Synthesis of highly-ordered mesoporous silica particles using mixed cationic and anionic surfactants as templates

Takahiro Ohkubo, Taku Ogura, Hideki Sakai, Masahiko Abe

研究成果査読

24 被引用数 (Scopus)

抄録

We applied a molecular assembly formed in an aqueous surfactant mixture of cationic cetyltrimethylammonium bromide (CTAB) and anionic sodium octylsulfate (SOS) as templates of mesoporous silica materials. The hexagonal pore size can be controlled between 3.22 and 3.66 nm with the mixed surfactant system. In addition, we could observe the lamellar structure of the mixed surfactants with precursor molecules, which strongly shows the possibility of precise control of both the pore size and the structure of pores by changing the mixing ratio of surfactants. Moreover, use of the cationic surfactant having longer hydrophobic chain like stearyltrimethylammonium bromide (STAB) caused the increase in d100 space and shifted the point of phase transition from hexagonal phase to lamellar phase to lower concentration of SOS.

本文言語English
ページ(範囲)42-46
ページ数5
ジャーナルJournal of Colloid And Interface Science
312
1
DOI
出版ステータスPublished - 8月 1 2007
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 生体材料
  • 表面、皮膜および薄膜
  • コロイド化学および表面化学

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