Core-Shell Nanostructured "Black" Rutile Titania as Excellent Catalyst for Hydrogen Production Enhanced by Sulfur Doping
- Yang, Chongyin
- Wang, Zhou
- Lin, Tianquan
- Yin, Hao
- Lu, Xujie
- Wan, Dongyun
- Xu, Tao
- Zheng, Chong
- Lin, Jianhua
- Huang, Fuqiang
- Xie, Xiaoming
- Jiangl, Mianheng
DOIAbstract
Modification of rutile titanium dioxide (TiO2) for hydrogen generation and water cleaning is a grand challenge due to the chemical inertness of rutile, while such inertness is a desired merit for its stability in photoelectrochemical applications. Herein, we report an innovative two-step method to prepare a core shell nanostructured S-doped rutile TiO2 (R'-TiO2-S). This modified black rutile TiO2 sample exhibits remarkably enhanced absorption in visible and near-infrared regions and efficient charge separation and transport. As a result, the unique sulfide surface (TiO2-x:S) boosts the photocatalytic water cleaning and water splitting with a steady solar hydrogen production rate of 0.258 mmol h(-1) g(-1). The black titania is also an e...
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