Structure and photocatalytic properties of sintered TiO2 nanotube arrays
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 temp...
Main Authors: | , , , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
International Institute for the Science of Sintering, Beograd
2018-01-01
|
Series: | Science of Sintering |
Subjects: | |
Online Access: | http://www.doiserbia.nb.rs/img/doi/0350-820X/2018/0350-820X1801039V.pdf |
id |
doaj-e2a3a356ec9d4db6b55c7964e868b76a |
---|---|
record_format |
Article |
spelling |
doaj-e2a3a356ec9d4db6b55c7964e868b76a2020-11-25T01:57:41ZengInternational Institute for the Science of Sintering, BeogradScience of Sintering0350-820X1820-74132018-01-01501395010.2298/SOS1801039V0350-820X1801039VStructure and photocatalytic properties of sintered TiO2 nanotube arraysVujančević Jelena0Bjelajac Anđelika1Ćirković Jovana2Pavlović Vera3Horvath Endre4Forró László5Vlahović Branislav6Mitrić Miodrag7Janaćković Đorđe8Pavlović Vladimir9Institute of Technical Science of SASA, BelgradeInnovation Center of the Faculty of Technology and Metallurgy, BelgradeInstitute for Multidisciplinary Research, BelgradeFaculty of Mechanical Engineering, BelgradeÉcole Polytechnique Fédérale de Lausanne, Laboratory of Physics of Complex Matter (LPMC), Lausanne, SwitzerlandÉcole Polytechnique Fédérale de Lausanne, Laboratory of Physics of Complex Matter (LPMC), Lausanne, SwitzerlandNorth Carolina Central University, Department of Physics, North Carolina, USA + NASA University Research Center for Aerospace Device Research and Education and NSF Centre of Research Excellence in Science and Technology Computational Center for FundamentaVinča Institute of Nuclear Sciences, BelgradeFaculty of Technology and Metallurgy, BelgradeInstitute of Technical Science of SASA, BelgradeOne-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 X-ray diffraction (XRD) and Raman spectroscopy. The chemical composition was studied by X-ray 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°C for 30 min had the highest degree of crystallinity and exhibited the best photocatalytic activity among the studied TiO2 nanotube films. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. OI 172057 and Grant no. III 45019]http://www.doiserbia.nb.rs/img/doi/0350-820X/2018/0350-820X1801039V.pdftitanium dioxideanodizationsinteringcrystal phasephotocatalysis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Vujančević Jelena Bjelajac Anđelika Ćirković Jovana Pavlović Vera Horvath Endre Forró László Vlahović Branislav Mitrić Miodrag Janaćković Đorđe Pavlović Vladimir |
spellingShingle |
Vujančević Jelena Bjelajac Anđelika Ćirković Jovana Pavlović Vera Horvath Endre Forró László Vlahović Branislav Mitrić Miodrag Janaćković Đorđe Pavlović Vladimir Structure and photocatalytic properties of sintered TiO2 nanotube arrays Science of Sintering titanium dioxide anodization sintering crystal phase photocatalysis |
author_facet |
Vujančević Jelena Bjelajac Anđelika Ćirković Jovana Pavlović Vera Horvath Endre Forró László Vlahović Branislav Mitrić Miodrag Janaćković Đorđe Pavlović Vladimir |
author_sort |
Vujančević Jelena |
title |
Structure and photocatalytic properties of sintered TiO2 nanotube arrays |
title_short |
Structure and photocatalytic properties of sintered TiO2 nanotube arrays |
title_full |
Structure and photocatalytic properties of sintered TiO2 nanotube arrays |
title_fullStr |
Structure and photocatalytic properties of sintered TiO2 nanotube arrays |
title_full_unstemmed |
Structure and photocatalytic properties of sintered TiO2 nanotube arrays |
title_sort |
structure and photocatalytic properties of sintered tio2 nanotube arrays |
publisher |
International Institute for the Science of Sintering, Beograd |
series |
Science of Sintering |
issn |
0350-820X 1820-7413 |
publishDate |
2018-01-01 |
description |
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 X-ray diffraction
(XRD) and Raman spectroscopy. The chemical composition was studied by X-ray
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°C for 30 min had the
highest degree of crystallinity and exhibited the best photocatalytic
activity among the studied TiO2 nanotube films. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. OI 172057 and Grant no. III
45019] |
topic |
titanium dioxide anodization sintering crystal phase photocatalysis |
url |
http://www.doiserbia.nb.rs/img/doi/0350-820X/2018/0350-820X1801039V.pdf |
work_keys_str_mv |
AT vujancevicjelena structureandphotocatalyticpropertiesofsinteredtio2nanotubearrays AT bjelajacanđelika structureandphotocatalyticpropertiesofsinteredtio2nanotubearrays AT cirkovicjovana structureandphotocatalyticpropertiesofsinteredtio2nanotubearrays AT pavlovicvera structureandphotocatalyticpropertiesofsinteredtio2nanotubearrays AT horvathendre structureandphotocatalyticpropertiesofsinteredtio2nanotubearrays AT forrolaszlo structureandphotocatalyticpropertiesofsinteredtio2nanotubearrays AT vlahovicbranislav structureandphotocatalyticpropertiesofsinteredtio2nanotubearrays AT mitricmiodrag structureandphotocatalyticpropertiesofsinteredtio2nanotubearrays AT janackovicđorđe structureandphotocatalyticpropertiesofsinteredtio2nanotubearrays AT pavlovicvladimir structureandphotocatalyticpropertiesofsinteredtio2nanotubearrays |
_version_ |
1724973255735902208 |