Heat-pump-coupled sorbent system toward efficient atmospheric water production and indoor air conditioning

Water scarcity and the need for sustainable indoor air conditioning are driving research toward innovative solutions. This perspective addresses the integration of a heat pump with an atmospheric water sorption system, presenting a promising approach to simultaneously harvesting water from the air and regulating indoor environments. The system leverages the moisture capture capability of advanced hygroscopic materials with the high-energy efficiency of heat pumps. Here, we detail the working principle, highlight key components, and analyze current research developments regarding this hybrid system. Furthermore, we discuss future research directions to further improve system efficiency and explore potential applications for broadening its practical use. With potential to efficiently alleviate water scarcity and advance indoor climate solutions, a heat-pump-coupled sorbent system represents an essential step toward addressing global environmental challenges.