DataVXScience of SinteringPaper
journal article·2018Open access

Structure and photocatalytic properties of sintered TiO2 nanotube arrays

Jelena Vujancevic, Andjelika Bjelajac, Jovana Cirkovic, Vera Pavlovic, Endre Horvath, László Forró, Branislav Vlahovic, Miodrag Mitric, Djordje Janackovic, Vladimir Pavlovic

Science of Sintering· Volume 50· Issue 1
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Source abstract

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 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.
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Research context

Energy storageCeramics & glassesNanomaterialsCatalysis & surfaces

OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Conducting polymers and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Technical Science of SASA, Belgrade

Innovation Center of the Faculty of Technology and Metallurgy, Belgrade

Institute for Multidisciplinary Research, Belgrade

Faculty of Mechanical Engineering, Belgrade

École Polytechnique Fédérale de Lausanne, Laboratory of Physics of Complex Matter (LPMC), Lausanne, Switzerland

North 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 Fundamenta

Vinča Institute of Nuclear Sciences, Belgrade

Faculty of Technology and Metallurgy, Belgrade

Funding

Ministry of Education, Science and Technological Development of the Republic of Serbia

References

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