Photocatalytic hydrogenation of nitrobenzene to aniline over titanium(iv) oxide using various saccharides instead of hydrogen gas |
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| Authors: | Kazuya Imamura Kazuma Ikeuchi Yuki Sakamoto Yushiro Aono Takahiro Oto Ayumu Onda |
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| Affiliation: | Department of Chemistry and Biotechnology, Research Laboratory of Hydrothermal Chemistry, Faculty of Science and Technology, Kochi University, 2-5-1 Akebono-cho, Kochi 780-8520 Japan, |
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| Abstract: | Bare TiO2 photocatalyst almost quantitatively converted nitrobenzene to aniline with various saccharides without the use of hydrogen gas. Although aniline was formed when any saccharide was used, the use of disaccharides (lactose, maltose, and sucrose) decreased the reaction rate. The rate of photocatalytic hydrogenation of nitrobenzene using saccharides is determined by the degradation rate of saccharides at positive holes. When glucose was used, formic acid, arabinose, glyceraldehyde and lactic acid were obtained, which are products that are consistent with the product of the photocatalytic oxidation of glucose.10 kinds of saccharides were investigated as hydrogen source in photocatalytic hydrogenation of nitrobenzene to aniline. |
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