化工学报2015，Vol.66Issue(9)：3769-3775,7.DOI:10.11949/j.issn.0438-1157.20150936
改进的颗粒溶胶工艺制备高性能 ZrO2-TiO2 复合纳滤膜
Fabrication of high performance ZrO2-TiO2 NF membranes via a modified colloidal sol-gel process
摘要
Abstract
The optimized ZrO2-TiO2 composite colloidal sols with an average particle size of 3 nm were successfully synthesized via a modified colloidal sol-gel process by using water as solvent. Tubular α-Al2O3 membranes with a mean pore size of 5 nm were used as the intermediate layers. Defect-free ZrO2-TiO2 NF membranes were then fabricated on the interlayer surface via a dip-coating method. The ZrO2-TiO2 NF membranes with an average toplayer thickness of 200 nm showed the relatively high pure water permeability of about 23 L·m?2·h?1·(0.1 MPa)?1 and low MWCO of about 600. Meanwhile, the ZrO2-TiO2 NF membranes indicated the high retention rates for Co2+, Sr2+ and Cs+ of 99.6%, 99.2% and 75.5% at the condition of low salts concentration, pH = 3 and the transmembrane pressure of 0.9 MPa, respectively.关键词
陶瓷纳滤膜/颗粒溶胶/ZrO2-TiO2/离子截留Key words
ceramic NF membranes/colloidal sols/ZrO2-TiO2/ions rejection分类
化学化工引用本文复制引用
陆亚伟,陈献富,闻娟娟,邱鸣慧,范益群..改进的颗粒溶胶工艺制备高性能 ZrO2-TiO2 复合纳滤膜[J].化工学报,2015,66(9):3769-3775,7.基金项目
国家高技术研究发展计划项目(2012AA03A606) （2012AA03A606）
江苏高校优势学科建设工程 （）
江苏省"六大人才高峰"项目.supported by the National High Technology Research and Development Program of China (2012AA03A606), the Project of Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), the "Peak Specialists in Six Industries" High-level Specialist Fund of Jiangsu Province (2012JNHB016). （2012AA03A606）
