Abstract:
Electrospun multicomposite nanofibers synthesized from extracts of Moringa oleifera (M. oleifera) seed biomass blended
with metal oxide nanoparticles (MONPs) and polyacrylonitrile (PAN) were investigated as potential adsorbents. The materials
were characterized using SEM, XRD, FTIR, BET and TGA. The specific surface area of MONPs ranged between 29.75
and 60.92 m2/
g and their incorporation in the PAN/M. oleifera composite blend resulted in increased surface coarseness and
larger nanofiber diameters (268 ± 21–317 ± 27 nm). The application of PAN/M. oleifera/MONPs for Pb(II) removal from
aqueous solution via batch adsorption experiments was investigated based on the parameters: solution pH, contact time and
initial Pb(II) ion concentration. Experimental results better fitted the Langmuir isotherm model and pseudo-second-order
kinetics. Adsorption capacities ranged between 172.4 and 227.3 mg/g. These results demonstrate that low-cost indigenous
materials have significance and applicability in water remediation applications.
