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20 resultsShowing papers similar to Electrochemical and photoelectrochemical oxidation processes for polystyrene microplastic treatment: BDD anode vs Sb-doped SnO2 ceramic anode coated with a CdFe2O4 photocatalytic layer
ClearElectrochemical and photoelectrochemical oxidation processes for polystyrene microplastic treatment: BDD anode vs Sb-doped SnO2 ceramic anode coated with a CdFe2O4 photocatalytic layer
Researchers tested two electrode types — a boron-doped diamond anode and a tin-oxide ceramic anode coated with a cadmium ferrite photocatalyst — for breaking down polystyrene microplastics using electrical current, with and without visible light. The study tracked removal efficiency, carbon mineralization, and energy consumption to compare the two systems. Findings help identify more sustainable and effective electrochemical methods for treating microplastic-contaminated water.
Electrochemical and photoelectrochemical oxidation processes for polystyrene microplastic treatment: BDD anode vs Sb-doped SnO2 ceramic anode coated with a CdFe2O4 photocatalytic layer
Researchers compared two electrode-based methods for breaking down polystyrene microplastics in water: a boron-doped diamond anode and a ceramic anode with a light-activated coating. Both approaches achieved over 95% removal of microplastics, with the diamond anode reaching up to 99% efficiency. The study demonstrates that electrochemical oxidation is a promising technology for removing microplastic contamination from water.
Enhancing the degradation of polystyrene and polyethylene terephthalate microplastics in water using electrochemical treatment at neutral pH
Researchers tested an electrochemical method using a boron-doped diamond anode to break down polystyrene and PET microplastics in water at neutral pH. They found that optimizing current intensity and treatment time led to significant degradation of both plastic types, with measurable reductions in particle mass and changes in surface chemistry. The study demonstrates that electro-oxidation could be a viable approach for treating microplastic-contaminated water without needing to add chemicals.
Comparative Analysis of Electrochemical Oxidation and Biodegradation for Microplastic Removal in Wastewater
Researchers compared electrochemical oxidation and biodegradation for removing polystyrene microplastics from wastewater, finding that electrochemical oxidation achieved superior removal efficiency and could serve as a more effective treatment pathway at wastewater treatment plants.
Electrochemical removal of polystyrene nanoplastics in a filter-press reactor using modified Ti-felt anodes [Dataset]
This dataset accompanies a study testing an electrochemical reactor designed to destroy polystyrene nanoplastics in water. It provides the raw experimental data supporting the published findings on how different electrode designs and reactor flow configurations affect nanoplastic removal efficiency.
Treatment of microplastics in water by anodic oxidation: A case study for polystyrene
Anodic oxidation (electrooxidation) was tested as a method for degrading polystyrene microplastics suspended in water. The electrochemical treatment showed progressive microplastic degradation, demonstrating potential for electrooxidation as a water treatment approach targeting suspended plastic particles.
Promoting removal of polystyrene microplastics from wastewater by electrochemical treatment
Researchers demonstrated that electrochemical treatment using specialized diamond electrodes can break down polystyrene microplastics in water by generating powerful oxidizing molecules. While still at the lab scale, this approach could eventually help remove microplastics from wastewater before they reach the environment and enter the human food chain.
Effective degradation of polystyrene microplastics by Ti/La/Co-Sb-SnO2 anodes: Enhanced electrocatalytic stability and electrode lifespan
Researchers developed a new electrode that can break down polystyrene microplastics in water through an electrical process called electrocatalytic oxidation. By adding cobalt as an intermediate layer, they significantly extended the electrode's lifespan without sacrificing its ability to degrade microplastics. The study suggests this technology could offer a practical and durable method for removing microplastic pollution from water.
Removal of polystyrene nanoplastics from urban treated wastewater by electrochemical oxidation
Scientists demonstrated a new method for removing polystyrene nanoplastics from treated wastewater using electrochemical oxidation with a special diamond-coated electrode. The technique achieved over 90% removal of the nanoplastics and reduced the toxicity of treated water to non-toxic levels. This approach could be a practical addition to existing wastewater treatment to address nanoplastic pollution that slips through conventional systems.
Photoelectrocatalytic degradation of high-density polyethylene microplastics on TiO2-modified boron-doped diamond photoanode
Scientists developed a new method using a light-activated diamond electrode to break down high-density polyethylene microplastics, achieving nearly 90% degradation in 10 hours. This photoelectrocatalytic approach is the first of its kind for HDPE and works at lower energy levels than previous methods. Developing effective ways to destroy microplastics is important for cleaning up contaminated water and reducing human exposure.
Electrochemical oxidation degradation of polystyrene nanoplastics by Sm-Mn intermediate layer Ti/Sb-SnO2 anode: Composite metal elements enhance electron transfer and promote the generation of hydroxyl radicals
Researchers developed a titanium anode co-doped with samarium and manganese to electrochemically degrade polystyrene nanoplastics in water, achieving 58.75% removal efficiency and an 825-hour electrode lifespan, with density functional theory calculations revealing that the bimetal synergy accelerates electron transfer and hydroxyl radical generation that cleave plastic polymer chains.
Microplastic pollution reduction by a carbon and nitrogen-doped TiO2: Effect of pH and temperature in the photocatalytic degradation process
Scientists tested a carbon and nitrogen-doped TiO2 photocatalyst for degrading microplastics and found that degradation efficiency depended strongly on pH and temperature, with optimal conditions achieving significant surface mineralization of tested polymer types.
Electrochemical Oxidation of Selected Micropollutants from Environment Matrices Using Boron-Doped Diamond Electrodes: Process Efficiency and Transformation Product Detection
This study applied electrochemical oxidation to degrade selected micropollutants from real environmental water matrices, evaluating electrode materials and operating conditions. The approach achieved high removal efficiency for persistent contaminants that resist conventional wastewater treatment.
Microplastic removal from urban stormwater: Current treatments and research gaps
Researchers investigated the phototransformation of polystyrene microplastics under simulated solar radiation, finding surface oxidation and formation of carbonyl groups after UV exposure. Photo-aged particles showed increased release of dissolved organic carbon and greater toxicity to marine copepods.
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.
Investigation of the influence of polystyrene microplastics in wastewater on anode biofilm viability and electron transfer in microbial fuel cells performance
Researchers found that polystyrene microplastics in wastewater reduce the electricity-generating ability of microbial fuel cells — devices that use bacteria to turn waste into power — by disrupting the bacterial biofilms that transfer electrons to electrodes. Carbon-based electrodes were more resistant to microplastic interference than metal ones, suggesting material choice matters when designing systems 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.
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.
Photocatalytic and biological technologies for elimination of microplastics in water: Current status
This review examines emerging photocatalytic and biological technologies for breaking down microplastics in water, since conventional treatment facilities can capture but not fully destroy these particles. Researchers found that while photocatalysis and microbial degradation show promise, their effectiveness varies widely and the underlying mechanisms are only partly understood. The study highlights the urgent need for more efficient solutions to eliminate rather than simply filter out microplastic pollution from water supplies.
Photodegradation of microplastics through nanomaterials: Insights into photocatalysts modification and detailed mechanisms
This review explores how nanomaterial-enhanced photocatalysts can break down microplastics that conventional water treatment fails to remove. The paper details key strategies like element doping and heterojunction construction that improve degradation efficiency, and explains the underlying mechanisms involving free radical formation and singlet oxygen oxidation.