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Photocatalytic Reduction of Nitrobenzene by Titanium Dioxide Powder
Author(s) -
Chen Shifu,
Zhang Huaye,
Yu Xiaoling,
Liu Wei
Publication year - 2010
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201090030
Subject(s) - nitrobenzene , photocatalysis , chemistry , aniline , titanium dioxide , catalysis , scavenger , methanol , solvent , inorganic chemistry , nuclear chemistry , photochemistry , organic chemistry , chemical engineering , radical , engineering
The feasibility of photocatalytic reduction of nitrobenzene using titanium dioxide powder as photocatalyst, under the protection of nitrogen and presence of hole scavenger conditions, was studied. Effects of the illumination time, amount of catalyst and sorts of solvent on the photocatalytic reduction of nitrobenzene were investigated, respectively. The results showed that, for the photocatalytic reduction of nitrobenzene, aniline was the main product. When the illumination time was 6 h, 8.15×10 −4 mol/L of nitrobenzene could be photocatalytically reduced completely, with the yield of aniline being 88.5%. The optimum amount of TiO 2 used was 4.0 g/L, the optimum initial pH value of reaction solution was 4.0 and the best solvent was methanol. The kinetics and mechanisms of the photocatalytic reduction of nitrobenzene were also discussed.