Environmental Nanotechnology, Monitoring and Management最新文献

{"title":"Adsorptive and Photo-Fenton catalytic activities of Iron-Tungstate/Reduced graphene oxide nanocomposite for hospital wastewater treatment","authors":"O.J. Ajala ,&nbsp;J.O. Tijani ,&nbsp;A.S. Abdulkareem ,&nbsp;R.B. Salau ,&nbsp;O.S. Aremu ,&nbsp;D. Onwudiwe ,&nbsp;T.C. Egbosiuba ,&nbsp;M.N. Alharthi ,&nbsp;Y. Balogun","doi":"10.1016/j.enmm.2025.101117","DOIUrl":"10.1016/j.enmm.2025.101117","url":null,"abstract":"<div><div>This study presents the synthesis, characterization, and application of a novel FeWO₄/reduced graphene oxide (rGO) nanocomposite as adsorptive and photo-fenton agent for the removal of heavy metals and treatment of hospital wastewater. The nanocomposite was successfully prepared using a one-pot synthesis method and characterized by various techniques including X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) surface area analyser, high resolution scanning electron microscopy (HRSEM), Energy Dispersive Spectroscopy (EDS) and UV–Vis spectroscopy. FeWO₄/rGO nanocomposite demonstrated excellent adsorption capacity for lead (Pb), cadmium (Cd), copper (Cu), nickel (Ni), and chromium (Cr), with maximum removal efficiencies of 86.68 %, 80.13 %, 70.52 %, 68.10 %, and 61.87 %, respectively. The adsorption process followed pseudo-second-order kinetics, with the optimal conditions being 0.1 g of adsorbent, 120 min of contact time, and 200 rpm stirring speed. In addition, FeWO₄/rGO nanocomposite exhibited notable photo-Fenton catalytic activity under solar radiation, achieving a significant reduction in biological oxygen demand (63.54 %), total organic carbon (39.14 %), and chemical oxygen demand (33.33 %) in hospital wastewater. The optimization of the photo-Fenton process, conducted via the Box-Behnken Design, showed that the optimal conditions for organic pollutants degradation were 0.35 g of catalyst, pH 7, and 147.27 min of reaction time. These findings highlight the potential of FeWO₄/rGO nanocomposites for effective wastewater treatment, offering a sustainable solution for the removal of hazardous pollutants from hospital effluents.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"25 ","pages":"Article 101117"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145921629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Graphene-based hydrogel modified o-DGT device for in situ sampling of atenolol","authors":"Mayara Bitencourt Leão ,&nbsp;Rafael Garrett Dolatto ,&nbsp;Marco Tadeu Grassi ,&nbsp;Carolina Ferreira de Matos Jauris ,&nbsp;Andreia Neves Fernandes","doi":"10.1016/j.enmm.2026.101131","DOIUrl":"10.1016/j.enmm.2026.101131","url":null,"abstract":"<div><div>This work aimed to develop an o-DGT device with a graphene-based hydrogel-modified binding layer (3D-rGO) to sample atenolol in water. The boundary conditions of the device were determined by the diffusion coefficients and by the evaluation of the influence of pH and ionic strength. Afterward, the device was practically applied to a tap water sample. The results obtained for the device showed that atenolol can be efficiently quantified, presenting a diffusion coefficient at 25 °C of 3.75 x 10^-6 cm² s⁻¹. The pH had no effect on the device; however, elution optimization studies indicated interference from ionic strength during the sampling step. This interference can be overcome by using the apparent diffusion coefficient or adjusting the binding layer’s ionic strength before sampler assembly. The experimental diffusion coefficient was compared with theoretical diffusion coefficients found by the Hayduk-Laudie equation and Archie’s law, verifying the greater reliability of the experimental results. When applied to a sample of tap water, with a concentration of 0.1 mg L⁻¹, the device performed well, with 92% recovery of atenolol in tap water. These results were obtained from an LOQ of 0.2 mg L⁻¹. The results were promising, and the use of 3D-rGO proved favorable, primarily due to its environmentally friendly synthesis route, thereby consolidating its potential for environmental applications.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"25 ","pages":"Article 101131"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seed germination and plant growth response to treated dye effluent using Tridax procumbens-mediated CeO2-ZnO green NCs for wastewater treatment and chromium reduction","authors":"P. Ananthu ,&nbsp;Pallavi Sulakiya ,&nbsp;J. Manjanna ,&nbsp;G. Nagaraju ,&nbsp;H. Raja Naika","doi":"10.1016/j.enmm.2025.101108","DOIUrl":"10.1016/j.enmm.2025.101108","url":null,"abstract":"<div><div>The growing challenge of water pollution caused by synthetic dyes and toxic heavy metals necessitates the development of efficient, eco-friendly remediation strategies. In this study, a CeO₂-ZnO Nanocomposite (NC) was synthesised through a sustainable green synthesis method to address these concerns. The study investigates the photocatalytic degradation of Methylene Blue (MB) dye using a CeO₂-ZnO NC. This method employed zinc nitrate hexahydrate for Zinc Oxide (ZnO) and cerium nitrate hexahydrate as the precursor for Cerium Oxide (CeO₂) nanoparticle synthesis. The green synthesis process also involved the use of <em>Tridax procumbens</em> (Linn.), a natural plant, which served as both a reducing agent and a fuel for the reaction. To fully assess the structural, chemical, and electrical characteristics of the synthesised composite, various analytical techniques were employed. The optical band gap of the composite was determined to be 2.95 eV based on the Tauc relation. The photocatalytic performance of the CeO₂-ZnO NC was then evaluated for the degradation of MB dye under different experimental conditions. Key parameters such as the variation in catalyst concentration, dye concentration, and pH levels were tested, alongside scavenger tests to examine the mechanism of the photocatalytic process. The results revealed that the CeO₂-ZnO NC was highly effective in degrading the dye, achieving more than 94 % degradation within 180 min under visible light exposure. Seed germination and plant growth activities are also carried out for Mustard seeds using dye water and dye-degraded water to compare the growth. Furthermore, the NC demonstrated significant potential in environmental applications, as it was capable of reducing Chromium (VI) by up to 67.7 %, converting it to the less toxic Chromium (III).</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"25 ","pages":"Article 101108"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145735281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nanobiochar from pomegranate peel biomass for enhanced 4-nitrophenol removal: synthesis, characterization, and performance evaluation","authors":"Kustomo ,&nbsp;Sam Fong Yau Li","doi":"10.1016/j.enmm.2026.101123","DOIUrl":"10.1016/j.enmm.2026.101123","url":null,"abstract":"<div><div>Nanobiochar (NBC) derived from pomegranate peel biomass was engineered as a low-cost, mildly synthesized, and sustainable adsorbent for the efficient removal of 4-nitrophenol (4-NP) from water. NBC was prepared via controlled pyrolysis at 600°C for 2 h (10°C min⁻¹ heating rate, 0.67 L min⁻¹ N₂ flow), followed by facile ball milling and ultrasonication to create a high surface area, abundant oxygen-containing functional groups, and nanoscale defect sites tailored for enhanced adsorption performance. Comprehensive characterization using FTIR, XRD, SEM-EDS, TEM, Raman spectroscopy, BET surface area analysis, TGA, zeta potential, and CHN elemental analysis was employed to correlate NBC’s structural and surface properties with its adsorption behavior. Under optimized conditions (pH 6, 15 mg NBC dose, 30 mL 4-NP solution at 298 K), NBC exhibited rapid 4-NP uptake with a maximum adsorption capacity of 84.75 mg g⁻¹ and a removal efficiency exceeding 94.12%. The Langmuir isotherm and pseudo-second-order kinetic models best described the data result, indicating predominant monolayer chemisorption and strong interactions between NBC and 4-NP. Regeneration studies showed that NaOH outperformed HNO₃, achieving 85.76% and 20.53% 4-NP removal, respectively, after three consecutive cycles. Overall, NBC demonstrates promising as a practical and environmentally benign adsorbent for advanced treatment of 4-NP-contaminated waters and related phenolic pollutants.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"25 ","pages":"Article 101123"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146022359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A user-friendly AgNP colorimetric sensor for mercury(II) monitoring in water systems","authors":"Dhony Hermanto ,&nbsp;Yulida Tsaniyatinnuri ,&nbsp;Saprini Hamdiani ,&nbsp;Lely Kurniawati ,&nbsp;Siswoyo Siswoyo ,&nbsp;Bambang Kuswandi ,&nbsp;Rochmad Krissanjaya ,&nbsp;Julinton Sianturi ,&nbsp;Nurul Ismillayli","doi":"10.1016/j.enmm.2026.101125","DOIUrl":"10.1016/j.enmm.2026.101125","url":null,"abstract":"<div><div>Mercury (Hg) remains a persistent and highly toxic pollutant that readily infiltrates aquatic environments, bioaccumulates in organisms, and biomagnifies along food chains, ultimately posing significant ecological and human health risks, particularly through seafood consumption. The rapid and selective detection of Hg(II) in water is therefore essential for effective environmental monitoring and safeguarding public health. In this study, a user-friendly colorimetric sensor based on silver nanoparticles (AgNPs) was developed using a green electrosynthesis approach assisted by <em>Stachytarpheta jamaicensis</em> leaf extract (SJLE). The resulting AgNPs serve as a facile visual and spectroscopic probe for Hg(II) detection, operating through an Ag–Hg amalgamation mechanism that induces localized surface plasmon resonance (LSPR) quenching and produces a distinct color transition from brownish-yellow to pale yellow. Under optimized conditions, the sensor exhibited a strong linear response to Hg(II) concentrations ranging from 1–50 µg L⁻¹, with a limit of detection of 1.47 µg L⁻¹ and a limit of quantification of 2.52 µg L⁻¹. The method demonstrated high precision (RSD ≤ 2.3 %) and strong agreement with UV–Vis measurements. Validation using cold vapour–atomic absorption spectrophotometry (CV-AAS) on well water samples produced satisfactory recoveries and showed excellent correlation (R² &gt; 0.99) with minimal bias (&lt;0.01 µg L⁻¹). Beyond its analytical reliability, the proposed platform offers a rapid, reagent-free, and field-deployable solution for mercury monitoring. Overall, this environmentally friendly sensing approach provides a cost-effective alternative to conventional laboratory techniques and holds promising potential for broader applications in heavy metal detection, supporting sustainable water management and contributing to SDGs 6 and 14.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"25 ","pages":"Article 101125"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146022358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Environmental contaminants and ecotoxicological consequences of antibiotics and personal care products in freshwater ecosystems: Monitoring and management strategies – A review and meta-analysis","authors":"Md. Didaruzzaman Sohel ,&nbsp;Md Saydur Rahman","doi":"10.1016/j.enmm.2025.101119","DOIUrl":"10.1016/j.enmm.2025.101119","url":null,"abstract":"<div><div>Pharmaceuticals and personal care products (PPCPs) constitute a class of newly discovered micropollutants that harm living aquatic organisms. Pharmaceutical drugs, such as antibiotics, are commonly found in freshwater ecosystems and wastewater treatment effluents. Notably, antibiotics can enter freshwater habitats, posing a growing ecological threat. Additionally, PPCPs are hazardous to aquatic organisms both acutely and chronically. This study focused on peer-reviewed articles on PPCPs from 2000 to 2025 on scholarly databases. The initial literature search yielded 1,760 articles. After removing duplicates and systematically assessing study relevance, the dataset was narrowed to 1,172 articles. VOSviewer software was used to generate visual maps of keyword relatedness. We evaluated the quantitative concentrations (ng/L to µg/L) of antibiotics and PCP and reviewed their effects on growth, development, and reproductive functions in aquatic organisms. Importantly, research has uncovered a link between antibiotics and PCP pollution, which affects aquatic life. The elimination of antibiotics and PCPs has been achieved through various degrading techniques, including chemical and biological processes. However, antibiotics and PCPs cannot be entirely eliminated through biological and chemical treatments. Therefore, more effective, environmentally friendly methods must be developed for treating antibiotics and PCPs in aqueous media. This article thoroughly reviews the presence, fate, and possible hazards of antibiotics and PCPs in freshwater organisms. Additionally, this review article addresses the current knowledge gap regarding the levels and trends of antibiotics and PCPs in freshwater environments. Finally, it provides suggestions and innovative strategies that can help manage and evaluate ecological risks and contamination levels for further study.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"25 ","pages":"Article 101119"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145881047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of acid route on chitosan nanoparticle formation: Physicochemical properties and application in methylene blue adsorption","authors":"Eliane Merklein ,&nbsp;Amanda S.M. de Freitas ,&nbsp;Rafael A. Franco ,&nbsp;Marystela Ferreira","doi":"10.1016/j.enmm.2026.101122","DOIUrl":"10.1016/j.enmm.2026.101122","url":null,"abstract":"<div><div>In this study, chitosan nanoparticles (NC) were synthesized using two different acidic routes acetic acid (AA) and methacrylic acid (MA) employed as solubilizing agents and pH controllers. The resulting NC were characterized by dynamic light scattering (DLS), nanoparticle tracking analysis (NTA), atomic force microscopy (AFM), transmission electron microscopy (TEM), and Fourier-transform infrared spectroscopy (FTIR) to evaluate the influence of acid type on nanoparticle formation, morphology, and colloidal stability. The AA route produced nanoparticles with an average hydrodynamic diameter of 166 ± 4 nm and zeta potential of 21 ± 1 mV, whereas MA-derived NC exhibited a core–shell-like morphology, larger particle size 178 ± 3 nm, and enhanced electrostatic stability. Accelerated stability assays, including temperature variation, UV-C irradiation, and long-term storage, demonstrated superior stability for MA-based NC over 90 days. Adsorption-desorption experiments using methylene blue, monitored by UV–Vis spectroscopy, revealed NC derived from MA a maximum adsorption capacity of 65 % (3.25 mg/L) of the dye in relation to the initial concentration (5 mg/L), with a regeneration efficiency of 81 % (2.63 mg/L), indicating the potential for reuse of NCMA. Overall, the results demonstrate that acid-controlled synthesis plays a key role in governing the physicochemical properties and interfacial electrostatic interactions of chitosan nanoparticles, directly impacting their adsorption performance and regeneration behavior. These findings highlight the potential of chitosan nanoparticles as efficient, stable, and regenerable nanoadsorbents for water treatment applications.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"25 ","pages":"Article 101122"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146022430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Silane-grafted g-C3N4 nanosheet enhanced air monitoring filters for PM2.5 capture and detection in urban environments","authors":"Vignesh Jagajeevan,&nbsp;Vidhya Lakshmi Sivakumar","doi":"10.1016/j.enmm.2026.101129","DOIUrl":"10.1016/j.enmm.2026.101129","url":null,"abstract":"<div><div>Particulate matter (PM₂.₅) pollution poses significant health risks in urban environments, particularly due to the presence of bioaccumulative heavy metals. This study evaluates the enhancement of quartz filter media functionalized with silane-grafted graphitic carbon nitride (g-C₃N₄) for the capture of metal-rich aerosols. Quartz filters were modified with pristine g-C₃N₄ nanosheets and subsequently with a silane-functionalized g-C₃N₄ coating. Material synthesis was confirmed via SEM, XRD, and FTIR analyses. Filters were deployed in an urban environment for 15 days alongside unmodified controls. Post-exposure analysis indicated that while pristine g-C₃N₄ coatings increased overall particulate mass through increased surface area (physisorption), the silane-functionalized filters exhibited a distinct chemisorption affinity for trace metals. Quantitative bulk analysis using inductively coupled plasma–optical emission spectroscopy (ICP–OES) revealed that the silane–g-C₃N₄ modification increased copper (Cu) and lead (Pb) capture by more than 220% compared to pristine g-C₃N₄. Furthermore, laser-induced breakdown spectroscopy (LIBS) surface mapping showed a strong correlation (R² &gt; 0.9) with bulk ICP–OES data, validating LIBS as a rapid, reagent-free screening tool for filter saturation. These results demonstrate that amine-functionalized nanocoatings can transform passive air filters into active media for the selective sequestration of high-toxicity heavy metals.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"25 ","pages":"Article 101129"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146073853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Metal–organic framework modified biochar nanocomposite for sustainable stabilization of heavy metals in contaminated soils","authors":"Tatiana Bauer ,&nbsp;Mikhail Kirichkov ,&nbsp;Vladimir Polyakov ,&nbsp;Ekaterina Kravchenko ,&nbsp;Vera Butova ,&nbsp;Natalia Chernikova ,&nbsp;Dilfuza Jabborova ,&nbsp;Tatiana Minkina","doi":"10.1016/j.enmm.2026.101132","DOIUrl":"10.1016/j.enmm.2026.101132","url":null,"abstract":"<div><div>Soil pollution with heavy metals from anthropogenic activities poses serious threats to the environment and human health. Although biochar-based sorbents are widely used as soil amendments due to their high porosity and sorption capacity, their ability to firmly immobilize metals and prevent their re-release or re-mobilization under changing environmental conditions remains limited. To address this challenge, biochar produced from wheat straw (BC) was functionalized with the metal–organic framework (MOF) MIL-100(Fe) via hydrothermal synthesis (BC@MIL) to enhance its capacity for heavy metal removal. Structural analysis confirmed uniform MIL-100(Fe) nanoparticle distribution on biochar surfaces, boosting surface area sixfold. Pot experiments in both unpolluted and metal-contaminated soil revealed that BC@MIL facilitated the transformation of Cu, Pb, Zn, and Cd from acid exchangeable fraction to oxidizable and residual fractions. The risk assessment code decreased, and the reduced partition index increased for all heavy metals with sorbent application, indicating an increase in their fixation strength in soils. X-ray diffraction analysis showed that the sorbents effectively stabilized Pb, Cu and Zn in contaminated soils through precipitation processes. In all cases, BC@MIL showed greater efficiency in the stabilization of heavy metals compared to BC. Overall, the study highlights the potential of MOF-modified biochar as an advanced soil amendment for sustainable remediation of heavy metal-contaminated soils.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"25 ","pages":"Article 101132"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nanotechnology for sustainable remediation of petrochemical effluents: trends, challenges, and opportunities","authors":"Isaac Alhamdu Baba ,&nbsp;Paul Habila Samson ,&nbsp;Saad Shafiu ,&nbsp;Saheed Mustapha ,&nbsp;Ambali Saka Abdulkareem ,&nbsp;Jimoh Oladejo Tijani","doi":"10.1016/j.enmm.2025.101113","DOIUrl":"10.1016/j.enmm.2025.101113","url":null,"abstract":"<div><div>The enormous expansion of the petrochemical industry has resulted in an immediate rise in complex and recalcitrant pollutants released into water bodies, posing severe environmental and health hazard to the public. The traditional treatments are largely ineffective in removing the varied array of the common pollutants found in petrochemical wastewaters, such as heavy metals, polycyclic aromatic hydrocarbons (PAHs), phenols, and volatile organic compounds (VOCs). Over the past decades, nanotechnology has been a developing area of sustainable treatment of petrochemical wastewater with a high surface area, adjustable physicochemical characteristics, and improved reactivity. The present review provides an integrated overview of recent advancements in application of nanomaterials such as metal oxides, carbon-based nanostructures, and hybrid nanocomposites for efficient treatment of petrochemical effluents. Adsorption, photocatalytic, and redox removal mechanisms are scrutinized at the molecular level. Also, the current paper establishes the master challenges, such as nanoparticle agglomeration, secondary pollution, scalability, and regulation. Trends of innovative green synthesis routes, intelligent nanomaterials, and coupled treatment systems are also presented as avenues to greener and effective remediation. This review will provide a general vision to engineers, researchers, and policymakers for the safe application of nanotechnology in environmental settings.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"25 ","pages":"Article 101113"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145881046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}