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Defective TiO2 Core-Shell Magnetic Photocatalyst Modified with Plasmonic Nanoparticles for Visible Light-Induced Photocatalytic Activity
Abstract
In the presented work, for the first time, the metal-modified defective titanium(IV) oxide nanoparticles with well-defined titanium vacancies, was successfully obtained. Introducing platinum and copper nanoparticles (NPs) as surface modifiers of defective d-TiO2 significantly increased the photocatalytic activity in both UV-Vis and Vis light ranges. Moreover, metal NPs deposition on the magnetic core allowed for the effective separation and reuse of the nanometer-sized photocatalyst from the suspension after the treatment process. The obtained Fe3O4@SiO2/d-TiO2-Pt/Cu photocatalysts were characterized by X-ray diffractometry (XRD) and specific surface area (BET) measurements, UV-Vis diffuse reflectance spectroscopy (DR-UV/Vis), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). Further, the mechanism of phenol degradation and the role of four oxidative species (h+, e−, •OH, and •O2−) in the studied photocatalytic process were investigated
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Authors (6)
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Siuzdak Katarzyna dr hab. inż
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Catalysts
no. 10,
pages 672 - 692,
ISSN: 2073-4344 - Language:
- English
- Publication year:
- 2020
- Bibliographic description:
- Bielan Z., Sulowska A., Dudziak S., Katarzyna S., Ryl J., Zielińska-Jurek A.: Defective TiO2 Core-Shell Magnetic Photocatalyst Modified with Plasmonic Nanoparticles for Visible Light-Induced Photocatalytic Activity// Catalysts -Vol. 10,iss. 6 (2020), s.672-692
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/catal10060672
- Sources of funding:
- Verified by:
- Gdańsk University of Technology
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