Fabrication and morphological control of three-dimensional cage type mesoporous titanosilicate with extremely high Ti content

19Citations
Citations of this article
8Readers
Mendeley users who have this article in their library.
Get full text

Abstract

TiSBA-1 materials with extremely high Ti content, up to silicon to titanium ratio (nSi/nTi) of 2.4, have been successfully prepared through direct synthesis method by controlling the molar ratio of hydrochloric acid to silicon (nHCl/nSi). It has been found that the amount of Ti content and the structure of the TiSBA-1 can easily be controlled by the simple adjustment of nHCl/nSi ratio. X-ray diffraction pattern (XRD) of the obtained materials revealed that the materials are highly ordered and possess cubic three-dimensional cage type structure with open windows. N2 adsorption-desorption measurement confirmed the narrow pore size distribution, high specific surface area (1317-1491 m2 g-1), and large specific pore volume (0.68-0.75 cm3 g-1) for all the samples. UV-vis DR spectra of the prepared materials confirmed that Ti atoms are exclusively incorporated within silica framework and occupy the tetrahedral position while the presence of isolated bulk titania could be negligible. Morphologies of the TiSBA-1 materials have been also controlled by simply adjusting the nSi/nTi ratio. With the appropriate Ti content, TiSBA-1 materials can be obtained as regular fine spheres. Moreover, the detailed mechanism on the morphological and phase transition control, and the incorporation of high amount of Ti in the framework of TiSBA-1 materials has been also discussed in detail. © 2007 Elsevier Inc. All rights reserved.

Cite

CITATION STYLE

APA

Vinu, A., Srinivasu, P., Sawant, D. P., Alam, S., Mori, T., Ariga, K., … Anand, C. (2008). Fabrication and morphological control of three-dimensional cage type mesoporous titanosilicate with extremely high Ti content. Microporous and Mesoporous Materials, 110(2–3), 422–430. https://doi.org/10.1016/j.micromeso.2007.06.046

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free