Atmospheric water harvesting offers a powerful and promising solution to address the problem of global freshwater scarcity. In the past decade, significant progress has been achieved in utilizing hydrolytically stable metal–organic frameworks as recyclable water-sorbent materials under low relative humidity, especially in those arid areas. Recently, Yaghi's group has employed a combined crystallographic and theoretical technique to decipher the water filling mechanism in MOF-303, where the polar organic linkers rather than the inorganic units of MOF are demonstrated as the key factor. Hence, the hydrophilic strength of the water-binding pocket in MOFs can be optimized through the approach of multivariate modulations, resulting in enhanced water harvesting properties.

大气集水为解决全球淡水稀缺问题提供了一种强大而有前景的解决方案。在过去的十年中，在利用水解稳定的金属有机骨架作为低相对湿度下的可回收吸水材料方面取得了重大进展，特别是在那些干旱地区。最近，Yaghi 的团队采用结合晶体学和理论技术来破译 MOF-303 中的水填充机制，其中极性有机连接体而不是 MOF 的无机单元被证明是关键因素。因此，可以通过多元调制的方法优化 MOF 中水结合袋的亲水强度，从而提高集水性能。