Journal of Northeastern University(Natural Science)

Journal of Northeastern University ›› 2012, Vol. 33 ›› Issue (10): 1415-1418.DOI: -

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Synthesis of ordered mesoporous SBA-15 by partitioned cooperative self-assembly using sodium silicate as precursor

Shan, Wei-Jun (1); Wang, Wei (2); Wang, Bao-Xin (3); Ru, Hong-Qiang (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China; (2) Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110819, China; (3) College of Chemistry, Liaoning University, Shenyang 110036, China
  • Received:2013-06-19 Revised:2013-06-19 Online:2012-10-15 Published:2013-04-04
  • Contact: Ru, H.-Q.
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Abstract: The ordered mesoporous SBA-15 was synthesized by the conventional process as well as the partitioned cooperative self-assembly (PCSA) process using the nonionic triblock copolymers (P123) as template and sodium silicate as the silica precursor. The influence of the amounts of sodium silicate on the mesostructures of SBA-15 from the conventional process and the PCSA process, respectively, were investigated. Compared with the conventional process, without using any additives and especial synthetic conditions, the PCSA process can effectively produce larger mesopore size (up to 10.3 nm, KJS) of SBA-15 by adjusting the additive mass of sodium silicate in different stages of the process. The PCSA process can also facilely adjust the pore wall thickness and microporosities of SBA-15 in a controllable way.

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