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Citation: ZHANG Shu-Cui, JIANG Dong, TANG Tao, LI Jun-Hua, XU Yao. Synthesis and Photocatalytic Activity of Highly Dispersed TiO₂/SBA-15[J]. Acta Physico-Chimica Sinica, ;2010, 26(05): 1330-1336. doi: 10.3866/PKU.WHXB20100520 shu

Synthesis and Photocatalytic Activity of Highly Dispersed TiO₂/SBA-15

1.
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China; Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China

Received Date: 10 December 2009
Available Online: 31 March 2010

Highly dispersed TiO2/SBA-15 photocatalysts were successfully synthesized by solvothermal treatment using titanium n-butoxide (TB) and carboxylate-modified SBA-15 (COOH/SBA-15) as raw materials. The od dispersive carboxyl groups of COOH/SBA-15 coordinated with TB molecules to anchor them. After solvothermal treatment, the TB molecules were transformed into TiO2 nanoparticles and finally formed the TiO2/SBA-15 products. The products were calcined to improve the crystallization of TiO2 and to remove the organic compounds. As-obtained TiO2/SBA-15 photocatalysts were characterized by X-ray diffraction (XRD), nitrogen adsorption, Fourier transform infrared (FI-IR) spectroscopy, and transmission electron microscopy (TEM). Analytical results showed that the as-obtained TiO2/SBA-15 photocatalysts possessed a better mesoporous structure and a larger specific surface area. The highly crystalline anatase TiO2 nanocrystals dispersed well on the surface of SBA-15. RhodamineB (RhB), as a photodegradation target, was used to evaluate photocatalytic performance under UV light irradiation. The as-obtained TiO2/SBA-15 photocatalysts exhibited much better photocatalytic activity compared with the photocatalysts prepared by a post-synthesis impregnation method.
- Photocatalysis,
- Carboxylate-modified,
- TiO2,
- SBA-15,
- Solvothermal
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沈阳化工大学材料科学与工程学院沈阳 110142

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Synthesis and Photocatalytic Activity of Highly Dispersed TiO2/SBA-15

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通讯作者: 陈斌, bchen63@163.com

Synthesis and Photocatalytic Activity of Highly Dispersed TiO₂/SBA-15