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Photocatalytic Decolourisation of Textile Azo Dyes

Authors: Miranda T. M. | Soares G. M. B. | Campos A. M. F. O. | Kaja Martin | Hrdina Radim | Machalický Oldřich

Year: 2003

Type of publication: ostatní - přednáška nebo poster

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Language	Name	Abstract	Keywords
cze
eng	Photocatalytic Decolourisation of Textile Azo Dyes	Four model dyes were synthesized using classical preparative techniques. They represent the molecular structures frequently used in the production of industrial textile mordant dyes. Dyes decolourisation was developed in a lab-scale thin film photoreactor equiped with a white lamp and quartz tube, in the presence of different semiconductors, such as TiO2, ZnO and Fe2O3. The quantum yields of photochemical degradation were determined. The contribution of this photocatalytic process to the textile wastewater decolourisation will be discussed.	Mordant dyes, Photocatalytic treatment, Oxidation of dyes, Quantum yield, Decolouration, Actinometry, Polychromatic irradiation