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Removal of multiple contaminants from water by polyoxometalate supported ionic liquid phases (POM-SILPs)

AutorHerrmann, Sven; Matteis, Laura de; Fuente, Jesús M. de la; Mitchell, Scott G.; Streb, Carsten
Palabras claveMetal oxides
Ionic liquids
Polyoxometalates
Self-assembly
Water purification
Fecha de publicación2017
EditorWiley-VCH
CitaciónAngewandte Chemie International Edition 56(6): 1667-1670 (2017)
ResumenThe simultaneous removal of organic, inorganic, and microbial contaminants from water by one material offers significant advantages when fast, facile, and robust water purification is required. Herein, we present a supported ionic liquid phase (SILP) composite where each component targets a specific type of water contaminant: a polyoxometalate-ionic liquid (POM-IL) is immobilized on porous silica, giving the heterogeneous SILP. The water-insoluble POM-IL is composed of antimicrobial alkylammonium cations and lacunary polyoxometalate anions with heavy-metal binding sites. The lipophilicity of the POM-IL enables adsorption of organic contaminants. The silica support can bind radionuclides. Using the POM-SILP in filtration columns enables one-step multi-contaminant water purification. The results show how multi-functional POM-SILPs can be designed for advanced purification applications.
URIhttp://hdl.handle.net/10261/148742
DOI10.1002/anie.201611072
Identificadoresdoi: 10.1002/anie.201611072
e-issn: 1521-3773
issn: 1433-7851
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