[1]薄莹莹,李秋潼,许兴友,等.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,(03):21-25.
　BO Ying-ying,LI Qiu-tong,XU Xing-you,et al.Catalytic Activity of Iron-Rice Husks Silica Catalyst on Hydroxylation of Phenol with Hydrogen Peroxide[J].Journal of Changzhou University(Natural Science Edition),2012,(03):21-25.
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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()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2012年03期
页码:
21-25
栏目:
出版日期:
2012-06-01

文章信息/Info

Title:
Catalytic Activity of Iron-Rice Husks Silica Catalyst on Hydroxylation of Phenol with Hydrogen Peroxide
作者:
薄莹莹1; 李秋潼1; 许兴友2; 端木传嵩2; 陈智栋1
1.常州大学 石油化工学院,江苏 常州 213164; 2.淮阴工学院,江苏 淮安 223003
Author(s):
BO Ying-ying1; LI Qiu-tong1; XU Xing-you2; DUANMU Chuan-song2; CHEN Zhi-dong1
1.School of Petrochemical Engineering,Changzhou University,Changzhou 213164,China; 2.Huaiyin Institute of Technology,Huai'an 223003,China
关键词:
稻壳;  二氧化硅;  负载铁催化剂;  苯酚羟化反应
Keywords:
rice husk;  silica;  supported iron catalyst;  hydroxylationof phenol
分类号:
O 69
文献标志码:
A
摘要:
利用稻壳热解法制备出无定形二氧化硅(Rice Husks Silica,RHS),以其为载体,通过浸渍法制得负载铁催化剂Fe3+/RHS,并将该催化剂用于催化苯酚双氧水直接羟基化反应。研究了催化剂的具体制备条件,反应时间、反应温度和催化剂用量对催化反应效果的影响。HPLC对苯酚双氧水羟基化反应的结果进行监测。结果表明:当m(苯酚)=1.88 g,n(苯酚):n(H2O2)=1:1,溶剂为10 mL水时,催化剂(Fe3+/RHS)最佳用量为30 mg,反应最佳温度为65-70 ℃,反应结束时间为60 min。在相同反应条件下,该负载铁催化剂对苯酚羟化反应的催化效果优于其他几种催化剂。
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 reactiontime, temperature and catalyst amount for hydroxylation of phenol with hydrogenperoxide were explored, and catalytic reaction was monitored by HPLC. The results suggested that the best reaction conditions found in this work to obtain highyield of catechol and hydroquinon were:catalyst amount was 30 mg, reaction temperature was 65-70 ℃ and complete reaction time was 60 min.When phenol dosage was 1.88 g, molar ratio of phenol and H2O2 was 1,water volume was 10 mL. Fe3+/RHS showed better catalytic activityon hydroxylation of phenol than that of others.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目:江苏省科技厅支撑计划项目(BE2010357) 作者简介:薄莹莹(1986-),女,江苏连云港人,硕士生; 通讯联系人:陈智栋。
更新日期/Last Update: 2012-06-30