Sonochemical preparation of silane-coated titania particles

Shafi, Kurikka V. P. M.; Ulman, Abraham; Yan, Xingzhong; Yang, Nan-Loh; Himmelhaus, Michael; Grunze, Michael

doi:10.1021/la001252g

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Sonochemical preparation of silane-coated titania particles

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Grunze, Michael
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;

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Citation

Shafi, K. V. P. M., Ulman, A., Yan, X., Yang, N.-L., Himmelhaus, M., & Grunze, M. (2001). Sonochemical preparation of silane-coated titania particles. Langmuir, 17(5), 1726-1730. doi:10.1021/la001252g.

Cite as: https://hdl.handle.net/21.11116/0000-0001-BDE9-4

Abstract

We report that sonochemistry is a fast and efficient technique for coating of octadecyltrihydrosilane (CH3(CH2)17SiH3) on titania surfaces. Infrared spectroscopy as well as thermal analysis confirms that complete coating is achieved after 30 min. Solid-state 13C NMR spectroscopy establishes the bonding of trihydrosilane to the titania particles. Raman microscopy gives the expected rutile structure and further confirms the presence of an octadecyl monolayer. X-ray diffraction confirms that the rutile structure of the titania particles has not changed during sonication. Anatase titania undergoes the same reaction when sonicated in the presence of octadecyltrihydrosilane.