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Acta Physico-Chimica Sinica  2002, Vol. 18 Issue (10): 911-915    DOI: 10.3866/PKU.WHXB20021009
Article     
The Synthesis of Mesoporous Molecular Sieve MCM-48 Using Two Surfactants as Co-template
Zhai Shang-Ru;Pu Min;Gong Yan-Jun;Zhang Ye;Wu Dong;Sun Yu-Han
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001;School of Science, Xi'an Jiaotong University, Xi'an 710049
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Abstract  A convenient synthesis of mesoporous molecular sieve MCM-48 by hydrothermal method using nonionic surfactant p-Octyl polyethylene glycol phenyl ether and cationic surfactant cetyltrimethyl-ammoniun bromide as co-template is reported. In this approach, nonionic surfactant p-Octyl polyethylene glycol phenyl ether by strong van der Waals and hydrogen bonding can greatly lower the amount of cationic surfactant necessary to synthesize molecular sieve MCM-48, at the same time, the with introduction of nonionic surfactant to the mixed surfactants micelle more extensively cross-linked framework and therefore higher thermal stability and higher crystallinity MCM-48 mesoporous molecular sieves were obtained. The synthesis was conducted at a very low mass fraction of mixed surfactants (about 4.6%) and a very low molar ratio of total surfactants to silica (about 0.152:1). Several mesoporous molecular sieves could be prepared by simply adjusting the molar ratio of p-Octyl polyethylene glycol phenyl ether to cetyltrimethyl-ammoniun bromide within a certain range.

Key wordsMesoporous molecular sieve MCM-48      Hydrothermal method      Co-template      Nonionic surfactant     
Received: 24 January 2002      Published: 15 October 2002
Corresponding Authors: Wu Dong     E-mail: wudong@public.ty.sx.cn
Cite this article:

Zhai Shang-Ru;Pu Min;Gong Yan-Jun;Zhang Ye;Wu Dong;Sun Yu-Han. The Synthesis of Mesoporous Molecular Sieve MCM-48 Using Two Surfactants as Co-template. Acta Physico-Chimica Sinica, 2002, 18(10): 911-915.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.3866/PKU.WHXB20021009     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2002/V18/I10/911

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