Abstract
In the present work, thiol-functionalized mesoporous silica nanoparticles (NPs) were synthesized and incorporated into the electrospun poly(vinylidene fluoride) (PVDF) nanofibers. The electrospun fibers were characterized by Fourier transform infrared spectroscopy (FTIR), contact angle measurements and universal testing machine (UTM). The batch experiments demonstrated that electrospun PVDF/silica thiol nanofiber had chromium ion adsorption capacity. Further, isotherm models and adsorption kinetics confirmed the chemisorption mechanism. Notably, the thiol-functionalized silica NPs incorporated electrospun PVDF nanofiber showed a rapid desorption rate and excellent reusability. The present work is likely to provide a valuable theoretical and experimental basis for the recovery of chromium (Cr) metal ions from synthetic wastewater.
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