{:(H(2)O rarr2H^(+) + 1//2 O(2)+2e^(-)),(1 mol " "2 mol):} (Here, oxidation number of oxygen changes from -2 in H(2)O to 0 in O(2). Therefore, 2 moles of electrons are lost during the oxidation of 1 mol of water.) The
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Since anthraquinone-dissolved organic matter contains an oxidation-sensitive functional group structure, it not only transfers electrons in the PDS activation reaction [32], but also generates reductive semiquinone radicals during the activation process, which reduces S2O82− to SO4−•and SO42−...