摘要
采用后接枝法将氨丙基三乙氧基硅烷接枝到二氧化硅网络中,合成了氨丙基功能化的MCM-41介孔硅。FTIR结果显示,氨基被共价键键合到了介孔硅基体上。实验结果表明,所制备的功能化材料可以选择性吸附水溶液中的Pb2+,最大吸附量为193 mg.g-1。
3-Aminopropyltriethoxysilane was introduced into the network of silica through post-grafting and amino-functionalized MCM-41 mesoporous silica was obtained. FTIR characterization revealed that amino had been covalently bonded onto the surface of mesoporous silica. Experimental results showed that the as-synthe- sized functionalized material could selectively adsorb Pb2 ＋ from aqueous solution. The maximal adsorption capac- ity of Pb2 ＋ for amino-functionalized mesopomus silica was 193mg@ g- 1.
出处
《化工技术与开发》
CAS
2009年第8期1-3,共3页
Technology & Development of Chemical Industry
基金
桂林电子科技大学自然科学基金资助(Z20313和UF08013Y)
关键词
介孔硅
氨基功能化
选择性吸附
mesoporous silica
amino-functionalization
selective ad^rption
作者简介
作者简介：肖文香（1976-），女，博士，主要从事分析化学和环境科学方面的研究
