Photocatalytic Degradation of 4-chlorophenol by CuMoO4-doped TiO2 Nanoparticles Synthesized by Chemical Route

Tanmay K Ghorai
2011 Open Journal of Physical Chemistry  
The photocatalytic degradation of 4-chlorophenol (4-CP) in aqueous solution was studied using CuMoO 4doped TiO 2 nanoparticles under Visible light radiation. The photocatalysts were synthesized by chemical route from TiO 2 with different concentration of CuMoO 4 (Cu x Mo x Ti 1 − x O 6 ; where, x values ranged from 0.05 to 0.5). The prepared nanoparticles are characterized by XRD, BET surface area, TEM, UV-vis diffuse reflectance spectra, Raman spectroscopy, XPS and EDAX spectroscopy were used
more » ... troscopy were used to investigate the nanoparticles structure, size distribution, and qualitative elemental analysis of the composition. The Cu x Mo x Ti 1 − x O 6 (x = 0.05) showed high activity for degradation of 4-CP under visible light. The surface area of the catalyst was found to be 101 m 2 /g. The photodegradation process was optimized by using Cu x Mo x Ti 1 − x O 6 (x = 0.05) catalyst at a concentration level of 1 g/l. A maximum photocatalytic efficiency of 96.9% was reached at pH = 9 after irradiation for 3 hours. Parameters affecting the photocatalytic process such as catalyst loading, concentration of the catalyst and the dopant concentration, solution pH, and concentration of 4-CP have been investigated.
doi:10.4236/ojpc.2011.12005 fatcat:rfuohew7fnhb5dscf4ge5thrmm