Design, synthesis, structure, and gas (CO2, CH4, and H2) storage properties of porous imine-linkage organic compounds

Abstract

The high quantity of carbon dioxide in the atmosphere, which has been steadily increasing year after year, has had a significant influence, particularly on the environment, resulting in climate change and global warming. As a result, numerous approaches, like the Schiff bases, have reported extensive investigation into storing this gas. We synthesized four new Schiff bases containing the amlodipine medication and tested them as CO2, CH4 and H2 storage. In boiling methanol as a solvent, amlodipine reacts with (p-Chlorobenzaldehyde, p-hydroxy benzaldehyde, vanillin, terphthaldehyde) to generate COFs. Scanning electron microscopy (SEM), and atomic force microscopy (AFM) were utilized to study the features of the surface for synthesized compounds. Schiff bases have surface areas, pore volumes cm3/g, and pore widths, according to the Brunauer-Emmett-Teller (BET) test. At temperature (313 K) and pressure (40 bars), the produced Schiff bases obtained reasonable CO2 (26.3 cm3/g) CH4 (30.1 cm3/g) and H2 (2.5 cm3/g) absorption values.

Keywords

• Amlodipine, gas storage
• Schiff bases
• Global warming
• Carbon dioxide uptake