Dursun, SamiKaya, İsmail CihanKocabaş, MustafaAkyıldız, HasanKalem, Volkan2021-12-132021-12-1320201546-542X1744-7402https://doi.org/10.1111/ijac.13467https://hdl.handle.net/20.500.13091/511In this study, CuO-SnO2 p-n type heterostructures were produced and tested for the degradation of methylene blue and 4-nitrophenol under visible light irradiation. CuO particles were produced in plate-like morphology using hydrothermal synthesis. SnO2 nanofibers were obtained by electrospinning. Structural, morphological, optical and semiconducting property characterization of heterostructured CuO-SnO2 and individual phases were performed. The photocatalytic activity was found to change depending on the amount of CuO particles in heterostructured samples. Among others, the sample with 0.35 wt.% CuO-SnO2 showed the highest photocatalytic efficiency with a degradation rate constant 2 h(-1). Active specie scavenger tests revealed that the decomposition reaction occurs through direct oxidation mechanism by the holes in the valence band of SnO2 in pure samples whereas in CuO-SnO2 samples center dot O2- and center dot OH radicals also form and involve in the reactions. Further, the photocatalytic degradation mechanism was revealed using relative band potentials and p-n junctions of the heterostructured photocatalyst.eninfo:eu-repo/semantics/closedAccessCuoElectrospinningPhotocatalysisP-N HeterojunctionsSno2P-N HeterojunctionNanocompositeDegradationUvNanostructuresPerformanceDecompositionAdsorptionDioxideOxideArticle10.1111/ijac.134672-s2.0-85078668634