水玻璃常压制备多孔材料  

Ambient pressure synthesize silica porous materials with waterglass

作　　者：何方[1] 赵海雷[1] 张秀华[1] 仇卫华[1] 吴卫江[1] 曲选辉[1] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083

出　　处：《功能材料》2005年第7期1083-1085,1089,共4页Journal of Functional Materials

摘　　要：以水玻璃为硅源,在酸性条件下,通过溶胶凝胶的方法,经去离子水洗去钠离子,然后溶剂交换,用三甲基氯硅烷进行表面修饰,在常压下干燥,制备成20～50nm孔径的介孔材料.This paper synthesize 20-50 nm SiO2 mesopores materials by sol-gel methods at ambient pressure. Water glass was used as silicon source for it low price. Sulfur acid used as catalyzer, after sol-gel and aging, sodium ion can be washed by the deioned water, the next is solvent exchange with low surface tension solvent, such as hexane. And then surface modification can be finished by trimethylchlorosilane and drying at atmospheric pressure.

关 键 词：表面修饰 水玻璃 常压干燥 

分 类 号：TQ134.11[化学工程—无机化工]