常州大学学报（自然科学版）2012，Vol.24Issue(3)：21-25,5.
稻壳二氧化硅负载铁催化剂对苯酚双氧水羟化反应的催化活性
Catalytic Activity of Iron-Rice Husks Silica Catalyst on Hydroxylation of Phenol with Hydrogen Peroxide
摘要
Abstract
White amorphous silica powder (RHS) was prepared by thermal decomposition of Rice Husk (RH). Iron silica catalysts (Fe3+/RHS) were prepared by means of a simple solvent dipping technique. The effects of reaction time, temperature and catalyst amount for hydroxylation of phenol with hydrogen peroxide were explored, and catalytic reaction was monitored by HPLC. The results suggested that the best reaction conditions found in this work to obtain high yield of catechol and hydroquinon were: catalyst amount was 30mg, reaction temperature was 65 — 70℃ and complete reaction time was 60min. When phenol dosage was 1.88g, molar ratio of phenol and H2O2 was 1, water volume was 10mL. Fe3+/RHS showed better catalytic activity on hydroxylation of phenol than that of others.关键词
稻壳/二氧化硅/负载铁催化剂/苯酚羟化反应Key words
rice husk/silica/supported iron catalyst/hydroxylation of phenol分类
化学化工引用本文复制引用
薄莹莹,李秋潼,许兴友,端木传嵩,陈智栋..稻壳二氧化硅负载铁催化剂对苯酚双氧水羟化反应的催化活性[J].常州大学学报（自然科学版）,2012,24(3):21-25,5.基金项目
江苏省科技厅支撑计划项目(BE2010357) （BE2010357）
