Synthesis and Characterization of ZnO Nanoparticles - A Green Chemistry Approach

Abstract

Many green synthesis methods are used for synthesizing the nanoparticles in order not to harm humankind which makes use of it. Sunscreen is one of the vital products that play a vital role in human life nowadays. Sunscreens are generally prepared with titanium dioxide and zinc oxide nanoparticles due to their higher bandgap which helps to protect the skin from UVB and UVA rays respectively. These nanoparticles are chemically prepared as far as now in the case of sunscreen products. Titanium dioxide nanoparticle does not give full protection over the UV-A spectrum when compared to Zinc oxide nanoparticle. So, sunscreen manufacturers opt for ZnO nanoparticles to give better results. Our motivation is to prepare green synthesized ZnO nanoparticles to use in the preparation of transparent sunscreen. Here we use Aloe barbadensis leaf extract for the synthesis of ZnO nanoparticles.