GREEN SYNTHESIS OF SILVER NANOPARTICLES USING GRAPE POMACE WASTE FOR THE DEGRADATION OF PHARMACEUTICALS DRUGS AND ORGANIC DYES

Abstract

The green synthesis of metallic nanoparticles paved the way to improve and protect the environment bydecreasing the use of toxic chemicals. A simple and eco-friendly method for silver nanoparticles (AgNPs) synthesis employing the aqueous extract obtained from grape pomace by plasma-chemical extraction technique was developed. The reduction of silver ions in solution was monitored using UV–visible absorption spectroscopy. The synthesised nanoparticles were characterised using scaning electron microscopy (SEM) and dynamic light scattering measurement (DLS). The sizes of the spherical silver particles were found to be in the range of 27–33 nm. The effect of silver ions concentrations on the synthesis of silver nanoparticles and average particle size was investigated. As-prepared Ag NPs had an excellent catalytic activity as a catalyst for the degradation of ibuprofen, which was carried out in 50 s. The current findings are equally extendable for safeguarding the aquatic environment against the pollution caused by drugs and microbial activity via a facile, highly economical, rapid and efficient reduction/degradation method based on the catalytic potential of Ag NPs. The report emphasizes the effect of the size of silver nanoparticles on the degradation rate of hazardous dyes - methyl blue by NaBH4..