Degradation of methylene blue by three-dimensional heterogeneous electro-Fenton system with CuFeKao particle electrode
CuFe2O4/Fe2O3/Kaolin(CuFeKao) catalytic particle electrode was synthesized by sol-gel method and used in three-dimensional heterogeneous electro-Fenton system to degrade Methylene blue(MB). XRD results showed that CuFeKao was a composite material composed of CuFe2O4, Fe2O3 and Kaolin. Through compar...
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Editorial Office of Industrial Water Treatment
2025-02-01
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| Series: | Gongye shui chuli |
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| Online Access: | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2024-0250 |
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| author | CHEN Yue PENG Xueer ZHOU Chenyang LI Jing MENG Xinyi GAO Lili |
| author_facet | CHEN Yue PENG Xueer ZHOU Chenyang LI Jing MENG Xinyi GAO Lili |
| author_sort | CHEN Yue |
| collection | DOAJ |
| description | CuFe2O4/Fe2O3/Kaolin(CuFeKao) catalytic particle electrode was synthesized by sol-gel method and used in three-dimensional heterogeneous electro-Fenton system to degrade Methylene blue(MB). XRD results showed that CuFeKao was a composite material composed of CuFe2O4, Fe2O3 and Kaolin. Through comparative experiments, it was found that three-dimensional electrochemical interactions could increase the yield of H2O2, and heterogeneous electro-Fenton systems could catalyze the in-situ conversion of H2O2 to ·OH. Compared with 3D systems using CuFe2O4/Fe2O3 or Kaolin as particle electrode and 2D systems, the 3D/EF/CuFeKao system exhibited the highest ·OH yield and the best MB degradation effect. The degradation conditions of the 3D/EF/CuFeKao system were optimized by single factor experiments. Under the optimized conditions, the removal rates of MB and TOC could reach 99.81% and 58.13% respectively after 60 minutes of reaction. The quenching of free radicals confirmed that the system contained two reactive oxygen species, ·OH and O2·-, whose relative proportions could be regulated by solution pH. Mechanism analysis showed that the main mechanism of MB degradation in the 3D/EF/CuFeKao system is the heterogeneous electro-Fenton reaction occurring on the surface of the CuFeKao particle electrode. |
| format | Article |
| id | doaj-art-eaaa84d96bb8453a9a7ca314c1b9e0c5 |
| institution | DOAJ |
| issn | 1005-829X |
| language | zho |
| publishDate | 2025-02-01 |
| publisher | Editorial Office of Industrial Water Treatment |
| record_format | Article |
| series | Gongye shui chuli |
| spelling | doaj-art-eaaa84d96bb8453a9a7ca314c1b9e0c52025-08-20T02:45:02ZzhoEditorial Office of Industrial Water TreatmentGongye shui chuli1005-829X2025-02-01452546210.19965/j.cnki.iwt.2024-02501005-829X（2025）02-0054-09Degradation of methylene blue by three-dimensional heterogeneous electro-Fenton system with CuFeKao particle electrodeCHEN Yue0PENG Xueer1ZHOU Chenyang2LI Jing3MENG Xinyi4GAO Lili5School of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong 030600, ChinaSchool of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong 030600, ChinaSchool of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong 030600, ChinaSchool of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong 030600, ChinaSchool of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong 030600, ChinaSchool of Environmental Science and Engineering, Taiyuan University of Technology, Jinzhong 030600, ChinaCuFe2O4/Fe2O3/Kaolin(CuFeKao) catalytic particle electrode was synthesized by sol-gel method and used in three-dimensional heterogeneous electro-Fenton system to degrade Methylene blue(MB). XRD results showed that CuFeKao was a composite material composed of CuFe2O4, Fe2O3 and Kaolin. Through comparative experiments, it was found that three-dimensional electrochemical interactions could increase the yield of H2O2, and heterogeneous electro-Fenton systems could catalyze the in-situ conversion of H2O2 to ·OH. Compared with 3D systems using CuFe2O4/Fe2O3 or Kaolin as particle electrode and 2D systems, the 3D/EF/CuFeKao system exhibited the highest ·OH yield and the best MB degradation effect. The degradation conditions of the 3D/EF/CuFeKao system were optimized by single factor experiments. Under the optimized conditions, the removal rates of MB and TOC could reach 99.81% and 58.13% respectively after 60 minutes of reaction. The quenching of free radicals confirmed that the system contained two reactive oxygen species, ·OH and O2·-, whose relative proportions could be regulated by solution pH. Mechanism analysis showed that the main mechanism of MB degradation in the 3D/EF/CuFeKao system is the heterogeneous electro-Fenton reaction occurring on the surface of the CuFeKao particle electrode.https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2024-0250cu-fe bimetalkaolinthree-dimensional heterogeneous electro-fentonmethylene blue |
| spellingShingle | CHEN Yue PENG Xueer ZHOU Chenyang LI Jing MENG Xinyi GAO Lili Degradation of methylene blue by three-dimensional heterogeneous electro-Fenton system with CuFeKao particle electrode Gongye shui chuli cu-fe bimetal kaolin three-dimensional heterogeneous electro-fenton methylene blue |
| title | Degradation of methylene blue by three-dimensional heterogeneous electro-Fenton system with CuFeKao particle electrode |
| title_full | Degradation of methylene blue by three-dimensional heterogeneous electro-Fenton system with CuFeKao particle electrode |
| title_fullStr | Degradation of methylene blue by three-dimensional heterogeneous electro-Fenton system with CuFeKao particle electrode |
| title_full_unstemmed | Degradation of methylene blue by three-dimensional heterogeneous electro-Fenton system with CuFeKao particle electrode |
| title_short | Degradation of methylene blue by three-dimensional heterogeneous electro-Fenton system with CuFeKao particle electrode |
| title_sort | degradation of methylene blue by three dimensional heterogeneous electro fenton system with cufekao particle electrode |
| topic | cu-fe bimetal kaolin three-dimensional heterogeneous electro-fenton methylene blue |
| url | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2024-0250 |
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