{"title":"Application potential of hierarchically porous La<sub>2</sub>O<sub>2</sub>CO<sub>3</sub> for arsenic-containing wastewater purification: rapid adsorption behavior and La-O-As coordination mechanism.","authors":"Yuying Han, Yukun Si, Dandan Wang, Congting Sun","doi":"10.1016/j.envres.2026.124687","DOIUrl":"https://doi.org/10.1016/j.envres.2026.124687","url":null,"abstract":"<p><p>Arsenic pollution involving coexisting inorganic arsenic [As(III), As(V)] and organic arsenicals (roxarsone, ROX) poses considerable challenges due to complex speciation and competitive interference. Herein, hierarchically porous La<sub>2</sub>O<sub>2</sub>CO<sub>3</sub> was synthesized via a carbon-templating strategy, affording a three-dimensional holey sheet-like architecture with interconnected mesopores (2-10 nm), a BET surface area of 60.4 m<sup>2</sup>·g<sup>-1</sup>, and a pore volume of 0.22 cm<sup>3</sup>·g<sup>-1</sup>. This mesopore-dominated structure is conducive to improved aqueous mass transfer and exposure of reactive La-OH and La-O sites. Batch experiments showed rapid adsorption equilibrium within 50 min and strong uptake of ROX, As(III), and As(V) under the tested conditions, following a pseudo-second-order kinetic model. The material showed excellent adaptability across a wide pH range (4-9) and strong resistance to interference from most common coexisting ions and humic acids, with carbonate as the main exception. Systematic characterization (SEM-EDS, XRD, FTIR, XPS) revealed that arsenic immobilization primarily occurs through La-centered inner-sphere complexation (La-O-As coordination) and subsequent transformation into stable La-As phases. Surface carbonate ligands played an auxiliary role by subtly modulating the coordination environment at La sites. Overall, these results demonstrate that hierarchically porous La<sub>2</sub>O<sub>2</sub>CO<sub>3</sub> is a promising rare-earth-based adsorbent for complex arsenic wastewater remediation.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"124687"},"PeriodicalIF":7.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147855583","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}
Déborah Araújo Morais, Wellington Tavares de Sousa, Gabriela Pereira de Salles, Cecília Massaro Rufo, Marilia Cristina Oliveira Souza, Jose L Domingo, Paulo Lotufo, Isabela Benseñor, Fernando Barbosa
{"title":"Human biomonitoring of plasma trace elements in Brazilian adults: distribution patterns and sociodemographic determinants in the ELSA-Brasil cohort.","authors":"Déborah Araújo Morais, Wellington Tavares de Sousa, Gabriela Pereira de Salles, Cecília Massaro Rufo, Marilia Cristina Oliveira Souza, Jose L Domingo, Paulo Lotufo, Isabela Benseñor, Fernando Barbosa","doi":"10.1016/j.envres.2026.124657","DOIUrl":"https://doi.org/10.1016/j.envres.2026.124657","url":null,"abstract":"<p><p>Human biomonitoring (HBM) is essential for characterizing internal exposure to toxic and essential elements and for supporting environmental health risk assessment. However, comprehensive HBM data remain scarce in low- and middle-income countries, including Brazil. We characterized the plasma metallome of 9,949 adults aged 35-74 years participating in the baseline examination (2008-2010) of the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). Plasma concentrations of 15 metals and metalloids, aluminum (Al), barium (Ba), cadmium (Cd), cobalt (Co), copper (Cu), iron (Fe), mercury (Hg), lithium (Li), manganese (Mn), nickel (Ni), lead (Pb), rubidium (Rb), selenium (Se), strontium (Sr), and zinc (Zn), were quantified by ICP-MS, and population distribution percentiles of plasma elemental concentrations were characterized. Associations with sociodemographic characteristics, lifestyle factors, and cardiometabolic conditions were systematically evaluated. Pronounced sex-specific differences were observed, with higher plasma concentrations of Al, Fe, Mn, Pb, Rb, Sr, and Zn in men, and Co, Cu, and Se in women. Median concentrations of Al, Cu, Se, and Zn were compared with those reported in large international HBM programs, revealing differences in background exposure and nutritional status. Plasma metal levels differ according to age, education, income, smoking, and alcohol consumption. Notably, hypertension, dyslipidemia, obesity, and smoking were associated with higher plasma copper concentrations. This study provides the first large-scale human biomonitoring assessment of the plasma metallome in a Brazilian adult population and represents one of the largest plasma-based HBM studies worldwide. By establishing reference distributions and identifying key sociodemographic and lifestyle determinants, these findings fill a critical data gap for Brazil and contribute valuable evidence for exposome-oriented research and environmental health risk assessment in Latin America and other low- and middle-income settings.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"124657"},"PeriodicalIF":7.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147855653","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}
Jassiara da Silva Pessoa, Laís Ferreira Dos Santos, Alana Rafaela Batista Leite, Silvia Pedroso Melegari
{"title":"Modulation of emerging pollutants toxicity by sodium dodecyl sulfate in a marine green microalga.","authors":"Jassiara da Silva Pessoa, Laís Ferreira Dos Santos, Alana Rafaela Batista Leite, Silvia Pedroso Melegari","doi":"10.1016/j.envres.2026.124673","DOIUrl":"https://doi.org/10.1016/j.envres.2026.124673","url":null,"abstract":"<p><p>Pollutants of emerging concern (PECs) are a major threat to the marine ecosystem. Their presence in the environment is exacerbated by the disposal of effluents. Moreover, chemical interactions can interfere in the bioavailability and toxicity of these substances. Therefore, this study was developed to better understand how chemical mixtures affect the toxicity of PECs diclofenac sodium (DCF) and zinc oxide nanomaterial (ZnO NM) when mixed with sodium dodecyl sulfate (SDS). The green microalga Tetraselmis sp. was used as a representative of the marine phytoplanktonic community. First, isolated toxicity assays were conducted with DCF, ZnO NM, and SDS. SDS interaction in binary mixture with the NM and the pharmaceutical was also analyzed due to the surfactant's ability to stabilize chemicals. For this purpose, assays were performed according to an Isobologram with fixed radius design. According to the EC50<sub>48h</sub> values obtained in the isolated toxicity assays, the harmfulness of the pollutants to Tetraselmis sp. was SDS > DCF > ZnO NM. The modulation of toxicity due to the SDS binary mixture was notable with both PECs. Using Isobologram and Abbott models, it was observed the predominance of synergistic interactions in the ZnO NM + SDS mixture, where possibly the surfactant enhances nanoparticle dissolution. The DCF + SDS mixture was marked by antagonistic interactions, possibly through micellar encapsulation of the pharmaceutical. The predictions according to the Könemman model indicate additive interactions for both binary combinations. However, the predictive models employed present limitations, as they disregard the chemical nature of the substances.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"124673"},"PeriodicalIF":7.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147855671","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}
Zhuoqi Zhu, Yufei Gao, Jiemei Li, Yunfeng Zou, Han Li, Yang Peng
{"title":"Associations of ambient air pollution exposure during pregnancy with maternal and neonatal thyroid function: systematic review and meta-analysis.","authors":"Zhuoqi Zhu, Yufei Gao, Jiemei Li, Yunfeng Zou, Han Li, Yang Peng","doi":"10.1016/j.envres.2026.124649","DOIUrl":"https://doi.org/10.1016/j.envres.2026.124649","url":null,"abstract":"<p><p>Thyroid function in both pregnant women and newborns is vital for ensuring healthy child growth and development. Existing evidence suggests that exposure to air pollutants during pregnancy may disrupt maternal and neonatal thyroid function; however, findings across studies remain inconsistent. This systematic review and meta-analysis included 24 studies (55,814 pregnant women and 84,645 neonates) published until April 30, 2025. Results indicated that each 10 μg/m<sup>3</sup> increase in PM<sub>2.5</sub> was associated with a significant decrease in maternal FT4 levels (-0.42%, 95% CI: -0.83%, -0.01%) and neonatal FT4 levels (-0.90%, 95% CI: -1.52%, -0.29%). PM<sub>2.5</sub> exposure also increased the risk of maternal hypothyroxinemia (OR = 1.49, 95% CI: 1.16, 1.91). Subgroup analyses revealed stronger effects in the first and third trimesters. Additionally, the study found a nonlinear relationship between PM<sub>2.5</sub> exposure and thyroid hormone levels in pregnant women while potential breakpoints vary across thyroid parameters, which range from 20.6 to 71.02 μg/m<sup>3</sup>, the collective patterns indicate that the most dynamic PM<sub>2.5</sub>-related effects on maternal thyroid function occur within the 20-60 μg/m<sup>3</sup> exposure window. Above approximately 60 μg/m<sup>3</sup>, response slopes generally diminish, reflecting a sublinear curvature in the exposure-response relationships. These breakpoints notably exceed the WHO air quality guideline (10 μg/m<sup>3</sup>). These findings underscore the need for stricter air quality regulations to protect maternal and neonatal thyroid health. Further research is warranted to explore the underlying mechanisms and identify critical exposure windows.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"124649"},"PeriodicalIF":7.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147855540","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}
Zhongqiang Hu, Zhan Yao, Lin Yu, Jianping Guo, Zhihui Yang, Weichun Yang, Qi Liao, Xi Chen, Shuyan Mi
{"title":"Acid-resistant ferrihydrite-spent grain composites for enhanced As and Sb removal from acid mine drainage.","authors":"Zhongqiang Hu, Zhan Yao, Lin Yu, Jianping Guo, Zhihui Yang, Weichun Yang, Qi Liao, Xi Chen, Shuyan Mi","doi":"10.1016/j.envres.2026.124680","DOIUrl":"https://doi.org/10.1016/j.envres.2026.124680","url":null,"abstract":"<p><p>Acidic wastewater contaminated with arsenic(As) and antimony(Sb) from antimony mining poses serious risks to surrounding ecosystems. Conventional iron-based materials for As/Sb removal often exhibit limited effectiveness under acidic conditions. To address this limitation, we developed a biomass modification strategy and synthesized a ferrihydrite-spent grain composite (FH-SG). Leveraging silicate and phosphate release from spent grains (SG), FH-SG exhibits excellent acid resistance. Moreover, ferrihydrite (FH) is uniformly dispersed on the surfaces of SGs, which inhibits their aggregation, enhances their active site reactivity, and markedly improves their arsenic and antimony remediation capacity. FH-SG has an adsorption capacity of 184.62 mg/g for As and 195.03 mg/g for Sb, which are 2.0 and 1.7 times greater than those of pure FH, respectively. As validated by simulated and field mining wastewater tests, the FH-SG-based retention barrier enables efficient As and Sb interception, with removal efficiencies stable over 95% (As) and 96% (Sb) at initial concentrations of 0.05-12 mg/L (As) and 0.92-120 mg/L (Sb), respectively. This system achieves satisfactory treatment performance under variable field conditions, including fluctuations in pH (3-7), rainfall intensity (20-60 mm/h), and concentrations (As: 0.05-12 mg/L; Sb: 0.92-120 mg/L). This approach overcomes the pH limitations associated with conventional treatment materials and offers a viable engineering solution for the remediation of acidic mining wastewater.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"124680"},"PeriodicalIF":7.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147855597","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":"Tire Wear Particles as a Source of Organic Contaminants in the Agroenvironment: Release of Tire Wear-Derived Compounds and their Plant Uptake.","authors":"Chao Gao, Vered Mordehay, Anya Sherman, Luzian Elijah Hämmerle, Thilo Hofmann, Tamara Polubesova, Benny Chefetz, Evyatar Ben Mordechay","doi":"10.1016/j.envres.2026.124681","DOIUrl":"https://doi.org/10.1016/j.envres.2026.124681","url":null,"abstract":"<p><p>Tire wear particles (TWPs) are introduced into agricultural soils, raising concern about the release of tire wear-derived compounds (TWCs) to the environment and their uptake by plants. This study examined the release of six TWCs from TWPs and their subsequent uptake by alfalfa and lettuce plants grown in soil containing 0.1 and 1% TWPs. The release of TWCs followed a two-stage kinetic pattern; an initial fast release of surface-bound compounds followed by a prolonged, diffusion-controlled release of compounds entrapped within the rubber matrix. 1,3-Diphenylguanidine (DPG) and 2-aminobenzothiazole (A-BTZ) exhibited the highest concentrations (113 and 10 ng/g, respectively) in the alfalfa shoots. However, their concentrations declined with each of the five successive harvests. Hexamethoxymethyl melamine (HMMM) and N-(1,3-Dimethylbutyl)-N'-phenyl-p-phenylenediamine-quinone (6PPD-quinone) were detected only in the first harvest of alfalfa shoots, while benzothiazole (BTZ) and N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD) were not detected. Transformation products (TPs) of the studied TWCs were detected in the alfalfa shoots, suggesting either uptake and translocation of the parent compounds followed by in-plant metabolism, and/or direct uptake of the TPs from the soil solution. Similar to alfalfa, in lettuce leaves, DPG exhibited the highest concentration (395 ng/g), followed by 6PPD (4.1 ng/g), 6PPD-quinone (0.9 ng/g), HMMM (0.6 ng/g), and A-BTZ (0.4 ng/g). BTZ was also not detected. A comparison of our data for lettuce with literature data indicated that TWCs introduced via TWPs exhibit reduced bioavailability compared to those introduced with irrigation water, except for DPG, which exhibited elevated concentrations when introduced via TWPs. This suggests that TWPs are acting as a long-term source for bioavailable DPG.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"124681"},"PeriodicalIF":7.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147855799","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":"Response characteristics of partial denitrification system under N-methylpyrrolidone exposure: EPS regulation, electron transfer, and microbial metabolism.","authors":"Haolin Niu, Tingting Liu, Dongyue Li, Jun Li, Yuhan Zhu, Mengqi Gao, Yanshuo Wu, Peng Gao, Andong Zhao, Zehao Zhang","doi":"10.1016/j.envres.2026.124667","DOIUrl":"https://doi.org/10.1016/j.envres.2026.124667","url":null,"abstract":"<p><p>N-methylpyrrolidone (NMP), a widely used solvent in lithium-ion battery production, shows potential as a carbon source for denitrification. Its use in nitrogen removal may achieve simultaneous pollutant removal and resource recovery. However, its effectiveness and microbial adaptation mechanisms in partial denitrification (PD) systems remain unclear. In this study, PD system was operated for 60 days under NMP concentrations of 0 (R1), 50 (R2), 400 (R3), and 1000 mg/L (R4). Nitrite accumulation, sludge properties, and microbial metabolism were analyzed to evaluate system performance and adaptation. Results demonstrated that 50 mg/L NMP stabilized nitrate-to-nitrite transformation ratio (NTR) at 82.74 ± 4.17%, while 1000 mg/L NMP reduced NTR to 21%. Electron transfer system activity (ETSA) decreased from 6.03 to 4.20 μg/(mg·h) a decline of 30.35%. Reactive oxygen species (ROS)(R2: 200 ± 4%;R3: 159 ± 2%;R4: 88 ± 0.8%)stimulated extracellular polymeric substances (EPS) secretion, raising total EPS (R1: 88.56 ± 0.85;R2: 124.77 ± 0.74;R3: 141.56 ± 2.52;R4: 147.50 ± 3.34 mg/g VSS)and the protein/polysaccharide (PN/PS) ratio(R1: 5.59 ± 0.18;R2: 6.46 ± 0.72;R3: 6.59 ± 0.03;R4: 7.31 ± 0.06). At 50 mg/L NMP, enhanced EPS adhesiveness and sludge hydrophobicity promoted granulation and mitigated stress; at 1000 mg/L NMP, electron limitation and oxidative stress decreased NRE and NTR. High-throughput sequencing revealed that NMP reduced community diversity and drove enrichment of tolerant genera organic matter conversion (e.g., Paracoccus). This study clarifies concentration-dependent effect of NMP in PD systems, providing theoretical guidance for treatment of NMP-containing wastewater.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"124667"},"PeriodicalIF":7.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147855690","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 abiotic drivers of soil system perturbation by metallic nanomaterials: a critical review bridging interfacial processes to environmental risks.","authors":"Mengcheng Zhang, Xue Li, Yongchao Zhao, De'an Chen, Na Tian, Wenrui Zhang, Dongle Cheng, Guang Yang, Xiaoqiang Cao, Yanlong Wang, Huaqing Liu, Jian Zhang","doi":"10.1016/j.envres.2026.124676","DOIUrl":"https://doi.org/10.1016/j.envres.2026.124676","url":null,"abstract":"<p><p>Metallic nanomaterials (MNMs), widely used in environmental remediation and agriculture, inevitably enter soils and interact dynamically with the abiotic components, such as soil air, pore water, clay minerals, and organic matter. These interactions are not passive; rather, MNMs function as systemic micro-drivers that actively reshape the soil environment through coupled multi-interface processes. This review critically examines these interfacial processes, including oxidative corrosion driven by soil air, aggregation and aging in pore water, electron transfer and co-evolution with clay minerals, and the reciprocal regulation of MNM stability and transformation by organic matter. Through these nanoscale mechanisms, MNMs propagate upward to alter macroscopic soil properties, such as structure, hydrology, pH, redox potential, and nutrient availability, via physical clogging, electron transfer, surface complexation, and redox reactions. However, current understanding remains largely qualitative; critical parameters, including kinetic rate constants, thermodynamic binding energies, and validated predictive models under field-relevant conditions, are lacking, limiting our ability to forecast MNM fate and effects. To address this gap, we identify priority research directions: in situ quantification of interfacial kinetics and energetics, molecular-level deconvolution of soil organic matter fractions governing MNM behavior, and development of cross-scale predictive models integrating coupled multi-interface processes. This integrated perspective aims to provide a scientific foundation for the safe and sustainable application of MNMs in soil environments.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"124676"},"PeriodicalIF":7.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147855721","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}
Jujiao Zhao, Chuandong Qin, Yi Wei, Shun Guan, Siyu Tang, Jing Wang, Haoxuan Wei, Quanfeng Wang, Xiaorong Gan
{"title":"Enhanced Peroxymonosulfate Activation via Non-radical Pathways by CoFe<sub>2</sub>O<sub>4</sub> Anchored on N and S co-doped Carbon Nanotubes.","authors":"Jujiao Zhao, Chuandong Qin, Yi Wei, Shun Guan, Siyu Tang, Jing Wang, Haoxuan Wei, Quanfeng Wang, Xiaorong Gan","doi":"10.1016/j.envres.2026.124679","DOIUrl":"https://doi.org/10.1016/j.envres.2026.124679","url":null,"abstract":"<p><p>Developing highly efficient catalysts to activate peroxymonosulfate (PMS) via non-radical pathways for water decontamination is desirable, yet achieving this via green and scalable methods remains challenging. Herein, we report highly dispersed CoFe<sub>2</sub>O<sub>4</sub> nanoparticles anchored on N and S co-doped commercial-grade carbon nanotubes (CoFe<sub>2</sub>O<sub>4</sub>-N/S-CNT; abbreviated as CFO-N/S-CNT), prepared by a simple, solvent-free route involving mechanical grinding and low-temperature calcination, for tetracycline (TC) degradation. Under optimal conditions, the CFO-N/S-CNT/PMS system achieves 96% TC removal with an observed rate constant (k<sub>obs</sub>) of 2.03 min<sup>-1</sup>, corresponding to 35.6-, 27.4-, and 2.78-fold enhancements relative to CFO/PMS (0.057 min<sup>-1</sup>), N/S-CNT/PMS (0.074 min<sup>-1</sup>), and CFO-CNT/PMS (0.73 min<sup>-1</sup>), respectively. Quenching tests, electron paramagnetic resonance (EPR), and electrochemical measurements reveal that PMS activation over CFO-N/S-CNT proceeds primarily via non-radical pathways, involving singlet oxygen (<sup>1</sup>O<sub>2</sub>) generation and an electron-transfer pathway (ETP). Density functional theory (DFT) calculations indicate that a moderate PMS adsorption strength on CFO-N/S-CNT enables efficient electron withdrawal from TC, thereby promoting the ETP, while adsorption-induced O-H bond elongation in PMS lowers the barrier for <sup>1</sup>O<sub>2</sub> generation. In line with the non-radical regime, CFO-N/S-CNT delivers consistently high TC removal in diverse and chemically complex water matrices. This work offers mechanistic insights for the design of non-radical PMS catalysts and demonstrates a practical, scalable strategy based on commercial nanomaterials.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"124679"},"PeriodicalIF":7.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147855573","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":"Detoxification of antibiotic pollution using nanoparticle systems: Introspecting the mechanisms, current status and emerging trends.","authors":"Embar Prasanna Kannan, Prasanth Venkatachalam, Gnanadeepam Raja, Ponmariappan Sarkaraisamy, Judy Gopal, Manikandan Muthu","doi":"10.1016/j.envres.2026.124683","DOIUrl":"https://doi.org/10.1016/j.envres.2026.124683","url":null,"abstract":"<p><p>The irrational usage and improper disposal of antibiotics in healthcare facilities, households, animal husbandry and agriculture had resulted in widespread accumulation of antibiotic residues in environment. The antibiotic residues play a critical role in accelerating the onset antimicrobial resistance (AMR), by selective pressure on the ecological niche which in turn gets disseminated through vertical and horizontal gene transfer mechanisms among bacteria. This AMR when gets transmitted across environments and to humans causes catastrophic threat to one health. In addition, the antibiotic accumulation disrupts microbial community structure, impairs soil fertility by altering nutrient cycling processes and bioaccumulates in food chains also posing significant ecological imbalances and long-term risk to human and one health. In recent years nanomaterials have emerged as promising candidates for antibiotic detoxification due to their unique physiochemical properties such as tuneable surface properties, higher surface area and enhanced reactivity at nanoscale. By degrading antibiotics from environment nanomaterials reduces the antibiotic exposure and hence reduced the emergence of AMR pathogens and AMR genes (ARGs). Despite the rapid progress, the existing studies remain fragmented lacking a consolidative framework to assess the application of nanoparticle systems for antibiotic degradation. Hence this review bridges the gap by critically comparing and analysing the existing nanomaterials for antibiotic degradation in colloidal system. Further it addresses the knowledge gap and future research directions essential for adapting newer solutions to mitigate antibiotic pollution and their diverse ecological effects.</p>","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"124683"},"PeriodicalIF":7.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147855595","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}