氧化剂
催化作用
过氧化氢
苯胺
选择性
化学
钛
无机化学
产量(工程)
氧化钛
锐钛矿
氧化物
多相催化
溶剂
金红石
过氧化物
核化学
有机化学
材料科学
光催化
冶金
作者
Harikrishna Tumma,N. Nagaraju,K. Vijaya Kumar Reddy
标识
DOI:10.1016/j.apcata.2008.10.046
摘要
The titanium (IV) oxide is used as the catalyst in the heterogeneous liquid phase reaction for the oxidation of aniline and substituted anilines using dilute hydrogen peroxide as an oxidizing agent with different solvent conditions. Titanium (IV) oxide samples have been prepared under different experimental conditions by the sol–gel method. Experimental data showed that anatase form was an efficient catalyst for the title reaction and exhibited excellent selectivity (100%) and good yield (>90%) for the oxidation of aniline and substituted anilines, whereas the rutile form was found to be totally inactive. A high percentage of selectivity and good yields were achieved under mild reaction conditions. The recovered catalyst was used several times for the oxidation reaction with virtually no loss of activity. Overall a good catalytic activity and structure relationship was observed.
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