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Enhanced photocatalytic activity of porous cerium titanate using PEG4000 in sol gel route

LILI YANG1, DA CHEN1, JIAYING ZHANG1, ZHAO LV1, WENJIE ZHANG1,*

Affiliation

  1. School of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110159, China

Abstract

Polyethylene glycol was added in the sol gel precursor to prepare porous cerium titanate. The cerium titanate samples are composed of brannerite structured CeTi2O6 of monoclinic system and a small proportion of cubic CeO2. FT infrared and FT Far infrared spe ctra demonstrate the surface adsorbed water molecules and metal oxide bonds in the materials. The BET specific surface areas of the nonporous and porous cerium titanates are 1.7 and 16.2 m2/g, and the pore volume of these two samples are 0.0036 and 0.0232 cm3/g, respectively. The chemical shift of oxygen and titanium atoms in the porous cerium titanate is not found after using PEG4000. The first order reaction rate constant for photocatalytic degradation of ofloxacin on the nonporous sample is 1.340×10 2 min1, while it is as high as 6.852×10 2 min1 on the porous cerium titanate..

Keywords

Cerium Titanate Photocatalysis PEG4000, Ofloxacin Degradation.

Citation

LILI YANG, DA CHEN, JIAYING ZHANG, ZHAO LV, WENJIE ZHANG, Enhanced photocatalytic activity of porous cerium titanate using PEG4000 in sol gel route, Optoelectronics and Advanced Materials - Rapid Communications, 13, 9-10, September-October 2019, pp.555-559 (2019).

Submitted at: April 21, 2018

Accepted at: Oct. 9, 2019