Research Paper

Preparation and Photo Absorption Property of Coupled Semiconductor NiO-TiO2

  • WANG Xi-Tao ,
  • HE Zhong ,
  • ZHONG Shun-He
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  • College of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China

Received date: 2008-06-24

  Revised date: 2008-09-07

  Online published: 2009-03-20

Abstract

NiO-TiO2 coupled semiconductors were synthesized by organic templates method.Their pore distribution, crystal structure,surface composition and photo absorption properties were investigated by techniques of N2 adsorptiondesorption, XRD, TPR, TEM and UV-Vis DRS. The results show that the NiO-TiO2 coupled semiconductors prepared by organic templates exist in nanotube or nanobelt with mesporous structure, and the BET surface area is higher than 100m2/g. The NiO particles disperse well on the surface of TiO2, and the strong interaction between NiO and TiO2 results in the formation of NiTiO3. The p-n couple effect of NiO and TiO2 extends distinctly the photo absorption field and decreases the Eg from 3.82eV to 3.49eV when the addition amout of NiO is increased from 2% to 10%.

Cite this article

WANG Xi-Tao , HE Zhong , ZHONG Shun-He . Preparation and Photo Absorption Property of Coupled Semiconductor NiO-TiO2[J]. Journal of Inorganic Materials, 2009 , 24(2) : 215 -220 . DOI: 10.3724/SP.J.1077.2009.00215

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