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Journal of the Mexican Chemical Society
versión impresa ISSN 1870-249X
Resumen
MUSSA, Zainab Haider; AL-QAIM, Fouad Fadhil; YUZIR, Ali y SHAMELI, Kamyar. Photocatalytic Removal of Malachite Green and Brilliant Blue Dyes from its Aqueous Solution: A Case Study of Factorial Experimental Design. J. Mex. Chem. Soc [online]. 2021, vol.65, n.2, pp.247-255. Epub 04-Jun-2021. ISSN 1870-249X. https://doi.org/10.29356/jmcs.v65i2.1356.
In this present study, the investigation of the photocatalytic removal of malachite green and brilliant blue dyes from their aqueous solution using photocatalytic oxidation process was provided. The application of factorial experimental design for the analysis the results was the main objective in the present study. The photocatalytic removal of Malachite Green (MG) and Brilliant Blue (BB) dyes was carried out in aqueous solutions containing the dye and suspended of ZnO upon UV irradiation (high pressure mercury lamp Radium 125 W). The effect of different factors such as initial dye concentration, sample volume and treatment time was taken in account. All samples of MG and BB have been analysed at 617 and 620 nm, respectively. The linearity ranged between 5 and 50 mg/L for MG dye while it was ranged between 20 and 200 mg/L for BB dye. The linear regression, R2, was more than 0.995 for both dyes. The results revealed that factorial experimental design analysis has given a better indication to investigate the effects of factors. It was observed that the most of factors are significant for both dyes. Initial concentration and treatment time factors were the most significant factors for MG and BB dyes, respectively according to pareto chart.
Palabras llave : Malachite green dye; brilliant blue dye; factorial experimental design; photocatalytic process.