Synthesis and Characterization of Se-Zno Photocatalyst with Improved Photodegradation and Antibacterial Properties
Sonde, O. I1,2*, Oloyede, A. R4, Oladoyinbo, F. O1, Sanyaolu, N. O5, Ibikunle, A. A5, Afolabi, T. A1, Arotiba, O. A2,3, Dare, E. O1
Affiliation
1 Department of Chemistry, Federal University of Agriculture Abeokuta, Ogun State, Nigeria
2 Department of Applied Chemistry, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, South Africa
3 Centre for Nanomaterials Science Research, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, South Africa
4 Biotechnology Centre, Federal University of Agriculture Abeokuta, Ogun State, Nigeria
5 Department of Chemical Sciences, Olabisi Onabanjo University, Ago-iwoye, Ogun State
Corresponding Author
Sonde, O. I, Department of Chemistry, Federal University of Agriculture Abeokuta, Ogun State, Nigeria, Department of Applied Chemistry, University of Johannesburg, P.O. Box 17011,Doornfontein 2028, South Africa, E-mail: sonde.idowu@gmail.com
Citation
Sonde,O.I., et al. Synthesis and Characterization of Se-Zno Photocatalyst with Improved Photodegradation and Antibacterial Properties. (2018) J Nanotechnol Material Sci 5(1): 30-34.
Copy rights
© 2018 Sonde, O.I. This is an Open access article distributed under the terms of Creative Commons Attribution 4.0 International License.
Keywords
Abstract
The removal of toxic organic pollutant from wastewater is an interested area in pollution control. Among organic pollutants are dyes such as methylene blue and orange II that originates from sources such as textile industrial processes. Zinc oxide based photocatalyst has emerged as one of the most fascinating materials in the modern era due to its semiconducting and catalytic properties. Se-ZnO photocatalyst was prepared using reduction process. The synthesized Se-ZnO nanocomposite was confirmed by XRD, SEM, EDS and TEM analysis. The photocatalytic degradation assessment of Se-ZnO nanocomposite was investigated by the kinetics of degradation of methylene blue and orange II dyes using simulated solar light. The photocatalytic degradation was monitored with UV spectroscopy at time interval. Antibacterial activities of the synthesized nanocomposites were also investigated on some pathogens: Escherichia coli, Klebsiella pneumonia, Enterobacter cloacae and Pseudomonas aeruginosa using agar well diffusion method. SEM image of Se- ZnO nanocomposite gives a very clear flower-like morphology. TEM image of Se-ZnO nanocomposite showed a more conspicuous pearl-bead-necklace structure. 86% and 25% degradation of methylene blue and orange II dye was achieved respectively within 180 minutes of irradiation. A good inhibition was observed for the growth of E. coli and E.cloacae.