A zwitterionic hydrogel of PCL composite is synthesized by a situ free radical polymerization method and a impregnation method. The PCL composite hydrogel has a gradient pore structure, which may accelerate the transport of water molecules, increase the loading capacity of LiCl and enhance the photothermal property. The optimal composite hydrogel (PCL-42) may produce fresh water of 2.71 kg kg⁻¹ by outdoor adsorption at nighttime and solar-driven desorption at daytime.

中文翻译：

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TpPa-1 COFs 增强两性离子水凝胶可有效收集大气水

采用原位自由基聚合法和浸渍法合成了PCL复合材料的两性离子水凝胶。 PCL复合水凝胶具有梯度孔隙结构，可以加速水分子的传输，增加LiCl的负载能力并增强光热性能。最佳复合水凝胶（PCL-42）可以通过夜间室外吸附和白天太阳能驱动解吸产生2.71 kg kg ^-1的淡水。