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Water, Air, and Soil Pollution

, 224:1759

First Online: 13 October 2013Received: 25 June 2013Accepted: 25 September 2013


With the constant development of new ionic liquids, the understanding of the chemical fate of these compounds also needs to be updated. To this effect, the interaction of a number of novel ionic liquids with soils was determined. Therefore, three novel headgroups ammonium, phosphonium, or pyrrolidinium with single or quaternary substitution were tested on a variety of soils with high-to-low organic matter content and high-to-low cation exchange capacity, thereby trying to capture the full range of possible soil interactions. It was found that the ionic liquids with single butyl alkyl chain interacted more strongly with the soils especially with a higher cation exchange capacity, at lower concentrations, than the quad-substituted ionic liquids. However, the quad-substituted ionic liquids interacted more strongly at higher concentrations, due to the double-layer formation, and induced stronger dipole interaction with previously sorbed molecules.

KeywordsSorption Ionic liquids Ammonium Phosphonium Pyrrolidinium Imidazolium Natural soils  Download fulltext PDF

Autor: Wojciech Mrozik - Christian Jungnickel - Monika Paszkiewicz - Piotr Stepnowski


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