leaf area by 31.6 % and 63.2 %, respectively, while maintaining high biosafety. The degradation behavior of PC mulch varied with soil depth (-2, −7, and −14 cm), enhancing soil porosity and lowering pH, which accelerated its degradation and promoted root growth. Additionally, PC degraded faster than pure PLA (kp < kpc), attributed to the preferential hydrolysis of ester bonds. Biodegradable microplastics (BMPs) generated from mulch degradation, including P-BMPs and PC-BMPs, were studied using cherry radish growth models to explore plant-soil-microplastic interactions. This study demonstrates the potential of PC mulch to reduce plastic pollution through effective biodegradation while enhancing the stability of the soil-plant ecosystem. However, comprehensive ecological risk assessments are essential before their large-scale application.
{"title":"Unveiling the impact of soil depth on degradation of durable nanocomposite mulch-derived residue migration dynamics in plant ecosystems","authors":"Yao Xie , Somia Yassin Hussain Abdalkarim , Hiba Adil Mahjoob , Chaopei Chen , Haicheng Huang , Hou-Yong Yu","doi":"10.1016/j.jhazmat.2025.138364","DOIUrl":"10.1016/j.jhazmat.2025.138364","url":null,"abstract":"<div><div>The increasing use of biodegradable mulches, such as polylactic acid (PLA), offers a promising approach to tackling plastic waste. However, if PLA is improperly disposed of and degraded uncontrollably, it can negatively impact soil health and plant growth, compromising environmental benefits. This study demonstrates an interaction between hydrophobically modified nanocellulose (CA-CNC(MgSt)), which serves as a plasticizer within a PLA matrix, to create a self-degradable mulch film (PC). Specifically, PC exhibits an impressive toughness of 3.55 MJ·m<sup>−3</sup>. The use of PC mulch increased soil moisture content, stem length, and leaf area by 31.6 % and 63.2 %, respectively, while maintaining high biosafety. The degradation behavior of PC mulch varied with soil depth (-2, −7, and −14 cm), enhancing soil porosity and lowering pH, which accelerated its degradation and promoted root growth. Additionally, PC degraded faster than pure PLA (<em>k</em><sub><em>p</em></sub> < <em>k</em><sub><em>pc</em></sub>), attributed to the preferential hydrolysis of ester bonds. Biodegradable microplastics (BMPs) generated from mulch degradation, including P-BMPs and PC-BMPs, were studied using cherry radish growth models to explore plant-soil-microplastic interactions. This study demonstrates the potential of PC mulch to reduce plastic pollution through effective biodegradation while enhancing the stability of the soil-plant ecosystem. However, comprehensive ecological risk assessments are essential before their large-scale application.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"493 ","pages":"Article 138364"},"PeriodicalIF":12.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853211","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 : 2025-04-21DOI: 10.1016/j.jhazmat.2025.138355
Zhen Sun , Xueli Yang , Shaobin Yang , Kun Li , Xia Zhao , Lanxiang Yao , Wanru Xu , Haichao Wang , LanLan Guo , Guofeng Pan
Developing a cost-effective sensing material capable of detecting H2S with ultra-sensitivity, ultra-selectivity, and low detection limits at room temperature remains highly anticipated. In this paper, two-dimensional (2D) porous In2O3 nanosheets were prepared by a simple solvothermal method, and then CuO was modified on the In2O3 surface by impregnation. The CuO/In2O3 two-dimensional porous structure allows the fabricated sensor to be highly sensitive to H2S at room temperature. Modifying CuO on In2O3 significantly improves the response (Ra/Rg) to 10 ppm H2S from 26 to 58000 at room temperature, while the response to other interfering gases (even 10 times the concentration of H2S) not exceeding 5. After loading CuO, the response time was shortened from 56 s to 2 s, and the detection limit was reduced from 500 ppb to 50 ppb. Meanwhile, CuO/In2O3 also has good repeatability and long-term stability, and full recovery can be achieved by pulse heating. The gas sensing and characterization results demonstrate that the excellent sensing performance of CuO/In2O3 for H2S at room temperature is due to the specific porous nanosheets morphology and structure of the material, the strong chemical affinity of alkaline CuO for H2S, as well as the formation of p-n heterojunctions.
{"title":"Ultrasensitive and ultra-selective room-temperature H2S gas sensor based on CuO-loaded In2O3 2D porous nanosheets","authors":"Zhen Sun , Xueli Yang , Shaobin Yang , Kun Li , Xia Zhao , Lanxiang Yao , Wanru Xu , Haichao Wang , LanLan Guo , Guofeng Pan","doi":"10.1016/j.jhazmat.2025.138355","DOIUrl":"10.1016/j.jhazmat.2025.138355","url":null,"abstract":"<div><div>Developing a cost-effective sensing material capable of detecting H<sub>2</sub>S with ultra-sensitivity, ultra-selectivity, and low detection limits at room temperature remains highly anticipated. In this paper, two-dimensional (2D) porous In<sub>2</sub>O<sub>3</sub> nanosheets were prepared by a simple solvothermal method, and then CuO was modified on the In<sub>2</sub>O<sub>3</sub> surface by impregnation. The CuO/In<sub>2</sub>O<sub>3</sub> two-dimensional porous structure allows the fabricated sensor to be highly sensitive to H<sub>2</sub>S at room temperature. Modifying CuO on In<sub>2</sub>O<sub>3</sub> significantly improves the response (R<sub>a</sub>/R<sub>g</sub>) to 10 ppm H<sub>2</sub>S from 26 to 58000 at room temperature, while the response to other interfering gases (even 10 times the concentration of H<sub>2</sub>S) not exceeding 5. After loading CuO, the response time was shortened from 56 s to 2 s, and the detection limit was reduced from 500 ppb to 50 ppb. Meanwhile, CuO/In<sub>2</sub>O<sub>3</sub> also has good repeatability and long-term stability, and full recovery can be achieved by pulse heating. The gas sensing and characterization results demonstrate that the excellent sensing performance of CuO/In<sub>2</sub>O<sub>3</sub> for H<sub>2</sub>S at room temperature is due to the specific porous nanosheets morphology and structure of the material, the strong chemical affinity of alkaline CuO for H<sub>2</sub>S, as well as the formation of p-n heterojunctions.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"493 ","pages":"Article 138355"},"PeriodicalIF":12.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853214","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 : 2025-04-21DOI: 10.1016/j.jhazmat.2025.138370
Yuan Zheng , Hao Zhou , Yingqi Peng , Xue Wang , Yuxiang Yang , Yifan Deng , Yang Liu , Haixia Pan , Xu Zhao , Xiaojing Yang , Jianli Guo , Jiajia Shan
Microbial biodegradation of microplastic (MP) emerges as an environmentally benign and highly promising strategy for alleviating MP pollution in the ecosystem. Conventional approaches for screening MP-degrading bacteria use pollutants as the sole carbon source. Co-metabolism plays an essential role in microbial screening, as it enables the discovery of additional degrading microorganisms. However, identifying co-metabolic degrading bacteria is challenging and time-intensive, as not all microorganisms on a co-metabolic medium exhibit degradation capability, increasing the need for refined screening methods. In this study, we propose a novel hyperspectral imaging (HSI) approach to rapidly screen polybutylene adipate terephthalate (PBAT) degrading bacteria directly from co-metabolic media. Hyperspectral images of solid media cultures were acquired, capturing both spatial (image) and spectral (chemical) information. Chemical components in the solid medium exhibit distinct changes under the influence of degrading and non-degrading bacteria. By analyzing the spectral information using machine and deep learning algorithms, it was possible to monitor the PBAT concentration changes in the solid medium, indirectly identifying degrading and non-degrading bacteria. This HSI-based model successfully screened out one kind of PBAT-degrading bacteria validated by traditional method, demonstrating potential for rapid screening of MP-degrading bacteria. With artificial intelligence (AI) technology attracting extensive attention across diverse fields, this study pioneers a new approach for the efficient screening of degrading microorganisms by combining AI algorithms with HSI. This innovative methodology is expected to display significant application potential, thus facilitating the research and development in related fields.
Synopsis
This study introduces a highly efficient method to screen co-metabolic MP-degrading bacteria. By combining HSI with deep learning, MP-degrading bacteria can be directly identified on co-metabolism solid media, greatly enhancing the efficiency of screening for MP-degrading microorganisms.
{"title":"Deep learning-enhanced hyperspectral imaging for rapid screening of Co-metabolic microplastic-degrading bacteria in environmental samples","authors":"Yuan Zheng , Hao Zhou , Yingqi Peng , Xue Wang , Yuxiang Yang , Yifan Deng , Yang Liu , Haixia Pan , Xu Zhao , Xiaojing Yang , Jianli Guo , Jiajia Shan","doi":"10.1016/j.jhazmat.2025.138370","DOIUrl":"10.1016/j.jhazmat.2025.138370","url":null,"abstract":"<div><div>Microbial biodegradation of microplastic (MP) emerges as an environmentally benign and highly promising strategy for alleviating MP pollution in the ecosystem. Conventional approaches for screening MP-degrading bacteria use pollutants as the sole carbon source. Co-metabolism plays an essential role in microbial screening, as it enables the discovery of additional degrading microorganisms. However, identifying co-metabolic degrading bacteria is challenging and time-intensive, as not all microorganisms on a co-metabolic medium exhibit degradation capability, increasing the need for refined screening methods. In this study, we propose a novel hyperspectral imaging (HSI) approach to rapidly screen polybutylene adipate terephthalate (PBAT) degrading bacteria directly from co-metabolic media. Hyperspectral images of solid media cultures were acquired, capturing both spatial (image) and spectral (chemical) information. Chemical components in the solid medium exhibit distinct changes under the influence of degrading and non-degrading bacteria. By analyzing the spectral information using machine and deep learning algorithms, it was possible to monitor the PBAT concentration changes in the solid medium, indirectly identifying degrading and non-degrading bacteria. This HSI-based model successfully screened out one kind of PBAT-degrading bacteria validated by traditional method, demonstrating potential for rapid screening of MP-degrading bacteria. With artificial intelligence (AI) technology attracting extensive attention across diverse fields, this study pioneers a new approach for the efficient screening of degrading microorganisms by combining AI algorithms with HSI. This innovative methodology is expected to display significant application potential, thus facilitating the research and development in related fields.</div></div><div><h3>Synopsis</h3><div>This study introduces a highly efficient method to screen co-metabolic MP-degrading bacteria. By combining HSI with deep learning, MP-degrading bacteria can be directly identified on co-metabolism solid media, greatly enhancing the efficiency of screening for MP-degrading microorganisms.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"493 ","pages":"Article 138370"},"PeriodicalIF":12.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853204","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 : 2025-04-21DOI: 10.1016/j.jhazmat.2025.138354
Islam M. Radwan , Chongyang Wang , Jae-Hong Kim , Haoran Wei , Dengjun Wang
The widespread use of neonicotinoid (NEO) pesticides has raised significant environmental concerns due to their toxicity. We investigated the performance of 16 nanobiochars (NBCs), including NBC produced by Douglas fir at 900 °C (Doug 900 NBC), as sustainable sorbents for removing three common NEOs from aqueous solutions: imidacloprid, clothianidin, and thiamethoxam. The NBCs showed high sorption efficiency (∼ 100 %) and fast sorption kinetics (< 0.5 h) for three NEOs at environmentally relevant concentrations (100 ng/L). The sorption efficiency of NEOs was determined by the physicochemical properties of NBCs, including specific surface area (SSA), pore volume (PV), pore diameter (PD), and elemental composition (carbon, nitrogen, and hydrogen contents). The NBCs with higher SSA and larger PV offered more abundant sorption sites, facilitating fast NEO sorption. Particularly, the Doug 900 NBC achieved ∼ 100 % removal efficiency of NEOs within 0.5 h under simulated groundwater conditions (67.5 mg/L of total dissolved solids and 10 mg/L of humic acid). The Doug 900 NBC also maintained high removal efficiency over four continuous reuse cycles. The structural equation modeling revealed that pyrolysis temperature indirectly affects NEO sorption by modifying NBC’s properties of SSA, PV, and PD. Our findings highlight the high potential of NBCs for sustainable removal of NEO pesticides in aquatic environments at environmentally relevant concentrations.
{"title":"Sorptive removal of neonicotinoid pesticides by nanobiochars: Efficiency, kinetics, and reusability","authors":"Islam M. Radwan , Chongyang Wang , Jae-Hong Kim , Haoran Wei , Dengjun Wang","doi":"10.1016/j.jhazmat.2025.138354","DOIUrl":"10.1016/j.jhazmat.2025.138354","url":null,"abstract":"<div><div>The widespread use of neonicotinoid (NEO) pesticides has raised significant environmental concerns due to their toxicity. We investigated the performance of 16 nanobiochars (NBCs), including NBC produced by Douglas fir at 900 °C (Doug 900 NBC), as sustainable sorbents for removing three common NEOs from aqueous solutions: imidacloprid, clothianidin, and thiamethoxam. The NBCs showed high sorption efficiency (∼ 100 %) and fast sorption kinetics (< 0.5 h) for three NEOs at environmentally relevant concentrations (100 ng/L). The sorption efficiency of NEOs was determined by the physicochemical properties of NBCs, including specific surface area (SSA), pore volume (PV), pore diameter (PD), and elemental composition (carbon, nitrogen, and hydrogen contents). The NBCs with higher SSA and larger PV offered more abundant sorption sites, facilitating fast NEO sorption. Particularly, the Doug 900 NBC achieved ∼ 100 % removal efficiency of NEOs within 0.5 h under simulated groundwater conditions (67.5 mg/L of total dissolved solids and 10 mg/L of humic acid). The Doug 900 NBC also maintained high removal efficiency over four continuous reuse cycles. The structural equation modeling revealed that pyrolysis temperature indirectly affects NEO sorption by modifying NBC’s properties of SSA, PV, and PD. Our findings highlight the high potential of NBCs for sustainable removal of NEO pesticides in aquatic environments at environmentally relevant concentrations.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"493 ","pages":"Article 138354"},"PeriodicalIF":12.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853244","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 : 2025-04-21DOI: 10.1016/j.jhazmat.2025.138351
Shijie Zhang , Haotian Yang , Yuanxin Wan , Yujie Shi , Xiaochan Wang , Gang Liu , Xiande Zhao , Guo Zhao
Detecting heavy metals in plants is highly important for diagnosing plant health and understanding the stress mechanisms induced by heavy metals. However, the minimally invasive detection of heavy metals in plants remains a challenge. A novel paper-based sap enrichment device (PBSED), combined with laser-induced breakdown spectroscopy (LIBS) was proposed for the minimally invasive detection of Cd(Ⅱ) and Pb(Ⅱ) in plants. The PBSED included a stainless-steel capillary and heavy metal ion enrichment filter paper (HMIE-FP). The stainless-steel capillary was inserted into the plant stem, where plant sap was transported onto the paper substrate through capillary action. The heavy metal ions (HMIs) in the plants were enriched on the HMIE-FP, and LIBS was used to detect Cd(Ⅱ) and Pb(Ⅱ) on the HMIE-FP to determine the Cd(Ⅱ) and Pb(Ⅱ) concentration within the plant. COMSOL simulations were employed to analyse the flow dynamics of plant sap within the PBSED. To increase the heavy metal enrichment amount, the HMIE-FP was modified with AuAg bimetallic nanoparticles (AuAgBNPs). The PBSED–LIBS method was applied to detect Cd(Ⅱ) and Pb(Ⅱ) in cucumber plants, and the results were strongly correlated with the inductively coupled plasma mass spectrometry (ICP–MS) results (R² = 0.99 for Cd(Ⅱ) and 0.96 for Pb(Ⅱ)). The proposed PBSED–LIBS method demonstrated high sensitivity and minimal invasiveness; thus, it is suitable for rapid, in vivo detection of HMIs in plants. These findings provide valuable insights for the development of efficient, nondestructive tools for environmental applications.
{"title":"Paper-based sap enrichment device combined with laser-induced breakdown spectroscopy for the minimally invasive detection of Cd(Ⅱ) and Pb(Ⅱ) in plants","authors":"Shijie Zhang , Haotian Yang , Yuanxin Wan , Yujie Shi , Xiaochan Wang , Gang Liu , Xiande Zhao , Guo Zhao","doi":"10.1016/j.jhazmat.2025.138351","DOIUrl":"10.1016/j.jhazmat.2025.138351","url":null,"abstract":"<div><div>Detecting heavy metals in plants is highly important for diagnosing plant health and understanding the stress mechanisms induced by heavy metals. However, the minimally invasive detection of heavy metals in plants remains a challenge. A novel paper-based sap enrichment device (PBSED), combined with laser-induced breakdown spectroscopy (LIBS) was proposed for the minimally invasive detection of Cd(Ⅱ) and Pb(Ⅱ) in plants. The PBSED included a stainless-steel capillary and heavy metal ion enrichment filter paper (HMIE-FP). The stainless-steel capillary was inserted into the plant stem, where plant sap was transported onto the paper substrate through capillary action. The heavy metal ions (HMIs) in the plants were enriched on the HMIE-FP, and LIBS was used to detect Cd(Ⅱ) and Pb(Ⅱ) on the HMIE-FP to determine the Cd(Ⅱ) and Pb(Ⅱ) concentration within the plant. COMSOL simulations were employed to analyse the flow dynamics of plant sap within the PBSED. To increase the heavy metal enrichment amount, the HMIE-FP was modified with AuAg bimetallic nanoparticles (AuAgBNPs). The PBSED–LIBS method was applied to detect Cd(Ⅱ) and Pb(Ⅱ) in cucumber plants, and the results were strongly correlated with the inductively coupled plasma mass spectrometry (ICP–MS) results (R² = 0.99 for Cd(Ⅱ) and 0.96 for Pb(Ⅱ)). The proposed PBSED–LIBS method demonstrated high sensitivity and minimal invasiveness; thus, it is suitable for rapid, in vivo detection of HMIs in plants. These findings provide valuable insights for the development of efficient, nondestructive tools for environmental applications.</div></div>","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"493 ","pages":"Article 138351"},"PeriodicalIF":12.2,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853203","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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