Shift the Photocatalytic Activity of P25 TiO2 Nanoparticles toward the Visible Region upon Surface Modification with Organic Hybrid of Phosphotungstate

In this study, a visible-light-driven P25 TiO2 was prepared upon surface modification with a colored organic hybrid of phosphotungstic acid that makes titanium dioxide suitable for photocatalytic degradation of organic pollutants under visible and sunlight irradiation. Visible shifting of the photoc...

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Bibliographic Details
Published in:International journal of photoenergy 2020-01, Vol.2020 (2020), p.1-8
Main Authors: Taghdiri, Mehdi, Dadari Doolabi, Shahrban
Format: Article
Language:English
Subjects:
Adsorption
Aluminum oxide
Aqueous solutions
Catalytic activity
Decoloring
Experiments
Graphene
Irradiation
Methylene blue
Nanoparticles
Photocatalysis
Photodegradation
Pollutants
Rhodamine
Scanning electron microscopy
Sunlight
Titanium dioxide
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Summary:In this study, a visible-light-driven P25 TiO2 was prepared upon surface modification with a colored organic hybrid of phosphotungstic acid that makes titanium dioxide suitable for photocatalytic degradation of organic pollutants under visible and sunlight irradiation. Visible shifting of the photocatalytic activity of surface-modified TiO2 was examined by studying the decolorization of methylene blue (MB) and rhodamine B (RhB). The results show that colored TiO2 is, unlike bare TiO2, a good photocatalyst in the degradation of dyes under visible and sunlight irradiation. Surface-modified Al2O3 and reduced graphene oxide (RGO) with organic hybrid of phosphotungstate failed to degrade RhB under sunlight irradiation, which prove the role of TiO2 in the photochemical process.
ISSN:1110-662X
1687-529X
DOI:10.1155/2020/8870194