article · Catalysis Communications
A green synthesis route using Hyphaene thebaica fruit extracts produces tungsten trioxide nanoflakes for environmental water remediation. The resulting nanomaterial demonstrates high photocatalytic activity under visible light, successfully degrading both cationic and anionic dye pollutants. In laboratory evaluations, the nanoflakes achieved removal efficiencies exceeding 98 percent for Methylene Blue and 93 percent for Congo Red within short durations. Reactive species trapping experiments reveal that hydroxyl radicals, hydrogen peroxide, and photogenerated holes primarily drive the photodegradation process. Additionally, stability and reusability assessments confirm that the nanoflakes retain their functional performance over repeated cycles. These findings point to an effective, plant-assisted approach for fabricating stable photocatalysts suited for treating contaminated wastewater streams.
Industrial dye contamination poses persistent risks to clean water supplies and aquatic environments. Fabricating treatment materials through green chemistry reduces reliance on hazardous synthesis chemicals. Because these nanoflakes degrade both cationic and anionic dyes rapidly under visible light and remain reusable, the approach supports more sustainable and cost-effective methods for treating industrial effluents.
This technology is relevant to wastewater treatment operators and industrial dye manufacturers seeking sustainable effluent remediation solutions. Currently at an applied laboratory stage, the nanoflakes have demonstrated degradation efficiency and reusability on model dye solutions. Advancing toward commercial use would require pilot-scale validation, cost analysis of the plant-extract synthesis route, and trials on complex, real-world industrial wastewater.
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This study introduces a novel green synthesis method using Hyphaene Thebaica fruit extracts to produce WO3 nanoflakes. The synthesized material exhibits remarkable visible light photocatalytic efficiency in degrading Methylene Blue (MB) and Congo Red (CR) pollutants. With removal efficiencies exceeding 98% for MB and 93% for CR within short durations, the WO3 nanoflakes show promise for water treatment. Trapping experiments suggest that hydroxyl radicals, hydrogen peroxide, and holes are the primary reactive species involved in the photodegradation process. Additionally, the recyclability study demonstrates the stability and reusability of WO3 nanoflakes, further highlighting their potential for practical applications in wastewater treatment.
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DOI: 10.1016/j.catcom.2024.106851
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