Preparation and Characterization of Fe3+-Doped TiO2/Diatomite Composite

Lu Sun; Jun Xiong Lin; Lan Wang; Kai Xin Song

doi:10.4028/www.scientific.net/AMM.268-270.15

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 268-270Preparation and Characterization of Fe3+-Doped...

Preparation and Characterization of Fe³⁺-Doped TiO₂/Diatomite Composite

Abstract:

Fe3+-doped TiO2/diatomite composite photocatalyst were prepared by sol-gel method with titanium isopropoxide used as precursor material. The samples were characterized by SEM, XRD, XPS, BET surface area analysis and UV-Vis techniques. The results showed that the optimum concentration of Fe3+ in the composite catalyst was 0.2wt% when the quantity of TiO2 loaded on the diatomite was 30.3wt%. Compared with the un-doped photocatalyst, the Fe3+-doped sample exhibited red shifts of absorption edge and significant enhancement of light absorption at 400～600 nm.

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Periodical:

Applied Mechanics and Materials (Volumes 268-270)

Pages:

15-18

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.268-270.15

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Online since:

December 2012

Authors:

Lu Sun, Jun Xiong Lin, Lan Wang, Kai Xin Song

Keywords:

Diatomite, Iron Ion Doping, Photocatalyst, TiO₂

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