Study of the highly ordered TiO2 nanotubes physical properties prepared with two-step anodization
Highly ordered hexagonal closely packed titanium dioxide nanotubes (TiO2 NTs) were successfully grown by a two-step anodization process. The TiO2 NTs were synthesized by electrochemical anodization of titanium foils in an ethylene glycol based electrolyte solution containing 0.3 wt% NH4F and 2 vol%...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2018-06-01
|
| Series: | Results in Physics |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379717325524 |
| _version_ | 1818777232664952832 |
|---|---|
| author | Negin Pishkar Mahmood Ghoranneviss Zohreh Ghorannevis Hossein Akbari |
| author_facet | Negin Pishkar Mahmood Ghoranneviss Zohreh Ghorannevis Hossein Akbari |
| author_sort | Negin Pishkar |
| collection | DOAJ |
| description | Highly ordered hexagonal closely packed titanium dioxide nanotubes (TiO2 NTs) were successfully grown by a two-step anodization process. The TiO2 NTs were synthesized by electrochemical anodization of titanium foils in an ethylene glycol based electrolyte solution containing 0.3 wt% NH4F and 2 vol% deionized (DI) water at constant potential (50 V) for 1 h at room temperature. Physical properties of the TiO2 NTs, which were prepared via one and two-step anodization, were investigated. Atomic Force Microscopy (AFM) analysis revealed that anodization and subsequently peeled off the TiO2 NTs caused to the periodic pattern on the Ti surface. In order To study the nanotubes morphology, Field Emission Scanning Electron Microscopy (FESEM) was used, which was revealed that the two-step anodization resulted highly ordered hexagonal TiO2 NTs. Crystal structures of the TiO2 NTs were mainly anatase, determined by X-ray diffraction analysis. Optical studies were performed by Diffuse Reflection Spectra (DRS) and Photoluminescence (PL) analysis showed that the band gap of TiO2 NTs prepared via two-step anodization was lower than the band gap of samples prepared by one-step anodization process. Keywords: TiO2 nanotubes, Anodization, Electrolyte, Band gap |
| first_indexed | 2024-12-18T11:25:34Z |
| format | Article |
| id | doaj.art-83b457b5fab949b992215a6ca4d721e0 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-12-18T11:25:34Z |
| publishDate | 2018-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-83b457b5fab949b992215a6ca4d721e02022-12-21T21:09:42ZengElsevierResults in Physics2211-37972018-06-01912461249Study of the highly ordered TiO2 nanotubes physical properties prepared with two-step anodizationNegin Pishkar0Mahmood Ghoranneviss1Zohreh Ghorannevis2Hossein Akbari3Department of Physics, Ardabil Branch, Islamic Azad University, Ardabil, IranDepartment of Physics, Science and Research Branch, Islamic Azad University, Tehran, Iran; Corresponding author.Department of Physics, Karaj Branch, Islamic Azad University, Karaj, IranDepartment of Physics, Ardabil Branch, Islamic Azad University, Ardabil, IranHighly ordered hexagonal closely packed titanium dioxide nanotubes (TiO2 NTs) were successfully grown by a two-step anodization process. The TiO2 NTs were synthesized by electrochemical anodization of titanium foils in an ethylene glycol based electrolyte solution containing 0.3 wt% NH4F and 2 vol% deionized (DI) water at constant potential (50 V) for 1 h at room temperature. Physical properties of the TiO2 NTs, which were prepared via one and two-step anodization, were investigated. Atomic Force Microscopy (AFM) analysis revealed that anodization and subsequently peeled off the TiO2 NTs caused to the periodic pattern on the Ti surface. In order To study the nanotubes morphology, Field Emission Scanning Electron Microscopy (FESEM) was used, which was revealed that the two-step anodization resulted highly ordered hexagonal TiO2 NTs. Crystal structures of the TiO2 NTs were mainly anatase, determined by X-ray diffraction analysis. Optical studies were performed by Diffuse Reflection Spectra (DRS) and Photoluminescence (PL) analysis showed that the band gap of TiO2 NTs prepared via two-step anodization was lower than the band gap of samples prepared by one-step anodization process. Keywords: TiO2 nanotubes, Anodization, Electrolyte, Band gaphttp://www.sciencedirect.com/science/article/pii/S2211379717325524 |
| spellingShingle | Negin Pishkar Mahmood Ghoranneviss Zohreh Ghorannevis Hossein Akbari Study of the highly ordered TiO2 nanotubes physical properties prepared with two-step anodization Results in Physics |
| title | Study of the highly ordered TiO2 nanotubes physical properties prepared with two-step anodization |
| title_full | Study of the highly ordered TiO2 nanotubes physical properties prepared with two-step anodization |
| title_fullStr | Study of the highly ordered TiO2 nanotubes physical properties prepared with two-step anodization |
| title_full_unstemmed | Study of the highly ordered TiO2 nanotubes physical properties prepared with two-step anodization |
| title_short | Study of the highly ordered TiO2 nanotubes physical properties prepared with two-step anodization |
| title_sort | study of the highly ordered tio2 nanotubes physical properties prepared with two step anodization |
| url | http://www.sciencedirect.com/science/article/pii/S2211379717325524 |
| work_keys_str_mv | AT neginpishkar studyofthehighlyorderedtio2nanotubesphysicalpropertiespreparedwithtwostepanodization AT mahmoodghoranneviss studyofthehighlyorderedtio2nanotubesphysicalpropertiespreparedwithtwostepanodization AT zohrehghorannevis studyofthehighlyorderedtio2nanotubesphysicalpropertiespreparedwithtwostepanodization AT hosseinakbari studyofthehighlyorderedtio2nanotubesphysicalpropertiespreparedwithtwostepanodization |