Abstract
AbstractWe propose here a new combination of aqueous pulsed discharge plasma (PDP) process with magnetic material (Fe3O4) nanoparticles for the efficient removal of p‐chlorophenol(4‐CP)‐contaminated wastewater. It was found that the magnetite particles could efficiently degrade the toxic, organic pollutant 4‐CP into more active species through the main surface Fenton's reactions and catalytic decomposition of dissolved ozone. Magnetite particles with a dose of 100 mg · L−1 in combination with bubbling oxygen were found to be suitable under any pH condition, and, as suggested by the analysis of Fe ions leaching rate and by the changes of XRD patterns before and after use, the catalytic activity of the magnetite particles was only slightly affected by the critical circumstances induced by PDP (e.g. supersonic condition, shock wave and supercritical water condition).magnified image
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