人工晶体学报2007，Vol.36Issue(5)：1187-1191,1210,6.
纳米氧化锌对α-氧化铝管膜的改性研究
Study on the Modification of Alpha-alumina Tubular Membrane with Nano Zinc Oxide
摘要
Abstract
A French commercial available alpha-alumina tubular membrane was modified with nano zinc oxide prepared by homogeneous precipitation process using urea and zinc nitrate as raw materials. The modified membrane was characterized with SEM、FTIR、XRD and the influences of the modification on the streaming potential of the alumina membrane and electrophoretic mobility of alumina grains were investigated. The results showed that after modification there was a nano zinc oxide coating with grain size of less than 30nm formed on the alumina grains ' surface and the streaming potential of the modified membrane decreased, so as for the electrophoretic mobility of the alumina grains. The stabilized permeability of the modified membrane had an increase of 156%. It is pointed that this great increase of permeability is due to the increase of membrane's effective pore radius and the decrease of water viscusity near pore walls of membranes.关键词
改性/纳米氧化锌/流动电位/电泳速率/粘度/渗透量Key words
modification/ nano zinc oxide/ streaming potential/ electrophoretic mobility/ viscosity/permeability分类
化学化工引用本文复制引用
刘阳,周健儿,Larbot Andre,Persin Michel..纳米氧化锌对α-氧化铝管膜的改性研究[J].人工晶体学报,2007,36(5):1187-1191,1210,6.基金项目
The project supported by National Project of Advanced Research of China(No.2004CCAO7500) （No.2004CCAO7500）
AFCRST(Associaton Franco-Chinoise pour la Recherche Scientifique et Technique （）
