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.

纳米粒子诱导的有机污染物染料的光催化降解被认为是一种低成本，环保且具有成本效益的方法。同样，将光催化降解技术与吸附工艺相结合在有效去除染料方面具有更多优势。因此，以这种观点，本研究涉及半导体纳米颗粒（如TiO ₂和ZnO）与天然吸附剂在去除结晶紫染料方面的光催化降解效率的比较研究。研究了染料去除率随所应用参数（如吸附剂和催化剂用量，pH，接触时间等）的变化。