环境科学与技术Pub Date : 2025-05-26DOI: 10.1021/acs.est.5c00673
Kai Yang,Fei Xu,Xinyu Xing,Jing Wei,Qing-Lin Chen,Jian-Qiang Su,Li Cui
{"title":"Microplastics Pose an Elevated Antimicrobial Resistance Risk Than Natural Surfaces via a Systematic Comparative Study of Surface Biofilms in Rivers.","authors":"Kai Yang,Fei Xu,Xinyu Xing,Jing Wei,Qing-Lin Chen,Jian-Qiang Su,Li Cui","doi":"10.1021/acs.est.5c00673","DOIUrl":"https://doi.org/10.1021/acs.est.5c00673","url":null,"abstract":"The pervasive presence of antimicrobial resistance (AMR) in various ecosystems threatens global health, especially in persistent biofilm states. Both anthropogenic and natural surfaces in environments provide ideal habitats for biofilm development. Microplastics (MPs), as emerging and rapidly proliferating anthropogenic pollutants, are of particular concern due to their unique physicochemical properties and ubiquity across environments. However, it remains unclear whether biofilms on MPs pose a higher AMR risk compared with natural surfaces. Here, we employed an integrative approach combining phenotypic and genotypic AMR analysis via single-cell spectroscopy and high-throughput quantitative PCR to systematically compare AMR risks on 5 MPs (polyethylene, polystyrene, poly(vinyl chloride), polylactic acid, and Tetra Pak) and 3 natural surfaces (wood, rock, and glass) in an urban aquatic ecosystem. Our results revealed that MPs harbored a higher proportion of metabolically active antibiotic-resistant bacteria and more high-risk antibiotic resistance genes than natural surfaces. By incorporating phenotypic and genotypic AMR with three additional biofilm-related risk factors, including biofilm biomass, microbial activity, and pathogen abundance, the health risk of AMR was quantified and found to be highly dependent on surface types. MPs exhibited, on average, a 10-fold higher health risk than natural surfaces. A structural equation model further identified surface hydrophobicity and microbial diversity as pivotal factors determining AMR risks across different surfaces. This systematic comparison provides new insights into the real-world environmental impact of MPs pollution and underscores the necessity of integrating plastic pollution control into AMR management strategies.","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"7 1","pages":""},"PeriodicalIF":9.028,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144146101","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}
环境科学与技术Pub Date : 2025-05-25DOI: 10.1021/acs.est.5c01478
Sandeep Bose,Jinheng Xu,Kyoungmun Lee,Richard N Zare
{"title":"Catalyst-Free Production of Urea from Nitrate and Carbon Dioxide in Water Microdroplets.","authors":"Sandeep Bose,Jinheng Xu,Kyoungmun Lee,Richard N Zare","doi":"10.1021/acs.est.5c01478","DOIUrl":"https://doi.org/10.1021/acs.est.5c01478","url":null,"abstract":"We report a simple, one-step selective process for producing urea (NH2CONH2) from nitrate (NO3-) dissolved in aqueous microdroplets when sprayed with carbon dioxide (CO2) as the nebulizing gas. This synthesis is accomplished without any catalyst or application of any external electric potential or radiation. The electric field at the gas-water interface is believed to drive the reaction process, resulting in urea being dissolved in the water microdroplets, which is the source of hydrogen for this conversion. The highest urea production rate of ∼118 μM h-1 is achieved with optimized parameters. The selectivity of urea formation in this process is >99%. Mass spectrometric studies were conducted to identify the reaction intermediates involved in the conversion. Density functional theory (DFT) calculations support our experimental observations by providing insights into the reaction pathways for the transformation. This eco-friendly approach for urea synthesis consumes CO2, thereby transforming a greenhouse gas into a value-added product.","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"58 1","pages":""},"PeriodicalIF":9.028,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144136714","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}
环境科学与技术Pub Date : 2025-05-25DOI: 10.1021/acs.est.5c00906
Donghui Ma,Christopher I Olivares
{"title":"Perfluoroalkane Sulfonamides and Derivatives, a Different Class of PFAS: Sorption and Microbial Biotransformation Insights.","authors":"Donghui Ma,Christopher I Olivares","doi":"10.1021/acs.est.5c00906","DOIUrl":"https://doi.org/10.1021/acs.est.5c00906","url":null,"abstract":"Perfluoroalkane sulfonamides and their derivatives (FASAs), an emerging subclass of per- and polyfluoroalkyl substances (PFAS), have attracted increasing attention due to their widespread applications, environmental persistence, and potential biological toxicity. Unlike perfluoroalkyl acids (PFAAs), FASAs can be transformed by microorganisms in the environment, producing fluorinated intermediates that eventually form stable PFAAs. A key difference of FASAs is that their pKas enable them to exist as neutral species or zwitterions, unlike all other PFAS subclasses, which are all anions. Sorption processes regulate the bioavailability of FASAs to microorganisms for transformation, driving the environmental transport and fate of FASAs. In this critical review, we provide a comprehensive overview of the classification, properties, and environmental fate of FASAs, with a focus on sorption and microbial transformation. We discuss recent advancements in understanding the sorption of FASAs onto soil, sediment, and microbial biomass, including key sorption descriptors and influencing factors. Additionally, we examine the microbial biotransformation of FASAs, detailing transformation pathways, key intermediates, transformation kinetics, and enzymes involved. Finally, we identify critical research gaps and propose future directions to advance the study of the sorption and biotransformation of FASAs in environmental systems. Mechanistic understanding of these processes is crucial for managing sites impacted with FASAs.","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"47 1","pages":""},"PeriodicalIF":9.028,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144136875","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":"Small Black Phosphorus Disrupts Vascular Development and Hematopoiesis in Zebrafish Larvae.","authors":"Zhuyi Zhang,Hua Chang,Yu Hao,Zikang Li,Hua Qin,Xinyi Yu,Jiaorong Li,Mengxi Cao,Ling Wang,Yong Liang,Li Cai,Runzeng Liu,Xiaoxi Yang,Yanhong Wei,Guibin Jiang","doi":"10.1021/acs.est.4c14490","DOIUrl":"https://doi.org/10.1021/acs.est.4c14490","url":null,"abstract":"Black phosphorus (BP), a novel two-dimensional (2D) material, has shown promising applications in the optoelectronic, biological, and medical fields in recent years. However, its increasing use may lead to its inadvertent environmental release, creating potential ecological and health risks that remain poorly understood. In this study, wild-type and transgenic zebrafish were used to evaluate the potential developmental toxicity of small-size BP (S-BP), with a lateral particle size of 154.4 ± 34.6 nm, focusing specifically on vascular growth and hematopoiesis at relatively low concentrations of 0.025, 0.05, 0.1, and 0.2 mg/L. The results indicated that S-BP adhered to the chorion and induced developmental defects. The uninflated swim bladders and decreased heart rate were observed in S-BP-exposed larvae at 120 hpf. The angioarchitectural profiling using transgenic zebrafish showed that exposure to S-BP adversely impaired blood vessel development at 72 hpf, especially in the common cardinal vein (CCV). Moreover, erythropoiesis and the flow velocity of red blood cells (RBCs) were disturbed at 120 hpf in all of the S-BP-exposed groups. Transcriptomic analysis unveiled that S-BP exposure altered gene expression related to angiogenesis, hematopoiesis, ribosome function, and transport processes. Notably, the mRNA levels of vascular and hematopoietic markers, including clec14a, nme2b.1, klf2a, slc2a1a, csf1rb, atf3, scl, and scml4, were significantly downregulated following S-BP exposure. Our findings revealed that low concentrations of S-BP exposure caused vascular and hematologic toxicity and identified CCV and RBCs as sensitive targets. This work expands our understanding of the toxicity of 2D nanomaterials and provides critical data for environmental risk assessment.","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"1 1","pages":""},"PeriodicalIF":9.028,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144136873","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}
环境科学与技术Pub Date : 2025-05-25DOI: 10.1021/acs.est.5c05506
Cedric Abele, Amira Perez, Andrey Höglund, Paula Pierozan, Magnus Breitholtz, Oskar Karlsson
{"title":"Correction to “Automated Image-Based Fluorescence Screening of Mitochondrial Membrane Potential in Daphnia magna: An Advanced Ecotoxicological Testing Tool”","authors":"Cedric Abele, Amira Perez, Andrey Höglund, Paula Pierozan, Magnus Breitholtz, Oskar Karlsson","doi":"10.1021/acs.est.5c05506","DOIUrl":"https://doi.org/10.1021/acs.est.5c05506","url":null,"abstract":"In Table 1, corrections being made to the original paper are listed, including a corrected version of Table SI3 in the accompanying Supporting Information. The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acs.est.5c05506. Additional information about <i>D. magna</i> cultures, microscope settings, staining concentrations, staining times, and 2, 24, and 48 h acute toxicity data of CCCP, 2,4-dinitrophenol, triclosan, 6PPD, and ibuprofen Correction\u0000to “Automated Image-Based Fluorescence\u0000Screening of Mitochondrial Membrane Potential in <i>Daphnia magna</i>: An Advanced Ecotoxicological Testing Tool” <span> 0 </span><span> views </span> <span> 0 </span><span> shares </span> <span> 0 </span><span> downloads </span> Most electronic Supporting Information files are available without a subscription to ACS Web Editions. Such files may be downloaded by article for research use (if there is a public use license linked to the relevant article, that license may permit other uses). Permission may be obtained from ACS for other uses through requests via the RightsLink permission system: http://pubs.acs.org/page/copyright/permissions.html. This article has not yet been cited by other publications.","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"33 1","pages":""},"PeriodicalIF":9.028,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144137140","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}
环境科学与技术Pub Date : 2025-05-23DOI: 10.1021/acs.est.5c01615
Charlotte Theys,Julie Verheyen,Lizanne Janssens,Nedim Tüzün,Maxime Fajgenblat,Robby Stoks
{"title":"The Gut Microbiome Causally Contributes to Interspecific Differences in Pesticide Sensitivity.","authors":"Charlotte Theys,Julie Verheyen,Lizanne Janssens,Nedim Tüzün,Maxime Fajgenblat,Robby Stoks","doi":"10.1021/acs.est.5c01615","DOIUrl":"https://doi.org/10.1021/acs.est.5c01615","url":null,"abstract":"Explaining interspecific differences in pesticide sensitivity is key to increasing the predictive power of ecotoxicology. Besides species traits, the gut microbiome may provide an untested additional predictive factor since it often plays a role in host defense against stressors. Therefore, we investigated the gut microbiome's causal role in shaping differences in pesticide sensitivity between two congeneric damselfly species. After an antibiotic treatment, reciprocal gut microbiome transplants were performed between pesticide-sensitive Ischnura elegans and more tolerant Ischnura pumilio larvae, with donor larvae first preexposed to either chlorpyrifos or a solvent control to match the subsequent pesticide treatments of the recipients. The gut microbiome, determined by 16S rRNA gene amplicon sequencing, of both species included pesticide-degrading bacteria, but also showed shared and species-specific responses to the pesticide. Notably, the most pesticide-sensitive combination, with the highest pesticide-induced mortality, consisted of I. elegans larvae receiving I. elegans donor gut microbiota, whereas the least sensitive combination consisted of I. pumilio larvae receiving I. pumilio donor gut microbiota, whereby the pesticide did not increase larval mortality. The two mixed donor-recipient gut microbiome combinations resulted in an intermediate sensitivity. Remarkably, I. elegans recipient larvae experienced a lower chlorpyrifos-induced mortality when they received an I. pumilio donor gut microbiome than when they received their conspecific I. elegans donor gut microbiome. Our results provide, to our knowledge, the first proof-of-evidence that the gut microbiome causally contributes to species differences in pesticide sensitivity.","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"33 1","pages":""},"PeriodicalIF":9.028,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144122240","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}
环境科学与技术Pub Date : 2025-05-23DOI: 10.1021/acs.est.5c03842
Blanca De la Nogal-Fernández, Sandra Lantaron-Santamaria, Matías Nicolas Cuenca-Castillo, Vladimir Akhrimenko, Gorka Orive, Unax Lertxundi
{"title":"Are We Throwing Away Medicines Too Early?","authors":"Blanca De la Nogal-Fernández, Sandra Lantaron-Santamaria, Matías Nicolas Cuenca-Castillo, Vladimir Akhrimenko, Gorka Orive, Unax Lertxundi","doi":"10.1021/acs.est.5c03842","DOIUrl":"https://doi.org/10.1021/acs.est.5c03842","url":null,"abstract":"Recent research has highlighted the healthcare sector as a significant contributor to the climate crisis. According to data from a 2019 study, the sector accounted for 4.4% of global net carbon emissions in the U.K. Furthermore, the study found that medications accounted for 25% of NHS carbon emissions, highlighting the substantial environmental impact of the pharmaceutical industry. (1) Medicine’s contribution to carbon emissions mainly arises from its production and transport (scope 3), as brilliantly illustrated in the article “The long journey of a benzodiazepine”. (2) In addition to their contribution to carbon emissions, the role of pharmaceuticals as micropollutants is of global concern. (3) For example, The Global Monitoring of Pharmaceuticals Project examined 258 rivers in 104 countries and found that concentrations of at least one active substance at 25.7% of sampling points were above concentrations considered safe for aquatic organisms or capable of selecting for antimicrobial resistance. (4) Regulatory authorities require comprehensive stability data for marketing approval of medicines. The expiry date, which in the United States only became mandatory for pharmaceutical companies in 1979, (5) is typically between 1 and 5 years and is usually set conservatively. Short shelf lives of medicines are also a challenge for managers of hospitals, nursing homes, and national strategic stockpiles, who have to dispose of large quantities of outdated medicines each year. (6) According to one report, hospitals alone discard more than $800 million in drugs annually in the United States. (7) The improper disposal of medicines via landfill sites or in wastewater has been linked to the contamination of ecosystems and the development of antimicrobial resistance, which is one of the top global public health and development threats according to the World Health Organization. (8) Similarly, the incineration of drug waste has been associated with harmful air pollution and increased carbon emissions. (9) In addition, there is a significant number of medicines that go unused because of their expiration date. For obvious reasons, this problem is particularly severe in resource-limited countries. (10) Zilker et al. systematically reviewed available data of the stability of finished pharmaceutical products and drug substances beyond their labeled expiry dates. They found some extreme examples, like an ampule of metamizole that was at least 53 years old, which contained 99.7% of the claimed concentration of the active ingredient, and a 72-year-old ampule! containing sodium salicylate combined with caffeine, without any noticeable degradation. They concluded that for a large proportion of medicines, it seemed reasonable to extend the expiration date well beyond five years. (11) A study showing the results of the U.S. Department of Defense/Food and Drug Administration Shelf life Extension Program (SLEP) concluded that 88% of the medicines studied (unopened in the","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"33 1","pages":""},"PeriodicalIF":9.028,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144122911","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":"PPS Gradient Filter Material with High Efficiency and Excellent Dust Removal Capacity for Industrial Flue Gas Treatment by Integrating Numerical Modeling and Melt-Blown-Lamination Technology.","authors":"Jian You,Hongxiang Zhang,Yongzhao Li,Wei Wang,Longmin Liu,Huaiyin Chen,Jianying Huang,Zuheng Wu,Meihua Wu,Bing Zhang,Xiaojun Bao,Yuekun Lai,Weilong Cai","doi":"10.1021/acs.est.4c11406","DOIUrl":"https://doi.org/10.1021/acs.est.4c11406","url":null,"abstract":"The filter material is the key to controlling flue gas pollution with bag filter technology. Surface treatment of filter media using the PTFE membrane can improve its filtration performance. Badly, the reprocessing of used filter media has become a major challenge due to the ecological impact and potential human toxicity of PTFE. Herein, a novel PPS-based gradient filtration material (mPPS-25/NF-5) with high efficiency, low resistance, and controllability was prepared by combining numerical simulation, high-temperature melt-blown process, and lamination technology with PPS micronano-embedded fiber membranes (mPPS) as the surface layer structure. Benefiting from the three-dimensional porous network structure formed by the staggered arrangement of fibers in mPPS and the effective prediction and optimization of the structural performance of the designed filter media in advance, mPPS-25/NF-5 demonstrated superior filtration performance. Specifically, compared with commercial PTFE membrane lamination filter media, the average cleaning cycle of mPPS-25/NF-5 has been improved by 188.13 s, while the average residual resistance has been reduced by 41.84 Pa, which truly realizes a high efficiency, low resistance, and long service life. This work may offer fresh insight into new materials and their rapid and controllable production methods for flue gas purification under \"ultralow emission\" measures.","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"137 1","pages":""},"PeriodicalIF":9.028,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144122241","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":"Integration of Animal, Population, and Toxicogenomic Evidence on the Hematotoxic and Immunosuppressive Effects of Environmental Exposure to PFAS Mixtures in Adolescents.","authors":"Xiushuai Du,Xueming Xu,Xing-Xuan Dong,Xinlei Liang,Yitian Wu,Zhiyuan Du,Chen-Wei Pan,Gang Liang,Yue-Zu Li,Ya-Jie Zheng,Yu Qin,Kelei Qian,Jing Xu,Xinyu Hong,Dan-Lin Li,Weiwei Zheng","doi":"10.1021/acs.est.5c01138","DOIUrl":"https://doi.org/10.1021/acs.est.5c01138","url":null,"abstract":"Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are emerging contaminants widely found in drinking water and food, potentially entering the human body through these sources. To investigate these effects, we simulated PFAS exposure doses in animal models, ranging from general population to occupational levels, and analyzed blood and spleen samples. Epidemiological studies linked PFAS exposure to immunosuppression and hematotoxicity, while toxicogenomic analyses validated the underlying biological mechanisms. PFAS exposure caused immunotoxic effects, including altered blood parameters and lymphocyte edema. Cellular abnormalities such as decreased cytoplasmic density, incomplete rough endoplasmic reticulum, chromatin condensation, lymphocyte nuclear shrinkage, and reduced mitochondrial cristae were observed. Epidemiological evidence revealed a dose-response relationship between mixed PFAS exposure and hematologic indices such as hematocrit (HCT), hemoglobin (HGB), platelet count (PLT), platelet-to-lymphocyte ratio (PLR), white blood cell count (WBC), monocyte percentage, and platelet large cell ratio (PLCR), with perfluorooctanoic acid (PFOA) playing a dominant role. Toxicogenomic analysis identified genes associated with platelets, anemia, and leukocyte function, linked to inflammation, Th17 cell differentiation, apoptosis, lipid metabolism, atherosclerosis, and JAK-STAT signaling. This study provides novel insights into the hematotoxicity and immunosuppressive effects of mixed PFAS exposure, emphasizing the need for PFAS substitution, removal, and policies addressing mixed exposures to protect public health.","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"135 1","pages":""},"PeriodicalIF":9.028,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144122388","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}
环境科学与技术Pub Date : 2025-05-23DOI: 10.1021/acs.est.4c11826
Xin Tong, Sheng-Li Hou, Yu-Xin Yuan, Zhan-Hua Zhang, Yaqi Liu, Pedro J. J. Alvarez, Wei Chen, Tong Zhang
{"title":"Sequestering Mercury in Cation Traps of Iron-Phosphate Framework via Isomorphous Substitution Minimizes Microbial Methylation","authors":"Xin Tong, Sheng-Li Hou, Yu-Xin Yuan, Zhan-Hua Zhang, Yaqi Liu, Pedro J. J. Alvarez, Wei Chen, Tong Zhang","doi":"10.1021/acs.est.4c11826","DOIUrl":"https://doi.org/10.1021/acs.est.4c11826","url":null,"abstract":"A critical consideration for the design of mercury (Hg)-removal materials is preventing microbial methylation of accumulated Hg, a process that forms the highly neurotoxic and bioaccumulative methylmercury (MeHg) during material disposal or post in situ remediation. Inspired by how natural minerals incorporate Hg impurities within crystalline structures through isomorphous substitution, we design an iron-phosphate framework (NH<sub>4</sub>)Fe<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>(OH)·2H<sub>2</sub>O (denoted as NFP) for highly effective Hg sequestration. With its large quantities of negatively charged oxygen-rich channels, NFP effectively attracts Hg and physically entraps the ions by forming Hg–O coordination bonds. Thus, NFP renders fast kinetics and high capacity for Hg adsorption, ensuring extremely low Hg release and minimal microbial methylation potential. Regulating crystal facets decreases the ion exchange energy between NFP and Hg<sup>2+</sup>, further enhancing the effectiveness of NFP. Notably, mimicking natural mineral formation not only endows NFP with high environmental compatibility and versatility. This bionic design offers a new strategy for tackling environmental pollution while avoiding generating secondary problems of even greater health concerns.","PeriodicalId":36,"journal":{"name":"环境科学与技术","volume":"130 1","pages":""},"PeriodicalIF":9.028,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144122575","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}