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61,005 resultsShowing papers similar to Photo-fenton oxidation of microplastics: Impact of polymer nature
ClearPhoto-fenton oxidation of microplastics: Impact of polymer nature
Researchers tested photo-Fenton oxidation as a treatment method for microplastics, comparing degradation efficiency across different polymer types. The study found that polymer chemistry significantly influences how quickly microplastics break down under this oxidative treatment.
Insights into the degradation of microplastics by Fenton oxidation: From surface modification to mineralization
Researchers investigated Fenton oxidation of five common microplastic types, finding that while bulk particles showed modest weight losses of around 10%, polystyrene nanoplastics achieved 70% mineralization, with aromatic polymers being more susceptible to degradation.
Catalytic degradation of microplastics
This review summarizes catalytic approaches for degrading microplastics in the environment, covering photocatalysis, Fenton reactions, and other advanced oxidation methods, and evaluates their current effectiveness and limitations for addressing real-world microplastic contamination.
The Photo-Fenton Method Aids Microplastic Degradation: Experimental Findings Highlight Significant Differences Among Plastic Types
Researchers tested Fenton-based oxidation methods on three common microplastics (LDPE, PP, PVC) under varying acidity, iron, and hydrogen peroxide conditions, finding that Photo-Fenton is highly effective for LDPE and promising for PVC, but that PP is resistant to all Fenton-based treatments.
The photochemical behaviors of microplastics through the lens of reactive oxygen species: Photolysis mechanisms and enhancing photo-transformation of pollutants
This review re-examines the photochemical degradation mechanisms of microplastics through the lens of reactive oxygen species, identifying defects in the traditional autoxidation model and exploring how microplastics can enhance the photo-transformation of co-existing pollutants.
State of the art in the photochemical degradation of (micro)plastics: from fundamental principles to catalysts and applications
This review summarizes research on the photochemical degradation of plastics and microplastics into value-added products and intermediates via photocatalysis. The study covers fundamental principles and catalytic approaches for breaking down plastic pollutants that are otherwise difficult to degrade in the environment.
Developments in advanced oxidation processes for removal of microplastics from aqueous matrices
This review evaluates advanced oxidation processes for removing microplastics from water, finding that photocatalysis, Fenton reactions, and electrochemical methods can effectively degrade microplastics into smaller molecules, offering promising alternatives to conventional non-destructive treatment approaches.
Potential of Advanced Oxidation as Pretreatment for Microplastics Biodegradation
This review assessed the potential of advanced oxidation processes as pretreatment steps to enhance microplastic biodegradation, finding that UV, ozone, and Fenton-based treatments can weaken polymer structures and make them more susceptible to subsequent biological breakdown.
Evaluation of Fenton, Photo-Fenton and Fenton-like Processes in Degradation of PE, PP, and PVC Microplastics
Scientists tested whether Fenton-based chemical processes, which use iron and hydrogen peroxide to create powerful cleaning reactions, could break down common microplastics in water. They found that the photo-Fenton process (using UV light) was effective at degrading polyethylene and PVC microplastics, but polypropylene was resistant to all treatments. This research is important because it explores practical ways to destroy microplastics in water treatment, though not all plastic types respond equally.
Application of Fenton-like processes in the degradation of microplastics
This Croatian-language paper reviews how Fenton-like advanced oxidation processes can degrade microplastics in the environment. The review evaluates the effectiveness of these chemical methods as a potential tool for breaking down plastic particles in water treatment systems.
Advanced oxidation processes for the degradation of microplastics from the environment: A review
This review of 54 studies found that advanced oxidation processes including UV photocatalysis, Fenton reactions, and sonolysis can successfully degrade microplastics in water, with all reviewed techniques achieving satisfying performance in degrading various plastic types.
A Short Review on Recent Advanced Oxidation Technologies for Microplastics Degradation
This review summarizes recent advances in advanced oxidation technologies (AOTs) for degrading microplastics, evaluating methods such as UV/ozone, Fenton reactions, and photocatalysis. The authors assess the efficiency, scalability, and limitations of each approach for treating microplastic-contaminated water.
Kinetic and mechanistic insights into the photo-Fenton oxidation of polystyrene nanoplastics in water
Researchers investigated photo-Fenton oxidation kinetics and mechanisms for polystyrene nanoplastics across five initial particle sizes (140 to 1100 nm) in water, tracking treatment efficiency via turbidity and total organic carbon measurements and using transmission electron microscopy to characterize structural changes, finding that initial particle size influenced degradation rates.
Innovations in chemical degradation technologies for the removal of micro/nano-plastics in water: A comprehensive review
This review summarizes advances in chemical degradation technologies for removing micro- and nanoplastics from water, including photocatalysis, Fenton-based reactions, electrochemical oxidation, and micro/nanomotor approaches. Researchers analyzed the key factors that influence degradation effectiveness, such as particle properties and operating conditions. The study identifies current challenges and outlines future directions for developing practical chemical methods to address plastic pollution in water systems.
Photocatalytic strategy to mitigate microplastic pollution in aquatic environments: Promising catalysts, efficiencies, mechanisms, and ecological risks
This review summarizes recent advances in photocatalytic degradation of microplastics, covering catalysts, mechanisms, and reactive oxygen species generation pathways. The authors call for more realistic photocatalytic materials, better mechanistic understanding of degradation intermediates, and quantitative ecological risk assessment of photocatalysis byproducts.
Phototransformation and photoreactivity of MPs-DOM in aqueous environment: Key role of MPs structure decoded by optical and molecular signatures
Researchers investigated how dissolved organic matter released from microplastics behaves during light-driven transformation in water. They found that organic matter from benzene-containing polymers showed distinctly different photoreactivity compared to matter from polyolefin-based plastics. The study reveals that the chemical structure of the parent microplastic plays a key role in determining how its dissolved byproducts react and generate reactive species in aquatic environments.
Recent Advances in Photocatalytic Removal of Microplastics: Mechanisms, Kinetic Degradation, and Reactor Design
This review examines photocatalytic and photo-Fenton approaches for degrading microplastics including PE, PP, PVC, PS, PMMA, and PA66, covering reaction mechanisms, kinetic degradation models, characterization techniques for the major polymer types, and the design and scale-up of photocatalytic reactors as practical tools for microplastic removal from water.
Impacts of microplastics on organotins’ photodegradation in aquatic environments
Researchers found that polypropylene, polyethylene, polystyrene, and polymethyl methacrylate microplastics differentially affect the photodegradation of organotin compounds in aquatic environments, with microplastics both adsorbing organotins and altering their photolytic breakdown pathways depending on polymer type.
Microplastic PropertiesGovern the Photodegradationof Sorbed Anthracene in Aquatic Environments
Researchers investigated how microplastic properties govern the photodegradation of anthracene, a model hydrophobic organic contaminant, in aquatic environments, finding that polymer type, surface characteristics, and aging state significantly influenced degradation rates. The study highlights that microplastics can both facilitate and inhibit contaminant photodegradation depending on their physicochemical properties.
Advanced oxidation processes for the elimination of microplastics from aqueous systems: Assessment of efficiency, perspectives and limitations
This review evaluates advanced oxidation processes as a strategy for breaking down microplastics in water systems, comparing techniques such as photocatalysis, Fenton reactions, and ozonation. Researchers found that while these methods show promise for degrading microplastics into smaller, less harmful molecules, challenges remain in scaling them for practical use. The study identifies key limitations and suggests directions for making these technologies more efficient and applicable to real-world water treatment.
Photocatalytic Technologies for Transformation and Degradation of Microplastics in the Environment: Current Achievements and Future Prospects
This review examines photocatalytic technologies that use light-activated materials to break down microplastics in the environment. Various catalysts can generate reactive oxygen species that degrade plastic polymers into simpler, less harmful molecules. The authors assess the strengths and limitations of different photocatalytic approaches and highlight the need for scalable solutions that work under real-world environmental conditions.
Countering microplastics pollution with photocatalysis: Challenge and prospects
This review summarized the use of photocatalysis for degrading microplastics, covering catalyst types, reaction mechanisms, and operational parameters, and discussing challenges including the stability of highly polymerized plastics and prospects for scaling photocatalytic treatment to address environmental microplastic pollution.
Microplastic Properties Govern the Photodegradation of Sorbed Anthracene in Aquatic Environments
Researchers found that microplastic properties — including polymer type, surface chemistry, and aging state — govern the rate and pathway of solar photodegradation of sorbed anthracene in aquatic environments, with sorption to microplastics altering contaminant photochemical fate compared to free solution.
Insights in photocatalytic/Fenton-based degradation of microplastics using iron-modified titanium dioxide aerogel powders
This review assessed photocatalytic and Fenton-based degradation approaches for breaking down microplastics, focusing on iron-based catalysts activated by light or hydrogen peroxide. The study found these advanced oxidation processes can fragment microplastics but complete mineralization remains challenging.