| CPC B01D 67/0079 (2013.01) [B01D 67/00791 (2022.08); B01D 69/02 (2013.01); B01D 69/12 (2013.01); B01D 71/025 (2013.01); B01D 2323/10 (2013.01); B01D 2325/02832 (2022.08); B01D 2325/20 (2013.01); B01D 2325/36 (2013.01); B01D 2325/38 (2013.01)] | 20 Claims | 

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               1. A composition of matter, comprising: 
              a two-dimensional covalent organic imidazole framework polymer having an aromatic backbone and ordered nanometer sized pores, the two-dimensional covalent organic imidazole framework polymer represented by (a) or (b): 
              ![]() or 
              ![]() wherein: 
            each R of (a) and (b) independently comprises hydrogen, halogen, amine, nitrile, hydroxyl, carboxyl, peptide, ammonium, onium, alkane, alkene, silane, sulfonyl, or phosphate; 
                each X of (a) and (b) independently comprises nitrile, carboxylic acid, or connection to another pore of the two-dimensional covalent organic imidazole framework polymer; and 
                the wavy bonds of (a) and (b) represent a connection to another pore of the two-dimensional covalent organic imidazole framework polymer. 
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