Shi Liyi, Li Chunzhong, Gu Hongchen, Fang Dingye. Morphological Structure and Photocatalytic Activities of SnO2-TiO2 Composite Particles[J]. Chinese Journal of Chemical Physics , 2000, 13(3): 336-341. doi: 10.1088/1674-0068/13/3/336-341
Citation: Shi Liyi, Li Chunzhong, Gu Hongchen, Fang Dingye. Morphological Structure and Photocatalytic Activities of SnO2-TiO2 Composite Particles[J]. Chinese Journal of Chemical Physics , 2000, 13(3): 336-341. doi: 10.1088/1674-0068/13/3/336-341

Morphological Structure and Photocatalytic Activities of SnO2-TiO2 Composite Particles

doi: 10.1088/1674-0068/13/3/336-341
  • Received Date: 1999-08-05
  • Ultrafine titania particles were prepared by gas-phase oxidation of titanium tetrachloride in a high temperature tubular gas-phase reactor.The homogeneous precipitation method was used to prepare SnO2-TiO2 composite particles.The composite particles were characterized by TEM,EDS,XRD and BET surface area.The synthesized composite particles,pure ultrafine TiO2,commercial TiO2,and pure SnO2 were employed for photocatalytic degradation of azo dye active red X-3B in aerated solution.The result showed that a rapid and decolorization of the azo dye was achieved,and the photoactivity of the composite particles was higher than that of the pure ultrafine TiO2 and commercial TiO2,and the optimum loading of SnO2 on TiO2 is 15.3%.The enhanced degradation rate of X-3B using SnO2-TiO2 composite particles was attributed to increased charge separation in these systems.
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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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Morphological Structure and Photocatalytic Activities of SnO2-TiO2 Composite Particles

doi: 10.1088/1674-0068/13/3/336-341

Abstract: Ultrafine titania particles were prepared by gas-phase oxidation of titanium tetrachloride in a high temperature tubular gas-phase reactor.The homogeneous precipitation method was used to prepare SnO2-TiO2 composite particles.The composite particles were characterized by TEM,EDS,XRD and BET surface area.The synthesized composite particles,pure ultrafine TiO2,commercial TiO2,and pure SnO2 were employed for photocatalytic degradation of azo dye active red X-3B in aerated solution.The result showed that a rapid and decolorization of the azo dye was achieved,and the photoactivity of the composite particles was higher than that of the pure ultrafine TiO2 and commercial TiO2,and the optimum loading of SnO2 on TiO2 is 15.3%.The enhanced degradation rate of X-3B using SnO2-TiO2 composite particles was attributed to increased charge separation in these systems.

Shi Liyi, Li Chunzhong, Gu Hongchen, Fang Dingye. Morphological Structure and Photocatalytic Activities of SnO2-TiO2 Composite Particles[J]. Chinese Journal of Chemical Physics , 2000, 13(3): 336-341. doi: 10.1088/1674-0068/13/3/336-341
Citation: Shi Liyi, Li Chunzhong, Gu Hongchen, Fang Dingye. Morphological Structure and Photocatalytic Activities of SnO2-TiO2 Composite Particles[J]. Chinese Journal of Chemical Physics , 2000, 13(3): 336-341. doi: 10.1088/1674-0068/13/3/336-341

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