Author(s)

Abdulraheem Giwa, Peter Obinna Nkeonye, Kasali Ademola Bello, Kasali Ademola Kolawole

Department of Textile Science and Technology, Ahmadu Bello University, Zaria, Nigeria.

The nanophotocatalytic process using semiconducting oxides with a nanostructure is one of the technologies used for the destructive oxidation of organic compounds such as dyes. The photocatalytic oxidation of a textile dye—C. I. Basic Blue 41 (BB41) in aqueous solution was assessed by UV ray irradiation in the presence of TiO₂ nanoparticles. The effect of initial dye concentration, pH and TiO2 loading were investigated and the optimized conditions for maximum amount of degradation were determined. Analysis of the kinetics showed pseudo-first-order model. The mineralization of the dye was reported by measuring the initial and final chemical oxygen demand of the solution that was irradiated under optimized conditions.

Nanophotocatalysis; Textile; Dye; Wastewater; TiO₂; C. I. Basic Blue 41

A. Giwa, P. Nkeonye, K. Bello and K. Kolawole, "Photocatalytic Decolourization and Degradation of C. I. Basic Blue 41 Using TiO₂ Nanoparticles," Journal of Environmental Protection, Vol. 3 No. 9, 2012, pp. 1063-1069. doi: 10.4236/jep.2012.39124.