Effective method for preparation of surface NH2-functionalized SBA-15 mesoporous silica

被引：0

作者：

Li, Junhua ^{[1
]}

Zhang, Dan ^{[1
]}

Zhang, Qijian ^{[1
]}

机构：

[1] Liaoning Univ Technol, Sch Chem & Environm Engn, Jinzhou 121001, Peoples R China

来源：

ADVANCED IN NANOSCIENCE AND TECHNOLOGY | 2012年 / 465卷

关键词：

mesoporous silica; SBA-15; surface functional; amino; BASE CATALYSTS;

D O I：

10.4028/www.scientific.net/AMR.465.204

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Surface NH2-functionalized SBA-15 mesoporous silica was synthesized using toluene diisocyanate (TDI) as bridge molecule. Firstly, surface Si-OH of SBA-15 reacted with one -NCO group of TDI molecular. Then, another unreacted -NCO group of TDI molecular reacted with one -NH2 group of ethylenediamine (EDA). Finally, NH2- group was successfully grafted on mesoporous SBA-15 surface by the above two step method. XRD, N-2 adsorption/desorption analysis, FTIR and Si-29 MAS NMR were used to identify the well-ordered structure and the successful incorporation of -NH2 on the surface of the synthesized materials. Characterizations revealed that such -NH2 graft is an effective method to obtain a high loading of amino on SBA -15.

引用

页码：204 / 209

页数：6

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