We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
61,005 resultsShowing papers similar to Complete Photocatalytic Mineralization of Microplastic on TiO2 Nanoparticle Film
ClearMicroplastic 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.
Investigation of the efficiency of several TiO2 microstructures for the photocatalytic degradation of nanoplastics.
Researchers tested the efficiency of multiple titanium dioxide microstructures for photocatalytic degradation of nanoplastics in aquatic environments, addressing the growing problem of sub-micron plastic fragments in global water systems. TiO2-based photocatalysis showed varying effectiveness depending on catalyst structure and particle properties.
Unravelling the photocatalytic degradation of polyethylene microplastics with TiO2 under UV light: Evidence from kinetic studies
Researchers demonstrated that a titanium dioxide photocatalyst under UV light can break down polyethylene microplastics, achieving 34% mass loss in 8 hours and up to 54% over five treatment cycles. The process physically shrank the particles and chemically transformed them into simpler compounds like short-chain acids and carbon dioxide. While not yet ready for large-scale use, this technology could eventually help degrade microplastics in water treatment systems.
Mechanistic vision on polypropylene microplastics degradation by solar radiation using TiO2 nanoparticle as photocatalyst
Researchers demonstrated that titanium dioxide nanoparticles acting as a photocatalyst under sunlight can degrade polypropylene microplastics in water. After 50 hours of exposure, the microplastics lost about 50% of their weight as the sunlight-activated catalyst broke down the plastic's chemical structure. The study offers a potential approach for using solar-powered photocatalysis to address microplastic contamination in aquatic environments.
Investigation of the efficiency of several TiO2 microstructures for the photocatalytic degradation of nanoplastics.
This study tested the efficiency of several TiO2 microstructures as photocatalysts for degrading nanoplastics in aquatic environments. Results identified the most effective TiO2 configurations for breaking down sub-micron plastic fragments under light exposure.
Degradation of primary nanoplastics by photocatalysis using different anodized TiO2 structures
Researchers used anodized titanium dioxide photocatalysts to degrade polystyrene nanoparticles in water under UV light, finding that a mixed nanotube/nanograss TiO2 structure reduced nanoplastic concentrations twice as effectively as UV photolysis alone, as confirmed by turbidity, total organic carbon, and mass spectrometry measurements.
Degradation of Emerging Plastic Pollutants from Aquatic Environments Using TiO2 and Their Composites in Visible Light Photocatalysis
This review examines how titanium dioxide-based photocatalysts can degrade microplastics and nanoplastics under visible light conditions. Researchers found that while some composite materials achieved complete degradation of polystyrene particles, overall effectiveness remains limited at the laboratory scale. The study identifies key challenges and proposes future directions for developing more efficient photocatalytic approaches to plastic pollution remediation in water.
Preliminary investigation of microorganisms potentially involved in microplastics degradation using an integrated metagenomic and biochemical approach
This study evaluated the photocatalytic degradation of microplastics using titanium dioxide nanoparticles under UV irradiation, achieving significant fragmentation of polystyrene particles within 48 hours. The approach shows promise for treating microplastic-contaminated water but generates smaller fragments as byproducts.
Photocatalytic degradation of polyethylene microplastics by copper-doped titanium dioxide nanoparticles
Researchers investigated photocatalytic degradation of polyethylene microplastics using copper-doped titanium dioxide nanoparticles as an efficient approach to breaking down aquatic plastic pollution, addressing the limitations of conventional removal methods that only achieve surface-level reduction.
Advanced TiO2-based catalysts for polypropylene degradation in aquatic media
Researchers developed TiO2-based catalysts enhanced with zinc and cerium oxides to degrade polypropylene microplastics in water under UV light. The best-performing catalyst achieved roughly 6-8% degradation of microplastic surface area, with slightly lower effectiveness in wastewater compared to pure water. The study demonstrates a photocatalytic approach to breaking down one of the most common microplastics found in aquatic environments.
Current Approach to Develop TiO2 Thin Film as Photocatalysts for Low-Density Plastic Degradation
This review covers titanium dioxide thin-film photocatalysts as a method for breaking down low-density polyethylene plastic waste using light energy. While photocatalysis shows promise for degrading plastic into carbon dioxide and water, challenges remain in scaling up the process and achieving complete mineralization of complex plastic materials.
First Insights into Photocatalytic Degradation of HDPE and LDPE Microplastics by a Mesoporous N–TiO2 Coating: Effect of Size and Shape of Microplastics
A nitrogen-doped titanium dioxide photocatalyst successfully degraded high-density and low-density polyethylene microplastics under visible light, with smaller particles showing greater degradation than larger ones or film-shaped particles. The study establishes a foundation for visible-light photocatalysis as a potential strategy for removing microplastics from water.
Microplastic Pollutant Degradation in Water Using Modified TiO2 Photocatalyst Under UV-Irradiation
This study tested modified titanium dioxide (TiO2) photocatalysts for their ability to degrade microplastic pollutants in water using light-driven oxidation. Modified TiO2 showed improved photocatalytic activity against microplastics compared to unmodified TiO2, which suffers from limited efficiency under visible light.
Recent advances and protocol summaries for degradation of polyethylene microplastics using TiO 2 ‐based photocatalysts
This review summarizes recent advances in using TiO2-based photocatalysts to degrade polyethylene microplastics. Researchers examined the mechanisms of photocatalytic degradation and compared degradation efficiencies across studies, noting that wide variation in experimental conditions makes direct comparisons challenging. The study aims to contribute to establishing standardized laboratory protocols for photocatalytic microplastic degradation research.
Integration of Photocatalysis and Membrane Technology as a Hybrid System for Microplastic Degradation in Wastewater
Researchers evaluated a hybrid system combining TiO2 photocatalysis with membrane filtration for degrading microplastics in wastewater. The photocatalytic membrane reactor demonstrated effective removal and degradation of polyethylene, polypropylene, and PET microplastics, suggesting that integrated photocatalytic-membrane systems could improve microplastic removal beyond what conventional wastewater treatment achieves.
TiO2-based photocatalysts for the degradation of microplastics in aquatic environments
Researchers synthesized TiO2-based photocatalysts via sol-gel and hydrothermal methods and characterized their morphology and photocatalytic properties for the degradation of microplastics in aqueous environments, optimizing catalyst formulations to improve efficiency and assessing their potential as an environmentally friendly advanced treatment for waterborne microplastic pollution.
Low Environmental Impact Remediation of Microplastics: Visible-Light Photocatalytic Degradation of PET Microplastics Using Bio-Inspired C,N-TiO2/SiO2 Photocatalysts
Researchers developed bio-inspired carbon and nitrogen co-doped TiO2/SiO2 photocatalysts capable of degrading PET microplastics under visible light, offering a low-energy alternative to UV-based photocatalysis for remediating microplastic contamination in aquatic environments.
A novel route for microplastic mineralization: visible-light-driven heterogeneous photocatalysis and photothermal Fenton-like reaction
Researchers developed a novel photocatalytic system using alpha-Fe2O3 nanoflowers on TiO2 nanotube arrays that achieves efficient microplastic mineralization through combined visible-light-driven heterogeneous photocatalysis and photothermal Fenton-like reactions.
TiO₂-based photocatalytic degradation of microplastics in water: Current status, challenges and future perspectives
This review examines how titanium dioxide-based materials can break down microplastics in water using light energy, generating reactive molecules that dismantle plastic polymer chains. While promising, the technology still faces challenges with efficiency and potential harmful byproducts, and more research is needed before it can be used at scale to clean microplastics from real-world water supplies.
Photocatalytic Degradation of Plastic Waste: Recent Progress and Future Perspectives
This review examined photocatalytic degradation as an environmentally friendly approach to destroying microplastic waste, focusing on nanomaterial-based semiconductors such as TiO2 and ZnO. The review highlighted recent progress and remaining challenges in developing efficient photocatalytic systems capable of fully mineralizing persistent plastic pollutants.
Concentration-Dependent Surface Oxidation of Polystyrene Microplastics in TiO2-Coated Hollow Glass Microsphere Composites Under UV Radiation in Solid-State Conditions
This study investigated whether exposing polystyrene microplastics embedded in a titanium dioxide composite to UV light under dry conditions actually breaks down the plastic in bulk, or merely oxidizes its surface. The results showed that surface oxidation increased with higher photocatalyst concentrations, but this did not translate into meaningful breakdown of the plastic's internal structure. The finding is a caution against interpreting surface chemical changes as evidence of true microplastic degradation — an important distinction for evaluating environmental remediation technologies.
TiO2-Based Photocatalysis for Plastic Degradation
This review examines TiO2-based photocatalysis as a strategy for degrading macroplastics, microplastics, and nanoplastics, highlighting TiO2's advantages of high activity, low cost, and availability. The paper addresses the social justice dimension of plastic pollution, noting that vulnerable populations are disproportionately affected, and evaluates TiO2 photocatalytic degradation mechanisms and performance for a range of plastic types.
Synthesizing a Ternary TiO 2 @g‐C 3 N 4 /UiO‐66 Photocatalyst From Waste Polyethylene Terephthalate Plastic to Treat Polystyrene Microplastics in Polluted Water
Scientists created a photocatalyst using recycled plastic bottles (PET) and used it to break down polystyrene microplastics in water under visible light, achieving 90% degradation within 30 hours. The approach cleverly uses plastic waste as both a raw material and a target, turning one pollution problem into a tool for solving another. This proof-of-concept suggests a potentially scalable method for removing microplastics from water using sunlight-driven chemistry.
Silver Nanoparticles/Titanium Dioxide Nanowires Photocatalyst Formation for Microplastic Removal Using Ultraviolet Radiation
Researchers synthesized silver nanoparticle-decorated titanium dioxide nanowires (Ag/TiO2 NWs) via thermal oxidation and wet impregnation, then evaluated the photocatalytic efficiency of this heterojunction material for degrading polypropylene microplastics under ultraviolet radiation.