| 应用铁铜双金属有机骨架活化过硫酸盐催化剂去除水中有机污染物的研究 |
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| 引用本文： | 段美娟,马邕文,万金泉,王艳,刘林.应用铁铜双金属有机骨架活化过硫酸盐催化剂去除水中有机污染物的研究[J].环境科学学报,2017,37(5):1742-1750. |
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| 作者姓名： | 段美娟 马邕文 万金泉 王艳 刘林 |
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| 作者单位： | 华南理工大学环境与能源学院, 广州 510006,1. 华南理工大学环境与能源学院, 广州 510006;2. 华南理工大学教育部工业聚集区域污染控制与修复重点实验室, 广州 510006;3. 华南理工大学制浆造纸国家重点实验室, 广州 510006,1. 华南理工大学环境与能源学院, 广州 510006;2. 华南理工大学教育部工业聚集区域污染控制与修复重点实验室, 广州 510006;3. 华南理工大学制浆造纸国家重点实验室, 广州 510006,1. 华南理工大学环境与能源学院, 广州 510006;2. 华南理工大学教育部工业聚集区域污染控制与修复重点实验室, 广州 510006;3. 华南理工大学制浆造纸国家重点实验室, 广州 510006,华南理工大学环境与能源学院, 广州 510006 |
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| 基金项目： | 国家自然科学基金（No.31570568）；中国制浆造纸工程国家重点实验室项目（No.201535）；广东省高层次人才基金项目（No.2013） |
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| 摘 要： | 基于MIL-101(Fe)的合成方法,首次采用合成前金属掺杂法制备了双金属有机骨架MIL-101(Fe,Cu)催化剂,并利用X射线衍射仪(XRD)、傅里叶变换红外光谱仪(FTIR)、扫描电镜(SEM)和X射线能谱仪(EDS)对催化剂进行表征.同时,以罗丹明B(Rh B)为目标降解物,研究此催化剂催化过硫酸盐降解Rh B的性能,并初步尝试将催化剂应用于邻苯二甲酸二丁酯(DBP)的催化降解.XRD、FTIR、SEM和EDS等分析结果表明,铜离子的掺杂导致MIL-101(Fe)的结构与形貌发生了改变,提高了对污染物的吸附和催化降解作用.相比MIL-101(Fe),在90 min时MIL-101(Fe,Cu)对Rh B的去除率达到95%,在180 min时对DBP的去除率达到68%.此外,分析了催化剂催化性能提高的原因:配位竞争导致铁离子的不饱和趋向;形貌的变化加强了对污染物的吸附作用.
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| 关 键 词： | MIL-101(Fe) MIL-101(Fe Cu) 过硫酸盐活化 罗丹明B(RhB) 邻苯二甲酸二丁酯(DBP) |
| 收稿时间： | 2016/8/29 0:00:00 |
| 修稿时间： | 2016/11/8 0:00:00 |
Novel bimetallic metal-organic frameworks activated persulfate processes for the removal of organic contaminants in water |
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| DUAN Meijuan,MA Yongwen,WAN Jinquan,WANG Yan and LIU Lin.Novel bimetallic metal-organic frameworks activated persulfate processes for the removal of organic contaminants in water[J].Acta Scientiae Circumstantiae,2017,37(5):1742-1750. |
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| Authors: | DUAN Meijuan MA Yongwen WAN Jinquan WANG Yan and LIU Lin |
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| Institution: | College of Environment and Energy, South China University of Technology, Guangzhou 510006,1. College of Environment and Energy, South China University of Technology, Guangzhou 510006;2. The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006;3. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510006,1. College of Environment and Energy, South China University of Technology, Guangzhou 510006;2. The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006;3. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510006,1. College of Environment and Energy, South China University of Technology, Guangzhou 510006;2. The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006;3. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510006 and College of Environment and Energy, South China University of Technology, Guangzhou 510006 |
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| Abstract: | A novel bimetallic MIL-101(Fe,Cu) catalyst was fabricated for the first time based on the pre-synthesis of MIL-101(Fe). The catalyst was characterized by XRD, FTIR, SEM and EDS. The catalytic performance of MIL-101(Fe, Cu) was tested to activate persulfate(PS) for the removal of Rhodamine(RhB)as well as dibutylphthalate(DBP) in water. Characterization results show great alterations in structure and morphology due to Cu2+ doping, which enhanced the adsorption and catalytic capacity to contaminants. The removal rate of MIL-101(Fe,Cu) for RhB in 90 min and DBP in 180 min was 95%, 68% respectively, which is more efficient than that of MIL-101(Fe). The reasons for the enhancement in catalytic capacity have also been proposed. Iron sites may turn to be unsaturated due to coordination competition and stronger adsorption brought by morphology alterations. |
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| Keywords: | MIL-101(Fe) MIL-101(Fe Cu) persulfate activation RhB DBP |
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