Fig. 1. Common topological structures of two-dimensional COFs

Fig. 2. Scheme for synthesis of COFs by electron beam radiation^[12]

Fig. 3. (a) Photo of the gamma-radiation unit,(b) the synthesis of γ-COF by gamma-radiation at different absorbed doses rate,(c) the synthesis of γ-COF by gamma-radiation under N₂,Ar,and airatmosphere,(d) the synthesis of γ-COF by gamma-radiation in the vessel with different transparency,(e) the synthesis of γ-COF by gamma-radiation in a plastic tube,(f) comparison of the PXRD of the COFs synthesized by gamma rradiation method and conventional solvothermal method^[17]

Fig. 4. Scheme for one-pot synthesis of COF-g-X%PAAc under γ ray radiation^[51]

Fig. 5. Scheme for synthesis of γ-COF/Cu-Xunder γ-ray radiation^[52]

Fig. 6. (a) Static sorption of γ-COF and γ-COF@Mo-X toward MB,(b) dynamic column penetration sorption curves of γ-COF and γ-COF@Mo-3,Electrostatic potential distribution mapping of (c) γ-COF and (d) molybdic acid. Interactions between (e) γ-COF and MB,(f) molybdic acid and MB,(g) Static sorption of γ-COF@Mo-3 and γ-COF@Mo-3~0 kGy toward MB^[54]

Fig. 7. Scheme for synthesis of TbDa-COF and [C₂vimBr]_x%-TbDa-COF^[28]

Fig. 8. Scheme for synthesis of 3DCOF,3DCOF-g-VBC,and 3DCOF-g-VBPPh₃Cl,and their SEM images^[29]

Fig. 9. Scheme for synthesis of [15C5]_n%-(TzDa-G-x%)^[55]

Fig. 10. Scheme for synthesis of BDATN,rBDATN and rBDATN-HCl^[56]