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Papers
61,005 resultsShowing papers similar to Estudo da eletrossíntese de peróxido de hidrogênio em reatores eletroquímicos utilizando eletrodo de difusão gasosa de carbono amorfo com benzofenona
ClearGreen Hydrogen Peroxide: Advances of Electrocatalytic Generation and Applications in High‐Value Chemical Conversion
This review examines advances in electrocatalytic generation of hydrogen peroxide as an environmentally friendly oxidant for green chemistry applications, including water treatment processes that can degrade microplastics and other persistent organic pollutants.
Electrochemical degradation of nanoplastics in water: Analysis of the role of reactive oxygen species
Researchers investigated electrochemical methods for degrading nanoplastics in water and analyzed the role of different reactive oxygen species in the process. They found that the electro-peroxidation process was about 2.6 times more effective than standard electrooxidation, achieving up to 86.8% nanoplastic degradation under optimized conditions. The study presents a promising advanced treatment approach for addressing nanoplastic contamination in water.
Boosted Electrocatalytic Degradation of Levofloxacin by Chloride Ions: Performances Evaluation and Mechanism Insight with Different Anodes
Researchers investigated how chloride ions in natural water affect the electrocatalytic degradation of the antibiotic levofloxacin using different electrode types. The study found that chloride presence significantly boosted degradation performance, providing insights into how water chemistry influences the effectiveness of advanced oxidation processes for removing pharmaceutical pollutants.
Electrochemical oxidation of losartan on a BDD electrode: Influence of cathodes and electrolytes on the degradation kinetics and pathways
Researchers studied how different electrolytes and electrode materials affect the electrochemical breakdown of the blood pressure medication losartan in water. The study found that chloride-based electrolytes were more effective at removing the drug than sulfate-based ones, and that adding persulfate improved the process up to a point. These findings help advance methods for removing pharmaceutical contaminants from water supplies.
Análise da combinação das tecnologias de adsorção em carvão ativo granular e oxidação eletroquímica para o tratamento de efluentes contaminados com benzeno
Researchers investigated the combination of granular activated carbon adsorption and electrochemical oxidation for treating wastewater contaminated with benzene and other volatile organic compounds, finding that pairing adsorption with electrochemical methods improved removal efficiency for contaminants present at low concentrations.
Estudo da degradação de microplásticos em água e efluente secundário de estação de tratamento de esgoto por processos baseados em ozônio
This Brazilian study tested ozone-based water treatment processes for degrading polyethylene microplastics in both clean water and secondary wastewater effluent. While ozonation could break down microplastics into smaller fragments and dissolved organic carbon, it did not fully eliminate them, suggesting the need for combined treatment approaches.
Electrochemical remediation of microplastics: Progress and prospects in water treatment
This review examines electrochemical methods for removing microplastics from water, including electrocoagulation, electro-oxidation, and the electro-Fenton process. Evidence indicates that electro-oxidation can achieve removal rates as high as 99 percent under optimized conditions. The study highlights these techniques as promising alternatives for water treatment but calls for further research to scale them up for real-world applications.
From Fenton and ORR 2e−-Type Catalysts to Bifunctional Electrodes for Environmental Remediation Using the Electro-Fenton Process
This review covers the development of bifunctional electrocatalysts that combine Fenton reaction activity with selective 2-electron oxygen reduction to produce H2O2 in situ for the electro-Fenton process, enabling energy-efficient degradation of emerging contaminants in water without external peroxide addition.
Advanced electrocatalytic redox processes for environmental remediation of halogenated organic water pollutants
Researchers reviewed advanced electrochemical methods for breaking down halogenated organic pollutants in water, which are persistent contaminants found in many industrial and consumer products. The study examined how electrocatalytic processes can target the strong carbon-halogen bonds that make these chemicals so resistant to natural degradation. The findings suggest that these emerging treatment technologies hold promise for cleaning up contaminated water sources more effectively than conventional methods.
Research Progress on Electrochemical Oxidaiton of Aqueous Organic Pollutants Through Ti/SnO2-Sb Anodes
Despite its title referencing electrochemical oxidation of organic pollutants, this paper studies how titanium-based anodes (Ti/SnO2-Sb) can be improved for breaking down industrial dyes, pharmaceuticals, and petrochemical wastewater — not microplastic pollution. It examines electrode fabrication and modification strategies for advanced water treatment and is not relevant to microplastics or human health.
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.
Step-by-step guide for electrochemical generation of highly oxidizing reactive species on BDD for beginners
This paper provides a beginner-friendly guide for generating hydroxyl radicals on boron-doped diamond electrodes, which are used in advanced water treatment. Researchers walk through each step from electrode activation to optimizing conditions for breaking down the antibiotic amoxicillin. The study suggests this approach can be an effective method for degrading pharmaceutical pollutants in water.
Application of Electrochemical Oxidation for Water and Wastewater Treatment: An Overview
This review covers electrochemical oxidation, an advanced water treatment method that uses electricity to break down stubborn pollutants in wastewater. The technique can remove pharmaceuticals, dyes, and other persistent chemicals that standard treatment misses. While not specifically about microplastics, this type of advanced treatment technology is relevant to addressing the growing problem of emerging contaminants in drinking water.
Norfloxacin removal by ultraviolet-activated sodium percarbonate and sodium hypochlorite: process optimization and anion effect
This paper is not about microplastics; it evaluates UV-activated chemical processes for removing the antibiotic norfloxacin from water.
Elimination of chloramphenicol through electro-fenton-like reaction: Reaction mechanism and electron transfer pathway
An electro-Fenton-like process using peroxymonosulfate activation was developed to degrade the antibiotic chloramphenicol, achieving complete removal within 16 minutes with a kinetic rate constant of 0.089 per minute and low energy consumption of 25.1 kWh per cubic meter.
Application of Electrochemical Oxidation for Water and Wastewater Treatment: An Overview
This review covered electrochemical oxidation technologies for water and wastewater treatment, discussing their effectiveness against emerging pollutants, dyes, and chemicals while highlighting operational parameters that influence treatment efficiency.
Leveraging Biocatalyst‑H2O2‑Driven Microplastic Degradation: WaterborneMicroplasticBreakdown and Soil Microbial Community Shifts
Researchers developed a biocatalyst-H₂O₂-driven system for degrading microplastics in water, demonstrating that peroxidase enzymes combined with hydrogen peroxide could break down plastic polymer chains under mild conditions and produce less hazardous breakdown products.
The Photocatalytic Degradation of Enrofloxacin Using an Ecofriendly Natural Iron Mineral: The Relationship Between the Degradation Routes, Generated Byproducts, and Antimicrobial Activity of Treated Solutions
This paper is not relevant to microplastics research; it investigates the photocatalytic degradation of the antibiotic enrofloxacin in water using a natural iron mineral, focusing on pharmaceutical contamination rather than plastic particles.
Molecularly Engineered Covalent Organic Frameworks for Hydrogen Peroxide Photosynthesis
Researchers developed a covalent organic framework photocatalyst for producing hydrogen peroxide from water and air using solar energy, achieving a solar-to-chemical conversion efficiency of up to 1.08%. The resulting hydrogen peroxide solution was capable of degrading pollutants. While not directly about microplastics, this research presents a potentially useful technology for environmental remediation including pollutant degradation in water systems.