SYTHESIS AND VISIBLE RESPONSE ACTIVITY OF TiO2 COMPOSITE NANOPARTICLES

Acta Metall Sin

2008, Vol. 44

Issue (11): 1394-1398 DOI:

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SYTHESIS AND VISIBLE RESPONSE ACTIVITY OF TiO2 COMPOSITE NANOPARTICLES

东北大学

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. SYTHESIS AND VISIBLE RESPONSE ACTIVITY OF TiO2 COMPOSITE NANOPARTICLES. Acta Metall Sin, 2008, 44(11): 1394-1398 .

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Abstract

TiO2 composite nanoparticles were synthesized by adding iron salt and surfactant Cetyl trimethyl ammonium bromide (CTAB) into the sol-gel process of Tetrabutyl titanate (TBOT). The composite particles, whose absorption maximum was appeared in about 530nm, showed the photocatalytical activity toward Rhodamine B. The effect of Fe3+ mass on the structure and properties of composite materials was systematically studied. Some means such as TEM, XRD, TG-DTA and UV-Vis were used to character these particles. The results showed, that the Fe3+ iron was doped in the crystal lattice of TiO2 and the new bandwidth (Eg=1.37eV) was appeared. Because of that, the spectral response property of TiO2 composite materials was changed into visible light range.

Key words: TiO2 composite nanoparticles Fe3+ iron doped visible response photocatalysis

Received: 20 March 2008

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2008/V44/I11/1394

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