Environmental Research最新文献

{"title":"High temperature and humification reduce DNA viruses in food waste composting","authors":"Miaolian Hua ,&nbsp;Yanbing Xiao ,&nbsp;Xiaofei Xue ,&nbsp;Lili Zhang ,&nbsp;Baolan Hu","doi":"10.1016/j.envres.2025.122177","DOIUrl":"10.1016/j.envres.2025.122177","url":null,"abstract":"<div><div>The fate of DNA viruses (phage and non-phage viruses) was investigated in a full-scale food waste (FW) facility. Composting reduced DNA virus abundance in FW by 74.8–88.9 % and diversity by 67.8–69.7 %, regardless of phage and non-phage viruses. <em>Firmicutes and Proteobacteria</em> were identified as the primary hosts, with most phages encoding functional genes linked to carbon and nitrogen metabolism. Despite the beneficial role of DNA viruses, their abundance in untreated food waste was 4.7 times higher than in soil. High temperature and humification (indicated by humus content and germination index (GI)) could inhibit both phage and non-phage viruses in FW, leading to a reduction in their abundance, similar to what is observed in soil. In conclusion, DNA viruses, particularly phages, contribute to the composting process by participating in carbon and nitrogen metabolism. Enhancing the thermophilic period and humification degree may help mitigate the risks associated with these viruses in composting products.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"283 ","pages":"Article 122177"},"PeriodicalIF":7.7,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144313837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Causal relationship between PM2.5 exposure and population-level antidepressant medication use: A Mendelian randomization study using GWAS data from multi-biobank","authors":"Yeqin Liu ,&nbsp;Feiyi Xu ,&nbsp;Zhongyuan Lv ,&nbsp;Kefeng Li ,&nbsp;Xiaomin Dong","doi":"10.1016/j.envres.2025.122192","DOIUrl":"10.1016/j.envres.2025.122192","url":null,"abstract":"<div><div>Exposure to fine particulate matter (PM2.5) has been associated with an increased risk of depression; however, causal evidence regarding its influence on the clinical burden of depressive symptoms remains limited. In this study, we conducted a two-sample Mendelian randomization (MR) analysis to assess whether genetically predicted chronic PM2.5 exposure is causally associated with the likelihood of antidepressant medication use. Antidepressant use, as derived from national prescription registers, serves as an objective, treatment-based proxy likely indicative of greater symptom burden, capturing clinically managed depression at the population level. Genome-wide association study (GWAS) summary statistics were utilized, involving data on PM2.5 exposure (n = 423,796 European participants) and antidepressant medication usage (131,176 cases, 104,642 controls). Forty-eight single-nucleotide polymorphisms (SNPs) associated with PM2.5 exposure (p &lt; 5 × 10^-6) were selected as instrumental variables. Primary analyses employed the inverse-variance weighted (IVW) method, complemented by comprehensive sensitivity analyses. Our results revealed that genetically predicted PM2.5 exposure was associated with a higher prevalence of antidepressant use (IVW OR = 1.496; 95 % CI: 1.238–1.808; p &lt; 0.001). Findings were consistent across multiple MR methods, including weighted median and simple mode analyses. Sensitivity analyses identified no evidence of directional pleiotropy or influential outlier SNPs. In conclusion, this Mendelian randomization study provides genetic evidence supporting a potential causal relationship between chronic PM2.5 exposure and an increased prevalence of antidepressant medication use, which may be indicative of greater depressive symptom burden at the population level. These findings suggest that reducing air pollution could be a valuable strategy for mitigating the global burden of depression.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"283 ","pages":"Article 122192"},"PeriodicalIF":7.7,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144330626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Mechanistic insights into CO2 adsorption on cementitious surfaces: Coverage and pre-hydration effects from first-principles calculations","authors":"Zirou Liu ,&nbsp;Xinhang Xu ,&nbsp;Danial Jahed Armaghani ,&nbsp;Dino Spagnoli ,&nbsp;Chongchong Qi","doi":"10.1016/j.envres.2025.122163","DOIUrl":"10.1016/j.envres.2025.122163","url":null,"abstract":"<div><div>A deep understanding of the mechanisms of carbon dioxide (CO₂) adsorption on cementitious material surfaces is crucial for optimizing their CO₂ sequestration capabilities. In this study, we employed first-principles calculations to investigate the behaviour of CO₂ adsorption on the β-C₂S(100) and M3-C₃S(001) surfaces across multiple coverage levels. Results showed that the total adsorption energy became increasingly negative with higher CO₂ coverage, whereas the average adsorption energy per CO₂ molecule on the two surfaces displayed differing trends. At higher coverage levels, adsorption behaviour was influenced by site saturation, steric hindrance, and electrostatic interactions. The M3-C₃S(001) surface exhibited stronger and more stable CO₂ adsorption than the β-C₂S(100) surface, primarily due to the presence of oxygen ions (O_i). DFT analysis, including the partial density of states (PDOS) and crystal orbital Hamilton population (COHP) calculations, revealed a weakening of the Ca-O bonds at high coverages. CO₂ adsorption on pre-hydrated surfaces was also explored, showing a reduced CO₂ sequestration capacity on both materials. Overall, this study sheds light on the fundamental mechanisms of CO₂ adsorption on cementitious surfaces, providing atomistic insights into the interaction between surface pre-hydration and CO₂ adsorption, and therefore offering valuable guidance for developing more efficient CO₂ capture and storage methods in the cement industry.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"283 ","pages":"Article 122163"},"PeriodicalIF":7.7,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144336137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"EPS-mediated coupling between birnessite and degradation bacteria enhances phenanthrene removal","authors":"Junxin Jia ,&nbsp;Yaqi Jiao ,&nbsp;Jiaying Gu ,&nbsp;Tianyuan Zhang ,&nbsp;Qin Zhou ,&nbsp;Hui Li ,&nbsp;Sa Wang ,&nbsp;Hongliang Guo ,&nbsp;Hongtao Shi ,&nbsp;Li Li","doi":"10.1016/j.envres.2025.122110","DOIUrl":"10.1016/j.envres.2025.122110","url":null,"abstract":"<div><div>Phenanthrene (PHE) serves as a representative polycyclic aromatic hydrocarbon (PAH) that poses a significant risk to ecosystems and human health owing to its persistence and biotoxicity. A novel bio-mineral system was developed by integrating natural birnessite with the PHE-degrading strain <em>Novosphingobium</em> sp. HDJX-2 to address the need for effective remediation, which achieved the complete degradation of PHE within 72 h. The mechanistic analysis demonstrated that the enhanced degradation efficiency resulted from multidimensional synergism between minerals and microbes. The metabolic activity of HDJX-2 modified the microstructure of birnessite and increased its active sites, whereas birnessite simultaneously stimulated cellular activity and markedly promoted the secretion of bound extracellular polymeric substances (B-EPS). Additionally, birnessite induced the expression of more hydrophobic proteins, thereby enhancing the recognition and binding capacity of EPS for hydrophobic PHE molecules. This structural modification was accompanied by increased glucose (Glc) and glucosamine (GalN) contents, which reduced microbial aggregation and improved cell dispersion, facilitating pollutant accessibility and metabolism. Furthermore, the phenolic compounds in EPS were involved in synergistic coupling with birnessite. This contributed to the formation of high-molecular-weight, highly aromatic, and highly unsaturated polymeric products, further enhancing the PHE adsorption, enrichment, and catalytic degradation. This study offers theoretical support and practical framework for the development of efficient and sustainable PAH remediation strategies.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"284 ","pages":"Article 122110"},"PeriodicalIF":7.7,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144336135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Toward greener MOFs in phosphate adsorption: A performance-based approach to green MOF selection","authors":"G. Alatrista,&nbsp;A. El Hanandeh","doi":"10.1016/j.envres.2025.122185","DOIUrl":"10.1016/j.envres.2025.122185","url":null,"abstract":"<div><div>This study presents a performance-driven selection of green metal-organic frameworks (MOFs), integrating yield, cost-effectiveness, and adsorption efficiency, critical yet often overlooked criteria in MOF development. The selected MOFs were synthesized using environmentally benign solvents, ethanol (EtOH) and deionized water (DIW), under mild temperature conditions, offering a scalable and sustainable route. Three zirconium-based green MOFs were identified: one Terephthalic acid (TPA)-based (GR2-MOF(80)) and two Pyromellitic acid (PMA)-based (GR8-MOF(25) and GR10-MOF(25)). These materials outperformed commercial benchmarks such as UIO-66, exhibiting high phosphate adsorption capacities while following Langmuir isotherm behaviour, pseudo-second-order kinetics, and intra-particle diffusion mechanisms. Modifications in the activation process further enhanced adsorption, achieving up to 83 mg PO₄·g⁻¹ for the TPA-based MOF and 221 mg PO₄·g⁻¹ for the PMA-based MOFs. Structural characterization via scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) confirmed the crystalline nature of the TPA-based MOF and the amorphous character of the PMA-based ones, supporting chemisorption as the dominant mechanism. Beyond capacity, these MOFs demonstrated high selectivity in both binary and complex media and retained efficiency over multiple reuse cycles, reinforcing their practical potential for environmental applications. More than a case study on phosphate removal, this work demonstrates how a rational selection framework can guide the development of environmentally sustainable MOFs for broader applications in water treatment and beyond.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"283 ","pages":"Article 122185"},"PeriodicalIF":7.7,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144320803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Ecotoxicological effects of cellulose acetate nanoplastic derived from cigarette butts on earthworm (Allolobophora caliginosa): Implications for soil health","authors":"Zeinab Bakr ,&nbsp;Gehad N. Aboulnasr ,&nbsp;Mohamed Abd El-Aal ,&nbsp;Naser A. Elshimy ,&nbsp;Shimaa Mohamed Said","doi":"10.1016/j.envres.2025.122189","DOIUrl":"10.1016/j.envres.2025.122189","url":null,"abstract":"<div><div>Plastic pollution from nanoplastics (NPs) poses a growing environmental threat, with cigarette butts (CBs) representing a significant yet often overlooked source of terrestrial contamination. This study investigates the ecotoxicological effects of cellulose acetate nanoplastics (CA-NPs) derived from both smoked (SCB-NPs) and unsmoked (USCB-NPs) on the earthworm <em>Allolobophora caliginosa</em>, using commercially available CA-NPs (CCA-NPs) for comparison. The NPs were characterized and tested for their impact on earthworm endpoints such as mortality, growth, oxidative stress biomarkers, and genotoxicity. SCB-NPs exhibited the most severe toxic effects, leading to increased mortality, growth inhibition, heightened oxidative stress parameters and significant DNA damage. USCB-NPs and CCA-NPs also induced notable adverse effects, though to a lesser extent than SCB-NPs. Markers of oxidative stress were elevated across all NPs exposures, accompanied by suppressed antioxidant enzyme activities and an increase in detoxification enzyme activity. Genotoxicity analysis using the Comet assay confirmed greater DNA damage in earthworms exposed to SCB-NPs. These findings suggest that combustion by products intensify the toxicity of CB-derived NPs, posing a serious risk to soil organisms and ecosystem health. The results emphasize the urgent need for improved cigarette waste management to mitigate the release and impact of toxic nanoparticles in terrestrial environments.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"284 ","pages":"Article 122189"},"PeriodicalIF":7.7,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144470214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Gel-fouling on the microfiltration membrane for wastewater reclamation and its suppression by using electric fields: from the viewpoints of spatiotemporal and force analysis","authors":"Xinran Wang ,&nbsp;Rui Wang ,&nbsp;Xiangyu Tian ,&nbsp;Qi Shen ,&nbsp;Liang Feng ,&nbsp;Dingyu Xing","doi":"10.1016/j.envres.2025.122157","DOIUrl":"10.1016/j.envres.2025.122157","url":null,"abstract":"<div><div>Microfiltration membrane technology holds promising applications in addressing contemporary water resources and environmental challenges for wastewater treatment, but membrane fouling remains a pivotal bottleneck hindering its advancement, especially that it is still unclear for the formation of gel-fouling on the membrane surface, from its characteristics to development process. Applying electric field onto the microfiltration membrane filtration to control membrane fouling has the advantages of safety, green and easy-manipulation. This study explored the gel-fouling characteristics of typical foulants such as sodium alginate (SA), bovine serum albumin (BSA), humic acid (HA) filtered by polyvinylidene fluoride (PVDF) microfiltration membrane, and its dynamic development. Hermia model was introduced to simulate and quantify the membrane flux, and it was observed that SA resulted in the most severe gel-fouling. Gel-fouling could be formed with the start of filtration, lasted for a period of time, and then to produce a dense fouling layer on the membrane surface. It is then suggested that the fouling control time should be synchronized with the start of filtration. Effects of different factors on the electric field control for gel-fouling were investigated, and the applied electric field in the same direction with permeation was better than that under the opposite one. When filtering 30 mg/L SA solution under an electric field, gel-fouling can be well controlled. Force analysis showed that enhanced electrophoretic force was effective in alleviating membrane fouling. The obtained results would advance the understanding of the gel-fouling mechanisms in microfiltration technology for wastewater treatment, particularly focusing on its spatiotemporal development. Moreover, by leveraging electric fields to regulate fouling, this strategy offers a scientific foundation and technical backbone for membrane separation that strived for low energy consumption and high operational efficiency.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"283 ","pages":"Article 122157"},"PeriodicalIF":7.7,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144330623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"The nonlinear association between temperature anomaly and serum lipid profiles: A nationwide longitudinal panel study","authors":"Jian Guo ,&nbsp;Hailu Zhu ,&nbsp;Zhaoyang Pan ,&nbsp;Xueyan Han ,&nbsp;Qi Wang ,&nbsp;Yicong Wang ,&nbsp;Jiarun Mi ,&nbsp;Wei Sun ,&nbsp;Yuanli Liu ,&nbsp;Teng Wang ,&nbsp;Tianjia Guan","doi":"10.1016/j.envres.2025.122193","DOIUrl":"10.1016/j.envres.2025.122193","url":null,"abstract":"<div><h3>Background</h3><div>Temperature anomaly (TA) caused by global climate change has been a risk factor for various health outcomes, but few studies reported its effects on serum lipid profiles. Therefore, we conducted a large population-based longitudinal panel study to investigate the association between TA and serum lipid profiles.</div></div><div><h3>Methods</h3><div>Individuals with at least two lipid tests and completing questionnaire surveys were included. Monthly TA were calculated based on an assimilated dataset of in situ observations, satellite remote sensing measurements and weather research forecast simulations. The TA values were categorized as three types: TA &gt; 0 (sudden warming), TA &lt; 0 (sudden cooling) and TA = 0 (no significant change). A fixed effect model was used to quantify the associations between lipid profiles and TA.</div></div><div><h3>Results</h3><div>A total of 295,233 individuals (689,621 visits) were included. Each increment in TA was significantly associated with increased risk of hyperbetalipoproteinemia [relative risk (RR) = 1.048, 95 % confidence interval (CI): 1.028–1.069], hypoalphalipoproteinemia (RR = 1.191, 95 %CI: 1.138–1.247), and hypercholesterolemia (RR = 1.056, 95 %CI: 1.033–1.080). Their corresponding attributable fractions were 4.62 % (95 %CI: 2.72 %–6.48 %), 16.06 % (95 %CI: 12.12 %–19.82 %) and 5.30 % (95 %CI: 3.19 %–7.37 %). The exposure-response relationships between TA and the risk of four types of dyslipidemia were estimated as J-shaped nonlinear curves centered at the TA value of zero. Sudden warming appeared to have a more pronounced effect on the risk of hyperbetalipoproteinemia, hypoalphalipoproteinemia and hypercholesterolemia than sudden cooling, whereas the opposite trend is observed for hypertriglyceridemia. All these associations were modified by climate zones and individual characteristics.</div></div><div><h3>Conclusion</h3><div>Temperature anomaly associated with increased risk of dyslipidemia, with varying associations across different climate zones and population subgroups. These results provide insights for the development of policies aiming at the prevention of dyslipidemia.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"284 ","pages":"Article 122193"},"PeriodicalIF":7.7,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144336141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Amphiphilic Janus nanoparticles for effective foam fractionation of perfluorooctanoic acid (PFOA): Effect of modifier type","authors":"Yanfei Li ,&nbsp;Zhuoxuan Zhang ,&nbsp;Yanyan Lv ,&nbsp;Yazhu Pei ,&nbsp;Linlin Ding ,&nbsp;Zhijun Zhang ,&nbsp;Nan Hu","doi":"10.1016/j.envres.2025.122186","DOIUrl":"10.1016/j.envres.2025.122186","url":null,"abstract":"<div><div>Perfluorooctanoic acid (PFOA), a persistent organic pollutant, is gaining attention for its detrimental effects on human health and ubiquity in aquatic environments. Herein, we introduce a novel foam fractionation method that uses Janus nanoparticles as foam stabilizers and collectors for the efficient removal and enrichment of PFOA from water. The amphiphilic Janus-SiO₂ nanoparticles (SNPs) were successfully synthesized through anisotropic modification with perfluoroalkylsilanes and aminosilanes. The amphiphilicity of constructed F₁₇-SNPs-N₂ enhanced foam stability due to high detachment energy and a bridging mechanism. The fluorine and amino groups on F₁₇-SNPs-N₂ surface facilitated efficient PFOA adsorption via fluorine-fluorine interactions, hydrophobic-hydrophobic interactions, hydrogen bonding, and electrostatic attraction, as supported by experimental analysis and DFT calculation. We also explored the mechanisms governing foam fractionation under different parameters. Under optimal conditions, we achieved PFOA removal efficiencies and enrichment ratios of 98 % and 98, respectively, within a bubbling duration of 180 s. F₁₇-SNPs-N₂, as a bifunctional material for PFOA foam fractionation, demonstrated reusability and excellent performance even in the presence of competing contaminants, highlighting its broad environmental application potential. This research provides a strategy for designing amphiphilic Janus-based foam fractionation agents through post-modification and enhances our understanding of the mechanisms behind highly efficient PFOA foam fractionation.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"283 ","pages":"Article 122186"},"PeriodicalIF":7.7,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144320794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 adsorption of phosphate on magnetic Fe3O4@MOF@LDH superstructures: Kinetics, thermodynamics, and mechanisms","authors":"Zhang Liu ,&nbsp;Wei Han ,&nbsp;C. Marquina ,&nbsp;Joseph K.C. Kwan ,&nbsp;M. Ricardo Ibarra ,&nbsp;King Lun Yeung","doi":"10.1016/j.envres.2025.122183","DOIUrl":"10.1016/j.envres.2025.122183","url":null,"abstract":"<div><div>Phosphorus contamination in water systems poses a significant environmental threat, necessitating the need for effective phosphate removal methods. A novel magnetic composite, magnetic Fe₃O₄@MIL-100(Fe)@Mg-Al layered double hydroxide (LDH), synthesized through a solid-state transformation of MIL-100(Fe) from Fe₃O₄ followed by in-situ growth of Mg-Al LDH. This innovative hierarchical core/shell/shell structure leverages the magnetic properties of Fe₃O₄ for easy separation, utilizes MIL-100(Fe) to grow and orient the LDH, and exploits the large ion exchange capacity of Mg-Al LDH nanosheets for efficient phosphate capture. Our experiments demonstrated rapid phosphate removal exceeding 95 % within 10 min, achieving a final concentration of 25.5 μg/L from an initial concentration of 1 mg/L. The adsorption kinetics conformed to a pseudo-second order model, and isothermal data fit the Langmuir model. Thermodynamic analysis indicated spontaneous and exothermic adsorption, with an activation energy of 15.76 kJ mol⁻¹. Enthalpy and entropy findings suggest a decrease in randomness during the adsorption process. Density Functional Theory (DFT) calculations revealed that phosphate ions interact strongly with Al sites in the LDH and Fe-O nodes in MIL-100(Fe). Phosphate recovery and sorbent regeneration are accomplished through a simple alkaline wash, which concentrates the recovered phosphate by 4.8 times. This study highlights the potential of Fe₃O₄@MIL-100(Fe)@Mg-Al LDH as a sustainable and efficient adsorbent for phosphate pollution mitigation, offering significant contributions to environmental protection and resource conservation.</div></div>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":"283 ","pages":"Article 122183"},"PeriodicalIF":7.7,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144320805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}