Synthesis of Ultra Microporous Crystalline Polymers from 1, 3, 5, 7‐Tetraphenyladamantane and Trichlorotriazine for Adsorption of Rhodamine B and Malachite Green

The synthesis of crystalline hyper‐crosslinked polymer still challenges scientists due to the irreversible, random nature of the Friedel–Crafts reaction. In this work, we report a series of crystalline TPA‐CC‐x combined by 1, 3, 5, 7‐tetraphenyladamantane (TPA) and cyanuric Chloride (CC) based on Friedel–Crafts reaction. The X‐ray diffraction (XRD) analysis confirmed the crystal structure of these polymers. The porosity and pore size distribution analysis discovered that the spec, while the TPA‐CC‐x were almost entirely composed of micropores with the pore diameter approximately located at 1.223 nm. Combining the advantages of abundant adsorption sites, electronegative natures, and porous structures, TPA‐CC–1 exhibits ultrahigh adsorption capacities and adsorption rates toward cationic dyes, including malachite green (MG) and Rhodamine B (RhB). Notably, the maximum adsorption capacity of TPA‐CC–1 toward RhB is 2089.3 ± 55.3 mg g −1 , which exceeded all previously reported porous manuscript organic polymers adsorbents. The contribution represents the first report of crystalline HCPs that not only expand their structural diversity but also exhibit excellent adsorption properties.