Abstract
Nanoparticle-induced photocatalytic degradation of organic pollutant dyes is considered to be a low cost, environmentally friendly, and cost-effective approach. Also, integrating the photocatalytic degradation technique with that of the adsorption process has many more benefits in terms of effective dye removal. So, in that view, the present study deals with the comparative studies of photocatalytic degradation efficiency of semiconductor nanoparticles (like TiO2 and ZnO) with that of the natural adsorbents towards the removal of crystal violet dye. The changes in the dye removal against the applied parameters like adsorbent and catalyst dosage, pH, contact time, etc were studied.