水蒸汽辅助凝胶转化法合成连续致密的TAPO-5分子筛膜

doi:10.3724/SP.J.1077.2013.12425

无机材料学报 ›› 2013, Vol. 28 ›› Issue (06): 589-593.DOI: 10.3724/SP.J.1077.2013.12425 CSTR: 32189.14.SP.J.1077.2013.12425

水蒸汽辅助凝胶转化法合成连续致密的TAPO-5分子筛膜

王俊芬¹, 刘旭光¹, 张萍萍¹, 张宝泉^1,2

(1. 青岛科技大学材料科学与工程学院, 青岛266042; 2. 天津大学化工学院化学工程国家重点实验室, 天津300072)

收稿日期:2012-07-06 修回日期:2012-09-29 出版日期:2013-06-20 网络出版日期:2013-05-20
作者简介:王俊芬(1986–), 女, 硕士研究生. E-mail: ngjunfen123456@163.com
基金资助:
国家自然科学基金重点项目(21136008); 山东省泰山学者建设工程项目(ts20081119)

Synthesis of Continuous and Dense TAPO-5 Molecular Sieve Membranes by Steam-assisted Gel Conversion Method

WANG Jun-Fen¹, LIU Xu-Guang¹, ZHANG Ping-Ping¹, ZHANG Bao-Quan^1,2

(1. College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; 2. Sate Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China)

Received:2012-07-06 Revised:2012-09-29 Published:2013-06-20 Online:2013-05-20
About author:WANG Jun-Fen. E-mail: ngjunfen123456@163.com
Supported by:
Key Program of National Natural Science Foundation of China (21136008); Taishan Scholars Project of Shandong Province (ts20081119)

摘要/Abstract

摘要： 采用水蒸汽辅助凝胶转化法合成TAPO-5分子筛膜, 使用XRD、SEM和UV-Vis对膜层进行了表征, 并与传统水热晶化法进行了对比。通过探讨老化模式和晶化时间对TAPO-5分子筛膜表面形貌、晶粒结构与交联性以及膜层覆盖度与致密性的影响, 发现使用水蒸汽辅助凝胶转化法, 在预先老化条件下晶化48 h, 有利于TAPO-5分子筛在载体表面的生长, 在多孔α-Al₂O₃载体表面形成完整、致密的TAPO-5分子筛膜, 也有利于形成骨架钛。

关键词: TAPO-5分子筛膜, 水蒸汽辅助凝胶转化法, 合成条件

Abstract: TAPO-5 molecular sieve membranes were synthesized by using steam-assisted gel conversion method. The as-synthesized TAPO-5 membranes were characterized using X-ray diffraction (XRD), scanning electron microscope (SEM), as well as UV-visible diffuse reflectance spectroscope (UV-Vis). Results were compared with those by conventional hydrothermal crystallization method. The influences of the aging conditions and crystallization time on the surface morphology, coverage and denseness of the membrane together with the crystalline structure of molecular sieve crystals were investigated. By using steam-assisted gel conversion method, continuous and dense TAPO-5 molecular sieve membranes could be fabricated on porous α-Al₂O₃ substrates after crystallization for 48 h because the pre-aged solid gel were favorable to the incorporation of Ti atoms into the tetrahedral framework and the intergrowth of TAPO-5 crystals.

Key words: TAPO-5 molecular sieve membrane, steam-assisted gel conversion, synthesis conditions

中图分类号:

TQ174

王俊芬, 刘旭光, 张萍萍, 张宝泉. 水蒸汽辅助凝胶转化法合成连续致密的TAPO-5分子筛膜[J]. 无机材料学报, 2013, 28(06): 589-593.

WANG Jun-Fen, LIU Xu-Guang, ZHANG Ping-Ping, ZHANG Bao-Quan. Synthesis of Continuous and Dense TAPO-5 Molecular Sieve Membranes by Steam-assisted Gel Conversion Method[J]. Journal of Inorganic Materials, 2013, 28(06): 589-593.

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水蒸汽辅助凝胶转化法合成连续致密的TAPO-5分子筛膜

Synthesis of Continuous and Dense TAPO-5 Molecular Sieve Membranes by Steam-assisted Gel Conversion Method

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