Experimental and Theoretical Study on Transition Metal Ion Doped TiO2

Abstract:

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In this paper, TiO2 crystallines doped with transition metal ions have been prepared by sol-gel method. The UV-visible spectra indicated that the doping with transition metal ions (especially Cu2+, Mn2+ and Cr3+ ions) could effectively improve the absorption of TiO2 crystals in the visible-light range. The XRD results showed that the doping does not affect the anatase phase of TiO2. The band structure and the UV-vis absorption spectrum of Mn2+ ions doped-TiO2 were also calculated by DFT (density function theory) method, which indicated that the doping with transition metal ion could make the band gap of TiO2 smaller and a red shift in optical absorption.

Info:

Periodical:

Advanced Materials Research (Volumes 233-235)

Edited by:

Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He

Pages:

2219-2222

DOI:

10.4028/www.scientific.net/AMR.233-235.2219

Citation:

X. C. Zhong et al., "Experimental and Theoretical Study on Transition Metal Ion Doped TiO2", Advanced Materials Research, Vols. 233-235, pp. 2219-2222, 2011

Online since:

May 2011

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Price:

$35.00

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