Surface Modification of Titanium(IV) Oxide Sol-Gel Powders by Sulfur

Автори: 
Yaroslav Vakhula, Khrystyna Besaha and Iryna Lutsyuk

The synthesis of titanium(IV) oxide nanopowders modified by sulfur with the help of sol-gel method has been described. The structure of surface layers has been investigated using X-ray diffraction analysis, a scanning electron microscopy, IR-spectroscopy and X-ray photoelectron spectroscopy. The possible mechanism of powders surface modification by sulfur has been shown, as well as the dependence of specific surface on sulfur content.

[1] Gnatyuk Y., Manuylov Y., Smirnova N. and Yeromenko G.: Fizyka i Khim. Tverd. Tila, 2006, 7, 107. 
[2] Bezrodna T., Gavrilko T., Puchkovska G. et al.: Funct. Mat., 2002, 9, 732.
[3] Corrota M., Ferroni M., Gherardi S. et al: J. Eur. Ceram. Soc., 2004, 24, 1409.
[4] Yu J., Liu S., Xiu Zh. et al.: J. Alloys Comp., 2009, 471, L23. 
[5] Li H., Zhang X., Huo Y. and Zhu J.: Environ. Sci. Techn., 2007, 41, 4410. 
[6] Besaha K. and Vakhula Ya.: Khim. Promyslovist Ukrainy, 2010, 2, 29.
[7] Vakhula Ya. and Besaha K.: Visnyk Kyiv. Politechn. Inst., 2010, 52, 141.
[8] Wei F., Ni L. and Cui P.: J. Hazard Mater., 2008, 156, 135. 
[9] Katoh M., Aihara H., Horikawa T. and Tomida T.: J. Colloid Interface Sci., 2006, 298, 805. 
[10] Hague D. and Mayo M.: J. Am. Ceram. Soc., 1994, 77, 1957. 
[11] Tajammul H., Khaiber K. and Hussain R.: J. Nat. Gas Chem., 2009, 18, 383. 
[12] Tsyganenko A. and Filimonov V.: Uspekhi Fotoniki, 1974, 4, 51.
[13] Davydov A.: IK-Spektroskopiya v Khimii Poverkhnosti Okislov. Nauka, Novosibirsk 1984.
[14] Kiselyov V. and Krylov O.: Adsorbtsyonnye Procesy na Poverhnosti Poluprovodnikov i Dielektrykov. Nauka, Moskwa 1978. 
[15] Nakamoto K.: Infrared and Raman Spectra of Inorganic and Coordination Compounds. Wiley-Intersci. Publ., John Wiley and sons, New York 1991.