Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance upgrade on Thursday 4th of May 2017 from 8.00am to 9.00am (BST).

During this time our websites will be offline temporarily. If you have any questions please use the feedback button on this page. We apologise for any inconvenience this might cause and thank you for your patience.



Crystallization mechanism and catalytic performance of TS-1 synthesized by aerosol-assisted method

Abstract

TS-1 was synthesized by an aerosol-assisted method. The SiO2-TiO2 amorphous powder was prepared by an aerosol process from an aqueous solution of silicon and titanium source in an acid condition, which can make titanium ions highly distributed without complex operations. The powder was crystallized with a given amount of template agent (25% TPAOH) under autogenous pressure. Without adding extra water, the crystallization system maintained a high concentration of template agent, which can significantly reduce the amount of template and the discharge of polluted water. TS-1 with different Si/Ti ratios and different crystallization times were synthesized from the SiO2-TiO2 amorphous powder by the aerosol-assisted method. The structure, composition and morphology of TS-1 were characterized by X-ray diffraction, UV-vis spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), X-ray fluorescence spectrometry (XRF) and electron microscopy. The crystallization mechanism of TS-1 has been studied at different crystallization times. The results indicated that the crystallization process followed the liquid-phase mechanism. The incorporation of the Ti species into the framework was delayed as compared to that of Si species. Furthermore, TS-1 exhibited good catalytic performance in propylene epoxidation with hydrogen peroxide.

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 22 Feb 2017, accepted on 04 Apr 2017 and first published on 04 Apr 2017


Article type: Paper
DOI: 10.1039/C7CE00364A
Citation: CrystEngComm, 2017, Accepted Manuscript
  •   Request permissions

    Crystallization mechanism and catalytic performance of TS-1 synthesized by aerosol-assisted method

    Z. Guo, G. Xiong, L. Liu, W. Song and Q. Jia, CrystEngComm, 2017, Accepted Manuscript , DOI: 10.1039/C7CE00364A

Search articles by author