单原子Cu-N-C催化剂活化过硫酸盐降解双酚A

Activation of Persulfate by Single Atom Cu-N-C Catalysts for Degradation of Bisphenol A

课题组合成了一种高效Cu-N-C催化剂,其单原子Cu活性位点含量高且均匀分布于超薄氮掺杂碳纳米片中,探究焙烧温度、过硫酸盐(PMS)含量和pH值等参数对催化剂活化PMS降解双酚A(BPA)的影响,结果表明:900℃焙烧得到的Cu-N-C催化剂活化PMS在10 s内对BPA的降解率达到了90%左右,所用催化剂的量仅为3 mg,展现了催化效率的快速、所需催化剂量较少等优点,同时该催化剂对其他污染物也有一定程度的降解。

A high efficient Cu-N-C catalyst was synthesized,which had a high content of Cu active sites and was uniformly distributed in ultrathin N-doped carbon nanosheets.The effects of calcination temperature,persulfate(PMS)content and pH value on the degradation of bisphenol A(BPA)by activated PMS were investigated.The results showed that the degradation rate of BPA was about 90%in 10 seconds when PMS was activated by Cu-N-C-900 catalyst,and the amount of Cu-N-C-900 catalyst was only 3 mg,which indicated the advantages of high catalytic efficiency with less amount of catalyst.Moreover,the catalyst could also degrade other pollutants to some extent.