Decolourization and Mineralization of Aqueous Solution Containing C. I. Basic Blue 66 in the Presence of Titanium DioxideReport as inadecuate




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Heterogeneous photocatalysis is anadvanced oxidation process AOP, which can be successfully used to oxidizemany organic pollutants present in aqueous systems.This research studied the photocatalytic degradation of C. I. Basic Blue 66 BB66 in the presence of TiO2 P-25 Degussa as a photocatalyst. Theinfluence of various parameters, such as mass of catalyst, initialconcentration of dye and pH on the degradation process was examined. Thedegradation of the dye followed a pseudo-first-order kinetics according to theLangmuir-Hinshelwood modeland decolourization was achieved within 80 min of light exposure. Themineralization of organic carbon was also evaluated by measuring the dissolvedorganic carbon DOC of the dye solutions.



KEYWORDS

Photocatalysis; Azo Dyes; Titanium Dioxide

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A. Giwa, P. Nkeonye, K. Bello and E. Kolawole -Decolourization and Mineralization of Aqueous Solution Containing C. I. Basic Blue 66 in the Presence of Titanium Dioxide,- Journal of Environmental Protection, Vol. 4 No. 8, 2013, pp. 766-771. doi: 10.4236-jep.2013.48089.





Author: Abdulraheem Giwa, Peter Obinna Nkeonye, Kasali Ademola Bello, Emmanuel Ggadebo Kolawole

Source: http://www.scirp.org/



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