A review on photodegradation of various dyes using photocatalysts

Abstract

Photocatalytic degradation is a recent capable technique for reducing the effects of various dyes and pesticides. The response of the spectroscopic data at the ultraviolet range is 200-350nm; whereas, researchers have attempted to raise the spectral range to 350-800nm, which is a visible light range of the spectrum. Therefore, photodegradation of the effluents can happen efficiently in the visible light range of the spectrum using doped or undoped photocatalysts. Photocatalytic degradation of many dyes has been investigated in the earlier and present times based on many photocatalysts, which is reviewed in this paper. The effects have been examined using spectroscopic and analytical methods of modern technology.