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UiO-66(Zr)@多孔陶瓷复合材料的制备及对络合态重金属EDTA-Cu(Ⅱ)的去除

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陈倩, 吴一楠, 蒋天遥, 张彦星, 郑璐, 李风亭. UiO-66(Zr)@多孔陶瓷复合材料的制备及对络合态重金属EDTA-Cu(Ⅱ)的去除[J]. 环境化学, 2020, (3): 677-686. doi: 10.7524/j.issn.0254-6108.2019103108
引用本文: 陈倩, 吴一楠, 蒋天遥, 张彦星, 郑璐, 李风亭. UiO-66(Zr)@多孔陶瓷复合材料的制备及对络合态重金属EDTA-Cu(Ⅱ)的去除[J]. 环境化学, 2020, (3): 677-686. doi: 10.7524/j.issn.0254-6108.2019103108
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CHEN Qian, WU Yinan, JIANG Tianyao, ZHANG Yanxing, ZHENG Lu, LI Fengting. Synthesis of UiO-66(Zr)@porous ceramic composite for the removal of EDTA-Cu(Ⅱ) complex[J]. Environmental Chemistry, 2020, (3): 677-686. doi: 10.7524/j.issn.0254-6108.2019103108
Citation: CHEN Qian, WU Yinan, JIANG Tianyao, ZHANG Yanxing, ZHENG Lu, LI Fengting. Synthesis of UiO-66(Zr)@porous ceramic composite for the removal of EDTA-Cu(Ⅱ) complex[J]. Environmental Chemistry, 2020, (3): 677-686. doi: 10.7524/j.issn.0254-6108.2019103108
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UiO-66(Zr)@多孔陶瓷复合材料的制备及对络合态重金属EDTA-Cu(Ⅱ)的去除

  • 1. 同济大学环境科学与工程学院, 污染控制与资源化研究国家重点实验室, 上海, 200092;

  • 2. 上海污染控制与生态安全研究院, 上海, 200092

    • 通讯作者: 吴一楠, E-mail: 51n@tongji.edu.cn ; 
  • 基金项目:

    国家自然科学基金（21777119）和上海市科委"一带一路"国际合作项目（18230742300）资助.

Synthesis of UiO-66(Zr)@porous ceramic composite for the removal of EDTA-Cu(Ⅱ) complex

  • 1. College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, 200092, China;

  • 2. Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China

    • Corresponding author: WU Yinan, 51n@tongji.edu.cn ; 
  • Fund Project: Supported by the National Natural Science Foundation of China(21777119)and the Science and Technology Commission of Shanghai Municipality "The Belt and Road Initiative" Program(18230742300).

  • 摘要: 本文采用多孔陶瓷作为基体制备了锆基金属有机骨架UiO-66@多孔陶瓷复合材料.通过扫描电子显微镜（SEM）、粉末X射线衍射（PXRD）、氮气吸附和傅里叶变换红外光谱（FTIR）等表征手段对比了氢氧化钠脱硅和乙二胺表面改性等基体活化方式对UiO-66（Zr）在多孔陶瓷表面负载情况的影响.结果表明，经过乙二胺表面改性的多孔陶瓷对UiO-66（Zr）的负载更均匀，负载效果更好.以EDTA-Cu（Ⅱ）为考察对象，研究了UiO-66（Zr）@乙二胺表面改性多孔陶瓷复合材料对络合态重金属的净化效能.结果表明，UiO-66（Zr）@多孔陶瓷复合材料在较宽的酸碱条件下（pH=3-9）对络合态重金属EDTA-Cu（Ⅱ）均表现出良好的吸附性能，饱和吸附量为1.17 mg·g-1，并可通过NaOH解吸再生，从而实现材料的重复利用.
    Abstract: In this work, zirconium-based metal-organic frameworks, UiO-66 has successfully deposited on commercial porous ceramics. The feasibility of two activation methods of porous ceramic matrix, desiliconization by sodium hydroxide (NaOH) and ethylenediamine modification for the loading of UiO-66(Zr), were investigated by scanning electron microscopy (SEM), powder X-ray diffraction (PXRD), nitrogen adsorption, Fourier transform infrared spectroscopy (FT-IR), and so on. The results showed that the porous ceramics modified by ethylenediamine exhibited more uniform and better loading of UiO-66(Zr) than bare porous ceramics and that desilicated by NaOH. The application of UiO-66(Zr)@porous ceramic modified by ethylenediamine composite for the removal of ethylendiaminetetraacetate-copper (Ⅱ) (EDTA-Cu(Ⅱ)) complex was studied. It was found that, both in acidic and alkaline environment (pH=3-9), UiO-66(Zr)@porous ceramic composite exhibited a high adsorption capacity of EDTA-Cu(Ⅱ) complex (1.17 mg·g-1). Furthermore, the capacity can be almost fully regenerated through the desorption by NaOH solution, demonstrating that an excellent recyclability of this material.
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  • 收稿日期:  2019-10-31

UiO-66(Zr)@多孔陶瓷复合材料的制备及对络合态重金属EDTA-Cu(Ⅱ)的去除

    通讯作者: 吴一楠, E-mail: 51n@tongji.edu.cn ; 
  • 1. 同济大学环境科学与工程学院, 污染控制与资源化研究国家重点实验室, 上海, 200092;
  • 2. 上海污染控制与生态安全研究院, 上海, 200092
  • 收稿日期:  2019-10-31
基金项目:

国家自然科学基金（21777119）和上海市科委"一带一路"国际合作项目（18230742300）资助.

摘要: 本文采用多孔陶瓷作为基体制备了锆基金属有机骨架UiO-66@多孔陶瓷复合材料.通过扫描电子显微镜（SEM）、粉末X射线衍射（PXRD）、氮气吸附和傅里叶变换红外光谱（FTIR）等表征手段对比了氢氧化钠脱硅和乙二胺表面改性等基体活化方式对UiO-66（Zr）在多孔陶瓷表面负载情况的影响.结果表明，经过乙二胺表面改性的多孔陶瓷对UiO-66（Zr）的负载更均匀，负载效果更好.以EDTA-Cu（Ⅱ）为考察对象，研究了UiO-66（Zr）@乙二胺表面改性多孔陶瓷复合材料对络合态重金属的净化效能.结果表明，UiO-66（Zr）@多孔陶瓷复合材料在较宽的酸碱条件下（pH=3-9）对络合态重金属EDTA-Cu（Ⅱ）均表现出良好的吸附性能，饱和吸附量为1.17 mg·g-1，并可通过NaOH解吸再生，从而实现材料的重复利用.

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