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六方中孔硅分子筛的合成与表征

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2008年06期
Page:
13-18
Column:
研究论文
publishdate:
2008-11-30

Article Info:/Info

Title:
Synthesis and characterization of hexagonal mesoporous silica molecular sieve
Article ID:
1000-2006(2008)06-0013-06
Author(s):
CHEN Jun-hua12 WANG Fei1* DING Zhi-jie2 CHEN Zhong-ping2 ZHANG Ping2 WU Jun2 FU Zai-hui3
1. College of Chemical Engineering Nanjing Forestry University, Nanjing 210037, China;2. Chemistry Department of Anhui Science and Technology University, Fengyang 233 I00, China ;3. College of Chemistry and Chemical Engineering Hunan Normal University,Changsha 410081 ,China
Keywords:
Hexagonal mesoporous silica Synthesis Extraction Characterization
Classification number :
O643.3
DOI:
10.3969/j.jssn.1000-2006.2008.06.004
Document Code:
A
Abstract:
Using dodecyl amine (DDA) as template agent, hexagonal mesoporous silica molecular sieve containing DDA(HMS-DDA) was successfully synthesized by sol-gel method at room temperature. Then the effects of calcination and solvent-extraction, especially the solvents and extraction time on the structure of HMS in the course of extracting or calcining DDA from HMS-DDA were investigated. Characterization of the mesoporous silica materials was carried out by means of FT - IR, XRD, HRTEM, XPS and TG - DTA. The experimental results showed that the calcination temperature, extraction time and solvents had great effects on the crystal lattice recombination, mesoporous degree and framework stability of HMS. The HMS material had higher mesoporous ordered degree and the most stable mesoporous structure when HMS - DDA was extracted with acetone for 9 hours. In addition, the S° I° molecule self-assembly mechanism of HMS - DDA was confirmed.

References

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Last Update: 2013-05-20