Preparation and catalytic properties of RuSalen-functionalized periodic mesoporous silicas

被引：10
|
作者：
Shi, Xiufeng [1 ]
Fan, Binbin [1 ]
Li, Hongyu [1 ]
Li, Ruifeng [1 ]
Fan, Weibin [2 ]
机构：
[1] Taiyuan Univ Technol, Inst Special Chem, Taiyuan 030024, Peoples R China
[2] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2014年 / 196卷
基金：
美国国家科学基金会;
关键词：
PMOs; RuSalen; Cyclohexene; Oxidation; Functionalization; MOLECULAR-SCALE PERIODICITY; SCHIFF-BASE COMPLEXES; BENZENE-SILICA; ORGANOSILICAS; OXIDATION; WALLS; HYBRIDS; PHENOL; SBA-15; H2O2;
D O I：
10.1016/j.micromeso.2014.05.022
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A new approach was employed to prepare metal complex-functionalized periodic mesoporous silica. This approach mainly involves the following three steps, that is, chloromethylation of -C6H4- sites in the framework of PMOs into active -C6H3CH2Cl-, amination of PMOs via reacting -C6H3CH2Cl- with piperazine and covalent attachment of RuSalen by refluxing the aminated PMOs in RuSalen ethanol solution. The obtained hybrid material was characterized with XRD, N-2 sorption, FTIR, diffuse reflectance UV-vis spectroscopy, TEM and C-13 MAS NMR techniques. It shows higher activity and stability in the oxidation of cyclohexene with H2O2 than the corresponding RuSalen functionalized SBA-15 prepared by the similar method except that the introduction of active -C3H6Cl was achieved by grafting 3-chloropropyltriethoxy-silane on SBA-15. (C) 2014 Elsevier Inc. All rights reserved.
引用
收藏
页码：277 / 283
页数：7
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