Adsorption and Photocatalytic Decomposition of Toluene on TiO2 Surfaces

作者：Luo Yuan; Tai Wei Sheng; Seo Hyun Ook; Kim Kwang Dae; Kim Myoung Joo; Dey Nilay Kumar; Kim Young Dok^*; Choi Kang Ho; Lim Dong Chan

来源：Catalysis Letters, 2010, 138(1-2): 76-81.

DOI：10.1007/s10562-010-0369-1

• TiO2
• Toluene
• Photocatalysis

We studied the adsorption of toluene and its photodecomposition by TiO2 surfaces under UV irradiation using P-25 samples subjected to two different treatments. In order to shed light on the elementary steps of the photocatalytic decomposition of toluene, we employed X-ray photoelectron spectroscopy (XPS). A higher population of the surface OH-group of TiO2 increased the adsorption reactivity and initial rate of the photodecomposition of toluene. We also identified more efficient accumulation of toluene on the surface of TiO2 with high concentrations of OH-groups via XPS.

• 出版日期2010-8