Enhancing water stability of MIL-101(Cr) by doping Ni(II)

被引：57
作者：
Qiu, Shuying [1 ]
Wang, Yan [1 ,2 ,3 ]
Wan, Jinquan [1 ,2 ,3 ]
Han, Jinye [1 ]
Ma, Yongwen [1 ,2 ,3 ]
Wang, Silong [1 ]
机构：
[1] South China Univ Technol, Coll Environm & Energy, Guangzhou 510006, Peoples R China
[2] Sino Singapore Int Joint Res Inst, Guangzhou 510006, Peoples R China
[3] Guangdong Plant Fiber High Valued Cleaning Utiliz, Guangzhou 510006, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2020年 / 525卷 / 525期
基金：
中国国家自然科学基金;
关键词：
Metal-organic frameworks; MIL-101(Cr); Water stability; Ni-doped; Aqueous solution; METAL-ORGANIC-FRAMEWORKS; ADSORPTION; MIL-53; CU; TETRACYCLINE; NANOPARTICLE; ADSORBENT; REMOVAL; MOF;
D O I：
10.1016/j.apsusc.2020.146511
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ni(II) ions doped MIL-101(Cr) metal organic framework materials were synthesized for the first time by pre-synthesis doping to improve their water stability. The samples were characterized by X-ray diffraction (XRD), infrared spectroscopy (IR), scanning electron microscopy (SEM), energy-dispersive spectroscopy instrument (EDS), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and N2 adsorption-desorption measurements, which persuasively demonstrated the effective combination of Ni(II) ions with the framework. The results showed that compared with undoped MIL-101(Cr), Ni-doped MIL-101(Cr) retained the original large specific surface area and pore size characteristics, and significantly improves the water stability of the skeleton. The water stability of Ni-doped MIL-101(Cr) in water environment with different pH has been significantly improved, which has important guiding significance for the application of MOFs in practical engineering.
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页数：8
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