Photocatalytic anthraquinones

A similar heterogeneous photocatalytic system was applied for the study of the decomposition of the anthraquinone dye, Acid blue 25 (AB25). The chemical structure of the dye and those of the first intermediates tentatively identified by HPLC-MS are shown in Fig. 3.55. RP-HPLC-DAD analysis of AB25 was carried out in a C4 column (250 X 4 mm i.d. particle size 5 //m) at ambient temperature. The isocratic mobile phase was composed of ACN (solvent A)-water (pH adjusted to 4.5 with acetic acid and ammonium acetate) (42 58, v/v). 

I. Bouzaida, C. Ferronato, J.M. Chovelon, M.E. Rammah and J.M. Herrmann, Heterogeneous photocatalytic degradation of the anthraquinone dye, Acid Blue 25 (AB25) a kinetic approach. J. Photochem. Photobiol.A Chem., 168 (2004) 23-30. 

Ghezzar, M. R., Abdehnalek, R, Belhadj, M., Benderdouche, N., Addou, A. (2007). Gliding arc plasma assisted photocatalytic degradation of anthraquinonic acid green 25 in solution with Ti02. Applied Catalysis B Environmental, 72, 304—313. 

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