Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
Instituto de Nanosciencia de Aragon (INA), Universidad de Zaragoza and CIBER-BBN, C/ Mariano Esquillor s/n, 50018, Zaragoza, Spain.
Angew Chem Int Ed Engl. 2017 Feb 1;56(6):1667-1670. doi: 10.1002/anie.201611072. Epub 2017 Jan 12.
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.
当需要快速、简便和强大的水净化时，一种材料同时去除水中的有机、无机和微生物污染物具有显著的优势。在此，我们提出了一种负载离子液体相（SILP）复合材料，其中每个组分针对特定类型的水污染物：将多金属氧酸盐-离子液体（POM-IL）固定在多孔硅上，得到多相 SILP。水不溶性 POM-IL 由具有重金属结合位点的抗菌烷基铵阳离子和缺电子多金属氧酸盐阴离子组成。POM-IL 的亲脂性使其能够吸附有机污染物。硅胶载体可以结合放射性核素。在过滤柱中使用 POM-SILP 可以实现一步多污染物水净化。结果表明，如何为先进的净化应用设计多功能 POM-SILP。
