Photosensitized decomposition of textile dyes on TiO2-Tytanpol A11 and TiO2-Degussa P25

• Autorzy: Zielińska B. , Morawski A. W. , Kaleńczuk R. J.
• Języki publikacji: EN

Abstrakty

EN

The photoassisted decomposition of five organic dyes (Reactive Red 198 (RR198), Reactive Black 5 (RB5), Acid Black 1 (AB1), Direct Green 99 (DG99) and Acid Blue 7 (AB7)) has been investigated in aqueous solution in the presence of two kinds of TiO2 photocatalysts: TiO2-Tytanpol A11 (,,Police" Chemical Factory, Poland) and TiO2-Degussa P25 (,,Degussa" Germany) and under the illumination by the Vis light. The results suggest that the value of the adsorption of the dyes on the photocatalyst surface is the controlling step of the photosensitized degradation of dyes. The A11 photocatalyst demonstrates higher activity than P25. This effect is diffrent from the one obtained under the UV illumination, where P25 shows a much higher activity. Additionally, it was investigated that for both phototocatalysts used the degree of dyes decomposition decreased with the increasing of the maximum absorption of the dyes.

Słowa kluczowe

EN

photosensitization; textile dyes; titanium dioxide

PL

fotosensybilizacja; sensybilizacja optyczna; barwniki włókiennicze; dwutlenek tytanu

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2006
• Tom: Vol. 8, nr 3
• Strony: 150--152
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Zielińska B.

autor

Morawski A. W.

autor

Kaleńczuk R. J.

• Institute of Chemical and Environment Engineering, Szczecin University of Technology, Pułaskiego 10, 70-322 Szczecin,

Bibliografia

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