Imine-based covalent triazine framework: Synthesis, characterization, and evaluation its adsorption

In this work, an imine-based covalent triazine framework (IB-CTF) was synthesized and thoroughly characterized by TGA, FT-IR, XRD, and FE-SEM. Then, its application was investigated in head-space solid-phase microextraction (HS-SPME) of Chlorophenols (CPs) from aqueous solutions. The selected CPs (2,4-dichlorophenol (2,4-DCP), 2,3-dichlorophenol (2,3-DCP), and 3,5-dichlorophenol (3,5-DCP)) were successfully extracted in only 30 min. The presence of hydrogen bonding and pi-pi interactions between the adsorbent and the above-mentioned CPs led to better extraction. The obtained results confirm the application of CTFs as adsorbents in HS-SPME in wastewater treatment. (C) 2019 Elsevier B.V. All rights reserved.