无机材料学报2016，Vol.31Issue(7)：705-710,6.DOI:10.15541/jim20150631
清液体系高性能T型分子筛膜的制备及表征
Preparation and Characterization of High Performance Zeolite T Membranes from Clear Solutions
摘要
Abstract
T-type zeolite membrances with high permeation performance were successfully synthesized on the low cost macroporousα-Al2O3 tubular support by secondary growth from clear solutions. The effects of the con-centration of seeds and the membrane crystallization time on the morphology and pervaporation properties of zeo-lite T membrances. When the molar ration of the synthesis solution was 1SiO2:0.05Al2O3:0.26Na2O:0.09K2O: 30H2O, a high quality T zeolite membrane was obtained at crystallization temperature of 120℃ for 16 h, with water flux of 2.96 kg/(m2·h) and separation factor of 6400 for dehydration of IPA aqueous solution by pervaporation at 75℃. XRD pattern and SEM observation suggested that the shortened membrane crystallization time resulted from the secondary nucleation induced by the seeds and the seeds epitaxial growth.关键词
T型沸石分子筛膜/变温热浸渍法/二次生长法/渗透汽化Key words
T-type zeolite membrance/varying temperature hot dip-coating method/secondary growth/per-vaporation分类
化学化工引用本文复制引用
吕尤佳,李华征,杨建华,王金渠,殷德宏,鲁金明..清液体系高性能T型分子筛膜的制备及表征[J].无机材料学报,2016,31(7):705-710,6.基金项目
国家高新技术研究发展计划(863计划)(2015AA03A602) （863计划）
国家自然科学基金(21376036) National High Technology Research and Development Program of China (2015AA03A602) （21376036）
National Natural Science Foundation of China (21376036) （21376036）
