Pec In Environmental Cleanup 2

oxidize the organic pollutants into CO₂ and H₂O as follows [27] : ZnO + photon →h+ + eˉ H₂O →h+ + OHˉ h+ + OHˉ →HO• h+ + H₂O →H+ + OH• eˉ + O₂ →O₂ˉ• O₂ˉ 十 h+ →HO₂• 2HO₂• →O₂• + H₂O₂ H₂O₂ + O₂ˉ• →OH•+ OHˉ+ O₂ H₂O₂ + photon → 2OH • Organic + OH• + O2 → CO2 + H₂O + other productions.