“…The mainstream strategies for H 2 S capture include amine scrubbing, adsorption, membrane separation, and so on, but they have drawbacks such as low H 2 S uptake, large solvent volatilization, high energy consumption, and complex process flow 2 . With the continuous advancement of exploration and technological updates, a large number of alternative media for traditional absorbents, such as ionic liquids (ILs), deep eutectic solvents (DESs), porous materials, and so on, have emerged 3,4 . As state‐of‐the‐art green solvents, ILs play important roles in the capture of H 2 S thanks to their chemical designability, being adjustable, and low volatility, as well as good affinity for acidic gases.…”