Influence of Co-Ce co-doping on photocatalytic DeNOx of TiO2 catalyst at room temperature

WANG Shu-qin; WU Jin-jin; DU Zhi-hui

Volume 47 Issue 3

Mar. 2019

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Article Navigation > Journal of Fuel Chemistry and Technology > 2019 > 47(3): 361-369

WANG Shu-qin, WU Jin-jin, DU Zhi-hui. Influence of Co-Ce co-doping on photocatalytic DeNOx of TiO2 catalyst at room temperature[J]. Journal of Fuel Chemistry and Technology, 2019, 47(3): 361-369.

Citation:

WANG Shu-qin, WU Jin-jin, DU Zhi-hui. Influence of Co-Ce co-doping on photocatalytic DeNO_x of TiO₂ catalyst at room temperature[J]. Journal of Fuel Chemistry and Technology, 2019, 47(3): 361-369.

WANG Shu-qin, WU Jin-jin, DU Zhi-hui. Influence of Co-Ce co-doping on photocatalytic DeNOx of TiO2 catalyst at room temperature[J]. Journal of Fuel Chemistry and Technology, 2019, 47(3): 361-369.

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Influence of Co-Ce co-doping on photocatalytic DeNO_x of TiO₂ catalyst at room temperature

Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, China

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The project was supported by the National Basic Research Program of China 2018YFB060420103

National Natural Science Foundation of HeBei Province E2014502111

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Corresponding author: WANG Shu-qin, E-mail: wsqhg@163.com
Received Date: 2018-10-08
Rev Recd Date: 2019-01-08

Available Online: 2021-01-23

Publish Date: 2019-03-10

Abstract

Abstract

Ce-TiO₂ and Ce-Co-TiO₂ powders were prepared by the sol-gel hydrothermal method with butyl titanate as the source of Ti, cerium nitrate as the source of Ce, cobalt nitrate for Co source. The modified TiO₂ catalysts were characterized with BET, XRD, SEM, UV-vis, XPS and NH₃-TPD. The NO reduction efficiency by visible light over the modified TiO₂ catalysts was carried out. The experimental results show that the catalyst Ce (1% molar)-Co (5% molar)-TiO₂ prepared under the conditions of 24 h hydrothermal synthesis at 160 and 200 ℃of calcination showed the best performance. At room temperature, the visible light catalytic efficiency of the catalyst reached 92.69% when the NO initial concentration was 762 μg/m³. When the NO initial concentration was 1148 μg/m³, the visible light catalytic efficiency could still reach 85.94%, which was improved by nearly 50% compared with pure TiO₂. Moreover, it was found that in the resistance of SO₂ and continuous usage, the efficiency of the Ce (1%)-Co (5%)-TiO₂ catalyst was better than the commercial catalysts (TiO₂ with V₂O₅ doping).
- Ce-Co-TiO₂,
- denitration,
- room temperature,
- visible light catalysis

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References(26)

References

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