Abstract
In contemporary times, the development of a cost-effective and sustainable platform for mitigating water pollutants is an ongoing challenge. Herein, Ananas comosus waste leaves mediated Au NPs have been synthesized after optimization of various reaction parameters and are found highly stable (for one year). The formation of Au NPs is confirmed by various characterization techniques i.e., UV–Visible spectrophotometer, FTIR, SAED, and HRTEM. UV–Vis spectrum displays the surface plasmon wavelength around 520 nm. HRTEM images show that the synthesized Au NPs are in narrow size distribution having size range between 20 and 30 nm with different shapes. Furthermore, they are employed as the effective catalyst, photocatalyst, and antimicrobial agents for the conversion reduction of 4-nitrophenol (20 min), methylene blue dye degradation (90 min), and Escherichia coli (inhibition zone 16 mm), and Bacillus subtilis (inhibition zone 13 mm) bacteria, respectively. Thus, this study offers a positive step in material research to prepare efficient photocatalyst, catalysts, and antimicrobial agents via a cost-effective and sustainable approach.
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