Journal
CHINESE JOURNAL OF CATALYSIS
Volume 37, Issue 11, Pages 1975-1981Publisher
SCIENCE PRESS
DOI: 10.1016/S1872-2067(16)62519-6
Keywords
Glycerol oxidation; Titanium dioxide; Photocatalyst; Electron acceptor
Funding
- Chulalongkorn University Dutsadi Phiphat Scholarship
- Ratchadapisek Sompoch Endowment Fund [Sci-Super II GF_58_08_23_01]
- Thailand Research Fund [IRG5780001]
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The effect of the electron acceptors H2O2 and O-2 on the type of generated reactive oxygen species (ROS), and glycerol conversion and product distribution in the TiO2-catalyzed photocatalytic oxidation of glycerol was studied at ambient conditions. In the absence of an electron acceptor, only HO center dot radicals were generated by irradiated UV light and TiO2. However, in the presence of the two electron acceptors, both HO center dot radical and O-1(2) were produced by irradiated UV light and TiO2 in different concentrations that depended on the concentration of the electron acceptor. The use of H2O2 as an electron acceptor enhanced glycerol conversion more than O-2. The type of generated value-added compounds depended on the concentration of the generated ROS. (C) 2016, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
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