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Enhanced solar absorption and photoelectrochemical properties of Al-reduced TiO2/TiO2−x/CdS heterojunction nanorods.
- Source :
- New Journal of Chemistry; 6/14/2023, Vol. 47 Issue 22, p10672-10678, 7p
- Publication Year :
- 2023
-
Abstract
- Oxygen-deficient TiO<subscript>2</subscript>-based composites have attracted widespread attention due to their promoted light-harvesting capacity and energy conversion efficiency, beneficial for water splitting. Despite being a facile, secure-safe and undefiled route for preparing blackened TiO<subscript>2</subscript>, the Al-reduction method has not been adopted for preparing TiO<subscript>2</subscript>/TiO<subscript>2−x</subscript>/CdS composite films. Herein, TiO<subscript>2</subscript>/TiO<subscript>2−x</subscript>/CdS composite nanorods were successfully fabricated by combining hydrothermal, Al-reduction and chemical bath deposition (CBD) techniques. Enhanced visible-light absorption and photoelectrochemical performances have been achieved using TiO<subscript>2</subscript>/TiO<subscript>2−x</subscript>/CdS heterojunction nanorods. The photocurrent density of TiO<subscript>2</subscript>/TiO<subscript>2−x</subscript>/CdS was obtained to be 7.75 mA cm<superscript>−2</superscript> at 0 V vs. Ag/AgCl under AM 1.5 G illumination, which was 77.5-fold and 12.1-fold higher than those of bare TiO<subscript>2</subscript> and CdS, respectively. This work may offer new insights for realizing TiO<subscript>2</subscript>-based composites with improved solar absorption for photoelectrochemical applications. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 11440546
- Volume :
- 47
- Issue :
- 22
- Database :
- Complementary Index
- Journal :
- New Journal of Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 164129709
- Full Text :
- https://doi.org/10.1039/d3nj01610b