@article{PAR00022490,
  title = {{P}eroxydisulfate activation process on copper oxide : {C}u({III}) as the predominant selective intermediate oxidant for phenol and waterborne antibiotics removal},
  author = {{L}i, {C}. and {G}oetz, {V}. and {C}hiron, {S}erge},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n this study, activated peroxydisulfate ({PDS}) by micrometer copper oxide ({C}u{O}) particles effectively degraded phenol and several antibiotics in water. {C}upryl ion ({C}u({III})) was proposed for the first time to be the predominant reactive species accounting for contaminants degradation in the {C}u{O}/{PDS} oxidation system. {S}inglet oxygen was also heavily produced from the superoxide radical anion ({O}-center dot(2)-) decomposition was found to be but slightly involved in the degradation since it was rapidly quenched by water. {T}ransformation pathways of phenol and several antibiotics were elucidated. {T}he proposed mechanism mainly involved the generation of {O}-center dot(2)- resulting from an outer-sphere surface {PDS} complexation which prompted the reduction of {C}u({II}) to {C}u({I}). {C}u({I}) was oxidized in {C}u({III}) by {PDS} or {H}2{O}2 and was reduced to {C}u({II}) by a one-electron oxidation of contaminants so that the catalytic effect involved alternate oxidation and reduction of copper. {A}s the degradation process did not rely on sulfate or hydroxyl radical, chloride and bicarbonate ions showed no effect on phenol degradation, while sulfate ions and humic acid slightly hindered phenol degradation probably due to their sorption on {C}u{O}. {I}nterestingly, the copper leaching from {C}u{O} was significantly limited to < 500 mu g/{L} in wastewater. {T}hese findings indicated the potential applicability of {C}u{O}/{PDS} system for electron-rich compounds degradation including antibiotics due to good catalyst stability against time.},
  keywords = {{C}opper oxide ; {P}eroxydisulfate ; {C}upryl ion ; {N}on-radical mechanism ; {T}ransformation pathways ; {A}ntibiotics},
  booktitle = {},
  journal = {{J}ournal of {E}nvironmental {C}hemical {E}ngineering},
  volume = {9},
  numero = {2},
  pages = {105145 [11 p.]},
  year = {2021},
  DOI = {10.1016/j.jece.2021.105145},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00022490},
}