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The effects of different methods of catalyst preparation on the hydro-electric plasma TiO2-catalyzed degradation of 2,4-dinitrophenol

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Abstract

Hydro-electric plasma technology in the presence of TiO2 catalyst used to treat 2,4-dinitrophenol (2,4-DNP) simulated wastewater is reported. The catalytic activity of TiO2 prepared by ammonia precipitation was greater than the activity of the TiO2 prepared by NaOH precipitation. The presence of chloride ions during the preparation process of TiO2 had a large negative effect on the catalytic activity. The catalytic activity of TiO2 calcined at 673 K was significantly higher than the activity of the TiO2 that was calcined at higher and lower temperatures. After being calcined at 673 K, TiO2 was mainly in the anatase phase and degraded 81% of the 2,4-DNP after 10 min of treatment.

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Acknowledgments

The project was supported by National Nature Science Funds of China (No. 20466001), Guangxi University Key Program for Science and Technology Research (No. 2004ZD01) and Guangzhou Education Office Scientific Research Projects (62040). Also, we thank Dr. Donald Barnes, Visiting Professor of Chemistry at Guangxi University for his helpful discussions about this paper.

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Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, Guangxi University, 530004, Nanning, People’s Republic of China

    Zu Zeng Qin, Zi Li Liu, Yu Feng Zeng, Jian Hua Sun & Ke Di Yang

  2. School of Chemistry and Chemical Engineering, Guangzhou University, 510006, Guangzhou, People’s Republic of China

    Zi Li Liu

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  1. Zu Zeng Qin
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  2. Zi Li Liu
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  3. Yu Feng Zeng
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Correspondence to Zi Li Liu.

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Qin, Z.Z., Liu, Z.L., Zeng, Y.F. et al. The effects of different methods of catalyst preparation on the hydro-electric plasma TiO2-catalyzed degradation of 2,4-dinitrophenol. Environ Chem Lett 7, 149–153 (2009). https://doi.org/10.1007/s10311-008-0150-5

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  • DOI: https://doi.org/10.1007/s10311-008-0150-5

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