The polyvinylbenzylchloride (PVBC) was electrospun into nanofibers in a 1:1 (v/v) ratio of N,N-Dimethylformamide (DMF), Tetrahyhdrofuran solvent mixture, the surface was functionalized using ethylenediamine and finally quaternized PVBC using three different alkyl groups (CH3, C2H5 and C3H7). Fourier transform infrared (FTIR) analysis was used to characterize the functional groups present. The band assigned to 670 cm-1 v(C-Cl) disappeared completely to form a new band at 1562 cm-1 indicating the presence of NH group on the fibers. Energy dispersive x-ray spectrometer (EDX) for PVBC shows the presence of a broad peak for Cl on the unfunctionalized fiber and this peak disappears to form a sharp peak of nitrogen from the amine in ethylenediamine (EDA) of the fibers. X-ray diffraction (XRD) analysis of the fibers reveals the sharp peak on 40 (2θ) degree axis on the surface of the functionalized fibers. It was also observed that, Brunauer, Emmett, Teller (BET) surface area of the sorbent materials (PVBC) changed after the functionalization with amine.
Moronkola BA, Alegbe MJ, Eshilokun AO, Giwa AO and Watkins GM
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