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The performance and mechanism of mechanochemical activation of peroxymonosulfate (PMS) by cryptomelane-type manganese octahedral molecular sieve (OMS-2) prepared by a refluxing method for degradation of Acid Orange 7 (AO7) have been demonstrated. Grinding of OMS-2 and PMS in presence of a small amount of H2O for a short time induced a much higher AO7 degradation efficiency compared with the OMS-2...
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