Porous and Functionalized Electrospun Polyacrylonitrile Nanofibers and Composite: Greywater Treatment and Removal of Metal Ions

In this research, an electrospun nanofiber composite of polyacrylonitrile (pan) and fe2o3 nanoparticles, and functionalized porous nanofibers were produced. nanofiber filters are used as a sorbent to remove heavy metals (lead, copper, and cadmium) from greywater. fe2o3 nanoparticles (99.5+%, 30nm, us research nanomaterials, inc.) dispersed into dimethylformamide (dmf) solvent before adding pan to the solution for the electrospinning process. porous nanofibers and nanocomposite prepared by adding sodium dodecyl sulfate (sds) to pan precursor (pan dissolved in dmf solvent 12% w/w). after electrospinning, sds was removed by rinsing nanofibers matt in water. results indicate that sds detached by rinsing and improved composite surface porosity. mechanical properties and capacity for absorbing lead, copper, and cadmium improved by adding fe2o3 and sds compared to nanofibers and nanocomposite only embedded with nanoparticles. the composite optimization results showed that the ratio of pan 12 wt%, iron oxide nanoparticles 2 wt%, and sds 1 wt% presented utmost uptake capacity and mechanical strength.

Porous and functionalized electrospun polyacrylonitrile nanofibers and composite: greywater treatment and removal of metal ions

In this research, an electrospun nanofiber composite of polyacrylonitrile (PAN) and Fe2O3 nanoparticles, and functionalized porous nanofibers were produced. Nanofiber filters are used as a sorbent to remove heavy metals (lead, copper, and cadmium) from greywater. Fe2O3 nanoparticles (99.5+%, 30nm, US Research Nanomaterials, Inc.) dispersed into Dimethylformamide (DMF) solvent before adding PAN to the solution for the electrospinning process. Porous nanofibers and nanocomposite prepared by adding sodium dodecyl sulfate (SDS) to PAN precursor (PAN dissolved in DMF solvent 12% w/w). After electrospinning, SDS was removed by rinsing nanofibers matt in water. Results indicate that SDS detached by rinsing and improved composite surface porosity. Mechanical properties and capacity for absorbing lead, copper, and cadmium improved by adding Fe2O3 and SDS compared to nanofibers and nanocomposite only embedded with nanoparticles. The composite optimization results showed that the ratio of PAN 12 wt%, iron oxide nanoparticles 2 wt%, and SDS 1 wt% presented utmost uptake capacity and mechanical strength.