Facile route to synthesize mesoporous silica SBA-15 platelets

Yi Ding, Hui Dan, Xirui Lu, Yanlin Wu, Shibin Yuan, Xueli Mao

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Highly ordered mesoporous silica SBA-15 platelets have been directly synthesized using triblock copolymer P123 as structure-directing agent and tetraethyl orthosilicate (TEOS) as silica source without additives. By tuning the synthesis temperature and HCl concentration, platelet-like SBA-15 particles with short pore (150-350 nm) running parallel to the thickness of platelets could be facilely obtained. The synthesis temperature and acidity revealed strong effect not only on mesostructural properties, but also on macrostructural morphologies of the obtained materials. It was found that the side to side aggregation of primary particles in an oriented manner occurred and platelet-like particles were formed at the appropriate temperature and acidity. Furthermore, possible mechanism for the growth of SBA-15 platelets was suggested.

Original languageEnglish
Pages (from-to)17-20
Number of pages4
JournalMaterials Chemistry and Physics
Volume148
Issue number1-2
DOIs
Publication statusPublished - 2014 Nov 14
Externally publishedYes

Keywords

  • Chemical synthesis
  • Microporous materials
  • Nanostructures
  • Sol-gel growth

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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