文献类型：期刊文献

英文题名：Sulfonic acid-functionalized mesoporous carbon/silica as efficient catalyst for dehydration of fructose into 5-hydroxymethylfurfural

作者：Tian, Xiaoning[1];Jiang, Zhongqing[1];Jiang, Yingying[1];Xu, Weitong[1];Li, Chenxu[1,2];Luo, Lijuan[1];Jiang, Zhong-Jie[3]

机构：[1]Ningbo Univ Technol, Dept Chem & Mat Engn, Ningbo 315211, Zhejiang, Peoples R China;[2]East China Univ Sci & Technol, Membrane Res Ctr, Chem Engn Res Inst, Shanghai 200237, Peoples R China;[3]South China Univ Technol, Coll Environm & Energy, New Energy Res Inst, Guangzhou 510006, Guangdong, Peoples R China

年份：2016

卷号：6

期号：103

起止页码：101526

外文期刊名：RSC ADVANCES

收录：;EI(收录号：20164502978804);WOS:【SCI-EXPANDED(收录号:WOS:000387427700100)】；

基金：This work was financially supported by the Chinese National Natural Science Foundation (No. 11474101, 21306091 and U1532139), the National Undergraduate Training Programs for Innovation and Entrepreneurship (No. 201511058006), the Zhejiang Provincial Natural Science Foundation (No. LY14B030001), the Zhejiang Provincial Public Welfare Technology Application Research Project (2015C31151), Wan weiming foundation (2016012), and the Guangdong Innovative and Entrepreneurial Research Team Program (No. 2014ZT05N200).

语种：英文

外文关键词：Scanning electron microscopy - Thermogravimetric analysis - X ray diffraction - Catalyst activity - Amorphous carbon - Dehydration - High resolution transmission electron microscopy - X ray photoelectron spectroscopy - Field emission microscopes - Fructose - Carbonization - Mesoporous materials - Pore size - Silica

摘要：Mesoporous silica with desired pore structure (the appropriate channel length and pore size) was synthesized through a modified soft template method. Amorphous carbon layers were then introduced in mesoporous silica channels through infiltration of carbon precursor and carbonization processes. Finally, sulfonic acid groups (-SO3H) attached onto the amorphous carbons by sulfonation reaction to form sulfonic acid-functionalized mesoporous carbon/silica which was used as a sulfonic acid catalyst. The morphology, pore structure, surface functional groups, and compositions of the obtained sulfonic acid-functionalized mesoporous carbon/silica were investigated by field-emission scanning electron microscopy (SEM), transmission electron microscopy (TEM), N-2 adsorption-desorption isotherm, X-ray photoelectron spectroscopy, thermogravimetric analysis and X-ray diffraction techniques. These materials are active for the catalytic dehydration of fructose into 5-hydroxymethylfurfural. The pore structure of hard template-mesoporous silica, and homogeneous coating of amorphous carbon layers are found to be critical to obtain sulfonic acid-functionalized mesoporous carbon/silica with enhanced catalytic activity. The sulfonic acid-functionalized mesoporous carbon/silica synthesized in the desired way could exhibit a high yield of 5-HMF and good recyclability, making them highly applicable in practical applications.