This document discusses the use of ionic liquids as replacements for organic solvents in industries and factories to reduce air pollution. It examines the properties of various protic ionic liquids, alkali molten salts, and composite materials containing ionic liquids and zeolites. The interactions within these materials, including Coulombic, van der Waals, and hydrogen bonding interactions, were studied using techniques like vibrational spectroscopy, differential scanning calorimetry, and X-ray diffraction to understand how their structures determine properties. The effects of cation size and ionic liquid loading in composite materials were also investigated.