静电纺丝制备二氧化硅纳米纤维的形貌控制  

Morphology Control of Mesoporous Silica Nanofibers via Electrospining

作　　者：姜男哲[1] 柳海兰[1] 李成斌[1] 孟万[1] 

机构地区：[1]延边大学工学院,延吉133002

出　　处：《材料导报（纳米与新材料专辑）》2013年第1期1-3,共3页

基　　金：国家自然科学基金(59637050);吉林省教育厅项目(2012-7)

摘　　要：使用溶胶-凝胶和静电纺丝相结合的方式制备二氧化硅纳米纤维,采用PVP/乙醇溶液作为实验用剂,通过调整结构导向剂P123的量来探究其对所得多孔纳米纤维形貌的影响。利用电子扫描显微镜(SEM)、电子透射显微镜(TEM)以及氮气吸附-脱附对得到的多孔纤维进行表征。结果显示,结构导向剂P123的使用量是影响二氧化硅纳米纤维的比表面积的主要因素,但是对孔径分布没有影响。Silica nanofibers were prepared by electrospinning and sol-gel methods of ethanol solution of the sili- ca sol, PVP polymer and P123. The structure directing role of P123 was investigated by varying the amounts of P123 employed in the synthetic precursor. The morphology and porous structure of the silica nanofibers was characterized by SEM, TEM and N2 adsorption-desorption isotherms. It was found that the amount of P123 employed could influe- nce the specific surface area of the silica nanofibers significantly, while no effect onto the pore size distribution.

关 键 词：静电纺丝 二氧化硅纳米纤维 形貌控制 

分 类 号：TQ174[化学工程—陶瓷工业]