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https://hdl.handle.net/20.500.13091/511
Title: | Visible light active heterostructured photocatalyst system based on CuO plate-like particles and SnO2 nanofibers | Authors: | Dursun, Sami Kaya, İsmail Cihan Kocabaş, Mustafa Akyıldız, Hasan Kalem, Volkan |
Keywords: | Cuo Electrospinning Photocatalysis P-N Heterojunctions Sno2 P-N Heterojunction Nanocomposite Degradation Uv Nanostructures Performance Decomposition Adsorption Dioxide Oxide |
Publisher: | WILEY | Abstract: | In 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. | URI: | https://doi.org/10.1111/ijac.13467 https://hdl.handle.net/20.500.13091/511 |
ISSN: | 1546-542X 1744-7402 |
Appears in Collections: | Mühendislik ve Doğa Bilimleri Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collections WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections |
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Int J Applied Ceramic Tech - 2020 - Dursun - Visible light active heterostructured photocatalyst system based on CuO.pdf Until 2030-01-01 | 2.38 MB | Adobe PDF | View/Open Request a copy |
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