摘要
采用二次生长法在α-Al2O3载体上制备了ZSM-5及Fe-ZSM-5分子筛膜,合成后的ZSM-5和Fe-ZSM-5分子筛膜在450℃温度条件下脱除模板剂,采用NaOH和NaCO3处理ZSM-5和Fe-ZSM-5分子筛膜后,可提高其亲水性,改善了膜层对乙醇水溶液的脱水性能,渗透通量和分离因子均有所提高。其中Fe-ZSM-5分子筛膜经NaOH处理后,渗透通量为2.01kg·m-2·h-1,分离因子为21.0。
ZSM-5and Fe-ZSM-5 membranes were synthesized on α-Al2O3 by secondary growth.The organic templates were removed at 450℃ in the flowing air environment.After ZSM-5and Fe-ZSM-5membranes were treated with NaOH or NaCO3 solution,the hydrophilicity of the membrane surface could be enhanced,leading to improved permeation flux and separation factor in prevoporation of aqueous ethanol solution.After treated by NaOH for 2h,the permeation flux of Fe-ZSM-5membrane could reach to 2.01kg·m-2·h-1 with the separation factor of 21.0.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2014年第S2期304-309,共6页
CIESC Journal
基金
国家自然科学基金重点项目(21136008)~~
