期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 61, 期 32, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202203385
关键词
Aerogel; Chemical Separation; Hybrid Composite; Metal-Organic Gel; Metal-Organic Polyhedra
资金
- DST-Inspire fellowship [DST/INSP IRE/03/2016/001694]
- IISER Pune
- U.G.C.
- DST-SERB [CRG/2019/000906]
This study developed a unique composite aerogel material that demonstrated high selectivity and fast segregation efficiency for hazardous oxoanions, even in the presence of other coexisting anions.
Metal-based oxoanions are potentially toxic pollutants that can cause serious water pollution. Therefore, the segregation of such species has recently received significant research attention. Even though several adsorbents have been employed for effective management of chemicals, their limited microporous nature along with non-monolithic applicability has thwarted their large-scale real-time application. Herein, we developed a unique anion exchangeable hybrid composite aerogel material (IPcomp-6), integrating a stable cationic metal-organic polyhedron with a hierarchically porous metal-organic gel. The composite scavenger demonstrated a highly selective and very fast segregation efficiency for various hazardous oxoanions such as, HAsO42-, SeO42-, ReO4-, CrO42-, MnO4-, in water, in the presence of 100-fold excess of other coexisting anions. The material was able to selectively eliminate trace HAsO42- even at low concentration to well below the As-v limit in drinking water defined by WHO.
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