Abstract
Boron-doped diamond (BDD) is playing an important role in environmental electrochemistry and has been successfully applied to the degradation of various bio-refractory organic pollutants. However, the review concerning recent progress in this research area is still very limited. This mini-review updated recent advances on the removal of three kinds of bio-refractory wastewaters including pharmaceuticals, pesticides, and dyes using BDD electrode. It summarized the important parameters in three electrochemical oxidation processes, i.e., anodic oxidation (AO), electro-Fenton (EF), and photoelectro-Fenton (PEF) and compared their different degradation mechanisms and behaviors. As an attractive improvement of PEF, solar photoelectro-Fenton using sunlight as UV/vis source presented cost-effectiveness, in which the energy consumption for enrofloxacin removal was 0.246 kWh/(g TOC), which was much lower than that of 0.743 and 0.467 kWh/(g TOC) by AO and EF under similar conditions. Finally the existing problems and future prospects in research were suggested.
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Acknowledgements
This work was supported by the Natural Science Foundation of China (nos. 51178225, 21273120, and 21250110515), National High Technology Research and Development Program of China (nos. 2013AA065901 and 2013AA06A205), Fund for the Doctoral Program of Higher Education of China (no. 20110031110025), and the Fundamental Research Funds for the Central Universities.
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Yu, X., Zhou, M., Hu, Y. et al. Recent updates on electrochemical degradation of bio-refractory organic pollutants using BDD anode: a mini review. Environ Sci Pollut Res 21, 8417–8431 (2014). https://doi.org/10.1007/s11356-014-2820-0
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DOI: https://doi.org/10.1007/s11356-014-2820-0