Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13091/835
Title: Hydrothermally synthesized UV light active zinc stannate:tin oxide (ZTO: SnO2) nanocomposite photocatalysts for photocatalytic applications
Authors: Keles, Elif
Yıldırım, Mehmet
Öztürk, Teoman
Altıntaş Yıldırım, Özlem
Keywords: Zinc Stannate
Tin Oxide
Nanocomposite
Hydrothermal Method
Photocatalytic Activity
Reusable Stable Photocatalyst
Room-Temperature Synthesis
Zn2sno4 Nanoparticles
Sensing Properties
Methylene-Blue
Degradation
Performance
Photodegradation
Microstructures
Nanostructures
Vacancy
Publisher: ELSEVIER SCI LTD
Abstract: This study was carried out for the simple synthesis of zinc stannate (Zn2SnO4, ZTO): tin oxide (SnO2) nanocomposite photocatalyst in order to investigate the photodegradation of Rhodamine B (RhB) dye molecules under the UV light irradiation. For this purpose, nanocomposite photocatalysts were prepared via a low temperature hydrothermal method. Pure ZTO nanoparticles were also synthesized for the comparison purpose of the photocatalytic activity. Formation of the ZTO:SnO2 nanocomposites could be easily controlled by tuning of the hydrothermal reaction temperature. The structural properties of ZTO:SnO2 nanocomposites and ZTO nano-particles were schematically characterized by XRD, XPS and FTIR. Morphological investigation was performed via SEM and TEM. Band structure and optical properties were investigated with UV-Vis spectroscopy and PL analyses. It was found that ZTO:SnO2 nanocomposites keep hexagonal ZTO nanoparticles and SnO2 nanorods together and have more surface defects than that of the ZTO nanoparticles. The degradation of RhB dye molecules in the presence of ZTO:SnO2 nanocomposites reached to 62.0% degradation after first 60 min and 94.5% after 240 min. The photocatalytic rate constant of the ZTO:SnO2 nanocomposites (k = 0.0111 min(-1)) was two times higher than that of the pure ZTO nanoparticles (k = 0.00527 min(-1)). In addition, ZTO:SnO2 nanocomposites exhibited very high stability in the cycling degradation test with 90.1% RhB degradation even after ten times cycling run.
URI: https://doi.org/10.1016/j.mssp.2020.104959
https://hdl.handle.net/20.500.13091/835
ISSN: 1369-8001
1873-4081
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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