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

doi:10.3724/SP.J.1077.2013.12425

Journal of Inorganic Materials ›› 2013, Vol. 28 ›› Issue (06): 589-593.DOI: 10.3724/SP.J.1077.2013.12425

• Research Paper • Previous Articles Next Articles

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)

Abstract

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

CLC Number:

TQ174

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

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