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61,005 resultsShowing papers similar to Cobalt-Immobilized Microplastics as a Functional Catalyst for PMS-Based Nitrate Degradation: Optimization Using Response Surface Methodology
ClearOptimization of PNP Degradation by UV-Activated Granular Activated Carbon Supported Nano-Zero-Valent-Iron-Cobalt Activated Persulfate by Response Surface Method
Researchers optimized a UV-activated persulfate system using iron-cobalt nanoparticles supported on granular activated carbon for degrading p-nitrophenol, a toxic industrial wastewater pollutant, achieving high removal efficiency through response surface methodology to identify optimal operating conditions.
Catalytic transformation of microplastics to functional carbon for catalytic peroxymonosulfate activation: Conversion mechanism and defect of scavenging
Researchers developed a method to convert high-density polyethylene plastic waste into functional carbon materials that can activate peroxymonosulfate to break down organic pollutants in water. Using a salt template-based approach with nickel chloride, they produced carbon nanosheets with high catalytic efficiency. The study demonstrates a promising approach for upcycling plastic waste into useful water purification catalysts.
Peroxymonosulfate activation by assistance of Co₃O₄/g-C₃N₄ nanocomposite and UVC for efficient microplastic photodegradation
Researchers developed a cobalt-based nanocomposite (Co3O4/g-C3N4) that, when activated by UVC light and a chemical oxidant, degraded up to 55% of PET and polypropylene microplastics in water through highly reactive free radicals. The approach offers a promising photocatalytic strategy for breaking down plastic pollution in water treatment systems.
Impact of microplastics on 4-chlorophenol degradation via MnOOH-catalyzed periodate activation
Researchers found that microplastics interfere with the MnOOH-catalyzed periodate oxidation process used to degrade the toxic phenolic compound 4-chlorophenol in water, with MP surfaces adsorbing both the catalyst and contaminant in ways that reduce treatment efficiency.
Pair‐Resolved Fe–M Dual‐Atom Catalysts for Programmed PMS Activation: Mechanisms, Membrane Confinement, and Standardized Benchmarks
This review examined iron-based dual-atom catalysts (Fe-M DACs) for peroxymonosulfate (PMS) activation, a system relevant to advanced oxidation of water contaminants including microplastics. The authors provide a pair-resolved analysis of how metal pairings determine reaction pathways and treatment selectivity.
Process analysis of microplastic degradation using activated PMS and Fenton reagents
Researchers demonstrated that activated peroxymonosulfate and Fenton reagents can degrade nylon and polystyrene microplastics through free radical oxidation, achieving mass losses exceeding 20% after four treatment cycles.
Tandem catalysis in electrocatalytic nitrate reduction: Unlocking efficiency and mechanism
This review covers recent progress in designing catalysts that can efficiently convert harmful nitrate pollution in water into harmless nitrogen gas using electricity. While not directly about microplastics, the technology is relevant because nitrate and microplastic contamination often co-occur in polluted water, and better water treatment methods could address multiple pollutants. The research advances environmentally friendly approaches to cleaning up contaminated water supplies.
Effect of Fe and Al based coagulants and disinfectants on polyethylene microplastics removal in coagulation process through response surface methodology
Researchers optimized polyethylene microplastic (PEMP) removal from drinking water using response surface methodology (RSM) with Box-Behnken Design, testing pH, PEMP size, coagulant dosage, and polyacrylamide dosage as independent variables. Comparing ferric chloride and poly aluminum chloride as coagulants, they identified optimal conditions for maximizing PEMP removal efficiency, providing guidance for improving microplastic removal at drinking water treatment plants.
Optimization of polypropylene microplastics removal using conventional coagulants in drinking water treatment plants via response surface methodology
Researchers optimized coagulation of polypropylene microplastics from drinking water using polyaluminium chloride as coagulant and response surface methodology to identify optimal conditions. The maximum predicted removal rate under optimal conditions (pH 9, 200 ppm PACl, 21 ppm polyacrylamide) was approximately 19.7% for the smallest microplastic size tested, indicating that conventional coagulation alone has limited effectiveness for polypropylene microplastics.
Peroxymonosulfate Activation by Facile Fabrication of α-MnO2 for Rhodamine B Degradation: Reaction Kinetics and Mechanism
This is a water chemistry study demonstrating that manganese dioxide nanowires can efficiently break down the dye Rhodamine B in water using an advanced oxidation process; it is not a microplastics research paper.
Sustainable Remediation of Polyethylene Microplastics via a Magnetite-Activated Electro-Fenton System: Enhancing Persulfate Efficiency for Eco-Friendly Pollution Mitigation
Researchers developed a new water treatment system combining electro-Fenton technology with magnetite-activated persulfate to break down polyethylene microplastics. The system achieved over 78% removal of microplastics while being more environmentally friendly than conventional chemical methods. This type of advanced treatment technology could help remove microplastics from drinking water and wastewater, reducing human exposure.
Emerging PMS-Based LMO–COF Membrane with Improved Stability for the Mineralization of Micropollutants and Rejection of Nanoplastics from Wastewater
Researchers developed a novel layered metal oxide-covalent organic framework (LMO-COF) membrane integrated with peroxymonosulfate oxidation to simultaneously remove pharmaceutical micropollutants and nanoplastics from wastewater, achieving improved stability and mineralization performance.
Modulating oxidative capacity to simultaneously enhance microplastics aging and reduce adsorption performance: A novel approach to environmental remediation
Researchers developed a method that modulates oxidative capacity during microplastic aging to simultaneously generate oxygen-containing surface groups—which increase pollutant adsorption—while degrading the plastic particles, combining aging and degradation in a single process.
Surface characteristic and sinking behavior modifications of microplastics during potassium permanganate pre-oxidation
Researchers found that potassium permanganate pre-oxidation treatment modifies the surface characteristics of microplastics in drinking water, altering their sinking behavior and affecting how they are processed during water treatment.
Effects of advanced oxidation processes on leachates and properties of microplastics
Ozonation, Fenton, and heat-activated persulfate treatments were applied to microplastics containing pigment red, finding that all three advanced oxidation processes effectively degraded the released pigment and altered nanoscale surface properties of the treated MPs.
Metal-Doping Induced Catalytic Suitability of CoWO4@3D-Printed Electrode for Nitrate Reduction Coupled Glycerol Oxidation
Not relevant to microplastics — this paper is about engineering metal-doped electrodes for electrochemical conversion of nitrate to ammonia, with no connection to plastic pollution.
Efficient tetracycline hydrochloride degradation via peroxymonosulfate activation by N doped coagulated sludge based biochar: Insights on the nonradical pathway
Researchers found a way to repurpose waste sludge from microplastic removal processes by converting it into a nitrogen-doped carbon material that can break down the antibiotic tetracycline in water. The recycled material performed well across a wide pH range and worked primarily through a nonradical pathway to degrade the antibiotic. The study offers a dual benefit approach that addresses both microplastic waste management and antibiotic contamination in water systems.
Engineering functional nanocomposites for enhanced AOP-mediated microplastic mineralization: From mechanistic insights to water remediation strategies
This review examines how advanced oxidation processes such as photocatalysis, Fenton reactions, and electrocatalysis can be used to break down microplastics in water. Researchers evaluated the strengths and limitations of each technique and explored how functional nanomaterials can enhance degradation performance. The study highlights promising directions for developing scalable water treatment solutions to address microplastic contamination.