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Preparation and catalytic properties of TS-1 zeolite membranes

Authors： ZHU Meihua, LI Ling, DING Wenjuan, CHEN Le, LI Yuqin, GUI Tian*, Chen Xiangshu*

Units： Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, P.R. China State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, P.R. China

KeyWords： TS-1 zeolite membrane; H2O2 oxidation; Pervaporation

ClassificationCode：O6，TQ，G3

year,volume(issue):pagination： 2018,38(2):45-51

Abstract：

The TS-1 zeolite membrane was synthesized on a tubular mullite support by secondary hydrothermal synthesis. Influences of the concentration of seed crystal suspension, H2O2/SiO2 ratio and crystal seed content in the precursor synthesis solution on growth and catalytic performance of TS-1 zeolite membrane were investigated by XRD and SEM characterization. When the molar ratio of the initial synthesis solution, concentration of seed crystal suspension, H2O2/SiO2 molar ratio and crystal seed content in the precursor synthesis solution, synthesis temperature and synthesis time were SiO2:0.03TiO2:0.2TPAOH:120H2O, 5 wt%, 6, 1 wt%, 150 ℃ and 24 h, respectively, the as-synthesized TS-1 zeolite membrane showed an excellent catalytic performance in the oxidation of iso-propanol and hydrogen peroxide by pervaporation. Besides, when isopropanol/H2O2 molar ratio and reaction temperature in the pervaporation-catalytic oxidation process, were 1:2 and 70 ℃, the iso-propanol conversion and flux of the TS-1 zeolite membrane were 81.14% and 2.23 kg·m-2·h-1, respectively.

Funds：

国家自然科学基金面上项目(21476099)，国家国际科技合作专项（2015DFA50190），江西省科技厅科技项目((20171BCB24005)

AuthorIntro：

第一作者简介：朱美华（1985年8月），女，江西景德镇人，工学博士，副教授，研究方向为分子筛膜的制备与应用，E-mail：zhumeihua@jxnu.edu.cn 通讯作者：陈祥树，E-mail： cxs66cn@jxnu.edu.cn

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