TiO2 films organofunctionalized with 2-aminothiazole ligand and adsorbed Pd(II) ions applied in the photocatalytic degradation of phenol in an aqueous medium
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Data
2007-05-07
Autores
Cristante, Valtair M.
Jorge, Sonia M. A.
Valente, Jose P. S.
Saeki, Margarida J.
Florentino, Ariovaldo O.
Padilha, Pedro M.
Título da Revista
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Título de Volume
Editor
Elsevier B.V.
Resumo
This paper describes the preparation of thin titanium films via sol-gel route and their subsequent chemical modification by anchoring with 2-aminothiazole ligand and Pd(II) ion sorption, aiming to maximize the photocatalytic activity. The material was characterized by diffuse reflectance infrared Fourier transform spectroscopy, ultraviolet and visible spectrometry, X-ray diffractometry, and scanning electronic microscopy. The amount of palladium adsorbed on the film's surface, determined by graphite furnace atomic absorption spectrometry, showed a value of 2.69 x 10(16) atoms CM-2. The photocatalytic tests indicated that the functionalization with 2-aminothiazole and the adsorption of palladium (II) were determinants in the semiconductor's enhanced photocatalytic activity. (c) 2007 Elsevier B.V. All rights reserved.
Descrição
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TiO2 films, photocatalysis, 2-aminothiazole, sensitizer
Como citar
Thin Solid Films. Lausanne: Elsevier B.V. Sa, v. 515, n. 13, p. 5334-5340, 2007.