铁基MOF/还原石墨烯复合泡沫镍降解罗丹明B的研究  

Degradation of Rhodamine B by iron-based MOF/reduced graphene modified nickel foam

作　　者：高樱 谢芳舒 林歆昊 朱维晃[3] GAO Ying;XIE Fang-shu;LIN Xin-hao;ZHU Wei-huang(School of Intelligent Construction and Environment,City College,Xi’an Jiaotong University,Xi’an 710018,China;School of Environmental Science and Engineering,Shaanxi University of Science and Technology,Xi’an 710016,China;School of Environmental and Municipal Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China;The Northwest Branch Company of China Construction Eighth Engineering Division Corp.,Ltd.,Xi’an 710061,China)

机构地区：[1]西安交通大学城市学院,智能建造与环境学院,陕西西安710018 [2]陕西科技大学环境科学与工程学院,陕西西安710016 [3]西安建筑科技大学环境与市政工程学院,陕西西安710055 [4]中国建筑第八工程局有限公司西北分公司,陕西西安710061

出　　处：《现代化工》2025年第4期147-152,共6页Modern Chemical Industry

基　　金：中国博士后科学基金(2024MD763996);西安市青年人才托举计划资助项目(959202313073)。

摘　　要：为改善传统电芬顿氧化技术对污染物降解效率有限和添加的可溶性二价铁(Fe^(2+))导致二次污染等问题,通过水热-煅烧法构建出还原石墨烯/铁基MOF修饰的泡沫镍(rGO/MIL-88A/NF)电芬顿阴极。通过仪器分析与电化学测试确定了rGO/MIL-88A/NF的物化性能与电化学活性。以罗丹明B(RhB)为目标污染物,研究rGO/MIL-88A/NF阴极对RhB的降解性能,以及不同电位与pH条件对体系降解RhB的影响。结合淬灭实验与XPS分析,探究rGO/MIL-88A/NF降解污染物的运行机理。结果表明,rGO/MIL-88A/NF无需外界投加H_(2)O_(2)与Fe^(2+),为高效降解污染物的新型电芬顿阴极开发提供研究基础与思路。The traditional electro-Fenton oxidation technology has a limited efficiency in degrading pollutants,and will lead to the secondary pollution due to the addition of soluble divalent iron(Fe^(2+)).In order to solve these issues,a reduced graphene/iron-based MOF modified nickel foam(rGO/MIL-88A/NF)electro-Fenton cathode is constructed via hydrothermal-calcination method.Through instrument characterization and electrochemical testing,the physicochemical properties and electrochemical activity of rGO/MIL-88A/NF are clarified.Taking Rhodamine B(RhB)as the target pollutant,the degradation performance of rGO/MIL-88A/NF cathode to RhB is studied,and the influences of different potentials and pH conditions on the degradation of RhB by the cathode are explored.Combined with the quenching experiment and XPS analysis,the operational mechanism for rGO/MIL-88A/NF in degrading pollutants is researched.It is found that rGO/MIL-88A/NF does not require external addition of H_(2)O_(2)and Fe^(2+),which provides a research foundation and approach for the development of a novel electro-Fenton cathode that can remove pollutants efficiently.

关 键 词：铁基MOF 还原石墨烯 阴极 电芬顿 

分 类 号：X703[环境科学与工程—环境工程]