Extracting water from air is a promising method to solve the global challenge of water scarcity. Sorption-based atmospheric water harvesting (S-AWH) has the capability of all-weather water production from air under arid or humid climates. However, high energy consumption and low water production are two long-standing bottlenecks to realizing efficient S-AWH. Herein, we propose a low-carbon sustainable strategy for atmospheric water generation by synergistically harvesting heat from natural sunlight for water desorption and cold from the universe for water condensation. The synergistic effects of transmittance-type radiative cooling membranes enable the hybrid AWH to realize efficient S-AWH by lowering water condensation temperature in the daytime and providing extra water production in the nighttime. Notably, the hybrid AWH device exhibits water productivity of up to 3654 g m⁻² day⁻¹. This work offers an energy-efficient method for all-day atmospheric water generation by synergistically harvesting energy from sunlight and sky radiative cooling.

中文翻译：

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一体化混合大气水收集，通过自然阳光和辐射冷却全天制水

从空气中提取水是解决全球水资源短缺挑战的一种有前途的方法。基于吸附的大气水收集（S-AWH）具有在干旱或潮湿气候下全天候从空气中制水的能力。然而，高能耗和低产水量是实现高效S-AWH的两个长期瓶颈。在此，我们提出了一种低碳可持续的大气水生成策略，通过协同收集自然阳光中的热量以进行水解吸，并从宇宙中收集冷量以进行水凝结。透射式辐射冷却膜的协同效应使混合AWH能够通过降低白天的水冷凝温度和在夜间提供额外的产水量来实现高效的S-AWH。值得注意的是，混合AWH装置的水生产率高达3654 gm ^-2 day ^-1。这项工作通过协同收集阳光和天空辐射冷却的能量，为全天大气水生成提供了一种节能方法。