Cevik, M. SaitSahin, OmerBaytar, OrhanHoroz, SabitEkinci, Arzu2024-12-242024-12-2420211944-39941944-3986https://doi.org/10.5004/dwt.2021.26468https://hdl.handle.net/20.500.12604/7853To improve the photodegradation of methyl blue (MB) by ZnO under visible light irradiation, the sol-gel method was used to synthesize ZnO photocatalysts co-doped with Mg and supported on activated carbon (AC) with various properties. The photocatalysts synthesized were characterized in terms of their structure and optical properties. X-ray diffraction and UV-vis absorption spectra measurements were carried out to examine the structural and optical properties of photocatalysts. Such photocatalytic behaviors of photocatalysts preceded the order: Mg:ZnO/AC > ZnO/AC > ZnO. This consequence was ascribed to the small crystallite size, large surface area, the narrow bandgap of Mg:ZnO/AC photocatalyst. Besides, first-order kinetics accompanied the degradation of MB on photocatalysis. The active species (OH)-O-center dot and O-center dot(2)- performed more key roles in composite photocatalytic degradation of MB.eninfo:eu-repo/semantics/closedAccessActivated carbonCharacterizationDopingPhotocatalyticSynthesisArticle209212218Q4WOS:000651052700020Q32-s2.0-8509960554510.5004/dwt.2021.26468