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Journal of Inorganic Materials

Journal of Inorganic Materials >

2006 , Vol. 21 >Issue 5: 1268 - 1272

DOI: https://doi.org/10.3724/SP.J.1077.2006.01268

Research Paper

Preparation, Characterization and Photocatalytic Activity of Mesoporous TiO2-SiO2 Composite Doped with Platinum

  • ZHANG Feng ,
  • ZHANG Xin
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  • 1. Material Department of Yan Cheng Institute of Technology, Yancheng 224003, China; 2. Chemistry Department of Shantou University, Shantou 515063, China

Received date: 2005-09-25

  Revised date: 2006-01-03

  Online published: 2006-09-20

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Abstract

Titania-silica mesoporous materials were synthesized by the improved homogeneous precipitation method with tetraethyl silicate and titanium isopropoxide as precursors and CTAB as the structure-directing agent. The materials were characterized by XRD, FT-IR, XPS, nitrogen sorption and so on. The mesoporous composite with Ti/Si molar ratio of 1/2 shows a narrow distributing pore diameter and large special surface area of 609m2/g. Compared with pure nano-TiO2 particles at the same titania loading, the composite exhibits higher photocatalytic activity in the degradation of methyl orange. The
photocatalytic activity is greatly improved by doping platinum with an ppropriate loading.

Key words： Pt/TiO2-SiO2; homogeneous precipitation method; mesoporous material; photocatalysis

Cite this article

ZHANG Feng , ZHANG Xin . Preparation, Characterization and Photocatalytic Activity of Mesoporous TiO2-SiO2 Composite Doped with Platinum[J]. Journal of Inorganic Materials, 2006 , 21(5) : 1268 -1272 . DOI: 10.3724/SP.J.1077.2006.01268

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