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A facile organosilane-based strategy for direct synthesis of thin MWW-type titanosilicate with high catalytic oxidation performance

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Abstract

Although numerous strategies have been developed to improve the diffusion and catalytic activity of MWW-type titanosilicate (Ti-MWW zeolite) in oxidation of bulky molecules, preparation of Ti-MWW zeolite with high external specific surface area (SSA) by a simple and efficient method is still highly required. Herein, a facile organosilane-based synthetic strategy was successfully developed to prepare thin Ti-MWW zeolite with a thickness of 15 ± 5 nm and an external SSA as high as about 210 m2 g−1. Moreover, based on the structural characterization, the synthesis mechanism of the thin Ti-MWW zeolite was discussed in detail. Importantly, due to more framework TiO4 species and their better accessibility, the obtained thin MWW-type titanosilicate showed superior catalytic performance in epoxidation of bulky olefins than conventional Ti-MWW zeolite. It is believed that this facile organosilane-based synthetic strategy can be used in the development of other highly efficient layered zeolite catalysts.

Graphical abstract: A facile organosilane-based strategy for direct synthesis of thin MWW-type titanosilicate with high catalytic oxidation performance

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Publication details

The article was received on 19 Sep 2018, accepted on 29 Sep 2018 and first published on 01 Oct 2018


Article type: Paper
DOI: 10.1039/C8CY01947A
Citation: Catal. Sci. Technol., 2018, Advance Article
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    A facile organosilane-based strategy for direct synthesis of thin MWW-type titanosilicate with high catalytic oxidation performance

    S. Jin, G. Tao, S. Zhang, Y. Luo, W. Fu, Z. Wang, H. Gao, H. Sun and W. Yang, Catal. Sci. Technol., 2018, Advance Article , DOI: 10.1039/C8CY01947A

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