title: Removal of Multiple Contaminants from Water by Polyoxometalate Supported Ionic Liquid Phases (POM-SILPs).
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.
authors.affiliation: Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
authors.forename: Sven
authors.initials: S
authors.lastname: Herrmann
authors.affiliation: Instituto de Nanosciencia de Aragon (INA), Universidad de Zaragoza and CIBER-BBN, C/ Mariano Esquillor s/n, 50018, Zaragoza, Spain.
authors.forename: Laura
authors.identifier: 0000-0001-6995-4302
authors.initials: L
authors.lastname: De Matteis
authors.affiliation: Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC), CISC-Universidad de Zaragoza and CIBER-BBN, C/Pedro Cerbuna 12, 50019, Zaragoza, Spain.
authors.forename: Jesús M
authors.identifier: 0000-0003-1081-8482
authors.initials: JM
authors.lastname: de la Fuente
authors.affiliation: Instituto de Ciencia de Materiales de Aragon (ICMA-CSIC), CISC-Universidad de Zaragoza and CIBER-BBN, C/Pedro Cerbuna 12, 50019, Zaragoza, Spain.
authors.forename: Scott G
authors.identifier: 0000-0003-4848-414X
authors.initials: SG
authors.lastname: Mitchell
authors.affiliation: Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
authors.forename: Carsten
authors.identifier: 0000-0002-5846-1905
authors.initials: C
authors.lastname: Streb
keywords: ionic liquids; metal oxides; polyoxometalates; self-assembly; water purification