Boosting peroxymonosulfate activated for emerging contaminant removal:The synergy of boron doping in regulating the interfacial electric field of FeNC
简介:Peroxymonosulfate(PMS)-based advanced oxidation processes(AOPs)are an effective way to remove emerging contaminants(ECs)from water.The catalytic process involving PMS is hindered by the suboptimal electron trans-fer efficiency of current catalysts,the further application of AOPs technology is limited.Here,it is proposed that the interfacial electric field can be controlled by bor(B)-doped FeNC catalysts,which shows significant advantages in the efficient generation,release and participation of reactive oxygen species(ROS)in the reaction.The super exchange interaction between Fe sites and N and B sites is realized through the directional transfer of electrons in the interfacial electric field,which ensures the high efficiency and stability of the PMS catalytic process.B doping increases the d orbitals distribution at Fermi level,which facilitates enhanced electron transition activity,thereby promoting the effective generation of 1O2.At the same time,orbital hybridization causes the center of the d band to move to a lower energy level,which not only contributes to the desorption process of 1O2,but also accelerates its release.In addition,B-doping also improved the adsorption capacity of organic pollutants and shortened the migration distance of ROS,thereby significantly improving the degradation efficiency of ECs.The B-doping strategy outlined offers a novel approach to the development of FeNC catalysts,it lays a theoretical foundation and offers technical insights for the integration of PMS/AOPs technology in the ECs management.展开
学者:ShiyuZuoYanWangJinquanWanJianxinYiJoseAlemáne
关键词:Interfacial electric fieldBoron dopingElectronic transferperoxymonosulfateEmerging contaminants
在线出版日期:2026-03-03 (网站首发日期)