Preparation and Photodegradation Activity of TiO2 Thin Film with Sulfur-Carbon-Doping

• Autorzy: Xu K. J. , Yang X. C. , Dong S. H.
• Języki publikacji: EN

Abstrakty

EN

S-C-TiO2 films with thiourea as the source of S and with honey comb ceramic wafers as carriers were prepared by sol-gel-dipping-lifting method. The performances of S-C-TiO2 films were characterized by the XRD diffractometer, the XPS spectrometer, the UV-Vis spectrophotometer and BET. The results showed that S atoms substituting part of Ti atoms and forming Ti1-xSxO2 state with a little of carbon might be in the state of S4+ existing in TiO2 crystal lattices, and suitable amount of S and C-doping both increases the absorbance of TiO2 under visible light and inhibits the particles growth. Synchronously, a little remained organic matters existed in TiO2 crystal lattices. The research on effect of different sulfur-doping contents on the photodegradation of TiO2 film showed that the degradation activity of S-C-TiO2 film on methylene blue was optimal when the proportion of thiourea to tetrabutoxide Ti(OC4H9)4 was 3:1, and the decomposition rate of methylene blue was more than 99% after photoirradiation for 5 h.

Słowa kluczowe

EN

sol-gel method; titanium dioxide; sulfur-doping; nano-S-C-TiO2 film; photodegradation activity

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2008
• Tom: Vol. 82, nr 11
• Strony: 2189--2195
• Opis fizyczny: Bibliogr. 16 poz., rys.

Twórcy

autor

Xu K. J.

autor

Yang X. C.

autor

Dong S. H.

• School of Materials Science and Engineering, Shandong University of Technology, No.12, Zhangzhou Road, Zibo 255049, Shandong Province, P. R. China phone: [phone]; fax: [phone],

Bibliografia

• 1. Fujishima A. and Honda K., Nature, 238, 5551 (1972).
• 2. Ohno T., Nakabega K. and Matsumura M., J. Catal., 176, 76 (1998).
• 3. Ohno T., Tukieda K., Higashida S. and Matsumura M., Appl. Catal. A, l, 6462 (2003).
• 4. Sattler C., Funden K.H., De Diveira L., Tzschirner M. and Machado A.E.H., Water Sci. and Technol.,49(4), 189(2004).
• 5. Choi W., Termin A. and Hoffmann M.R., J. Phys. Chem., 98, 13669 (1994).
• 6. KobayakawaK., Murakami Y. and Sato Y., J. Photochem. and Photobiol. A: Chem., 170,177 (2005).
• 7. Asahi R., Morkawa T., Ohwaki T., Aoki K. and Taga Y., Science, 293(13), 269 (2001).
• 8. Umebayashi T., Yamaki T., Itoh H. and Asai K., Appl. Phys. Lett., 81(3), 454 (2002).
• 9. Janus M., Tryba B., Inagaki M. and Morawski A.W., Appl Catal. B: Environ, 52, 61 (2004).
• lO. Miao L., Tanemura S., Watanabe H., Mori Y, Kaneko K. and Toh S., J. Crystal Growth, 260, 118 (2004).
• 11. Miao L., Tanemura S., Watanabe H., Toh S. and Kaneko K., Appl. Surf. Sci.., 244, 412 (2005).
• 12. Umebayashi T., Yamaki T., Yamamoto S., Miyashita A., Tanaka S., Sumita T. and Asai K., J. Appl. Phys., 93(9), 5156 (2003).
• 13. Zhang Q., Wang J., Yin S., Sato T. and Saito F., J. Am. Ceram. Soc., 87(6), 1161 (2004).
• 14. Gómez R., López T., Ortiz-Islas E., Navarrete J., Sanchez E., Tzompanztzi F. and Bokhimi X., J. Mol. Catal., A: Chem., 193, 217 (2003).
• 15. Ohno T., Akiyoshi M., Umebayashi T, Asai K., Mitsui T. and Matsumura M., Appl. Catal., A: General, 265,115(2004).
• 16. López T, Gómez R., Pecchi G., Reyes R, Bokhimi X. and Navaro O., Mater. Lett., 40, 59 (1999).