Title: Preparation Conditions on Adsorption and Photocatalytic Activity of TiO<sub>2</sub> Particles Prepared by Sol-Gel Method
Abstract: The amounts of ethanol, HCl and H 2 O, and also calcination conditions during sol-gel process of preparing TiO 2 photocatalyst were investigated. Methyl orange adsorption on TiO 2 prepared using different sol compositions is not more than 4% by varying the amount of ethanol, HCl and H 2 O. The photocatalytic degradation is related to sol composition, and the optimal composition is composed of 10 ml ethanol, 1.0 ml H 2 O, and 0.1 ml HCl. Calcination temperature and time are also important in TiO 2 preparation. The TiO 2 particle prepared at 500 °C for 3 h has the optimal photocatalytic activity. In the irradiation time range up to 100 min, photocatalytic degradation rate constantly increases up to 94.2%.
Publication Year: 2011
Publication Date: 2011-05-01
Language: en
Type: article
Indexed In: ['crossref']
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