期刊信息
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- 刊名: 河北师范大学学报(自然科学版)Journal of Hebei Normal University (Natural Science)
- 主办: 河北师范大学
- ISSN: 1000-5854
- CN: 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
纳米级SO42-/TiO2固体超强酸的催化活性研究
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1. 石家庄学院 化学系, 河北 石家庄 050035;
2. 河北师范大学 科技处, 河北 石家庄 050016;
3. 河北师范大学 化学与材料科学学院, 河北 石家庄 050016 -
DOI:
Study on Catalytic Activity of Nano-sized SO42-/TiO2 Solid Super Acid
摘要/Abstract
利用不同晶型、不同粒径的纳米TiO2制备了纳米级SO42-/TiO2固体超强酸,研究了硫酸浓度和焙烧温度对纳米级SO42-/TiO2固体超强酸催化活性的影响.反应的最佳条件是:使用锐钛型TiO2,用1.00mol/L硫酸浸泡,450℃焙烧.反应酯化率达到98.4%.
The nano-sized SO42-/TiO2 solid super acid was prepared by nano-titania of different crystal type and different size.The effect of sulphuric acid concentration and calcining temperature on catalytic activity of the nano-sized SO42-/TiO2 for esterification of acetic and n-butanol were studied.As a result,the optimum preparation conditions of the nano-sized SO42-/TiO2 solid super acid were:anatase nano-titania,1.00 mol/L of H2SO4 concentration and baking temperature at 450℃.Under such conditions,the conversion rate of acetic acid was 98.4% for the esterificational reaction of acetic acid and n-butanol.