Citation: Zhenyu Huang, Zhenggang Gao, Shanmin Gao, Qingyao Wang, Zeyan Wang, Baibiao Huang, Ying Dai. Facile synthesis of S-doped reduced TiO_2-x with enhanced visible-light photocatalytic performance[J]. Chinese Journal of Catalysis, ;2017, 38(5): 821-830. doi: 10.1016/S1872-2067(17)62825-0 shu

Facile synthesis of S-doped reduced TiO_2-x with enhanced visible-light photocatalytic performance

a. College of Chemistry and Materials Science, Ludong University, Yantai 264025, Shandong, China;
b. State Key Lab of Crystal Materials, Shandong University, Jinan 250100, Shandong, China

Received Date: 31 January 2017
Revised Date: 26 March 2017

Fund Project: This work was supported by the Science and Technology Development Plan Project of Shandong Province (2014GSF117015), the National Basic Research Program of China (973 program, 2013CB632401), and the National Natural Science Foundation of China (51402145).

A different approach to synthesize visible-light-active sulfur (S)-doped reduced titania (S-TiO_2-x) using thiourea dioxide as both the S source and reductant was developed. The structure, morphology, and optical and electronic properties of the as-prepared S-TiO_2-x samples were examined by multiple techniques, such as X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, ultraviolet-visible diffuse reflectance spectroscopy, Brunauer-Emmett-Teller and photocurrent measurements, and electrochemical impedance spectroscopy. The photocatalytic activity of S-TiO_2-x was evaluated by photodegradation of organic Rhodamine B under visible-light irradiation. The degradation rate of Rhodamine B by S-TiO_2-x obtained by calcination was about 31, 2.5, and 3.6 times higher than those of pure TiO₂, pristine TiO_2-x, and S-doped TiO₂, respectively. In addition, the as-prepared S-TiO_2-x exhibited long-term stable photocatalytic performance in the degradation of Rhodamine B under visible-light illumination. This report reveals a new approach to prepare stable and highly efficient solar light-driven photocatalysts for water purification.
- Ti³⁺ self-doped,
- Titania,
- Sulfur doped,
- Thiourea dioxide,
- Visible light photocatalysis
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Facile synthesis of S-doped reduced TiO2-x with enhanced visible-light photocatalytic performance

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通讯作者: 陈斌, bchen63@163.com

Facile synthesis of S-doped reduced TiO_2-x with enhanced visible-light photocatalytic performance