Surface Modification and Surface Structure of Pt/CdS Photocatalyst

Chinese Journal of Applied Chemistry ›› 1997, Vol. 0 ›› Issue (1): 98-100.

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Surface Modification and Surface Structure of Pt/CdS Photocatalyst

Zhang Huqin¹, Chen Kaixun¹, Jing Zhengsheng²

1. Department of Chemical Engineering, Northwest University, Xian 710069;
2. Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou

Received:1996-05-20 Revised:1996-09-28 Published:1997-02-10 Online:1997-02-10

Abstract

Abstract: Pt/CdS catalysts were treated at high temperature in nitrogen gas containing 1.30 g/m³ O₂. The surface composition and structure of catalysts were studied by XPS, XRD and TEM. Results show that a regular change in the Pt valence and CdS surface composition takes place with treating time. It is verified that low concentration oxygen has an action of modifying Pt/CdS surface.

Key words: photocatalyst, semiconductor, surface composition, surface modification

Zhang Huqin, Chen Kaixun, Jing Zhengsheng. Surface Modification and Surface Structure of Pt/CdS Photocatalyst[J]. Chinese Journal of Applied Chemistry, 1997, 0(1): 98-100.

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Surface Modification and Surface Structure of Pt/CdS Photocatalyst

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