Green Synthesis of Various Metal Oxides Nanoparticles and their Application to Photocatalytic Degradation of Azo Dyes

Abstract

Nanoparticles are very fine particles ranging from 10-100nm in diameter. They got attention due to their unique properties from bulk material to its fine particles. Nanomaterials have enormous applications in various fields which includes medicine, material and processes, energy and electronic etc. Various methodologies are adopted for the synthesis of nanomaterial but biosynthesis procedure is less toxic, environmentally benign and cost effective. In the present research work CuO, CoO, SrO and ZnO nanoparticles were synthesized by using Calotropis gagintea leaves plant extract. The prepared nanomaterials have been characterized by using various techniques like EDS, SEM, XRD and FTIR. The photo-catalytic degradation efficiency of prepared nanoparticles have been tested on Amaranth red azo dyes. It is concluded that Znic oxide show maximum efficiency towards photo-catalytic degradation. The effect of Znic oxide nanomaterial dose and pH effect on degradation was also tested. It is observed that maximum degradation efficiency have been taken place at acidic pH by using 0.6g of Znic oxid nanomaterial dose.