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Ti-modified Mesoporous Molecular Sieves Containing both Selective Oxidation and Photocatalysis Centers |
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| Authors: | GUO Zong-ying HE Jing David GEvans DUAN Xue ZHU Yue-xiang XIAO Tian-cun |
| Institution: | 1. The Key Laboratory of Science and Technology of Controllable Chemical Reactions of Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, P. R. China; 2. State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China; 3. Inorganic Chemistry Laboratory, Oxford University, OX1 3QR, UK |
| Abstract: | Mesoporous molecular sieves possessing high mesopore volumes and large specific surface areas were prepared and characterized by means of XRD, low temperature N2 adsorption-desorption measurements,FT IR, Raman, UV-visible diffuse reflectance and XPS spectroscopy. The materials contain both framework and extra-framework Ti centers which exhibit selective oxidation catalytic activity and photocatalytic activity respectively. The catalysis of selective oxidation was studied with the hydroxylation of benzene with hydrogen peroxide and photochemical activity was studied by the yields of · OH and H2O2, respectively. |
| Keywords: | Ti-modified mesoporous materials Framework sites Non-framework sites Selective oxidation Photocatalysis |
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