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Zn0-activated persulfate as a novel and potential approach to the degradation of azo dyes has hardly been reported. In this study, the effects of initial pH, persulfate concentration, Zn0 dosage, and temperature on the decomposition of Congo red (CR), an azo dye, were investigated. The results demonstrated that Zn0-activated persulfate could effectively mineralize CR. At the initial pH 5.5 and 25 °C,...
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