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Papers
20 resultsShowing papers similar to Enhanced photocatalytic activity of electrospun TiO2/polyacrylonitrile membranes in a crossflow reactor using dual lights
ClearIntegration 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.
Fotokataliza i materiały kompozytowe TiO2/SiO2 w oczyszczaniu środowiska
This review examines the role of photocatalysis and TiO2/SiO2 composite materials as innovative methods for environmental remediation, particularly for removing water and air pollutants, while addressing the limitations of conventional treatment approaches. The analysis covers the mechanisms of TiO2 photocatalysis, its constraints including low visible-light activity, and how structural and chemical modifications through SiO2 compositing can overcome these limitations.
Uniform formation and characterization of Au/TiO2 nanoparticles for electrokinetically assisted optofluidic reactors
Researchers developed uniformly formed Au/TiO2 nanoparticles for use in plasmonic photocatalytic optofluidic reactors, addressing the limitation of TiO2's poor visible-light absorption by incorporating gold nanoparticles to enhance solar energy utilization for water purification. The study characterized the nanoparticles' formation and performance in electrokinetically assisted photocatalytic treatment of organic wastewater compounds.
Supported TiO2 in Ceramic Materials for the Photocatalytic Degradation of Contaminants of Emerging Concern in Liquid Effluents: A Review
This review systematized research on TiO2 photocatalysts supported on ceramic materials for degrading emerging contaminants in liquid effluents, comparing immobilization techniques and reactor configurations and identifying supported ceramic-TiO2 systems as a promising technology for water treatment that avoids the catalyst separation challenges of slurry reactors.
Tailoring visible-light active TiO2/cellulose nanocomposites with controlled crystalline structure for enhanced photocatalytic performance
Researchers developed a simple, low-temperature method for growing titanium dioxide nanoparticles on cellulose without the need for high-heat processing. The study found that by adjusting acid concentration and temperature, they could control the crystal structure of the nanoparticles, with a mixed-phase version achieving over 99% degradation of a test dye under visible light. These findings suggest a greener approach to creating photocatalytic materials for breaking down pollutants.
Degradation of microplastic fibers in laundry wastewater via immobilized silver-titanium dioxide based photocatalytic membrane reactor / Biao Wang
Researchers developed an immobilised silver-titanium dioxide photocatalytic membrane reactor (PMR) to remove and degrade polyester microplastic fibers (PMPF) from laundry wastewater, coating Ag-TiO2 catalyst onto Al2O3 ceramic membranes. The system achieved up to 99.9% rejection of both simulated and real PMPF and a 23.2% degradation rate after 48 hours of UVC irradiation, with FESEM and FTIR/GC-MS analysis confirming significant polyester fiber degradation.
A highly efficient supported TiO2 photocatalyst for wastewater remediation in continuous flow
This paper is not about microplastics — it presents a novel titanium dioxide photocatalyst supported on glass wool fibers for breaking down organic pollutants in wastewater under light exposure.
Photocatalytic Degradation of Sulfamethoxazole and Enrofloxacin in Water Using Electrospun Composite Photocatalytic Membrane
Researchers prepared composite photocatalytic membranes by combining titanium dioxide and reduced graphene oxide with polymer nanofibers for degrading antibiotic contaminants in water. The study found that these electrospun membranes effectively broke down sulfamethoxazole and enrofloxacin under light exposure, offering a practical and reusable approach for removing emerging pharmaceutical pollutants from water sources.
Recent Advances in Synthesis and Applications of Carbon-Doped TiO2 Nanomaterials
This review described recent advances in the synthesis and applications of carbon-doped TiO2 nanomaterials, finding that carbon incorporation broadens light absorption into the visible range, reduces electron-hole recombination, and enhances photocatalytic degradation of organic pollutants beyond what undoped TiO2 achieves.
Upscaling of Electrospinning Technology and the Application of Functionalized PVDF-HFP@TiO2 Electrospun Nanofibers for the Rapid Photocatalytic Deactivation of Bacteria on Advanced Face Masks
Researchers developed electrospun nanofiber membranes made from PVDF-HFP polymer combined with titanium dioxide for use in advanced face masks with photocatalytic antibacterial properties. The study demonstrated that these functionalized nanofiber filters effectively deactivated bacteria while maintaining high filtration performance, offering a potential alternative to conventional mask materials.
Recent Combinations of Electrospinning with Photocatalytic Technology for Treating Polluted Water
This review examined recent advances in combining electrospinning with photocatalytic technology for water treatment, highlighting how nanofiber-supported photocatalysts avoid secondary pollution while effectively degrading dyes, antibiotics, and other pollutants.
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.
Synthesis of Mixed-Phase TiO2–ZrO2 Nanocomposite for Photocatalytic Wastewater Treatment
Researchers synthesized TiO2-ZrO2 mixed-phase nanocomposite photocatalysts and demonstrated enhanced degradation of organic dyes under UV light compared to pure TiO2, with the mixed oxide structure improving light absorption and reducing electron-hole recombination for more effective wastewater treatment.
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.
Hierarchical optofluidic microreactor for water purification using an array of TiO2 nanostructures
Researchers developed a hierarchical optofluidic microreactor combining nanostructured TiO2 photocatalysts with light-harvesting substrates and herringbone micromixers, dramatically increasing the efficiency of photocatalytic water purification.
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.
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.
Performance of a Solar Driven Photocatalytic Membrane Reactor for Municipal Wastewater Treatment
Researchers evaluated the performance of a solar-driven photocatalytic membrane reactor for treating municipal wastewater, combining photocatalysis and membrane filtration powered by sunlight. The system demonstrated effective pollutant removal while reducing reliance on external energy sources for water treatment.
Processing of bio-based photocatalytic sponge-like structures containing C,N-TiO2 colloidally dispersed onto cellulose nanofibers for microplastic remediation
Researchers immobilized C,N-doped TiO2 photocatalyst onto cellulose nanofiber sponges derived from agricultural biomass, creating a bio-based photocatalytic material that degrades microplastics under light while being easily recoverable without centrifugation or filtration.
The Comparison of Metal Doped TiO2 Photocatalytic Active Fabrics under Sunlight for Waste Water Treatment Applications
Researchers developed metal-doped titanium dioxide nanoparticle-coated fabrics that can self-clean stains under sunlight, potentially reducing the need for chemical detergents during washing. The study notes that frequent textile washing releases both toxic effluents and microfibers into water systems, and these photocatalytic fabrics could help reduce that environmental burden.