Ionic Liquid for Water Purification

Ionic liquids are molten-organic salts with exceptional thermodynamics stability, nonvolatile character, and plenty of structural arrangements or designs. These liquids can offer limitless applications for chemistry (catalysis), separation science (food and pharmaceutical industry), and electrolytes in wearable electronics. Subsequent to air, access to sufficient amount of safe drinking water is essential for life prevalence and critical part of health protection activities. Water of every origin may have some or other contaminants and eventually may require miscellaneous extent of treatment or purification. A great deal of research and investment has been made by World Health Organization and other water- and health-regulating bodies/agencies to assess, purify, and supply water. Likewise, in the catalysis, food, and pharmaceutical industries, the ionic liquid for their unique structures and designs may provide a wide range of sustainable and green opportunities for water purification. This chapter critically analyzes the potential of ionic liquids to solve water purification paradigm in a more sustainable way.