Abstract
A porphyrin-based two-dimensional covalent organic framework (TPE-Por-COF) with high stability was synthesized, and the adsorption performance of TPE-Por-COF on organic dyes was studied. The TPE-Por-COF was characterized by X-ray powder diffraction, infrared spectroscopy, solid-state nuclear magnetic resonance, thermogravimetry and N2 adsorption isotherms. TPE-Por-COF has adsorption effect on five dyes: malachite green (MG), methyl violet (MV) and rhodamine B (RhB), coomassie brilliant blue (CBB) and brilliant green (BG). Among them, TPE-Por-COF has the most obvious adsorption effect on malachite green, and the adsorption capacity is as high as 1428.57 mg g-1. In addition, the CO2 adsorption capacity of TPE-Por-COF is 187 mg g-1 at 50 bar and 323 K.
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