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The conventional regeneration processes for aqueous amine-based sorbents require high regeneration temperature and are very energy intensive. In this work, a low-temperature and energy-saving CO₂ capture technology has been successfully developed by using alcohols-amines-water mixtures as sorbents. The addition of certain amounts of alcohols [especially ethanol (EtOH)] to amines can significantly increase the CO₂ desorption rates and cyclic CO₂ capture capacities in comparison with those of monoethanolamine-water, diethanolamine-water, and methyldiethanolamine-water systems. The sorbent containing 40 wt% EtOH, 20 wt% monoethanolamine (MEA), and 20 wt% H₂O can increase cyclic CO₂ capture capacity by 6.8 times and a maximum improvement of 236 times in CO₂ desorption rate at 75 °C, which makes the use of the low-temperature waste heat in power plants for CO₂ capture or self …