Journal of Environmental Protection

Volume 4, Issue 8 (August 2013)

ISSN Print: 2152-2197   ISSN Online: 2152-2219

Google-based Impact Factor: 1.42  Citations  

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

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DOI: 10.4236/jep.2013.48089    3,633 Downloads   5,401 Views  Citations

ABSTRACT

Heterogeneous photocatalysis is an advanced oxidation process (AOP), which can be successfully used to oxidize many organic pollutants present in aqueous systems. This research studied the photocatalytic degradation of C. I. Basic Blue 66 (BB 66) in the presence of TiO2 P-25 Degussa as a photocatalyst. The influence of various parameters, such as mass of catalyst, initial concentration of dye and pH on the degradation process was examined. The degradation of the dye followed a pseudo-first-order kinetics according to the Langmuir-Hinshelwood model and decolourization was achieved within 80 min of light exposure. The mineralization of organic carbon was also evaluated by measuring the dissolved organic carbon (DOC) of the dye solutions.

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Giwa, A. , Nkeonye, P. , Bello, K. and Kolawole, E. (2013) Decolourization and Mineralization of Aqueous Solution Containing C. I. Basic Blue 66 in the Presence of Titanium Dioxide. Journal of Environmental Protection, 4, 766-771. doi: 10.4236/jep.2013.48089.

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