Controlling morphological parameters of a nanotubular TiO2 coating layer prepared by anodic oxidation
A promising modification route to improve osseointegration of dental and medical titanium devices is a nanostructured titanium oxide coating layer in the form of self-ordered vertically aligned nanotubes (or nanotubular TiO _2 ). In this work, we report a detailed investigation of nanotubular TiO _2...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ab6f35 |
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| author | Elisa Marchezini Fernanda P Oliveira Rafael Lopes Tatiane Almeida Pedro L Gastelois Maximiliano D Martins |
| author_facet | Elisa Marchezini Fernanda P Oliveira Rafael Lopes Tatiane Almeida Pedro L Gastelois Maximiliano D Martins |
| author_sort | Elisa Marchezini |
| collection | DOAJ |
| description | A promising modification route to improve osseointegration of dental and medical titanium devices is a nanostructured titanium oxide coating layer in the form of self-ordered vertically aligned nanotubes (or nanotubular TiO _2 ). In this work, we report a detailed investigation of nanotubular TiO _2 coating layer on metallic Ti substrate prepared by anodic oxidation. The main goal was to determine an optimized and reproducible route to produce a nanotubular TiO _2 layer with homogenous morphology, narrow distribution and accurate control of the nanotube diameter. The influence of electrolyte temperature, anodizing time and applied voltage were studied, comparing three different electrolytes: 1.5 wt% HF, 0.5 wt% HF, and 0.5 wt% HF + 1 mol l ^−1 H _3 PO _4 . Samples were analyzed by SEM, EDS, FIB, and XPS techniques. The most favorable result was achieved by using 0.5 wt% HF + 1 mol l ^−1 H _3 PO _4 electrolyte, for anodizing time of about 90 min, temperature of 20 °C, and anodizing potential from 1 to 25 V. Using these parameters, a uniform self-organized nanotubular TiO _2 layer was prepared with a fine control of the nanotube diameter value over a wide range (10 to 100 nm). |
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| format | Article |
| id | doaj.art-939a16ce0e4f404a8dda041745f4c316 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:38:24Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-939a16ce0e4f404a8dda041745f4c3162023-08-09T16:06:07ZengIOP PublishingMaterials Research Express2053-15912020-01-017202501710.1088/2053-1591/ab6f35Controlling morphological parameters of a nanotubular TiO2 coating layer prepared by anodic oxidationElisa Marchezini0Fernanda P Oliveira1Rafael Lopes2Tatiane Almeida3Pedro L Gastelois4https://orcid.org/0000-0001-7849-5013Maximiliano D Martins5https://orcid.org/0000-0003-4010-8043Centro de Desenvolvimento da Tecnologia Nuclear, 31270-901, Belo Horizonte, BrazilCentro de Desenvolvimento da Tecnologia Nuclear, 31270-901, Belo Horizonte, BrazilCentro de Desenvolvimento da Tecnologia Nuclear, 31270-901, Belo Horizonte, Brazil; Universidade Federal dos Vales do Jequitinhonha e Mucuri , 39447-790, Janaúba, BrazilCentro de Desenvolvimento da Tecnologia Nuclear, 31270-901, Belo Horizonte, BrazilCentro de Desenvolvimento da Tecnologia Nuclear, 31270-901, Belo Horizonte, BrazilCentro de Desenvolvimento da Tecnologia Nuclear, 31270-901, Belo Horizonte, BrazilA promising modification route to improve osseointegration of dental and medical titanium devices is a nanostructured titanium oxide coating layer in the form of self-ordered vertically aligned nanotubes (or nanotubular TiO _2 ). In this work, we report a detailed investigation of nanotubular TiO _2 coating layer on metallic Ti substrate prepared by anodic oxidation. The main goal was to determine an optimized and reproducible route to produce a nanotubular TiO _2 layer with homogenous morphology, narrow distribution and accurate control of the nanotube diameter. The influence of electrolyte temperature, anodizing time and applied voltage were studied, comparing three different electrolytes: 1.5 wt% HF, 0.5 wt% HF, and 0.5 wt% HF + 1 mol l ^−1 H _3 PO _4 . Samples were analyzed by SEM, EDS, FIB, and XPS techniques. The most favorable result was achieved by using 0.5 wt% HF + 1 mol l ^−1 H _3 PO _4 electrolyte, for anodizing time of about 90 min, temperature of 20 °C, and anodizing potential from 1 to 25 V. Using these parameters, a uniform self-organized nanotubular TiO _2 layer was prepared with a fine control of the nanotube diameter value over a wide range (10 to 100 nm).https://doi.org/10.1088/2053-1591/ab6f35titania nanotubesanodic oxidationbiomaterialnanostructured materialTiO2 |
| spellingShingle | Elisa Marchezini Fernanda P Oliveira Rafael Lopes Tatiane Almeida Pedro L Gastelois Maximiliano D Martins Controlling morphological parameters of a nanotubular TiO2 coating layer prepared by anodic oxidation Materials Research Express titania nanotubes anodic oxidation biomaterial nanostructured material TiO2 |
| title | Controlling morphological parameters of a nanotubular TiO2 coating layer prepared by anodic oxidation |
| title_full | Controlling morphological parameters of a nanotubular TiO2 coating layer prepared by anodic oxidation |
| title_fullStr | Controlling morphological parameters of a nanotubular TiO2 coating layer prepared by anodic oxidation |
| title_full_unstemmed | Controlling morphological parameters of a nanotubular TiO2 coating layer prepared by anodic oxidation |
| title_short | Controlling morphological parameters of a nanotubular TiO2 coating layer prepared by anodic oxidation |
| title_sort | controlling morphological parameters of a nanotubular tio2 coating layer prepared by anodic oxidation |
| topic | titania nanotubes anodic oxidation biomaterial nanostructured material TiO2 |
| url | https://doi.org/10.1088/2053-1591/ab6f35 |
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