Citation: Yunchang Liu, Mingyang Xing, Jinlong Zhang. Ti³⁺ and carbon co-doped TiO₂ with improved visible light photocatalytic activity[J]. Chinese Journal of Catalysis, ;2014, 35(9): 1511-1519. doi: 10.1016/S1872-2067(14)60093-0 shu

Ti³⁺ and carbon co-doped TiO₂ with improved visible light photocatalytic activity

1.
Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, China

Corresponding author: Mingyang Xing, Jinlong Zhang,
Received Date: 21 February 2014
Available Online: 24 March 2014
Fund Project:

Using ethanol as the carbon source, a series of Ti³⁺ and carbon co-doped TiO₂ samples were successfully synthesized by an innovative and simple vacuum activation method in a one-step process. The Ti³⁺ self-doped TiO₂ featured a high visible light photocatalytic activity that improved considerably following subsequent carbon doping modification of the catalyst surface. The samples were characterized by X-ray diffraction, UV-Vis diffuse reflectance spectroscopy, electron spin resonance, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy. The Ti³⁺ and C co-doped TiO₂ catalyst showed a high methyl orange photo-degradation efficiency under visible light irradiation. The doping levels induced by Ti³⁺ and oxygen vacancies were responsible for the improved visible light response of TiO₂. Simultaneously, the surface coverage of graphite on the catalyst could improve the absorption of visible light and migration efficiency of photo-induced electrons. The synergistic effects of Ti³⁺ self-doping and graphite coverage led to the improved visible light photocatalytic activity of Ti³⁺ and C co-doped TiO₂.
- Vacuum activation,
- Ti³⁺-doped,
- Graphite coverage,
- Titania,
- Photocatalytic activity
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沈阳化工大学材料科学与工程学院沈阳 110142

Ti3+ and carbon co-doped TiO2 with improved visible light photocatalytic activity

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通讯作者: 陈斌, bchen63@163.com

Ti³⁺ and carbon co-doped TiO₂ with improved visible light photocatalytic activity