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Citation: Zhai Shang-Ru, Pu Min, ng Yan-Jun, Zhang Ye, Wu Dong, Sun Yu-Han. The Synthesis of Mesoporous Molecular Sieve MCM-48 Using Two Surfactants as Co-template[J]. Acta Physico-Chimica Sinica, ;2002, 18(10): 911-915. doi: 10.3866/PKU.WHXB20021009 shu

The Synthesis of Mesoporous Molecular Sieve MCM-48 Using Two Surfactants as Co-template

1.
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

Received Date: 24 January 2002
Available Online: 15 October 2002

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.
- Mesoporous molecular sieve MCM-48;Hydrothermal method;Co-template; Nonionic surfactant
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