Assembly of nonionic-anionic co-surfactants to template mesoporous silica vesicles with hierarchical structures

Bin Yang, Karen Edler, C Guo, H Z Liu

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Mesoporous silica vesicles (MSV) with a hierarchical structure were developed using triblock copolymer Pluronic P103 and anionic surfactant sodium dodecyl sulfate (SDS) as a co-surfactant in the present of an inorganic salt, sodium fluoride (NaF). To some extent, variation in the particle size and vesicle cavity diameter can be achieved by adjusting the anionic-nonionic surfactant molar ratio. An onion-like vesicle morphology was obtained by changing the inorganic salt concentration. Based on the fitting of small angle neutron scattering data, a formation mechanism has been proposed. This work opens up a new way to synthesize mesoporous silica vesicles with controllable hierarchical structure using nonionic surfactant P103 and anionic surfactant SDS.
Original languageEnglish
Pages (from-to)21-27
Number of pages7
JournalMicroporous and Mesoporous Materials
Volume131
Issue number1-3
DOIs
Publication statusPublished - Jun 2010

Keywords

  • self-assembly
  • mesoporous silica
  • co-surfactant
  • multilayer vesicle

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