Articles | Volume 10, issue 2
Research article
16 Nov 2017
Research article |  | 16 Nov 2017

Photocatalytic degradation of dyes in water by analytical reagent grades ZnO, TiO2 and SnO2: a comparative study

Dnyaneshwar R. Shinde, Popat S. Tambade, Manohar G. Chaskar, and Kisan M. Gadave

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Cited articles

Abo, R., Kummer, N.-A., and Merkel, B. J.: Optimized photodegradation of Bisphenol A in water using ZnO, TiO2 and SnO2 photocatalysts under UV radiation as a decontamination procedure, Drink. Water Eng. Sci., 9, 27–35,, 2016.
Akpan, U. G. and Hameed, B. H.: Parameters affecting the photocatalytic degradation of dyes using TiO2based photocatalysts: A review, J. Hazard. Mater., 170, 520–529, 2009.
Anand, M., Shim, H.-S., Kim, Y. S., and Kim, W. B.: Structural and Optical Properties of Co- and Ti-ZnO Composite Nanofibers Prepared by Using an Electrospinning Method, J. Korean Phys. Soc., 53, 2423–2426, 2008.
Chen, D. and Ray, A. K.: Removal of toxic metal ions from wastewater by semiconductor photocatalysis, Chem. Eng. Sci., 56, 1561–1570, 2001.
Cheng, G., Chen, J., Ke, H., Shang, J., and Chu, R.: Synthesis, characterization and photocatalysis of SnO2nanorods with large aspect ratios, Mater. Lett., 65, 3327–3329, 2011.
Short summary
With photocatalytic activity of commercially available photocatalysts, viz. ZnO, TiO2 and SnO2, a set of photocatalytic experiments was performed under similar conditions using crystal violet, basic blue and methyl red dyes in water. The comparison of photocatalytic activity of ZnO with the benchmark Degussa P-25 (TiO2) catalyst as well as with AR grade TiO2 and SnO2 showed that despite low specific surface areas and larger grain sizes, ZnO displayed higher activity in the degradation of dyes.