A Water-Stable Cationic Metal-Organic Framework as a Dual Adsorbent of Oxoanion Pollutants

被引：324
作者：
Desai, Aamod V. [1 ]
Manna, Biplab [1 ]
Karmakar, Avishek [1 ]
Sahu, Amit [1 ]
Ghosh, Sujit K. [1 ]
机构：
[1] Indian Inst Sci Educ & Res IISER, Dept Chem, Dr Homi Bhabha Rd, Pune 411008, Maharashtra, India
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2016年 / 55卷 / 27期
关键词：
adsorption; anions; environment chemistry; metal-organic frameworks; sensors; ANION-RESPONSIVE LUMINESCENCE; SINGLE-CRYSTAL; COORDINATION POLYMERS; STRUCTURAL TRANSFORMATION; SELECTIVE UPTAKE; LAYERED MATERIAL; HIGH-CAPACITY; ION-EXCHANGE; SEPARATION; REMOVAL;
D O I：
10.1002/anie.201600185
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A three-dimensional water-stable cationic metal-organic framework (MOF) pillared by a neutral ligand and with Ni-II metal nodes has been synthesized employing a rational design approach. Owing to the ordered arrangement of the uncoordinated tetrahedral sulfate (SO42-) ions in the channels, the compound has been employed for aqueous-phase ion-exchange applications. The compound exhibits rapid and colorimetric aqueous-phase capture of environmentally toxic oxoanions (with similar geometries) in a selective manner. This system is the first example of a MOF-based system which absorbs both dichromate (Cr2O72-) and permanganate (MnO4-) ions, with the latter acting as a model for the radioactive contaminant pertechnetate (TcO4-).
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收藏
页码：7811 / 7815
页数：5
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