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Citation: ZHAO Chun-Xia, CHEN Wen, LIU Qi, TIAN Gao. Influence of HCl on the Mesostructure and Morphology of the Ordered Mesoporous Silica[J]. Acta Physico-Chimica Sinica, ;2006, 22(10): 1201-1205. doi: 10.3866/PKU.WHXB20061006 shu

Influence of HCl on the Mesostructure and Morphology of the Ordered Mesoporous Silica

1.
Institute of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, P. R. China

Received Date: 15 March 2006
Available Online: 11 October 2006

Ordered mesoporous molecular sieves SBA-15 were synthesized by hydrothermal reaction with TEOS as the source of inorganic silica and tri-block copolymer P123 as the template in strong acid media with HCl. Characteristics of the structure and micro-morphology of the synthesized samples were investigated by means of XRD, SEM, TEM, and N2 adsorption-desorption analysis. The results indicated that HCl played a role of catalyst in the synthesizing process. It could enhance the formation of hexa nal ordered arrangement of the surfactant micelles. HCl could reduce the number of micropores. Apporpriate amount of HCl was favourable to form the thermally stable SBA-15 with the morphology of pearl-like chains.
- Mesoporous silica;HCl;Mesostructure;Morphology
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