| Fe@Co/NC改性石墨毡在电芬顿体系降解EDTA-Ni的研究 |
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| 引用本文： | 张君亚,陈元彩,胡勇有.Fe@Co/NC改性石墨毡在电芬顿体系降解EDTA-Ni的研究[J].环境科学学报,2018,38(11):4313-4320. |
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| 作者姓名： | 张君亚 陈元彩 胡勇有 |
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| 作者单位： | 华南理工大学环境与能源学院, 工业聚集区污染控制与生态修复教育部重点实验室, 广州 510006,华南理工大学环境与能源学院, 工业聚集区污染控制与生态修复教育部重点实验室, 广州 510006,华南理工大学环境与能源学院, 工业聚集区污染控制与生态修复教育部重点实验室, 广州 510006 |
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| 基金项目： | 国家自然科学基金（No.21677052）；广东省水利科技创新项目（No.2017-25）；广州市产学研协同创新重大专项（No.201604010043） |
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| 摘 要： | 采用Fe掺杂MOF前驱体ZIF-67(Fe@ZIF-67)为模版,通过煅烧制备了掺杂铁元素的金属有机框架衍生物(Fe@Co/NC).同时,首次采用Fe@Co/NC复合材料改性的石墨毡(Fe@Co/NC/GF)为阴极和石墨毡(GF)为阳极构建了电芬顿体系,研究了复合电极对络合重金属EDTA-Ni的去除效果.结果表明,Co/Fe、N掺杂的碳基催化剂具有高含量的吡啶氮(2.42%)和石墨氮(3.23%),提供了大量催化活性位点(C—N、Co—N_x),从而有效改善了催化剂氧还原的性能.在pH为3,Na_2SO_4浓度为0.1 mol·L~(-1),应用电流为40 mA的最佳条件下,反应120 min后,Fe@Co/NC/GF电芬顿体系对EDTA-Ni的降解率达到了97.4%,且有效拓宽了pH的应用范围.
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| 关 键 词： | ZIF-67 Fe@Co/NC/GF 电芬顿体系 EDTA-Ni |
| 收稿时间： | 2018/4/6 0:00:00 |
| 修稿时间： | 2018/5/13 0:00:00 |
Degradation of EDTA-Ni wastewater by Fe@N-doped carbon-stabilized Co nanoparticles materials supported graphite felt in electro-Fenton system |
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| ZHANG Juny,CHEN Yuancai and HU Yongyou.Degradation of EDTA-Ni wastewater by Fe@N-doped carbon-stabilized Co nanoparticles materials supported graphite felt in electro-Fenton system[J].Acta Scientiae Circumstantiae,2018,38(11):4313-4320. |
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| Authors: | ZHANG Juny CHEN Yuancai and HU Yongyou |
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| Institution: | The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou 510006,The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou 510006 and The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou 510006 |
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| Abstract: | In this study, iron doped metal-organic framework derivate (Fe@Co/NC) was synthesized by calcining Fe@ZIF-67 precursor. This was the first time for the catalyst prepared by supporting Fe@Co/NC on graphite felt as the cathode and graphite felt as the anode to explore the degradation efficiency of EDTA-Ni in electro-Fenton (EF) system. The results indicated that as Co/Fe, N-incorporated carbon-based catalyst, Fe@Co/NC with the large amount of pyridinic nitrogen(2.42%) and graphitic nitrogen(3.23%) could provide abundant active sites (C-N, Co-Nx), resulting in the improve of ORR electrocatalytic activity. In the best conditions of pH=3, 0.1 mol·L-1 Na2SO4 and 40 mA, the removal efficiency of EDTA-Ni reached 97.4% after 120 min in the Fe@Co/NC/GF-EF system. And it effectively broadened the application range of pH. |
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| Keywords: | ZIF-67 Fe@Co/NC/GF electro-Fenton EDTA-Ni |
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