Journal of Materials Science

, Volume 42, Issue 12, pp 4461–4469 | Cite as

Synthesis of 3-dimensional mesoporous silica using a di-block copolymer template

  • Jinlan Ju
  • Huining XiaoEmail author
  • Zisheng Zhang


Exploring polymeric surfactants as templates for synthesizing ordered mesoporous silicas has become increasingly important for both academic interests and industrial applications. In this work, we employed C16EO40, a di-block copolymer polyethylene-poly(ethylene oxide), as template in an attempt to synthesize a modified 3-dimensional wormhole mesoporous silicas (WMS-39). In addition, various synthesizing conditions were investigated, including pre-hydrolysis time of TEOS, reaction temperatures and the ratios of TEOS to template. The products were characterized using powder XRD, TEM, 29Si MAS NMR and nitrogen adsorption measurements. The characteristics of as-synthesized mesoporous silica were compared with SBA-15, a highly ordered mesoporous silica, prepared using non-ionic tri-block copolymers of poly(ethylene oxide)–poly(propylene oxide)–poly(ethylene oxide) as templates. The WMS-39 materials have a BET surface area of 600–970 m2/g and narrowly distributed pore diameter around 3.9 nm. The morphology of WMS-39 was found to be wormhole framework as indicated in TEM diagrams. Thermal transformation of the as-synthesized mesoporous materials were carefully analyzed with TGA/DTA. Findings obtained from this work enable us to propose a modified assembly mechanism of mesoporous silicas.


Mesoporous Silica Ethylene Oxide Ethylene Oxide Transmission Electron Micrographs Hexagonal Mesoporous Silica 



The authors are grateful to the AIF (Atlantic Innovation Foundation) Canada for financial support. The authors also express their thanks to Dr Michael Lumsden at the Dalhousie University for 29Si MAS NMR analysis, and Dr Louise Weaver at the University of New Brunswick for TEM measurements.


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Department of Chemical EngineeringUniversity of New BrunswickFrederictonCanada
  2. 2.Department of Chemical EngineeringUniversity of OttawaOttawaCanada
  3. 3.State Key Lab of Pulp & Paper Eng.South China University of TechnologyGuangzhouChina

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