Acta Scientific Pharmaceutical Sciences (ASPS)(ISSN: 2581-5423)

Research Article Volume 4 Issue 5

A Comparative Study on Photocatalytic Activity of ZnO, ZnS and ZnO-ZnS Composite

Basant Kumar Menariya*

Department of Chemistry, PAHER University, Udaipur, Rajasthan, India

*Corresponding Author: Basant Kumar Menariya, Department of Chemistry, PAHER University, Udaipur, Rajasthan, India.

Received: March 09, 2020; Published: April 08, 2020



  A comparative study was made on photocatalytic activity of ZnO, ZnS and their composite. A simple mechanochemical method was used for preparation of composite. The photocatalytic efficiency of ZnO-ZnS composite was compared with pure ZnO and ZnS. The effect of various parameters such as pH, dye concentration, semiconductor amount and light intensity was observed. The optimum conditions for this degradation were obtained as: Rose Bengal = 7.0 × 10-6M, pH = 7.5, amount of composite = 0.08g and light intensity = 60.0 mWcm-2. It was found that coupled chalcogenide ZnO-ZnS show better photocatalytic activity as compared with ZnO and ZnS alone for the degradation of rose Bengal in the presence of visible light.

Keywords:ZnO; ZnS; Composite; Photocatalytic Activity; Rose Bengal



  1. Sin JC., et al. “Degrading Endocrine disrupting chemicals from wastewater by photocatalysis: A review”. International Journal of Photoenergy (2012): 185159.
  2. Nakata K and Fujishima A. “TiO2 photocatalysis: Design and applications”. Journal of Photochemistry and Photobiology C: Photochemistry Review3 (2012): 169-189.
  3. Vilar VJ., et al. “Solar photocatalysis of a recalcitrant coloured effluent from a wastewater treatment plant”. Photochemical and Photobiological Sciences5 (2009): 691-698.
  4. Fujishima A., et al. “Photosensitized electrolytic oxidation on semiconducting n-type TiO2 electrode”. The Journal of the Society of Chemical Industry, Japan 72 (1969): 108-113.
  5. Xie H., et al. “Photodegradation of benzene by TiO2 nanoparticles prepared by flame CVD process”. Particuology 1 (2011): 75-79.
  6. Ameta A., et al. “Photocatalytic degradation of methylene blue by nanosized vanadium doped TiO2 loaded on zeolite”. International Journal of Chemical Sciences3 (2015): 1485-1494.
  7. Haritha E., et al. “Green chemical approach towards the synthesis of SnO2 NPs in argument with photocatalytic degradation of diazo dye and its kinetic studies”. Journal of Photochemistry and Photobiology B: Biology 162 (2016): 441-447.
  8. Goharshadi E., et al. “Photocatalytic degradation of reactive black 5 azo dye by zinc sulfide quantum dots prepared by a sonochemical method”. Materials Science in Semiconductor Processing 4 (2013): 1109-1116.
  9. Wang X., et al. “Large-scale synthesis well-dispersed ZnS microspheres and their photoluminescence, photocatalysis properties”. Material Characterization12 (2008): 1765-1770.
  10. Chen F., et al. “Facile synthesis of ZnS nanoparticles and their excellent photocatalytic performance”. Ceramics International 5A (2015): 6645-6652.
  11. Chankhanittha T and Nanan S. “Hydrothermal synthesis, characterization and enhanced photocatalytic performance of ZnO toward degradation of organic azo dye”. Material Letters 226 (2018): 79-82.
  12. Raheem RA., et al. “Photocatalytic degradation of reactive green dye by using zinc oxide”. Journal of Chemical and Pharmaceutical Sciences3 (2016): 1134-1138.
  13. Shi JW., et al. “Low-temperature synthesis of CdS/TiO2 composite photocatalysts: Influence of synthetic procedure on photocatalytic activity under visible light”. Journal of Molecular Catalysis A: Chemical 356 (2012): 53-60.
  14. Kostova N and Dutkova E. “Mechanochemical synthesis and properties of ZnS/TiO2 composites”. Bulgarian Chemical Communications 48 (2016): 161–166.
  15. Upadhyay R., et al. “Photocatalytic degradation of azure B using Copper Hexacyanoferrate (II) as semiconductor”. International Journal of Chemical Sciences1 (2013): 331-340.
  16. Parveen K and Vyas K. “Photocatalytic degradation of Rose Bengal by Ni-doped titanium dioxide”. Acta Chimica and Pharmaceutica Indica4 (2016): 135-143.
  17. Sharma S., et al. “Use of semi-conducting bismuth sulfide as a photocatalyst for degradation of rose Bengal”. Macedonian Journal of Chemistry and Chemical Engineering2 (2011): 229-234.


Citation: Basant Kumar Menariya. “A Comparative Study on Photocatalytic Activity of ZnO, ZnS and ZnO-ZnS Composite". Acta Scientific Pharmaceutical Sciences 4.5 (2020): 05-10.


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