“…Ionic liquids (ILs) have been considered an encouraging class of functional and green materials because of their unique properties such as non-volatility, non-flammability, adjustable structure, thermal and chemical stability, and nonexplosion. As a result, ILs are widely used in catalytic reaction and separation and can be used as reaction solvents, reaction media, and catalysts in catalytic reactions (Rajeswari et al, 2016;Kore et al, 2017;Chiarotto et al, 2018;Lethesh et al, 2019;Raiguel et al, 2020;Nasrollahzadeh et al, 2021). In many cases, for easy separation and recyclable utilization, functional ILs have attracted considerable attention in many fields such as immobilized ILs catalysts, which could transfer the traditional catalytic reactions from homogenous catalysis to a type of heterogenous catalysis, and no additional metal-containing catalysts are needed.…”