Journal of Hazardous Materials最新文献

{"title":"Discarded floral foam as a source for green preparation of sustainable adsorbent for quick and efficient removal of phenoxyacetic acid herbicides from waters","authors":"Yilin Yu, Yingmin Liao, Dingliang Tang, Xiaojia Huang","doi":"10.1016/j.jhazmat.2025.137300","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137300","url":null,"abstract":"Due to the high toxicity and increasing consumption, efficient removal of phenoxyacetic acid herbicides (PAAHs) from water is imperative. In current study, a new adsorbent was prepared by modifying porous carbon derived from disused floral foam with chitosan (CS) (ACFC). Density functional theory (DFT) calculation uncovered that the amino and hydroxyl groups in the introduced CS played a critical role in the efficient adsorption of ACFC towards PAAHs. Batch experiments were performed to study the adsorption behaviors and removal mechanism. Under the optimal adsorption conditions, the PAAHs residues in various environmental waters were efficiently removed within 20<!-- --> <!-- -->min by the ACFC, the removal rates varied from 81.9% to 93.8%, which remarkably better than that achieved on unmodified carbon (32.5-56.5%). The maximum adsorption capacities were in the range of 172-221<!-- --> <!-- -->μg/g. In addition, the prepared adsorbent presented excellent preparation repeatability and acceptable reusability. In comparison with reported adsorbents, the ACFC displayed some merits such as low cost, green, short removal period and high removal rate. The current study not only supplies a cost-effective and sustainable adsorbent for the removal of PAAHs residues from waters, but also opens up a new route for the recycle utilization of disused floral foam.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"56 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990091","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":"Comprehensive evaluation of antibiotic pollution in a typical tributary of the Yellow River, China: Source-specific partitioning and fate analysis","authors":"Ruimin Liu, Lu Liu, Yue Liu, Linfang Wang","doi":"10.1016/j.jhazmat.2025.137294","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137294","url":null,"abstract":"The partitioning and migrating of antibiotic residues pose a considerable pollution to the river environment. However, a source-specific approach for quantifying the fate of antibiotics is lacking. To further elucidate the migration behavior of antibiotics from different pollution sources in aquatic environments, we introduced a source-specific partition coefficient (<em>S-Kp)</em> based on Positive Matrix Factorization (PMF) model to improve the multimedia model. This study identified six sources of antibiotic pollution in the water and sediment of the Fenhe River. Farmland drainage contributed 2.6 times more antibiotics to sediment than to surface water, whereas livestock sources contributed 0.3 times less to sediment than to water. High <em>S-Kp</em> values were primarily obtained from livestock, aquaculture, and farmland drainage pollution sources, with an average <em>S-Kp</em> value exceeding 200<!-- --> <!-- -->L/kg. Sulfaquinoxaline (SQX) in sulfonamides (SAs) from livestock sources exhibited the highest <em>S-Kp</em> value of 34,740.04<!-- --> <!-- -->L/kg. The predicted environmental concentrations indicated that almost 99% of the antibiotics from the six sources remained in the water phase, with the highest contribution (99.9%) of azithromycin (AZM) from livestock, pharmaceutical wastewater, and domestic sewage. This study provides novel insights into the migration of antibiotics from source-specific partitions in multimedia environments of watersheds.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"74 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990143","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":"Do emerging alternatives pose similar soil ecological risks as traditional plasticizers? A multi-faceted analysis using earthworms as a case study","authors":"Huijuan Lv, Baoyan Mu, Haixia Xu, Xianxu Li, Xiangfeng Yao, Qian Wang, Huiyan Yang, Jia Ding, Jun Wang","doi":"10.1016/j.jhazmat.2025.137298","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137298","url":null,"abstract":"The extensive application of plasticizers has led to significant environmental issues. This study focused on the ecotoxic effects on earthworms of the traditional plasticizer di(2-ethylhexyl) phthalate (DEHP) and non-phthalate plasticizers di(ethylhexyl) terephthalate (DEHT) and acetyltributyl citrate (ATBC). At an environmentally relevant concentration (50<!-- --> <!-- -->mg/kg), significant accumulation of ROS was observed in earthworms, with a trend of DEHP &gt; DEHT &gt; ATBC, inducing oxidative stress and lipid peroxidation. DEHP, DEHT, and ATBC impaired the energy metabolism in earthworms, as evidenced by a sharp reduction in ATP content ranging from 43.2% to 75.8%, which was attributed to the disruption of glycolysis and the TCA cycle. Concurrently, the numbers of cocoons and juvenile earthworms decreased by 23.3%–76.7% and 24.2%–75.8%, respectively, indicating a significant decline in reproductive capacity. Using qPCR, AlphaFold2, and molecular docking techniques, this study is the first to report that because of their similar molecular structures, the alternatives to DEHP exhibit estrogen-like effects in earthworms, which may be a key mechanism of reproductive toxicity. These results provide valuable references and profound insights for the development of novel plasticizer alternatives and the assessment of their impact on soil ecosystems.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"5 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990090","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":"Gabapentin Impairs Visual Development in Zebrafish via Retinal Apoptosis and Thyroid Disruption","authors":"Yide He, Xiang Li, Yan Yang, Rosa Freitas, Jiansheng Zhu, Guixiang Ji, Yongjun Zhang","doi":"10.1016/j.jhazmat.2025.137299","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137299","url":null,"abstract":"Gabapentin (GBP), a pharmaceutical widely used for seizures and neuropathic pain, has emerged as a contaminant in global aquatic environments, raising concerns about its ecological impact. This study investigated the effects of environmentally relevant concentrations of GBP (0, 1, 10, 1000<!-- --> <!-- -->μg/L) on visual development in zebrafish (<em>Danio rerio</em>). Behavioral assays showed that GBP exposure enhanced light sensitivity, as indicated by a significant increase in total travel distance (TTD) in all exposure groups compared to controls. The 1<!-- --> <!-- -->μg/L and 1000<!-- --> <!-- -->μg/L exposure groups demonstrated a 41% and 37% increase in TTD, respectively (<em>p</em> &lt; 0.05). Apoptosis assays revealed dose-dependent retinal cell death, with fluorescence intensity rising by 15% at 1000<!-- --> <!-- -->μg/L (<em>p</em> &lt; 0.05). Visual acuity, measured through optokinetic response (OKR) tests, decreased significantly across all color stimuli. Angular velocity under white light decreased from 4.0 °/s in controls to 1.6 °/s at 1000<!-- --> <!-- -->μg/L (<em>p</em> &lt; 0.01) in a dose-de<em>p</em>endent manner. Retinal histopathology showed a 17% increase in ganglion cell layer thickness at 1000<!-- --> <!-- -->μg/L (<em>p</em> &lt; 0.05) in a dose-dependent manner. Thyroid hormone assays indicated significant reductions in T3 and T4 levels (<em>p</em> &lt; 0.001), with a 22% increase in the T3/T4 ratio at 1000<!-- --> <!-- -->μg/L. Gene expression analysis revealed dysregulation in apoptosis (<em>casp3a</em>, <em>ifi27</em>), thyroid (<em>tshr</em>, <em>dio1</em>), and retinal development (<em>atoh7</em>, <em>pax6a</em>) pathways. These findings demonstrate that GBP disrupts visual development in zebrafish through retinal apoptosis and thyroid hormone dysregulation, highlighting the ecological risks posed by pharmaceutical pollutants. GBP exposure increased light-driven locomotor activity, indicating heightened light sensitivity due to apoptosis in the retina. Visual acuity was assessed through the optokinetic response (OKR) test, retinal morphology, and thyroid hormone (TH) levels. Even at concentrations as low as 1<!-- --> <!-- -->µg/L, GBP exposure led to significant reductions in OKR across various colors, likely due to changes in retinal thickness linked to thyroid hormone disruption. These effects were consistent with alterations in gene expression related to apoptosis, the thyroid system, and retinal development. Our findings enhance understanding of how GBP exposure impairs vision in fish and highlight the need to evaluate the ecological risks of pharmaceutical contaminants in aquatic environments.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"74 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990092","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":"Construction of P450 Scaffold Biocatalysts for the Biodegradation of Five Chloroanilines","authors":"Ridong Yang, Osami Shoji, Yingwu Lin, Fang Wang, Hongxia Che, Jiakun Xu","doi":"10.1016/j.jhazmat.2025.137305","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137305","url":null,"abstract":"Chloroanilines represent a class of persistent and highly toxic environmental pollutants, posing significant challenges for green remediation strategies. While P450BM3 monooxygenases are renowned for their ability to catalyze the monooxidation of inert C-H bonds, costly NAD(P)H and complex electron transport systems required for P450BM3 catalysis limit their practical applications. This study pioneers the development of innovative artificial biocatalysts by strategically engineering the active site of P450BM3. Specifically, the substitution of the highly conserved threonine 268 with aspartic acid effectively induces peroxygenase activity, allowing for enhanced catalytic efficiency. Remarkably, the engineered P450BM3 mutants achieved degradation rates of 98.38% to 99.18% for five chloroanilines (4-chloroaniline, 2-chloroaniline, 2,4-dichloroaniline, 3,4-dichloroaniline, and 3,5-dichloroaniline) in just 10-15<!-- --> <!-- -->min, all without the need for NAD(P)H or dual-functional small molecules. Comprehensive degradation mechanism analysis via UPLC-MS corroborated the remarkable performance of these biocatalysts. This research not only demonstrates a novel approach for engineering P450 monooxygenases to exhibit peroxygenase activity but also significantly broadens their potential applications in synthetic chemistry and synthetic biology, paving the way for greener and more sustainable remediation technologies.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"7 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990872","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":"Stress of polyethylene and polylactic acid microplastics on pakchoi（Brassica rapa subsp. chinensis） and soil bacteria: Biochar mitigation","authors":"Yuqing Liu, Yujuan Wen, Haoxuan Cai, Xiaoming Song, Xiaochu Wang, Zhipeng Zhang","doi":"10.1016/j.jhazmat.2025.137301","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137301","url":null,"abstract":"It remains essential to investigate the differences in phytotoxic effects between conventional and biodegradable microplastics (MPs). Furthermore, the mechanisms by which biochar mitigates the toxic effects of MPs on crops and soil remain poorly understood. The results of this research indicated that, compared to control treatment (CK), the application of 2% polyethylene (PE) alone led to a significant reduction in the fresh weight of pakchoi by 36.8% (<em>P</em>&lt;0.05). In examining the activities of antioxidant, as well as the concentrations of MDA and GSH in pakchoi, the 2% PE treatment exhibited the highest levels. In contrast, the treatment that received a mixed application of biochar and MPs did not surpass the levels observed in the microplastic-only application. The combination of 0.2% polylactic acid (PLA) with biochar resulted in a substantial increase in Chao1 index, with improvements of 46.4% to CK. The findings also suggested that biochar can significantly impact bacterial diversity in soil with MPs, thereby altering the functions and metabolic pathways. Consequently, this modification partly influences the growth characteristics of pakchoi. Notably, PE demonstrated a higher level of toxicity to both plants and soil microorganisms than PLA at same applied quantity. These findings open avenues for innovative sustainable agricultural practices.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"31 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990088","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":"Antibiotic resistance genes (ARGs) in microorganisms and their indications for the nitrogen/sulfur cycle in the East China Sea sediments","authors":"Lilian Wen, Jiajia Dai, Jinming Song, Jun Ma, Xuegang Li, Huamao Yuan, Liqin Duan, Qidong Wang","doi":"10.1016/j.jhazmat.2025.137280","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137280","url":null,"abstract":"Antibiotic resistance genes (ARGs) are emerging environmental pollutants, posing an escalating threat to public health and environmental security worldwide. However, the relationship between ARGs and microbial communities in the environment, as well as their ecological effects on the microbe-mediated materials cycle remain unclear. In this study, we investigated the spatial distribution pattern, influence mechanism, relationship with microorganisms, and their effects on the elemental cycling of ARGs in East China Sea sediments. The results showed that temperature caused a latitudinal gradient in the distribution of ARGs. The sulfonamide and quinolone ARGs were characterized by a distribution pattern of “higher in the south and lower in the north” with a boundary of 29 °N, while tetracycline and macrolide ARGs have the opposite distribution patterns. The spatial variation of environmental parameters shaped the differences in microbial abundance and diversity. Sulfonamide and quinolone ARGs were greatly affected by temperature, <em>intI</em>1, microbial composition, and abundance, while tetracyclines and macrolides ARGs were mainly affected by microbial alpha diversity index and NO₂^-. ARGs and <em>intI</em>1 were synchronously significantly correlated with nitrogen and sulfur cycle functional genes, indicating that microorganisms with ARGs can integrate nitrogen and sulfur cycle functional genes through <em>intI</em>1, thereby promoting or inhibiting nitrogen and sulfur cycle. This study will provide an important scientific basis for exploring the pollution control and ecological risk assessment of ARGs in sediments.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"23 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990133","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":"Targeted migration mechanisms of nitrogen-containing pollutants during chemical looping co-gasification of coal and microalgae","authors":"Didi Gai, Danyang Shao, Fengxia An, Zhaoping Zhong, Xiaojia Wang, Lei Chen","doi":"10.1016/j.jhazmat.2025.137237","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137237","url":null,"abstract":"The chemical looping co-gasification of nitrogen-containing algal biomass and coal could effectively realize the high-value utilization of gasification products, but the mechanism of conversion of nitrogen-containing pollutants is not clear. In this work, the effects of the different ratios of microalgae on the co-gasification process were first explored, and the results showed that the 40% coal + 60% microalgae blending had the best synergistic effect, with a comprehensive synergistic index (CSI) of 1.35 as the maximum value. The effects of temperature, the ratio of OCs to feed (O/C) and steam flow rate on the evolution of nitrogen-containing species in the co-gasification products were explored based on the optimal mixing ratio, and the results showed that elevating the reaction temperature promotes the generation of nitrogen oxide precursors, and an appropriate amount of steam could inhibit the generation of NOx. The nitrogen in coke mainly came from the Maillard reaction between carbonyl (-C=O) compounds and amino (-NH₂) compounds and its main forms are pyridine nitrogen (N-5) and pyrrole nitrogen (N-6). Based on the nitrogen accumulation forms in the products of each phase, the mechanism of nitrogen transport and conversion in the chemical looping co-gasification of coal and microalgae (CM-CLCG) process was proposed. This study provides a reference for the synergistic utilization of coal and biomass and the control process of nitrogen-containing pollutants.<h3>Environmental Implication</h3>NOx is a common gaseous pollutant, including a variety of compounds, such as nitrous oxide (N₂O), nitric oxide (NO), nitrogen dioxide (NO₂), which cause harm to human and environment. The pre-regulation of NOx precursor in the process of chemical chain co-gasification and the collaborative control of NOx emission in the process of reaction are realized in this work by changing the ratio of coal to microalgae and regulating reactive oxygen species and reactive groups in the reaction environment. This study provides a reference for the synergistic utilization of coal and biomass and the control process of nitrogen-containing pollutants.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"1 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990035","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":"Using machine learning models to predict the dose–effect curve of municipal wastewater for zebrafish embryo toxicity","authors":"Mengyuan Zhu, Yushi Fang, Min Jia, Ling Chen, Linyu Zhang, Bing Wu","doi":"10.1016/j.jhazmat.2025.137278","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137278","url":null,"abstract":"Municipal wastewater substantially contributes to aquatic ecological risks. Assessing the toxicity of municipal wastewater through dose–effect curves is challenging owing to the time-consuming, labor-intensive, and costly nature of biological assays. This study developed machine learning models to predict wastewater dose–effect curves for zebrafish embryos. The influent and effluent samples from 176 wastewater treatment plants in China were analyzed to collect water quality data, including information on seven chemical parameters and the toxic effects on zebrafish embryos at eight relative enrichment factors (REFs) of wastewater. Using Spearman’s rank correlation coefficient and the max-relevance and min-redundancy algorithm, the parameters of ammonium nitrogen content and toxic effect values at REFs of 2 and 25 (REF2 and REF25), were identified as crucial input features from 15 variables. Decision tree, random forest, and gradient-boosted decision tree (GBDT) models were developed. Among these, GBDT exhibited the best performance, with an average R² value of 0.91 and an average mean absolute percentage error (MAPE) of 27.91%. Integrating the dose–effect curve pattern into the machine learning model considerably optimized the GBDT model, reaching a minimum MAPE of 14.74%. The developed model can accurately determine the dose–effect curves of actual wastewater, reducing at least 75% of the experimental workload. These findings provide a valuable tool for assessing zebrafish embryo toxicity in municipal wastewater management. This study indicates that combining environmental expertise and machine learning models allows for a scientific assessment of the potential toxic risks in wastewater, providing new perspectives and approaches for environmental policy development.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"22 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990089","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":"Functionalized 2D Multilayered MXene for Selective and Continuous Recovery of Rare Earth Elements from Real Wastewater Matrix","authors":"Shuangyou Bao, Yingjun Wang, Weiwei Yang, Charlotte Skjold Qvist Christensen, Yanan Shang, Yongsheng Yu, Zongsu Wei","doi":"10.1016/j.jhazmat.2025.137277","DOIUrl":"https://doi.org/10.1016/j.jhazmat.2025.137277","url":null,"abstract":"Rare earth elements (REEs) are the “fuel” for high-tech industry, yet their selective recovery from complex waste matrices is challenging. Herein, we designed a 2D multilayered MXene Ti₃C₂T_x adsorbent for selective extraction of REEs in a broad pH range. By establishing strong Lewis acid-base interactions, extraction capacities of Ti₃C₂T_x to Eu(III) and Ho(III) reached 892.8 and 649.2<!-- --> <!-- -->mg/g, respectively, even at pH 2.0. Following the Valence Matching Principle, the Ti₃C₂T_x adsorbent also demonstrated high selectivity for recovery of various REEs from real REEs processing wastewater and actual sludge from magnet manufacturing industry. To demonstrate the practical feasibility, a layer-stacked membrane of Ti₃C₂T_x supported on polyethersulfone substrate was fabricated for continuous recovery of REEs and exhibited excellent removal of Eu(III) (99.1% at pH 5.0), showcasing its potential for large-scale applications. DFT calculations and material characterization demonstrated that chemisorption between Lewis acid (REEs cations) and Lewis base (F and O) sites is the main adsorption process involved in the uptake of Eu(III) and Ho(III). Finally, both the Ti₃C₂T_x adsorbent and membrane were successfully regenerated and reused via simple acid wash. Overall, the results demonstrate the Ti₃C₂T_x-based recovery as a promising path for sustainable harvesting of REEs.","PeriodicalId":361,"journal":{"name":"Journal of Hazardous Materials","volume":"140 1","pages":""},"PeriodicalIF":13.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990037","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}