A review of the gold nanoparticles' Synthesis and application in dye degradation

Abstract

In this review, we covered the recent advances in the synthesis of gold nanoparticles (AuNPs) and their uses in the degradation of dyes. This study provides a framework to develop a low-cost, eco-friendly, and highly efficient synthesis of AuNPs. From these synthesis methods, toxic by-products are not produced. The present study focuses on the removal of dyes by AuNPs because AuNPs act as suitable absorbents for dyes in a short time. Synthesis of AuNPs from plant extracts, e.g., marine alga, Scutellarin Barbata, Alpinia nigra, Fruit peels, Bacillus marisflavi from raw silk cocoons, amylopectin and poly acrylic acid, L. asparagine, Graphene oxide, LPEI coated AuNPs. The synthesized AuNPs were used further to remove dyes like methylene blue (MB), Rhodamine B (RB) degradation, methyl orange, acid red degradation, and Congo red.