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Facile fabrication of robust MOF membranes on cloth via a CMC macromolecule bridge for highly efficient Pb(II) removal
Yang, Weixia ; Wang, Jing ; Yang, Qingfeng ; Pei, Hanna ; Hu, Na ; Suo, Yourui ; Li, Zhonghong ; Zhang, Daohong ; Wang, Jianlong
2018-05-01
发表期刊CHEMICAL ENGINEERING JOURNAL
摘要Developing highly uniform and compact metal-organic frameworks (MOFs) membranes grown on flexible substrate such as cloth for highly efficient heavy metal removal is an appealing yet challenging task. Herein, we demonstrate a facile route to rapidly in situ synthesize Zn/Co-ZIF crystals onto cloth to form robust and compact MOF membranes at room temperature. Carboxymethylcellulose sodium (CMC) is introduced to act as a macromolecule bridge to promote the chemical surface attachment of Zn/Co-Zeolite Imidazolate Frameworks (Zn/Co-ZIF) crystals while simultaneously impeding solution-phase crystal agglomeration. SEM, XRD and FT-IR spectra were used to characterize the CMC-MOF/Cloth composite membranes. Benefiting from the intrinsic properties of Zn/Co-ZIF, the CMC-MOF/Cloth shows remarkable selectivity and excellent adsorption capacity (862.44 mg g(-1)) toward Pb(II). Detailed adsorption behaviour and mechanism are revealed by batch sorption runs with Pb(II) and a series of structural characterizations, respectively. In addition, the CMC-MOF/Cloth composite membranes can rapidly decontaminate the concentration of Pb(II) with good removal efficiency using a filtration apparatus, as well as exhibit splendid reusability for multiple regeneration cycles, which demonstrate the CMC-MOF/Cloth composite membranes, being as an efficient, low-cost, easy-obtained, and environmental-friendly MOF-based membranes, possesses great potential for the removal of Pb(II) in water purification.
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/34028
专题中国科学院西北高原生物研究所
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GB/T 7714
Yang, Weixia,Wang, Jing,Yang, Qingfeng,et al. Facile fabrication of robust MOF membranes on cloth via a CMC macromolecule bridge for highly efficient Pb(II) removal[J]. CHEMICAL ENGINEERING JOURNAL,2018.
APA Yang, Weixia.,Wang, Jing.,Yang, Qingfeng.,Pei, Hanna.,Hu, Na.,...&Wang, Jianlong.(2018).Facile fabrication of robust MOF membranes on cloth via a CMC macromolecule bridge for highly efficient Pb(II) removal.CHEMICAL ENGINEERING JOURNAL.
MLA Yang, Weixia,et al."Facile fabrication of robust MOF membranes on cloth via a CMC macromolecule bridge for highly efficient Pb(II) removal".CHEMICAL ENGINEERING JOURNAL (2018).
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