Investigating the photocatalytic degradation property of Pt, Pd and Ni nanoparticles-loaded TiO2 nanotubes powder prepared via rapid breakdown anodization

The present study was performed to investigate the photocatalytic efficiency of the titania (TiO2) nanotubes (NTs) powder prepared via rapid breakdown anodization sensitized individually with Ni, Pd and Pt metal nanoparticles (NPs). The TiO2 NTs powder had the length of 5-6 μm, with the outer diamet...

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Veröffentlicht in:Environmental technology. - 1993. - 39(2018), 23 vom: 23. Dez., Seite 2994-3005
1. Verfasser: Manovah David, T (VerfasserIn)
Weitere Verfasser: Wilson, P, Mahesh, R, Dhanavel, S, Hussain, Shamima, Jacob Melvin Boby, S, Stephen, A, Ramesh, C, Sagayaraj, P
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Titania nanotubes photodegradation powder rapid breakdown anodization
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520 |a The present study was performed to investigate the photocatalytic efficiency of the titania (TiO2) nanotubes (NTs) powder prepared via rapid breakdown anodization sensitized individually with Ni, Pd and Pt metal nanoparticles (NPs). The TiO2 NTs powder had the length of 5-6 μm, with the outer diameter between 20 and 25 nm and the wall thickness of 3-4 nm as observed in the scanning and transmission electron microscopes. The crystal structure analysis employing X-ray diffraction indicated the presence of Pt, Pd and Ni NPs in face-centered cubic phase over the anatase TiO2 NTs powder. The photocatalytic degradation of methylene blue (MB) was carried out with these photocatalysts. As a result, the performance of the 2 at.% Pt-loaded Pt-TiO2 NTs nanocomposite was determined to be superior on comparison to other photocatalysts under the current investigation. Fourier-transform infrared spectra confirmed the absence of any adsorption of MB or degraded products onto the surface of all the photocatalysts. The electron paramagnetic resonance analysis substantiated the e- transfer interaction from the conduction band of TiO2 NTs to Fermi level of Pt NPs has resulted in the better photodegradation process. The possible degradation mechanism using Pt-TiO2 NTs nanocomposites is discussed 
650 4 |a Journal Article 
650 4 |a Titania 
650 4 |a nanotubes 
650 4 |a photodegradation 
650 4 |a powder 
650 4 |a rapid breakdown anodization 
700 1 |a Wilson, P  |e verfasserin  |4 aut 
700 1 |a Mahesh, R  |e verfasserin  |4 aut 
700 1 |a Dhanavel, S  |e verfasserin  |4 aut 
700 1 |a Hussain, Shamima  |e verfasserin  |4 aut 
700 1 |a Jacob Melvin Boby, S  |e verfasserin  |4 aut 
700 1 |a Stephen, A  |e verfasserin  |4 aut 
700 1 |a Ramesh, C  |e verfasserin  |4 aut 
700 1 |a Sagayaraj, P  |e verfasserin  |4 aut 
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773 1 8 |g volume:39  |g year:2018  |g number:23  |g day:23  |g month:12  |g pages:2994-3005 
856 4 0 |u http://dx.doi.org/10.1080/09593330.2017.1371248  |3 Volltext 
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