Properties of Acetamide-Alanine Eutectic Ionic Liquid and its Application in Soil Heavy Metal Cd²⁺ Remediation

Abstract:

In order to explore the feasibility of a class of eutectic ionic liquids in soil heavy metal repair problems. The acetamide-alanine eutectic ionic liquid was prepared and its properties of density, viscosity, surface tension and electrical conductivity were measured, and it’s application effect of Cd²⁺ extraction in soil was studied. The results showed that the extraction amount of Cd²⁺ in soil by the acetamide-alanine eutectic ionic liquid with a concentration of 0.6 mol/L reached the maximum of 99.67%. The physical properties of a melamine-alanine eutectic ionic liquid having a concentration of 0.6 mol/L at a temperature range of 303.15 K-343.15 K were determined. The 0.6 mol/L acetamide-alanine eutectic ionic liquid was compared with the ionic liquid and the related organic acid aqueous solution prepared under the same conditions, and the acetamide-alanine eutectic prepared by the experiment was found to be eutectic. The ionic liquid has better extraction efficiency for heavy metal Cd²⁺ under the same conditions, and is a good soil heavy metal extractant.

• Periodical: Key Engineering Materials (Volume 842)
• Pages: 115-120
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.842.115
• Online since: May 2020
• Authors: Bao You Liu*, Feng Li, Jie Tian, Hui Long Yang
• Keywords: Acetamide, Alanine, Cd²⁺, Eutectic Ionic Liquids, Physical Property, Soil Heavy Metal Repair

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