Method for Increasing the Porosity of Anodic TiO <sub>2</sub> Nanotubes by Anodization in Short Time
Abstract Various functional modifications of anodic TiO 2 nanotubes (ATNTs) have been widely studied, but the control of porosity of ATNTs is the key to depositing nanofunctional materials into the tubes. It is difficult to obtain ATNTs with a high porosity in a short anodizing process. The morphologies of ATNTs obtained by one‐step anodization and two‐step anodization were compared in this work. In the process of one‐step anodization at 50 V for 30 min, the surface covering layer on the surface of the obtained ATNTs could reduce the porosity of the nanotube arrays (only 4.58%). However, the titanium substrate, with concaves left after the first step anodization in the electrolyte containing polyethylene glycol (PEG600), was once again anodized at 50 V for only 10 min, and the porosity of the formed ATNTs was increased to 21.50%.
Authors
- Yuting Tang (ORCID: https://orcid.org/0000-0002-9222-8082)
- Ye Song (ORCID: https://orcid.org/0000-0003-3921-5941)
- Fei Chu (ORCID: https://orcid.org/0000-0002-8887-8349)
- Ting Hou (ORCID: https://orcid.org/0000-0003-1733-646X)
- Jiahao Wang (ORCID: https://orcid.org/0000-0002-9627-3067)
- Yaojin Wang (ORCID: https://orcid.org/0000-0003-2561-1855)
- G. Dai
- Zhongyou Fu
- Xiaoqi Li (ORCID: https://orcid.org/0000-0001-6393-102X)
Institutions
- Nanjing University of Science and Technology (CN)
Publication Details
- Journal
- ChemistrySelect
- Published
- 2025-02-01
- DOI
- https://doi.org/10.1002/slct.202500507
- Citations
- 2
- Primary Topic
- Anodic Oxide Films and Nanostructures
- Type
- article
- Field-Weighted Citation Impact
- 1.04
Funders
- Innovative Research Group Project of the National Natural Science Foundation of China
- National Natural Science Foundation of China
- Innovation and Entrepreneurship Talent Project of Lanzhou