Effect of TiO2/MgO Nanocomposites on the Photocatalytic Activity Towards Removal of Organic Dyes
TiO2/MgO nanocomposites were prepared and was characterised by TEM. The TEM analysis showed that the photocatalyst was of nano size. The electron hole pair recombination found by using TiO2 nanoparticles alone can be minimized by using the TiO2/MgO nanocomposite and can enhance the degradation efficiency of the photocatalyst in the degradation process. The nanocomposite was found to completely degrade the organic azo dye. The photocatalytic degradation process was undergone in a photocatalytic reactor with UV light irradiation. Degradation of the dye solution were analysed by FTIR analysis. The frequencies at which there are the absorptions of the IR radiation in the FTIR spectrum can be related to the bonds in the compound. Therefore, FTIR spectrum can be used as a confirmation for degradation of the organic dye.
KeywordsTiO2/MgO nanocomposite Photocatalytic degradation Organic dye FTIR analysis
- Dhanavel, S., Nivethaa, E.A.K., Narayanan, V., Stephen, A.: Photocatalytic activity of Chitosan/ZnO nanocomposites for degrading methylene blue. Int. J. ChemTech Res. 6, 1880–1882 (2014)Google Scholar
- Gao, D.Z., Watkins, M.B., Shluger, A.L.: Transient mobility mechanism of deposited metal atoms on insulating surfaces: Pd on MgO. J. Phys. Chem. 116, 14471–14479 (2012)Google Scholar
- Lezner, M., Grabowska, E., Zaleska, A.: Preparation and photocatalytic activity of iron modified titanium dioxide photocatalyst. Physicochemical Probl. Miner. Process. 48, 193–200 (2012)Google Scholar
- Wahab, R., Ansari, S.G., Dar, M.A., Kim, Y.S., Shin, H.S.: Synthesis of magnesium oxide nanoparticles by sol-gel process. Mater. Sci. Forum 558–559, 983–986 (2007)Google Scholar