Three-dimensional heterogeneous electro-Fenton system with reduced graphene oxide based particle electrode for Acyclovir removal  

作　　者：Nan Cai Ge Bai Ting Zhang Yongqian Lei Pengran Guo Zhiliang Chen Jingwei Xu 

机构地区：[1]Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology,Guangdong Provincial Engineering Research Center for Online Monitoring of Water Pollution,Institute of Analysis,Guangdong Academy of Sciences(China National Analytical Center,Guangzhou),Guangzhou 510070,China [2]College of Petrochemical Engineering,Lanzhou University of Technology,Lanzhou 730000,China [3]Guangdong Engineering Technology Research Center of Heavy Metal Pollution Control and Restoration in Farmland Soil,South China Institute of Environmental Sciences,MEE,Guangzhou 510535,China

出　　处：《Chinese Chemical Letters》2024年第1期424-430,共7页中国化学快报（英文版）

基　　金：the GDAS’Project of Science and Technology Development(No.2020GDASYL-20200103044);Key-Area Research and Development Program of Guangdong(No.2020B1111350002);the National Key R&D Program of China(No.2019YFC1805305);the Project of Water Resource Department of Guangdong Province(No.2017-18).

摘　　要：New pollutant pharmaceutical and personal care products(PPCPs),especially antiviral drugs,have received increasing attention not only due to their increase in usage after the outbreak of COVID-19 epidemics but also due to their adverse impacts on water ecological environment.Electro-Fenton technology is an effective method to remove PPCPs from water.Novel particle electrodes(MMT/rGO/Fe_(3)O_(4))were synthesized by depositing Fe3O4 nanoparticles on reduced graphene oxide modified montmorillonite and acted as catalysts to promote oxidation performance in a three-dimensional electro-Fenton(3D-EF)system.The electrodes combined the catalytic property of Fe3O4,hydrophilicity of montmorillonite and electrical conductivity of graphene oxides,and applied for the degradation of Acyclovir(ACV)with high efficiency and ease of operation.At optimal condition,the degradation rate of ACV reached 100%within 120 min,and the applicable pH range could be 3 to 11 in the 3D-EF system.The stability and reusability of MMT/rGO/Fe_(3)O_(4)particle electrodes were also studied,the removal rate of ACV remained at 92%after 10 cycles,which was just slightly lower than that of the first cycle.Potential degradation mechanisms were also proposed by methanol quenching tests and FT-ICR-MS.

关 键 词：Advanced oxidation Three-dimensional electro-Fenton Reduced graphene oxide Acyclovir(ACV) Degradation 

分 类 号：X505[环境科学与工程—环境工程] TQ426[化学工程]