Nonylphenol photodegradation by novel ternary MIL-100(Fe)/ZnFe_(2)O_(4)/PCN composite under visible light irradiation via double charge transfer process  

作　　者：Kailin Xu Li Jiao Chuqiao Wang Yiming Bu Yuling Tang Liwei Qiu Qiuya Zhang Liping Wang 

机构地区：[1]School of Environmental and Safety Engineering,Changzhou University,Changzhou 213164,China [2]Changzhou Cheff Environmental Protection Technology Co.,Ltd.,Changzhou 213164,China

出　　处：《Journal of Environmental Sciences》2022年第1期93-103,共11页环境科学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.21477050);the International Scientific and Technological Cooperation in Changzhou(No.CZ20140017);Postgraduate Research Innovation Project of Jiangsu Province(Nos.KYCX20_2561,KYCX20_2598);the Jiangsu Planned Projects for Postdoctoral Research Funds(No.2019K112);the Jiangsu Province subsidizes the recruitment of postdoctoral personnel(No.2019Z143)。

摘　　要：Nonylphenol(NP)residues,as a typical endocrine disrupting chemical(EDC),frequently exist in sewage,surface water,groundwater and even drinking water,which poses a serious threat to human health due to its bioaccumulation.In order to remove NP,a series of MIL-100(Fe)/Zn Fe_(2)O_(4)/flake-like porous carbon nitride(MIL/ZC)was synthesized through in-situ synthesis at room temperature.High performance of ternary MIL/ZC is used to degrade NP under visible light irradiation.The results show that 30MIL/ZC2(20 wt.%Zn Fe_(2)O_(4))ternary composite had the best photocatalytic activity(99.84%)when the dosage was 30 mg.Further mechanism analysis shows that the excellent photocatalytic activity of 30MIL/ZC2could be ascribed to the double charge transfer process between flake-like porous carbon nitride(PCN)and other catalysts in the ternary heterojunction,and the separation of photogenerated electron-hole pairs was more effective.In addition,the 30MIL/ZC2 also showed high stability after five cycles of the photodegradation reaction.Furthermore,the active substance(·O_(2)^(-))was considered to be the main active substance in the NP degradation process.Based on the research results,the possible photocatalytic reaction mechanism of 30MIL/ZC2ternary composite was proposed and discussed in detail.

关 键 词：MIL-100(Fe)/Zn Fe_(2)o_(4)/PCN NONYLPHENOL Double charge transfer process Visible light irradiation Photocatalytic 

分 类 号：X703[环境科学与工程—环境工程] TQ426[化学工程] TB332[一般工业技术—材料科学与工程]