Please use this identifier to cite or link to this item: 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
Issue Date: 2020
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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