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Photocatalytic oxidation of ammonia by Bi2WO6 nanoplates using fluorescent light

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  • Materials Science
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Chinese Science Bulletin

Abstract

Photocatalytic oxidation under fluorescent light with Bi2WO6 was used to oxidize ammonia. The results showed that the NH4 +/NH3 could be totally converted into NO3 − and trace amount of NO2 − in an alkaline solution. It was revealed that the photocatalytic oxidation efficiency was affected by the pH values and the initial concentration of the pollutant. Possible mechanism of photocatalytic oxidation in the system is proposed. The superoxide species (•O2−) captured by the superoxide dismutase levels could accelerate the photocatalytic oxidation reaction. The indoor fluorescent lamp as the light source will be a promising option for future applications of photocatalytic technology.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (51272269, 51272303, 51102262) and the National Basic Research Program of China (2010CB933503, 2013CB933203).

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Authors and Affiliations

  1. State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China

    Ling Zhang, Wenzhong Wang & Songmei Sun

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  1. Ling Zhang
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  2. Wenzhong Wang
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  3. Songmei Sun
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Corresponding author

Correspondence to Wenzhong Wang.

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SPECIAL ISSUE: Advanced Materials for Clean Energy

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Zhang, L., Wang, W. & Sun, S. Photocatalytic oxidation of ammonia by Bi2WO6 nanoplates using fluorescent light. Chin. Sci. Bull. 59, 2181–2185 (2014). https://doi.org/10.1007/s11434-014-0242-5

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  • DOI: https://doi.org/10.1007/s11434-014-0242-5

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