TiO2 supported on SiO2 photocatalysts prepared using ultrasonic-assisted sol-gel method

• Autorzy: Yang, X. L. , Liu, C. J. , Liu, Y. Q. , Li, X. , Xu, Y. H.
• Języki publikacji: EN

Abstrakty

EN

Guangdong TiO2-SiO2 (TiO2 supported on SiO2) photocatalysts were prepared using an ultrasonic-assisted sol-gel method. These photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR) and photoluminescence spectra (PL). Their photocatalytic activities were investigated by the method of methyl orange oxidation. It was found that the photocatalytic activity of TiO2-SiO2 was optimal when the molar ratio of hexadecyl trimethyl ammonium bromide to titanium butoxide was 1:10. The average crystallite size of TiO2-SiO2 was smaller than that prepared by the stirring method. Furthermore, for pure anatase phase samples, it was shown that the lower the photoluminescence intensity, the higher the photocatalytic activity.

Słowa kluczowe

EN

TiO2-SiO2; ultrasonic assisted; X-ray diffraction; photocatalytic property

• Czasopismo: Materials Science Poland
• Rocznik: 2011
• Tom: Vol. 29, No. 3
• Strony: 189--194
• Opis fizyczny: Bibliogr. 20 poz.

Twórcy

autor

Yang, X. L.

autor

Liu, C. J.

autor

Liu, Y. Q.

autor

Li, X.

autor

Xu, Y. H.

• Institute of Biomaterial, College of Science, South China Agricultural University, Guangzhou 510642,

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