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Citation: SHI Zai-Feng, SONG Xue-Fang, LI Juan. Synthesis of Fe³⁺-doped Nanosized TiO₂ Photocatalyst with Sol-gel Based Self-propagating High-temperature Synthesis Process[J]. Chinese Journal of Applied Chemistry, ;2010, 27(10): 1177-1181. doi: 10.3724/SP.J.1095.2010.90804 shu

Synthesis of Fe³⁺-doped Nanosized TiO₂ Photocatalyst with Sol-gel Based Self-propagating High-temperature Synthesis Process

School of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158

Received Date: 2 December 2009
Revised Date: 5 March 2010

A Fe³⁺-doped nanosized TiO₂ photocatalyst was synthesized from a sol-gel based self-propagating high-temperature synthesis process(SHS) with TiCl₄ as the raw material.Its photocatalytic activity was studied by probing the degradation of methylene blue(MB) under different light irradiations including sunlight,low and high pressure mercury lamps.XRD and SEM results indicate that the as-prepared nanoscale TiO₂ powder is a porous anatase material after SHS at 350℃ and heat-treatment at 500℃.The optimal precursor molar ratio of n(Ti):n(citric acid):n(NH₄NO₃) is 1:3:5,the particle size is~20 nm.Experimental results show that the highest photocatalytic activity of Fe³⁺-doped TiO₂ could be achieved when the molar ratio of Fe³⁺ to TiO₂is 0.02%.Removing rate of MB was 96.1% with Fe³⁺-doped TiO₂ as catalyst and sunlight as light source,which is 1.78 times of that of pure TiO₂.
- sol-gel based self-propagating high-temperature synthesis process,
- Fe₃₊-doped,
- TiO₂,
- photocatalysis
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Synthesis of Fe3+-doped Nanosized TiO2 Photocatalyst with Sol-gel Based Self-propagating High-temperature Synthesis Process

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通讯作者: 陈斌, bchen63@163.com

Synthesis of Fe³⁺-doped Nanosized TiO₂ Photocatalyst with Sol-gel Based Self-propagating High-temperature Synthesis Process