Facile microwave-assisted production of Fe3O4 decorated porous melamine-based covalent organic framework for highly selective removal of Hg2+

被引：90
作者：
Ge, Jinlong [1 ,2 ]
Xiao, Juanding [1 ]
Liu, Lingli [1 ]
Qiu, Lingguang [1 ]
Jiang, Xia [1 ]
机构：
[1] Anhui Univ, Sch Chem & Chem Engn, Lab Adv Porous Mat, Hefei 230601, Peoples R China
[2] Bengbu Univ, Dept Appl Chem & Environm Engn, Bengbu 233030, Peoples R China
来源：
JOURNAL OF POROUS MATERIALS | 2016年 / 23卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Covalent organic frameworks; Removal; Fe3O4; Hg2+; HEAVY-METAL REMOVAL; EFFICIENT REMOVAL; QUANTUM DOTS; MAGNETIC NANOPARTICLES; COLORIMETRIC DETECTION; SURFACE MODIFICATION; AQUEOUS-SOLUTION; ADSORPTION; MERCURY; WATER;
D O I：
10.1007/s10934-016-0134-y
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Well dispersed magnetic Fe3O4 decorated porous melamine-based covalent organic frameworks (M-COFs) were facilely fabricated through a microwave-assisted process. The result showed that magnetic M-COFs possess large surface areas of 344-600 m(2) g(-1) and good magnetic separation performance (M-S = 0.75-3.59 emu g(-1)). Adsorption properties were preliminarily tested by the adsorptive removal of heavy metal ions from waste water. Remarkably, the as-synthesized Fe3O4/M-COFs display highly selective adsorption of Hg2+ with high adsorption capacity (97.65 mg g(-1)). This highly selective removal of Hg2+ was caused by the high density of N group in M-COFs. In addition, this selective adsorption of Hg2+ was not interfered with other metal ions such as Na+, Cd2+, Zn2+, Ni2+, Pb2+, Mg2+ and Cr3+.
引用
收藏
页码：791 / 800
页数：10
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