The fabrication of macroscopic objects from covalent organic frameworks (COFs) is challenging but of great significance to fully exploit their chemical functionality and porosity. Herein, COF/reduced graphene oxide (rGO) aerogels synthesized by a hydrothermal approach are presented. The COFs grow in situ along the surface of the 2D graphene sheets, which are stacked in a 3D fashion, forming an ultralight aerogel with a hierarchical porous structure after freeze-drying, which can be compressed and expanded several times without breaking. The COF/rGO aerogels show excellent absorption capacity (uptake of >200 g organic solvent/g aerogel), which can be used for removal of various organic liquids from water. Moreover, as active material of supercapacitor devices, the aerogel delivers a high capacitance of 269 F g⁻¹ at 0.5 A g⁻¹ and cycling stability over 5000 cycles.

从共价有机框架 (COF) 制造宏观物体具有挑战性，但对于充分利用其化学功能和孔隙率具有重要意义。在此，提出了通过水热法合成的 COF/还原氧化石墨烯 (rGO) 气凝胶。COFs沿2D石墨烯片表面原位生长，以3D方式堆叠，冷冻干燥后形成具有分层多孔结构的超轻气凝胶，可多次压缩和膨胀而不会破裂。COF/rGO 气凝胶显示出优异的吸收能力（吸收 >200 g 有机溶剂/g 气凝胶），可用于从水中去除各种有机液体。此外，作为超级电容器装置的活性材料，气凝胶可提供 269 F g ^-1的高电容在 0.5 A g ^-1和超过 5000 次循环的循环稳定性。