Photocatalytic characteristics of TiO2 supported on SiO2

Photocatalytic characteristics of TiO2 supported on SiO2 The photocatalytic decomposition of acetaldehyde was carried out on TiO2/SiO2. The presence of a support (SiO2) in TiO2/SiO2 helped to promote the efficiency of the photocatalyst. The silica support enhanced the effective surface area of TiO2 and adsorption of acetaldehyde on TiO2/SiO2. TiO2/SiO2 synthesized from Ti(SO4)2 showed promoting effect on acetaldehyde decomposition. The XPS results revealed that TiO2/SiO2 prepared with Ti(SO4)2 generated SO 4 2− sites on the TiO2 surface. The increased acidity could promote the adsorption of acetaldehyde and photocatalytic degradation of acetaldehyde. The sulfate ion seemed to generate the bifunctional sites (acid sites and photoactive sites) and promoted the acetaldehyde decomposition on TiO2/SiO2. Research on Chemical Intermediates Springer Journals

Photocatalytic characteristics of TiO2 supported on SiO2

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Springer Netherlands
Copyright © 2003 by Springer
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
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