@article{article_612682, title={THE SYNTHESIS OF SPHERICAL SHAPE AMINO FUNCTIONALIZED PEI-TGIC COVALENT ORGANIC FRAMEWORKS: SYNTHESIS, CHARACTERIZATION, AND METHYL ORANGE ABSORPTION}, journal={Journal of Scientific Perspectives}, volume={3}, pages={165–176}, year={2019}, DOI={10.26900/jsp.3.017}, url={https://izlik.org/JA82WW74XA}, author={Demırcı, Sahin and Sılan, Coskun and Yılmaz, Selehattin}, keywords={Covalent organic framework, COF, PEI-TGIC, methyl orange absorption}, abstract={<p class="MsoNormal" style="margin-bottom:6pt;"> <span lang="en-us" xml:lang="en-us">In here, the synthesis of covalent organic framework (COF) from the
reaction of polyethyleneimine (PEI) and triglycidyl isocyanurate (TGIC) in
dimethylformamide at 90 <font face="Times New Roman, serif">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 </font>/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. </span> </p> <p> <i> </i> </p> <i> </i>}, number={3}