Structure and photocatalytic properties of sintered TiO2 nanotube arrays

Vujancević, Jelena; Bjelajac, Andjelika; Cirković, Jovana; Pavlović, Vera P.; Horvath, Endre; Forro, Laszlo; Vlahović, Branislav; Mitrić, Miodrag; Janacković, Djordje; Pavlović, Vladimir

doi:10.2298/SOS1801039V

2018

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Authors

Vujancević, Jelena

Bjelajac, Andjelika
Cirković, Jovana
Pavlović, Vera P.

Horvath, Endre
Forro, Laszlo
Vlahović, Branislav
Mitrić, Miodrag

Janacković, Djordje
Pavlović, Vladimir

Article (Published version)

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Abstract

One-dimensional (1D) TiO2 nanotubes perpendicular to the substrate were obtained by electrochemical oxidation of titanium foil in an acid electrolyte. In order to alter the crystallinity and the morphology of films the as-anodized amorphous TiO2 nanotube films were sintered at elevated temperatures. The evolution of the morphology was visualized via scanning electron microscopy (SEM), while the crystalline structure was investigated by Xray diffraction (XRD) and Raman spectroscopy. The chemical composition was studied by Xray photoelectron spectroscopy (XPS). The effects of crystallinity and morphology of TiO2 nanotube (NTs) films on photocatalytic degradation of methyl orange (MO) in an aqueous solution under UV light irradiation were also investigated. The TiO2 nanotubes sintered at 650 degrees C for 30 min had the highest degree of crystallinity and exhibited the best photocatalytic activity among the studied TiO2 nanotube films.

Keywords:

Titanium dioxide / Anodization / Sintering / Crystal phase / Photocatalysis

Source:
Science of Sintering, 2018, 50, 1, 39-50

Publisher:

Međunarodni Institut za nauku o sinterovanju, Beograd

Funding / projects:

NSF CRESTNational Science Foundation (NSF)NSF- Directorate for Education & Human Resources (EHR) [HRD-0833184]
NASANational Aeronautics & Space Administration (NASA) [NNX09AV07A]
Swiss Contribution [SH/7/2/20]
AIT grant
Zeno-Karl Schindler foundation
MBR Global Water Initiatives
[NSF-PREM1523617]
Directed synthesis, structure and properties of multifunctional materials (RS-172057)
Synthesis, processing and applications of nanostructured multifunctional materials with defined properties (RS-45019)

DOI: 10.2298/SOS1801039V

ISSN: 0350-820X

WoS: 000429909100004

Scopus: 2-s2.0-85053939304

[ Google Scholar ]


	11
	9

TY  - JOUR
AU  - Vujancević, Jelena
AU  - Bjelajac, Andjelika
AU  - Cirković, Jovana
AU  - Pavlović, Vera P.
AU  - Horvath, Endre
AU  - Forro, Laszlo
AU  - Vlahović, Branislav
AU  - Mitrić, Miodrag
AU  - Janacković, Djordje
AU  - Pavlović, Vladimir
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4714
AB  - One-dimensional (1D) TiO2 nanotubes perpendicular to the substrate were obtained by electrochemical oxidation of titanium foil in an acid electrolyte. In order to alter the crystallinity and the morphology of films the as-anodized amorphous TiO2 nanotube films were sintered at elevated temperatures. The evolution of the morphology was visualized via scanning electron microscopy (SEM), while the crystalline structure was investigated by Xray diffraction (XRD) and Raman spectroscopy. The chemical composition was studied by Xray photoelectron spectroscopy (XPS). The effects of crystallinity and morphology of TiO2 nanotube (NTs) films on photocatalytic degradation of methyl orange (MO) in an aqueous solution under UV light irradiation were also investigated. The TiO2 nanotubes sintered at 650 degrees C for 30 min had the highest degree of crystallinity and exhibited the best photocatalytic activity among the studied TiO2 nanotube films.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Structure and photocatalytic properties of sintered TiO2 nanotube arrays
EP  - 50
IS  - 1
SP  - 39
VL  - 50
DO  - 10.2298/SOS1801039V
ER  -

@article{
author = "Vujancević, Jelena and Bjelajac, Andjelika and Cirković, Jovana and Pavlović, Vera P. and Horvath, Endre and Forro, Laszlo and Vlahović, Branislav and Mitrić, Miodrag and Janacković, Djordje and Pavlović, Vladimir",
year = "2018",
abstract = "One-dimensional (1D) TiO2 nanotubes perpendicular to the substrate were obtained by electrochemical oxidation of titanium foil in an acid electrolyte. In order to alter the crystallinity and the morphology of films the as-anodized amorphous TiO2 nanotube films were sintered at elevated temperatures. The evolution of the morphology was visualized via scanning electron microscopy (SEM), while the crystalline structure was investigated by Xray diffraction (XRD) and Raman spectroscopy. The chemical composition was studied by Xray photoelectron spectroscopy (XPS). The effects of crystallinity and morphology of TiO2 nanotube (NTs) films on photocatalytic degradation of methyl orange (MO) in an aqueous solution under UV light irradiation were also investigated. The TiO2 nanotubes sintered at 650 degrees C for 30 min had the highest degree of crystallinity and exhibited the best photocatalytic activity among the studied TiO2 nanotube films.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Structure and photocatalytic properties of sintered TiO2 nanotube arrays",
pages = "50-39",
number = "1",
volume = "50",
doi = "10.2298/SOS1801039V"
}

Vujancević, J., Bjelajac, A., Cirković, J., Pavlović, V. P., Horvath, E., Forro, L., Vlahović, B., Mitrić, M., Janacković, D.,& Pavlović, V.. (2018). Structure and photocatalytic properties of sintered TiO2 nanotube arrays. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 50(1), 39-50.
https://doi.org/10.2298/SOS1801039V

Vujancević J, Bjelajac A, Cirković J, Pavlović VP, Horvath E, Forro L, Vlahović B, Mitrić M, Janacković D, Pavlović V. Structure and photocatalytic properties of sintered TiO2 nanotube arrays. in Science of Sintering. 2018;50(1):39-50.
doi:10.2298/SOS1801039V .

Vujancević, Jelena, Bjelajac, Andjelika, Cirković, Jovana, Pavlović, Vera P., Horvath, Endre, Forro, Laszlo, Vlahović, Branislav, Mitrić, Miodrag, Janacković, Djordje, Pavlović, Vladimir, "Structure and photocatalytic properties of sintered TiO2 nanotube arrays" in Science of Sintering, 50, no. 1 (2018):39-50,
https://doi.org/10.2298/SOS1801039V . .