Highly Efficient Olefin Oxidation Catalysts based on Regular Nano-particles of Titanium-Containing Mesoporous Molecular Sieves

Authors

Yingying Wang, University of Science and Technology Beijing
Ge Wang, University of Science and Technology Beijing
Mu Yang, University of Science and Technology Beijing
Li Tan, University of Science and Technology Beijing
Wenjun Dong, University of Science and Technology Beijing
Rudy Luck, Michigan Technological UniversityFollow

Document Type

Article

Publication Date

1-15-2011

Department

Department of Chemistry

Abstract

Ti-MCM-41 and Ti-MCM-48 are successfully prepared by one step synthesis and post-synthesis at room temperature. The samples have been characterized by X-ray diffraction, SEM, TEM, nitrogen adsorption/desorption isotherms and UV-Vis spectroscopy. The results demonstrate the existence of an ordered mesoporous structure. The Ti species are grafted into the pure silica sieve frameworks without any evidence of the formation of non-skeleton anatase. The post-synthesis Ti-MCM-41 regular nano-particles display a higher conversion and selectivity as compared to that for both the post-synthesis Ti-MCM-48 and Ti-MCM-41 with ordinary particles, in the epoxidation of cis-cyclooctene with aqueous H₂O₂ as an oxidant. The enhanced catalytic activity may be attributed to the existence of a higher number of isolated tetracoordinated Ti active sites and regular nano-particles, which are conducive to the affinity of the reactants with active sites.

Publisher's Statement

© 2010 Elsevier Inc.

Publication Title

Journal of Colloid and Interface Science

Recommended Citation

Wang, Y., Wang, G., Yang, M., Tan, L., Dong, W., & Luck, R. (2011). Highly Efficient Olefin Oxidation Catalysts based on Regular Nano-particles of Titanium-Containing Mesoporous Molecular Sieves. Journal of Colloid and Interface Science, 353(2), 519-523. http://doi.org/10.1016/j.jcis.2010.09.086
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/6632