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Synthesis of Mesoporous Silica Submicrospheres with High Specific Surface Area via a Modified Octylamine Templating Process

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dc.contributor.author XIANG-FENG WU
dc.contributor.author CHANG-RUI WANG
dc.contributor.author YONG-KE ZHAO
dc.date.accessioned 2023-11-17T10:37:38Z
dc.date.available 2023-11-17T10:37:38Z
dc.date.issued 2013-08-11
dc.identifier.citation Wu, X. F., Wang, C. R. W., & Zhao, Y. (2013). Synthesis of mesoporous silica submicrospheres with high specific surface area via a modified octylamine templating process. Journal of the Chemical Society of Pakistan, 35(4), 1143-1147. en_US
dc.identifier.issn 0253-5106
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/19957
dc.description.abstract Mesoporous silica submicrospheres with high specific surface area, 930.9m⁹/g, were synthesized without using any acid or alkali as catalyst. Tetraethoxysilane as silica source, octylamine as template and polyoxyethylene (20) sorbitan monolaurate as emulsifier were adopted in this work. The as-prepared spheres were characterized with scanning electron microscopy, energy disperse spectroscopy, thermal gravimetric analysis, small angle X-ray diffraction and nitrogen adsorption, respectively. The results showed that octylamine vesicles were incorporated by silica shell in dilute sodium chloride solution, and the morphology and dispersity of submicrospheres were improved by using polyoxyethylene (20) sorbitan monolaurate. Moreover, the size of as-prepared products was gradually decreased as the amounts of polyoxyethylene (20) sorbitan monolaurate increased. In addition, the shell of the submicrospheres with narrowly distributed nanopores became more and more unordered with the prolonging of the calcinating time. en_US
dc.description.sponsorship The chemical society of Pakistan is an approved society from the PSF. en_US
dc.language.iso en en_US
dc.publisher HEJ Research Institute of Chemistry, University of Karachi, Karachi. en_US
dc.subject Mesoporous silica submicrospheres en_US
dc.subject Octylamine en_US
dc.subject Tween 20 en_US
dc.title Synthesis of Mesoporous Silica Submicrospheres with High Specific Surface Area via a Modified Octylamine Templating Process en_US
dc.type Article en_US


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