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Effect of dose rate on degradation of 2,6-dichlorophenol by electron beam irradiation

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Abstract

The effects of different dose rates on the degradation of 2,6-dichlorophenol (2,6-DCP) in aqueous solution were investigated at about 2 × 104 Gy absorbed dose, using a 10 MeV electron beam accelerator. It was found that the removal efficiency decreased with increasing dose rate at all initial concentrations of 0.5, 1 and 2 g L−1, and the effect was significantly diminished by addition of P25 TiO2 nanoparticles. Alkaline medium were unfavorable for degradation of 2,6-DCP. Hydrogen peroxide (H2O2) could promote the removal efficiency at a lower dose rate rather than at a higher one.

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Acknowledgements

The work was supported by the National Natural Science Foundation of China (Grant Nos. 51878611, 51608480, and 11405086) and the Fundamental Research Funds for the central Universities (Grant No. NS2017037). The authors also thank PAPD (A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education).

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Correspondence to Wenbao Jia.

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Ling, Y., Hu, S., Chen, T. et al. Effect of dose rate on degradation of 2,6-dichlorophenol by electron beam irradiation. J Radioanal Nucl Chem (2020) doi:10.1007/s10967-019-07004-8

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Keywords

  • Electron beam irradiation
  • Irradiation-induced degradation
  • Dose rate
  • 2,6-DCP
  • TiO2
  • Hydrogen peroxide