In here, the synthesis of covalent organic framework (COF) from the
reaction of polyethyleneimine (PEI) and triglycidyl isocyanurate (TGIC) in
dimethylformamide at 90 oC were carried out. The surface are, pore
volume and pore size values of PEI-TGIC COFs observed as 23.4 m2/g,
0.143 cm3/g, and 22.5 nm, respectively. Moreover, the surface charge
of PEI-TGIC COFs increased to +46.1±2.6 mV from +18.3±1.7 mV, after protonation
of amine groups of PEI-TGIC COFs. Moreover, the potential usage of PEI-TGIC
based COFs in absorption methyl orange (MO) dye from aqueous media was testing.
It was observed that, the PEI-TGIC COF absorbed 156.6±4.9 mg/g MO, and the
protonated PEI-TGIC (p-PEI-TGIC) COFs absorbed 202.4±5.3 mg/g MO from aqueous
media in 30 min. The MO absorption by PEI-TGIC COF fitted with
pseudo-first-order kinetic model, whereas MO absorption by p-PEI-TGIC COF
fitted with pseudo-second-order kinetic model.
Primary Language | English |
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Subjects | Food Engineering |
Journal Section | Articles |
Authors | |
Publication Date | July 28, 2019 |
Published in Issue | Year 2019 |