4.4 Article

Kiwi Fruit Peel Biowaste Mediated Green Synthesis of Silver Nanoparticles for Enhanced Dye Degradation and Antibacterial Activity

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WASTE AND BIOMASS VALORIZATION
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SPRINGER
DOI: 10.1007/s12649-023-02328-9

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Kiwi biowaste; Silver nanoparticles; Green synthesis; Antibacterial; Pollutant degradation

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This study presents a technique for synthesizing silver nanoparticles using kiwi fruit peel waste and analyzes them using microscopy and spectroscopy. The synthesized AgNPs show excellent photocatalytic degradation and antibacterial activity under visible light irradiation.
The degradation of organic dye contaminants provides a promising approach for mitigating pollutants and addressing wastewater treatment. Despite the extensive research and development of various photocatalysts with the objective of effectively degrading organic pollutants, the challenge still persists. This paper introduces a facile and sustainable technique for synthesizing silver nanoparticles (AgNPs) using kiwi fruit peel, as a bio-waste resource. A comprehensive analysis of the AgNPs was conducted using microscopic and spectroscopic techniques. The observation of a color change and measurement of UV-vis absorbance at 435 nm confirmed the development of AgNPs. FE-SEM examination demonstrated that AgNPs have homogeneous distribution of cubic structure with 10 to 70 nm. The AgNPs demonstrated photocatalytic degradation potential of 94.2% for Congo red (CR) under visible light irradiation. Additionally, synthesized AgNPs exhibited concentration depended bactericidal activity. In conclusion, as synthesized AgNPs can efficiently purify wastewater and suppress pathogens due to their strong degrading activity, reusability, and antibacterial actions.

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