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Citation: Shunhang Wei, Shuang Ni, Xiaoxiang Xu. A new approach to inducing Ti³⁺ in anatase TiO₂ for efficient photocatalytic hydrogen production[J]. Chinese Journal of Catalysis, ;2018, 39(3): 510-516. doi: 10.1016/S1872-2067(17)62968-1 shu

A new approach to inducing Ti³⁺ in anatase TiO₂ for efficient photocatalytic hydrogen production

a Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, China;
b Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China

Received Date: 28 September 2017
Revised Date: 30 October 2017

Fund Project: This work was supported by the National Natural Science Foundation of China (21401142), Recruitment Program of Global Youth Experts (1000 plan), and Science & Technology Commission of Shanghai Municipality (14DZ2261100).

Ti³⁺ species and oxygen vacancies were successfully introduced into anatase TiO₂ by a simple method. The physicochemical properties of the as-prepared samples were explored by techniques including X-ray diffraction and field emission scanning electron microscopy. The amount of H₂O₂ precursor and hydrothermal reaction time were found to affect the formation of the TiO₂ nanorod-type microstructure. Possible mechanisms for the formation of this microstructure are proposed on the basis of analytical results, including electron paramagnetic resonance, where parameters such as the amount of H₂O₂ and hydrothermal reaction time were adjusted. More importantly, light absorption in the visible light region was strongly affected by the number of oxygen vacancies within the samples. The oxygen vacancy content featured an optimal level for producing the highest photocatalytic hydrogen production activity.
- Ti³⁺,
- Oxygen vacancy,
- TiO₂,
- Photocatalyst,
- Hydrogen production
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A new approach to inducing Ti3+ in anatase TiO2 for efficient photocatalytic hydrogen production

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A new approach to inducing Ti³⁺ in anatase TiO₂ for efficient photocatalytic hydrogen production