Synthesis of Ti-MCM-41 using colloidal silica and titanium trichloride II. Characterization of Ti-MCM-41 molecular sieve

Jianqiang Yu, Can Li, Lei Xu, Meijun Li, Qin Xin, Zhongmin Liu

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23 Scopus citations

Abstract

The Ti-MCM-41 molecular sieve synthesized with colloidal silica and titanium trichloride has been characterized by nitrogen adsorption, TG-DTA and spectroscopies of FT-IR, UV-Vis and UV-Raman. N2 adsorption isotherms reveal that with the incorporation of titanium into the framework of the molecular sieve, the pore size decreases and the wall thickness increases. TG and DTA profiles suggest that different template sorption sites exist in the framework of Ti-MCM-41. FT-IR, UV-Vis and UV-Raman spectra indicate that the formation of anatase TiO2 can be avoided during the preparation of the synthesis gel and the crystallization of the molecular sieve. Most Ti4+ ions are isolated and tetrahedrally coordinated in the framework of MCM-41.

Original languageEnglish
Pages (from-to)331-334
Number of pages4
JournalChinese Journal of Catalysis
Volume22
Issue number4
StatePublished - 2001
Externally publishedYes

Keywords

  • Mesoporous molecular sieve
  • Pore structure
  • Skeleton structure
  • Ti-MCM-41

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