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61,005 resultsShowing papers similar to Plasma-assisted destruction of polystyrene nanoplastics
ClearPolystyrene (PS) Degradation Induced by Nanosecond Electric Discharge in Air in Contact with PS/Water
Researchers assessed the degradation efficiency of polystyrene microplastics by nanosecond electric discharge in air in contact with water, evaluating plasma-based treatment as an alternative to conventional water treatment methods that fail to remove plastics. The study quantified polystyrene degradation and characterized breakdown products under different discharge conditions.
Enhancing nanoplastics removal by metal ion-catalyzed ozonation
Researchers found that while standard ozone water treatment reduced the size of polystyrene nanoplastics by over 99% in under five minutes, it left behind smaller fragments and achieved only 16% actual destruction; adding cobalt as a catalyst dramatically improved breakdown to 70% mineralization. The findings reveal an important trade-off: ozonation used for water disinfection may actually generate more, smaller nanoplastic particles unless a catalytic process is included.
Oxidation of polystyrene nanoparticles using ozonation under catalytic and non-catalytic conditions
This study tested whether ozone treatment — a powerful oxidant used in water treatment — can break down polystyrene nanoparticles, which persist through conventional water treatment processes. Ozonation achieved partial degradation of the nanoplastics under both catalytic and non-catalytic conditions, with surface oxidation and chain scission as the main degradation mechanisms. The findings suggest advanced oxidation processes could be adapted to remove nanoplastics from drinking water, a critical gap in current treatment infrastructure.
Complete degradation of polystyrene microplastics through non-thermal plasma-assisted catalytic oxidation
Researchers developed a two-stage non-thermal plasma system for degrading polystyrene microplastics at low temperatures. Using dielectric barrier discharge plasma coupled with a catalytic oxidation step, they achieved near-complete conversion of polystyrene particles to carbon dioxide within 60 minutes. The study demonstrates a promising technology for breaking down microplastic pollution without requiring high-temperature incineration.
Enhanced ozonation of polystyrene nanoplastics in water with CeOx@MnOx catalyst
Researchers developed a core-shell CeOx@MnOx catalyst to enhance ozone-based degradation of polystyrene nanoplastics in water, finding that the catalyst significantly improved removal efficiency. The system offers a promising approach for treating nanoplastic-contaminated water given the difficulty of natural decomposition.
Efficient degradation of polystyrene microplastic pollutants in soil by dielectric barrier discharge plasma
Researchers used a plasma-based technique called dielectric barrier discharge to break down polystyrene microplastics in soil and achieved a degradation rate of nearly 99 percent within one hour. The process works by generating reactive oxygen species that chemically decompose the plastic, converting most of it into carbon dioxide. The study presents this technology as a fast and energy-efficient approach for treating microplastic-contaminated soil.
Investigation of the Effectiveness of O2 Plasma Pretreatment for the Decomposition of (Micro)Plastics in Water
Researchers investigated whether oxygen plasma pretreatment could enhance the decomposition of microplastics in water. The study evaluated this approach as a potential solution for breaking down plastic particles that serve as carriers of contaminants in aquatic environments, contributing to the search for effective technologies to address waterborne microplastic pollution.
Efficient extraction of polystyrene nanoplastics from water using an ionic liquid
Researchers developed an ionic liquid-based extraction method for efficiently removing polystyrene nanoplastics from water samples. The technique achieved high recovery rates and demonstrated effectiveness for capturing particles at environmentally relevant concentrations. The study offers a promising analytical and remediation tool for addressing nanoplastic contamination in aquatic environments.
Fate and removal efficiency of polystyrene nanoplastics in a pilot drinking water treatment plant
Researchers investigated how effectively a pilot-scale drinking water treatment plant removes polystyrene nanoplastics. The study found that sand and activated carbon filtration alone achieved 88.1% removal, but adding a coagulation step dramatically improved removal efficiency to 99.4%, with most nanoplastics captured during the sand filtration process.
Degradation of Polystyrene Nanoplastics in UV/NaClO and UV/PMS Systems: Insights into Degradation Efficiency, Mechanism, and Toxicity Evaluation
Researchers tested two advanced oxidation methods for breaking down polystyrene nanoplastics in water and found that while both effectively reduced water cloudiness, neither completely destroyed the plastic particles. The UV/PMS system achieved about 29% mineralization compared to only 7% for UV/NaClO, though both generated some toxic byproducts. The study suggests that advanced oxidation processes show promise for nanoplastic removal from water but require further optimization to achieve complete degradation.
Advanced polystyrene nanoplastic remediation through electro-Fenton process: Degradation mechanisms and pathways
Researchers developed a new method using an electro-Fenton process with a copper-cobalt catalyst to break down polystyrene nanoplastics in water, achieving nearly 95% removal efficiency. The system generates powerful molecules called hydroxyl radicals that chemically decompose the plastic particles. While this is a laboratory-scale study, it demonstrates a promising technology that could help remove nanoplastics from drinking water and wastewater.
A Study on the Degradation of Polymethyl Methacrylate Microplastics by Plasma Reaction System in Solution
Researchers used a plasma reaction system to degrade polymethyl methacrylate (PMMA) microplastics in water, finding that voltage, frequency, and hydrogen peroxide concentration all affected degradation rates. Plasma-based treatment systems show potential as an advanced approach to breaking down microplastic particles in contaminated water.
Environmental aspects of restoring the environment: nanotechnology for removing micro and nanoplastics from water
Researchers developed a plasma chemical water purification method that combines modified humic substances with high-voltage electrical discharge to aggregate and magnetically remove micro- and nanoplastics from contaminated water. Tested on wastewater from a printing facility, the method outperformed conventional sorption or plasma treatment alone and showed promise for simultaneously removing plastics, heavy metals, and organic pollutants. This offers a potentially scalable technology for treating industrial wastewater sources that are currently releasing nanoplastics to the environment.
Atmospheric cold plasma as a novel approach to remediating microplastics pollution in water
Scientists demonstrated for the first time that atmospheric cold plasma — an energy-efficient technology that generates highly reactive molecules — can break down polypropylene and polyethylene microplastics in water. The treatment degraded the microplastics by up to 11% in just 30 minutes through oxidation reactions. While still in early stages, this low-cost approach could eventually become a practical method for removing microplastics from drinking and wastewater.
Evaluating the performance of electrocoagulation system in the removal of polystyrene microplastics from water
Researchers tested electrocoagulation, a water treatment method that uses electric current to clump particles together, for removing polystyrene microplastics from water. Using aluminum electrodes at neutral pH, they achieved over 90% removal efficiency. This technology could provide a practical and effective way to remove microplastics from drinking water and wastewater, reducing human exposure to these contaminants.
Current Approaches and Challenges in Advanced Oxidation Processes for Nanoplastic Degradation
This review evaluates current methods for breaking down nanoplastics in water, including ozonation, electrochemical treatment, photocatalysis, and plasma-based processes. Researchers found that while these advanced oxidation techniques show promise, significant gaps remain in treating plastic particles smaller than one micrometer. The study highlights the urgent need for better analytical methods and more effective treatment technologies to address nanoplastic pollution in water sources.
Ozone-mediated breakdown of microplastics in aqueous environments
Researchers examined how ozone-based advanced oxidation processes break down microplastics in water treatment settings. They found that while ozone can degrade certain plastics, the effectiveness varies depending on particle size, polymer type, and treatment conditions, and the process may generate nanoplastic byproducts. The study highlights both the promise and limitations of ozone treatment as a strategy for removing microplastics from wastewater.
Improving nanoplastic removal by coagulation: Impact mechanism of particle size and water chemical conditions
Researchers found that coagulation using aluminum chlorohydrate and polyacrylamide achieved up to 98.5% removal efficiency for polystyrene nanoplastics, with smaller particles being easier to remove, though humic acid in water competed for adsorption sites and reduced effectiveness.
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.
Effect of ozonation on the morphological characteristics and adsorption behavior of polystyrene microplastics in aqueous environments
Researchers exposed polystyrene microplastics to ozone treatment and found that the aging process made the particles smaller, more negatively charged, and better at absorbing pollutants from water — meaning weathered microplastics in the environment may carry more harmful chemicals than fresh ones.
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.
Efficient removal of nanoplastics from synthetic wastewater using electrocoagulation
Researchers demonstrated that electrocoagulation using aluminum electrodes can remove more than 95% of polystyrene nanoplastics from synthetic wastewater, offering a promising treatment upgrade for conventional wastewater plants that currently allow nanoplastics to pass through.
Su arıtımı için lazer yardımlı mikroplastik işleme ve izleme stratejisi geliştirilmesi
Researchers investigated laser-induced degradation of polystyrene microplastics in aqueous environments using three laser sources, finding that femtosecond laser irradiation achieved detectable microplastic degradation at concentrations as low as 2 fM with a maximum 42% decrease in particle number density. The study demonstrated ultrafast laser treatment as a potential technique for degrading highly dilute microplastic suspensions in water treatment applications.
Efficient removal of nano- and micro- sized plastics using a starch-based coagulant in conjunction with polysilicic acid
Researchers found that combining a starch-based coagulant with polysilicic acid efficiently removes nano- and micro-sized polystyrene particles from water, offering an eco-friendly coagulation approach for addressing microplastic pollution in water treatment applications.