Volume 56, Issue 6 p. 1667-1670
Communication

Removal of Multiple Contaminants from Water by Polyoxometalate Supported Ionic Liquid Phases (POM-SILPs)

Dr. Sven Herrmann,

Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany

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Dr. Laura De Matteis,

Instituto de Nanosciencia de Aragon (INA), Universidad de Zaragoza and CIBER-BBN, C/ Mariano Esquillor s/n, 50018 Zaragoza, Spain

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Dr. Jesús M. de la Fuente,

Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC), CISC-Universidad de Zaragoza and CIBER-BBN, C/Pedro Cerbuna 12, 50019 Zaragoza, Spain

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Dr. Scott G. Mitchell,

Corresponding Author

Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC), CISC-Universidad de Zaragoza and CIBER-BBN, C/Pedro Cerbuna 12, 50019 Zaragoza, Spain

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Prof. Dr. Carsten Streb,

Corresponding Author

Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany

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First published: 12 January 2017
Citations: 71

Abstract

The 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.

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