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A Facile Strategy for the Preparation of N-Doped TiO 2 with Oxygen Vacancy via the Annealing Treatment with Urea.
- Source :
- Nanomaterials (2079-4991); May2024, Vol. 14 Issue 10, p818, 8p
- Publication Year :
- 2024
-
Abstract
- Although titanium dioxide (TiO<subscript>2</subscript>) has a wide range of potential applications, the photocatalytic performance of TiO<subscript>2</subscript> is limited by both its limited photoresponse range and fast recombination of the photogenerated charge carriers. In this work, the preparation of nitrogen (N)-doped TiO<subscript>2</subscript> accompanied by the introduction of oxygen vacancy (Vo) has been achieved via a facile annealing treatment with urea as the N source. During the annealing treatment, the presence of urea not only realizes the N-doping of TiO<subscript>2</subscript> but also creates Vo in N-doped TiO<subscript>2</subscript> (N-TiO<subscript>2</subscript>), which is also suitable for commercial TiO<subscript>2</subscript> (P25). Unexpectedly, the annealing treatment-induced decrease in the specific surface area of N-TiO<subscript>2</subscript> is inhibited by the N-doping and, thus, more active sites are maintained. Therefore, both the N-doping and formation of Vo as well as the increased active sites contribute to the excellent photocatalytic performance of N-TiO<subscript>2</subscript> under visible light irradiation. Our work offers a facile strategy for the preparation of N-TiO<subscript>2</subscript> with Vo via the annealing treatment with urea. [ABSTRACT FROM AUTHOR]
- Subjects :
- TITANIUM dioxide
DOPING agents (Chemistry)
UREA
OXYGEN
VISIBLE spectra
Subjects
Details
- Language :
- English
- ISSN :
- 20794991
- Volume :
- 14
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- Nanomaterials (2079-4991)
- Publication Type :
- Academic Journal
- Accession number :
- 177497027
- Full Text :
- https://doi.org/10.3390/nano14100818