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61,005 resultsShowing papers similar to Green Synthesis of Photocatalytically Active ZnO Nanoparticles Using Chia Seed Extract and Mechanistic Elucidation of the Photodegradation of Diclofenac and p-Nitrophenol
ClearZnO nanostructured matrix as nexus catalysts for the removal of emerging pollutants
Researchers reviewed the use of zinc oxide nanoparticles (ZnO NPs) as photocatalysts — materials that use light to break down pollutants — for removing emerging contaminants like pharmaceuticals and microplastics from water and wastewater. Green synthesis methods, where plants or microbes are used to manufacture the nanoparticles, showed especially high pollutant removal efficiency while reducing the environmental footprint of the process itself.
Green Synthesis of Semiconductor Nanocomposite (O-ZnO) Using Onion Peels Extract for Degradation of Organic Materials
Researchers synthesized zinc oxide nanocomposite using onion peel extract via a green synthesis route and evaluated its photocatalytic performance for removing cefixime antibiotic from aqueous solution through advanced oxidation. The synthesized O-ZnO nanocomposite was characterized by BET, XRD, FESEM, and FTIR analyses and demonstrated effective degradation of pharmaceutical organic pollutants under controlled conditions.
ZnO Semiconductor Nanoparticles and Their Application in Photocatalytic Degradation of Various Organic Dyes
Researchers synthesized zinc oxide nanoparticles using a green method with pepper plant extract and tested their ability to break down organic dyes in water under UV light. The nanoparticles achieved 100% elimination of methylene blue within 60 minutes and high degradation rates for other common dyes. The study demonstrates a sustainable approach to photocatalytic water treatment for removing organic pollutants.
Green Preparation of ZnO Nanoparticles Using Citrus aurantium L. Extract for Dye Adsorption, Antibacterial, and Antioxidant Activities
Researchers used green synthesis with Citrus aurantium extract to prepare ZnO nanoparticles, which showed effective adsorption of amaranth red dye alongside strong antibacterial and antioxidant activities, offering a low-cost and environmentally friendly nanomaterial production route.
Photocatalysis of low-density polyethylene using FKMW-ZnO NPs: optimization and predication model using a radial basis function neural network ensemble system
Researchers biosynthesised zinc oxide nanoparticles using fungal supernatant grown in kitchen wastewater with microelectronic sludge (FKMW-ZnO NPs) and evaluated their photocatalytic efficiency for degrading low-density polyethylene (LDPE) in aqueous solution. Optimisation using response surface methodology and prediction modelling with a radial basis function neural network ensemble identified the key parameters governing LDPE degradation performance.
A convenient strategy for mitigating microplastics in wastewater treatment using natural light and ZnO nanoparticles as photocatalysts: A mechanistic study
Researchers showed that zinc oxide nanoparticles can break down polypropylene microplastics using natural sunlight as an energy source. The photocatalytic process generated free radicals that attacked and degraded the plastic polymer chains. This solar-powered approach could provide a low-cost, practical method for removing microplastics from wastewater before it is discharged into the environment.
Visible Light Photocatalytic Degradation of Environmental Pollutants Using Zn-Doped NiO Nanoparticles
This study developed zinc-doped nickel oxide nanoparticles that can break down environmental pollutants using visible light. The researchers found that adding zinc improved the material's ability to absorb light and degrade harmful substances, suggesting a potential tool for cleaning up contaminated water and soil.
Effective Antibacterial/Photocatalytic Activity of ZnO Nanomaterials Synthesized under Low Temperature and Alkaline Conditions
Researchers synthesized ZnO nanomaterials under low temperature and alkaline conditions (1-4 M NaOH) and evaluated their photocatalytic degradation of methyl blue dye and antibacterial activity against both Gram-positive bacteria (Bacillus manliponensis, Micrococcus luteus, Staphylococcus aureus) and Gram-negative bacteria (Escherichia coli), finding effective performance in both applications.
Photocatalytic degradation of polyethylene films using green-synthesized ZnO and Fe3O4 nanoparticles from Acacia nilotica
Researchers synthesized ZnO and Fe3O4 nanoparticles using Acacia nilotica leaf extract and tested their photocatalytic activity against LDPE and HDPE films under sunlight, finding up to 27% weight reduction in LDPE after 30 days with FTIR and SEM evidence of carbonyl group formation and surface fragmentation indicative of polymer chain scission.
The Influence of Mechanochemical Synthesis Method on Photodegradability Characteristics of Hydroxyapatite/Zinc Oxide Composite
Researchers synthesized a ZnO/hydroxyapatite nanocomposite via mechanochemical attrition milling and evaluated its photocatalytic degradation of methyl orange dye under UV irradiation, finding that compositions with 75% ZnO and 25% ZnO showed the best combined adsorption and photodegradation performance.
Recent Progress in ZnO-Based Nanostructures for Photocatalytic Antimicrobial in Water Treatment: A Review
This review summarized recent progress in ZnO-based nanostructures for photocatalytic antimicrobial water treatment, highlighting how nanostructure morphology and doping strategies enhance reactive oxygen species generation and broaden applications for removing pathogens and micropollutants including microplastics.
Visible-light photocatalysis by carbon-nano-onion-functionalized ZnO tetrapods: degradation of 2,4-dinitrophenol and a plant-model-based ecological assessment
Researchers created a hybrid material combining carbon nano-onions (tiny carbon spheres) with zinc oxide crystals that can break down the toxic industrial chemical 2,4-dinitrophenol using only visible light. The composite was effective, reusable, and showed low toxicity to plants, suggesting promise for cleaning contaminated wastewater.
Effects of Humic Acid and Natural Sunlight Irradiation on the Behaviour of Zinc Oxide Nanoparticles in the Aqueous Environment
Humic acid and sunlight exposure both increase the rate at which zinc oxide nanoparticles dissolve and release toxic zinc ions in water, with smaller nanoparticles dissolving faster. As ZnO nanoparticles are widely used in consumer products and cosmetics, their environmental release poses risks to aquatic organisms.
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.
Green synthesis and enhanced photocatalytic activity of ZnSe nanoparticles capped with Artemisia herba-alba and calligonum plants extracts
Scientists created tiny particles using natural plant extracts that can help break down harmful chemicals in water when exposed to light. These plant-based particles worked just as well as traditional methods for cleaning contaminated water, but they're cheaper and better for the environment. This could lead to new ways to clean up polluted water sources, making drinking water safer for communities.
Degradation of Microplastics by Zinc Oxide Nanoparticles Synthesized Using Piper longum Leaf Extract
Scientists synthesized zinc oxide nanoparticles using a plant-based green chemistry method and tested whether they could break down microplastics found in human saliva. Under UV light exposure, the nanoparticles showed the ability to degrade polystyrene and polyethylene microplastics, suggesting a potential eco-friendly approach to addressing microplastic contamination.
Ultrasound-Assisted and Citric Acid-Guided Creation of ZnO Nanoparticles with Optimized Morphologies to Boost Malachite Green Photocatalysis
Despite its title referencing environmental remediation, this paper studies the synthesis of zinc oxide nanoparticles for degrading malachite green dye under simulated sunlight — not microplastic pollution. It examines photocatalysis chemistry for breaking down a persistent textile dye and is not relevant to microplastics or human health.
Facile Fabrication of Oxygen-Defective ZnO Nanoplates for Enhanced Photocatalytic Degradation of Methylene Blue and In Vitro Antibacterial Activity
Researchers fabricated ZnO nanoplates with varying oxygen defect densities by controlling crystal growth temperature and found that defect-rich nanoplates showed superior photocatalytic activity for degrading methylene blue dye and stronger antibacterial effects, linking defect engineering to photocatalyst performance.
Retracted: Synthesis characterization of Zn-based MOF and their application in degradation of water contaminants
This review examines zinc-based metal-organic frameworks (Zn-MOFs) as photocatalysts for degrading organic pollutants such as dyes in wastewater, reporting over 90% degradation efficiency and good reusability, highlighting their potential as high-surface-area nanomaterials for water treatment.
White Synthesis of ZnO/TiO2/g-C3N4 Nanoparticles and their Photocatalytic Activity for Polyvinyl Chloride Microplastic Film Degradation
Researchers synthesized novel ZnO/TiO2/g-C3N4 nanoparticles via the sol-gel method and investigated their photocatalytic activity for degrading polyvinyl chloride microplastic films under sunlight, characterizing the composite using FTIR, UV-vis DRS, XRD, XPS, HR-TEM, SEM-EDX, and TGA.
Photocatalytic Removal of Antibiotics from Wastewater Using the CeO2/ZnO Heterojunction
Researchers synthesized CeO2/ZnO heterostructure photocatalysts using sol-gel methods and demonstrated high efficiency for degrading antibiotic compounds in water under light irradiation, with the heterojunction preventing electron-hole recombination and enhancing photocatalytic performance.
Natural sunlight-driven photocatalytic degradation of polypropylene microplastics over ZnO nanorods
Scientists developed a zinc oxide photocatalyst that, when exposed to natural sunlight, broke down polypropylene microplastics five times faster than natural degradation alone. The technology uses sunlight to trigger chemical reactions that oxidize and degrade the plastic particles. This approach represents a promising and sustainable method for cleaning up microplastic pollution in water, which could help reduce the amount of microplastics that eventually reach humans through the water supply.
Modified TiO2 and ZnO photocatalysts for microplastic degradation: mechanisms, challenges, and recent advances
This review examines recent advances in using modified titanium dioxide and zinc oxide photocatalysts to degrade microplastics in the environment. Researchers summarized the mechanisms by which these catalysts break down plastic particles when activated by light, as well as the challenges that remain for practical application. The study suggests that photocatalytic degradation is a promising approach for addressing microplastic pollution, though significant technical hurdles still need to be overcome.
Plastic Degrading Nanomaterials via Photocatalysis
This review examines photocatalytic degradation of plastics using nanomaterials including TiO2, ZnO, and their nanocomposites under UV and solar irradiation as an energy-efficient alternative to conventional plastic disposal methods. The paper covers reactive oxygen species-mediated breakdown of PP, PS, PVC, LDPE, and HDPE polymers and highlights nano-enabled strategies for microplastic and nanoplastic degradation.