Abstract
This study focused on the photocatalytic degradation of methylene blue (MB) under ultraviolet light irradiation. The photocatalyst used for methylene blue degradation was the composite of titanium dioxide and graphene, synthesized using the wet-impregnation method. The composition of TiO2/graphene was varied into three different mass ratios to characterize the composite further and identify the best photocatalyst for optimization. For each mass ratio, three affecting parameters, which were photocatalyst dosage, initial MB concentration and irradiation time, were employed to investigate the effects of degradation efficiency. Then, the statistical analysis for the photocatalytic degradation of MB using the most efficient TiO2/graphene photocatalyst was performed by utilizing the Response Surface Methodology.
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