Journal of Hazardous Materials最新文献

{"title":"Microplastics enhance the denitrification of glycogen-accumulating organisms by regulating electronic transport in carbon-nitrogen coupling","authors":"Yuchao Liu, Jinrui Cao, Sheng Li, Xinxin He, , Shang Wang, Jingfeng Wang","doi":"10.1016/j.jhazmat.2025.137627","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137627","url":null,"abstract":"The increasing presence of microplastics (MPs) in wastewater treatment systems profoundly impacts microbial metabolism and process performance. However, the effects of MPs on the denitrification process of glycogen-accumulating organisms (GAOs) remain unclear. Herein, various types and concentrations of MPs were introduced into the activate sludge of GAOs to assess their impact on denitrification processes and to investigate the underlying mechanisms. Our findings revealed that adding 100 μm PVC increased the denitrification efficiency of GAOs by 14.6%, whereas adding 100<!-- --> <!-- -->nm PVC decreased efficiency by 8.4%. Additionally, 100<!-- --> <!-- -->nm PVC inhibited polyhydroxybutyrate (PHB) degradation, while 100 μm PVC promoted it. Furthermore, 100<!-- --> <!-- -->nm and 100 μm PVC differently influenced metabolic functions, including reactive oxygen species (ROS) levels, electron transport chain (ETC) activity, and intracellular nicotinamide adenine dinucleotide (NADH) content. Metatranscriptome analyses revealed differential expression of genes such as <em>phaC</em>, <em>CS</em>, <em>nuoL</em>, <em>CYC1</em>, and <em>nisK</em>, which are involved in carbon-nitrogen metabolism and oxidative phosphorylation. Consequently, 100 μm PVC enhanced the denitrification rate in GAOs by promoting PHB decomposition, increasing NADH electron-donating capacity, and ultimately enhancing the denitrification rate of GAOs. Our findings reveal a novel mechanism on regulating the carbon-nitrogen coupling in activated sludge under the different particle size of MPs.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"127 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463104","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}

{"title":"Environmental fate and ecotoxicity of diclofenac degradation products generated by photo-assisted advanced oxidation processes","authors":"Alicja Gackowska, Waldemar Studziński, Edyta Kudlek, Maciej Przybyłek","doi":"10.1016/j.jhazmat.2025.137708","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137708","url":null,"abstract":"Diclofenac (DCF), a widely used non-steroidal anti-inflammatory drug (NSAID), poses environmental concerns due to its persistence, bioaccumulation potential, and transformation into toxic byproducts during oxidative and chlorination processes. This study investigated the photodegradation of DCF, both directly and in the presence of oxidants, to characterize the resulting degradation products and assess their potential environmental impact.The highest efficiency for direct UV photodegradation of DCF was observed at pH 5, while the addition of oxidants significantly accelerated the degradation rate. Among the advanced oxidation processes (AOPs) examined, the H₂O₂/UV system, with a DCF:H₂O₂ molar ratio of 1:30, exhibited the most effective performance in terms of DCF removal and total organic carbon (TOC) reduction. However, ecotoxicity assessments using <em>Alivibrio fischeri</em>, <em>Daphnia magna</em>, and <em>Lemna minor</em> revealed that AOPs generally increased the toxicity of the resulting solutions compared to untreated DCF.Toxicity analyses showed that post-reaction mixtures from AOPs involving NaOCl exhibited the highest toxic effects, consistent with forming specific transformation products identified as highly toxic by ECOSAR modeling. Additionally, the analysis of the physicochemical properties of DCF and its transformation products, including solubility and organic matter affinity, suggests a limited potential for long-range transport. These compounds are more likely to bind to sediments, reducing their mobility in groundwater.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"12 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463105","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}

{"title":"Depth-dependent response of soil microbial community and greenhouse gas efflux to polylactic acid microplastics and tidal cycles in a mangrove ecosystem","authors":"Xu Zhou, Cunde Xiao, Bingwei Zhang, Xiaofan Yang","doi":"10.1016/j.jhazmat.2025.137664","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137664","url":null,"abstract":"The impacts of microplastics (MPs) on greenhouse gas emissions from mangrove soil remain poorly understood. Previous studies mostly focused on the topsoil in stable inundation state, ignoring the effects of natural tidal cycle and deep soil under different soil oxygen conditions. In this study, we analyzed soil microbial communities and greenhouse gas emissions from mangrove soils across various depths and tidal conditions (by adding seawater to create different inundation durations) in response to polylactic acid (PLA) MP exposure. Results indicated that PLA MPs addition enhances CO₂ and CH₄ release from the continuously anaerobic subsoil (100-120<!-- --> <!-- -->cm). With increasing submersion duration, PLA MPs facilitate the emission of CH₄ from the topsoil (0-5<!-- --> <!-- -->cm). An elevated C:N ratio may promote microbial nitrogen mining and organic carbon mineralization, indicating the threat of PLA MPs to soil carbon and nitrogen pools. PLA MPs addition significantly altered the bacterial community structure and reduced bacterial diversity in the subsoil. Increases in the abundance and functioning of communities associated with methanogenesis and sulfate reduction contributed to the release of CO₂ and CH₄. The duration of inundation had no significant impact on the microbial community structure in the topsoil. These findings demonstrate the accelerating effect of PLA MPs on organic carbon mineralization and carbon release, which was critically regulated by the soil depth and tidal inundation.<h3>Environmental Implication</h3>Microplastics (MPs), as emerging contaminants, are ubiquitous in mangrove ecosystems and may impact soil microbial communities and greenhouse gas emissions. However, the effects of MPs on microbial communities and carbon cycling in different soil layers remain inadequately elucidated, especially under the dynamic conditions of tidal cycles. This manuscript investigates the controlling effects of depth and tidal inundation on the impact of MPs on microbial communities and greenhouse gas emissions in mangrove soil. The findings are crucial for understanding the impact of MPs on the carbon pool in mangrove soils.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"26 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463234","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}

{"title":"Potential impacts of polyethylene microplastics and heavy metals on Bidens pilosa L. growth: Shifts in root-associated endophyte microbial communities","authors":"Ziang He, Yanxue Wang, Yiyun Fu, Xiaoxiao Qin, Wei Lan, Dongyi Shi, Yingxuan Tang, Fangming Yu, Yi Li","doi":"10.1016/j.jhazmat.2025.137698","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137698","url":null,"abstract":"This study investigates the impact of polyethylene (PE) microplastics of varying particle sizes and concentrations on the growth of <em>Bidens pilosa</em> L. and its root-associated microbial communities in cadmium (Cd) and lead (Pb) co-contaminated soil. PE microplastics had a significant impact on plant growth. Notably, at the P05-10 level, root length, root weight, and total biomass exhibited the greatest reductions by 48.9%, 44.1%, and 45.2%, respectively. Furthermore, PE microplastics reduced photosynthetic pigment levels and promoted the accumulation of reactive oxygen species, as indicated by a 264.8% and 57.2% increase in H₂O₂ content in roots and leaves. High-throughput sequencing revealed substantial alterations in the composition of bacterial and fungal communities, with stress-resilient taxa such as <em>Actinobacteria</em>, <em>Verrucomicrobiota</em>, and <em>Rhizophagus</em> exhibiting increased relative abundance. Correlation analyses indicated that variations in soil pH and enzymatic activity influenced microbial community structure, which in turn affected plant physiological responses. Functional predictions using PICRUSt2 and BugBase suggested enhanced oxidative stress tolerance, increased secondary metabolite biosynthesis, and a higher prevalence of stress-resistant phenotypes under conditions of elevated PE concentrations and smaller particle sizes. Overall, this study provides novel insights into the potential effects of microplastics on <em>Bidens pilosa</em> L., particularly in its role as a hyperaccumulator, highlighting its capacity for heavy metal uptake under microplastic exposure.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"209 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463236","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}

{"title":"Complex Release Dynamics of Microplastic Additives: An Interplay of Additive Degradation and Microplastic Aging","authors":"Zhe Xu, Jianshuai Zhang, Ruimin Qi, Qi Liu, Hongmei Cao, Feng Wen, Yixin Liao, Kaimin Shih, Yuanyuan Tang","doi":"10.1016/j.jhazmat.2025.137711","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137711","url":null,"abstract":"This study investigates the complex dynamics of additive release from microplastics in aquatic environments under natural ultraviolet (UV) radiation, which is critical for assessing ecotoxicological impacts and developing pollution remediation strategies. We focused on release kinetics of additives (Dimethyl phthalate (DMP), Dibutyl phthalate (DBP), Di(2-ethylhexyl) phthalate (DEHP), Bisphenol A (BPA) and Decabromodiphenyl ether (BDE-209)) from polyvinyl chloride (PVC), polyethylene (PE), and acrylonitrile-butadiene-styrene (ABS) microplastics exposed to UV light, exploring the interplay between additive release, photodegradation, and microplastic aging. Initial results showed a consistent release pattern, but under UV exposure, the release became more complex due to additive degradation and changes in the microplastics' structure. Factors such as polymer type, microplastic size, additive content, and environmental conditions (UV or darkness) significantly influenced the release quantity and kinetics. UV-induced additive degradation altered the concentration gradient between the microplastic and water, while aging, marked by changes in surface chemistry and internal polymer breakdown, accelerated additive release. By applying Inner Particle Diffusion (IPD) and Aqueous Boundary Layer Diffusion (ABLD) models, we demonstrated how UV-induced degradation and aging affected key parameters like the diffusion and partition coefficients, impacting the overall release process. These insights lay the foundation for understanding the environmental risks posed by microplastic additives and developing strategies to mitigate their impact in aquatic ecosystems.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"29 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143470908","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}

{"title":"Removal of Antibiotic Resistance from Wastewater in Aquatic Ecosystems Dominated by Submerged Macrophytes","authors":"Rong-min Zhang, Xiao-jie Chen, Ya-fei Li, Hui-zhen Tan, Wen-qing Huang, Ling-lin Li, Xin-ting Li, Jie Xie, Yun-xiao Chong, Xin-lei Lian, Xian-hui Huang","doi":"10.1016/j.jhazmat.2025.137706","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137706","url":null,"abstract":"Submerged macrophytes in constructed wetlands (CWs) can effectively improve wastewater quality. However, the effectiveness of different submerged macrophytes in removing antibiotic-resistant genes (ARGs) from wastewater remains unexplored. Additionally, wastewater loading in wetlands can fluctuate due to climate change, potentially affecting ARG removal efficiency. In this study, we systematically constructed microscale wetlands using three submerged plants: <em>Vallisneria natans</em> (<em>VN</em>), <em>Sagittaria pygmaea</em> (<em>SP</em>), and <em>Myriophyllum spicatum</em> (<em>MS</em>). Their effectiveness in ARGs removal was analyzed at hydraulic retention times (HRTs) of 0, 3, 6, and 9 days under high (HWL) and low (LWL) wastewater loading. The results indicated that under LWL conditions, all ecosystems exhibited a higher reduction rate of ARG diversity and relative abundance (RS) compared to HWL conditions. The efficiency of all ecosystems in reducing ARG diversity and abundance followed the order: <em>MS</em> &gt; <em>VN</em> &gt; <em>SP</em>. The <em>sul</em> resistance gene exhibited the highest RS and was degraded most rapidly in all samples. Additionally, sulfadimidine concentrations significantly decreased under LWL conditions, which was significantly correlated with <em>sul</em> reduction. Chemical oxygen demand, total phosphorus, total nitrogen, ammonium nitrogen, and nitrate nitrogen were identified as key factors influencing bacterial and ARG profiles. The increase in rhizobial bacteria and decrease in aerobic denitrifying bacteria likely contributed significantly to ARGs removal. This study offers new insights into ARG removal by submerged macrophytes in CWs, emphasizing the role of wastewater loading and the potential of <em>MS</em> in enhancing ARG degradation. These findings enhance CW design and management to mitigate ARG contamination in wastewater.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"7 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463107","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}

{"title":"Broad-spectrum antibody against thiazides and degraded salamide and immunoassay establishment for simultaneous detection","authors":"Yunlong Li, Zhiwei Liu, Hewen Luo, Yu Tang, Liangwen Pan, Shiwei Zhang, Xin-an Huang, Jiaxin Wen, Jiahong Chen, Hongtao Lei","doi":"10.1016/j.jhazmat.2025.137700","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137700","url":null,"abstract":"The illegal additive thiazides and degraded salamide in food supplements poses significant health risks and regulatory challenges. However, the structural differences between thiazides and salamide complicate the hapten design for immunoassay detection. In this study, we first outlined the common skeleton of thiazides and their shared epitopes with salamide through molecular overlap and atomic charge distribution analysis. Several haptens were rationally designed based on the private epitope of salamide and the shared epitopes with thiazides, assisted by computer-aided chemical analysis. Subsequently, the resultant monoclonal antibody exhibited broad specificity for thiazides (IC₅₀ value = 21.43 to 358.76<!-- --> <!-- -->ng/mL) and salamide (IC₅₀ value = 0.76<!-- --> <!-- -->ng/mL). The immunoassay affinities of 5 of these thiazides are reported for the first time. Further elucidation of the intrinsic recognition mechanism was achieved through homology modeling and molecular docking, clarifying the antibody's diverse recognition spectrum. Finally, we established a rapid, reliable colloidal gold-based immunochromatography strip for simultaneous detecting total thiazides and degraded salamide in food supplements and surface water sample for the first time. The cut-off value was as low as 7.5<!-- --> <!-- -->ng/mL, which was 32 times more sensitive than that of established immunoassays for thiazides.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"19 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463129","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}

{"title":"Bioremediation of multiple heavy metals through biostimulation of Microbial-Induced Calcite Precipitation at varying calcium-to-urea concentrations","authors":"Carla Comadran-Casas, Cise Unluer, Adrian M. Bass, John Macdonald, Elmira Khaksar Najafi, Liene Spruzeniece, Caroline Gauchotte-Lindsay","doi":"10.1016/j.jhazmat.2025.137691","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137691","url":null,"abstract":"Studies on heavy metal bioremediation through microbial-induced calcite precipitation (MICP) typically involve bioaugmentation approaches that use low calcium-to-urea ratios and target single contaminants. We present an investigation on the efficiency of soils’ autochthonous ureolytic bacteria to simultaneously remediate multiple heavy metals and sequester carbon through urea hydrolysis and MICP on an urban soil containing excess Pb, Zn, Mn, Sr, Ba and Al. Soils were treated at a fixed urea concentration of 333<!-- --> <!-- -->mM and increasing calcium content of 0, 50 and 333<!-- --> <!-- -->mM to provide a range of carbonation potential. Urea hydrolysis (Ca²⁺ = 0<!-- --> <!-- -->mM) did not produce quantifiable soil carbonation and mobilised Mn into the exchangeable fraction. Ca²⁺ at 50<!-- --> <!-- -->mM delayed soils’ autochthonous ureolytic activity and produced limited carbon and heavy metal mineralisation (CaCO₃ = 0-0.7%). 333<!-- --> <!-- -->mM of Ca²⁺ inhibited urea hydrolysis however, if applied following urea hydrolysis, both carbon (CaCO₃ = 4-7%) and heavy metal (Pb, Zn, Mn, Sr and Ba) mineralisation were maximised. Urea hydrolysis and MICP were most successful in removing Pb and Zn from the exchangeable fraction (&gt;85%). However, the higher pH induced by urea hydrolysis at Ca²⁺ = 0-50<!-- --> <!-- -->mM (~9) compared to 333<!-- --> <!-- -->mM (~8.5) favoured partition of Pb into the oxyhydroxide fraction. Instead, partition of Zn, Mn, Sr and Ba into the soil carbonate fraction increased with increasing calcium, whilst there was no evidence of Al carbonation. The results of this study evidence the feasibility of biostimulation approaches to remediate multiple contaminants simultaneously through MICP, provide insights into multiple element’s behaviour during urea hydrolysis and MICP and demonstrate carbon and element mineralisation are maximised at equimolar calcium-to-urea ratio of 333<!-- --> <!-- -->mM.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"29 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463237","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}

{"title":"Effects of microplastics accumulation and antibiotics contamination in anaerobic membrane bioreactors for municipal wastewater treatment","authors":"Kanming Wang, Aoran Li, Zhixuan Qiu, Banglong Wang, Xizheng Jin, Lingling Hu, Hongyu Wang","doi":"10.1016/j.jhazmat.2025.137705","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137705","url":null,"abstract":"Municipal wastewater treatment plants are the main collection points for plastics and antibiotics. Anaerobic membrane bioreactor (AnMBR) is one the most potential municipal wastewater treatment technologies. This study evaluated the impact of microplastic (aged polyvinyl chloride, aged PVC, 1.5<!-- --> <!-- -->g/L), antibiotics (ciprofloxacin, CIP, 100<!-- --> <!-- -->μg/L) and their interaction effect on AnMBR treatment performance and membrane fouling. Results showed that the inhibition of CIP on AnMBR organic removal and methane production was intensified, owing to the CIP adsorption on aged PVC. The enzyme activities of electron transport (ETS), adenosine triphosphate (ATP) and F420 were also significantly restrained by 47~52% with combined exposure. The combined effects also significantly aggravated the membrane fouling of AnMBR, which shorted the membrane operational period by half due to more soluble microbial products (SMP) secretion. The microbial diversity analyses indicated that aged PVC and CIP addition can accumulate some main anaerobic fermentation bacteria but inhibit the archaea. The abundance of related enzyme in the acetoclastic and hydrogenotrophic methanogenesis decreased with the sole aged PVC and CIP addition and severely inhibited with their combine effect. The absolute abundance <em>mcrA</em> significantly reduced by 92% with combined exposure, validating the negative impact on methanogenic activity. These findings provide valuable insight into the AnMBR implementation in complex wastewater treatment.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"36 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463131","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}

{"title":"Efficient fabrication of hunting trap inspired degradable film with enhancing antimicrobial activity and reducing fomite transmission","authors":"Yu Du, Kai Mu, Xiaolong Li, Cheng Li, Chao Ding, Pingxu Chen, Ting Wu, Heng Xie, Jinping Qu","doi":"10.1016/j.jhazmat.2025.137682","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137682","url":null,"abstract":"The extensive application of medical protective polymers has significantly contributed to preserving human lives and well-being. Due to the widespread use of protective polymer materials and their non-degradable nature, environmental and biological pollution issues are becoming increasingly severe. To address the environmental pollution problems caused by traditional polymer materials, this study proposes an efficient and successive method for the mass production of polylactic acid/graphene oxide (MNPG) films with the hunting trap-inspired pyramidal micro/nanostructure by combining micro-extrusion compression molding and electrostatic flocking. The hunting trap-inspired pyramidal micro/nanostructure enhances liquid repellency and antibacterial performance, effectively reducing contaminant adhesion. The MNPG film exhibits an impressive antibacterial efficacy, inhibiting bacterial growth by up to 98.1%, demonstrating excellent repellency against common liquids, such as blood, bovine serum albumin, milk, and tea, leaving no detectable residue. This provides initial protection against bacterial adhesion and dissemination as well as the spread of pollutants. Importantly, the film retains only 30<!-- --> <!-- -->wt% of its original mass after 14 days in degradation experiments, indicating favorable biodegradability. This method offers a novel approach for designing sustainable protective materials and holds potential to replace traditional non-degradable polymers.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"50 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451804","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}