Efficient decomposition of environmentally persistent perfluorocarboxylic acids by use of persulfate as a photochemical oxidant.

@article{Hori2005EfficientDO,
  title={Efficient decomposition of environmentally persistent perfluorocarboxylic acids by use of persulfate as a photochemical oxidant.},
  author={Hisao Hori and Ari Yamamoto and Etsuko Hayakawa and Sachi Taniyasu and Nobuyoshi Yamashita and Shuzo Kutsuna and Hiroshi Kiatagawa and Ryuichi Arakawa},
  journal={Environmental science & technology},
  year={2005},
  volume={39 7},
  pages={2383-8}
}
Photochemical decomposition of persistent perfluorocarboxylic acids (PFCAs) in water by use of persulfate ion (S2O8(2-)) was examined to develop a technique to neutralize stationary sources of PFCAs. Photolysis of S2O8(2-) produced highly oxidative sulfate radical anions (SO4-), which efficiently decomposed perfluorooctanoic acid (PFOA) and other PFCAs bearing C4-C8 perfluoroalkyl groups. The major products were F- and CO2; also, small amounts of PFCAs with shorter than initial chain lengths… CONTINUE READING

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