Issues regarding the pH value in the Fenton oxidation method
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It can be seen that oxidation reactions using hydrogen peroxide in acidic solutions are often extremely slow； In alkaline solutions, the oxidation reaction is rapid. Is this sentence correct? If that is correct, what is the effect of carrying out oxidation using the Fenton oxidation method at a pH of 8? Because after oxidation under low pH conditions, it is often necessary to add alkali to adjust the pH; if oxidation can be carried out at pH 8, this can help save costs and reduce the number of processing steps. Has anyone conducted any experimental comparisons in this regard and would like to share their findings? Or perhaps everyone can share their own opinions.
Fenton needs ferrous ions, and the solution is alkaline from the start; what reaction do you think will occur?
There are no Fe ions in alkaline environments; Fenton reaction can only occur under acidic conditions. Due to the slow oxidation rate, the reaction time generally needs to be over 1 hour to be relatively thorough.