Citation: Li Che, Teng Xu, Jian Din, Hai Hong W, Kun Zhan, Peng W, Ming-Yuan H. Hydrothermal synthesis and catalytic performance of bulky titanium silicalite-1 aggregates assembled by bridged organosilane[J]. Chinese Journal of Catalysis, ;2018, 39(2): 275-282. doi: 10.1016/S1872-2067(18)63026-8 shu

Hydrothermal synthesis and catalytic performance of bulky titanium silicalite-1 aggregates assembled by bridged organosilane

Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemical and Molecular Engineering, East China Normal University, Shanghai 200062, China

Received Date: 8 October 2017
Revised Date: 18 January 2018

Fund Project: This work was supported by the National Natural Science Foundation of China (21503081, 21503073, 21403070, 21707093), and the National Key Research and Development Program of China (2017YFA0403102).

A facile and effective method to synthesize TS-1 zeolite aggregates has been presented. The crystallization of silanized seeds and nanocrystallites led to large and irregular TS-1 zeolite aggregates ranging from 5 to 40 μm in size, based on the special sol-gel chemistry of bridged organosilane. Epoxidation of 1-hexene and cyclohexene was used as a probe reaction to investigate the catalytic performance of the resulting materials. These TS-1 zeolite aggregates possessed both the conventional nanoparticle properties of TS-1 zeolites and variable surface hydrophilic/hydrophobic features, which enhanced the catalytic properties of hydroperoxides for alkene epoxidation. Moreover, the large aggregates effectively simplified the separation procedure during preparation and catalytic reactions.
- Bridged organosilane,
- TS-1 seeds,
- TS-1 nanocrystallites,
- Zeolite aggregation,
- Alkene epoxidation
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