Structural Phase Transformation and Photoluminescence of Zn-doped TiO2Nanopowders

Abstract

Abstract: Zn-doped titania nanopowders was prepared by sol-gel method. Influence of the dopant on the anatase-to-rutile phase transformation of TiO₂was investigated. It was found that the Zn dopant can effectively enhance the transformation by lowering the transition tem-perature. In addition, photoluminescence of gel derived TiO₂nanopowders under 228 nm light excition can be observed at room temperature, and its relative luminescence intensity can be increased by doping Zn into the titania nanopowders.

Key words: Titania nanopowders, Structural phase transformation, Zn additive, Photolumi-nescence, Sol-gel method

CLC Number:

O612.3

TrendMD:

YUAN Zhi-Hao, ZHANG Li-De . Structural Phase Transformation and Photoluminescence of Zn-doped TiO₂Nanopowders[J]. Chem. J. Chinese Universities, 1999, 20(7): 1007.

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Structural Phase Transformation and Photoluminescence of Zn-doped TiO₂Nanopowders

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