首页|Three-dimensional heterogeneous electro-Fenton system with reduced graphene oxide based particle electrode for Acyclovir removal
Three-dimensional heterogeneous electro-Fenton system with reduced graphene oxide based particle electrode for Acyclovir removal
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New pollutant pharmaceutical and personal care products(PPCPs),especially antiviral drugs,have re-ceived increasing attention not only due to their increase in usage after the outbreak of COVID-19 epi-demics but also due to their adverse impacts on water ecological environment.Electro-Fenton technol-ogy is an effective method to remove PPCPs from water.Novel particle electrodes(MMT/rGO/Fe3O4)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)sys-tem.The electrodes combined the catalytic property of Fe3O4,hydrophilicity of montmorillonite and elec-trical conductivity of graphene oxides,and applied for the degradation of Acyclovir(ACV)with high ef-ficiency 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/Fe3O4 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.
Nan Cai、Ge Bai、Ting Zhang、Yongqian Lei、Pengran Guo、Zhiliang Chen、Jingwei Xu
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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
College of Petrochemical Engineering,Lanzhou University of Technology,Lanzhou 730000,China
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
GDAS'Project of Science and Technology DevelopmentKey-Area Research and Development Program of Guangdong国家重点研发计划Project of Water Resource Department of Guangdong Province
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