文献类型：期刊文献

英文题名：Study on the synthesis and the catalytic properties of Fe-HMS materials in the hydroxylation of phenol

作者：Liu, Hong[1,2];Lu, Guanzhong[1];Guo, Yanglong[1];Guo, Yun[1];Wang, Junsong[1]

机构：[1]E China Univ Sci & Technol, Adv Mat Lab, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China;[2]Shanghai Univ, Coll Environm & Chem Engn, Shanghai 200072, Peoples R China

年份：2008

卷号：108

期号：1-3

起止页码：56

外文期刊名：MICROPOROUS AND MESOPOROUS MATERIALS

收录：;EI(收录号：20075010971108);WOS:【SCI-EXPANDED(收录号:WOS:000252529400007)】；

语种：英文

外文关键词：wormhole mesostructure materials; Fe-HMS; synthesis; properties; catalyst; hydroxylation of phenol

摘要：A series of Fe-HMS mesostructure materials were synthesized at ambient temperature using alkylamines as the structure director. The Fe-HMS materials were characterized by XRD, DRS UV-Vis, ICP-AES, TEM and N-2 adsorption. The effects of the synthesis conditions, such as the ratio of Fe/Si, chain length of surfactant, the surfactant/SiO2 ratio, synthesis time, usage of isopropyl alcohol, the H2O/SiO2 ratio and the ethanol/SiO2 ratio on the textural properties of the Fe-HMS materials were investigated. The results show that the incorporation of iron ions into the framework of HMS material is mainly tetrahedrally coordinated. After the synthesis solution was aged for 3 h Fe-HMS mesostructure has formed, and the pore structure of Fc-HMS materials is affected hardly by the synthesis time. The pore diameter of Fe-HMS can be modified by changing the chain length of surfactant and the ratios of Fe/Si, H2O/SiO2 and ethanol/SiO2 The presence of isopropyl alcohol in the synthesis gel helps to the successful synthesis of the Fe-HMS materials. The Fe-HMS mesostructure material is a highly efficient catalyst for the hydroxylation of phenol in the fixed-bed reactor. (c) 2007 Elsevier Inc. All rights reserved.