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.

引用

页数：8

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