Copper doped ordered mesoporous carbon (Cu-OMC) was prepared by evaporation induced self-assembly and presented high catalytic activity for the activation of peroxymonosulfate (PMS). At the condition of catalyst dosage 0.1g/L, PMS concentration 0.5mmol/L, the removal of 20mg/L bisphenol A (BPA) could be achieved 91% in 60min.The reaction can be performed under a wide pH range around 3-11 and little influenced by anions including Cl?, SO4 2?, HCO3?and PO4 3?. The reactive oxygen species (ROS) generated during the reaction process were analyzed by radical quenching tests and electron spin response (EPR). It was found that apart from sulfate radical (SO4??) and hydroxyl radicals (?OH), singlet oxygen ( 1 O2) also contributed to the degradation of BPA.%采用蒸发诱导自组装的方法制备了掺铜有序介孔碳复合催化剂(Cu-OMC),开展了Cu-OMC活化过硫酸氢钾(PMS)氧化降解双酚A研究.研究结果显示,Cu-OMC可高效活化PMS进而有效降解双酚A,在催化剂投加量0.1g/L、PMS浓度0.5mmol/L的反应条件下,60min内对20mg/L的双酚A去除率可达91%.在pH=3~11范围内,双酚A均可有效降解,阴离子(Cl?、SO42?、HCO3?和PO43?)的存在对双酚A降解影响较小.利用自由基猝灭实验和电子顺磁共振(EPR)对反应过程中产生的活性氧自由基(ROS)进行了分析,结果表明除了硫酸根自由基(SO4??)和羟基自由基(?OH),单线态氧(1O2)在双酚A的降解过程中起着重要作用.
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