Poly(ethyleneimine) nanofibrous affinity membrane fabricated via one step wet-electrospinning from poly(vinyl alcohol)-doped poly(ethyleneimine) solution system and its application

Polyethylenimine nanofibrous adsorbent for highly effective removal of anionic dyes from aqueous solution

“…For instance, many excellent CO 2 adsorbents have been prepared by integrating PEI into porous materials, including silica [12], mesoporous carbon [13], titanate [14], polymeric supports [15], and other metal oxide nanocomposites [16]. In addition, because of the high positive charge density on the protonated PEI backbone or side chains, PEI-based adsorbents exhibit good adsorption capacity for acidic gas or anionic materials such as polyanions and negatively charged organic or inorganic matter, including various anionic dyes [16][17][18][19].Electrospinning is an effective approach to prepare ultrafine fibers; it uses an electrostatic force from an external high-voltage electrical field between a spinneret and a grounded collector to draw very fine (typically micro-to nanoscale) fibers from a liquid droplet [20]. The ultrafine fibers produced by electrospinning have very high specific ABSTRACT We prepared a nanofibrous adsorbent for anionic dye removal from aqueous solution by electrospinning a modified polyethylenimine (m-PEI) and polyvinylidene fluoride (PVDF) blend.…”

“…For instance, many excellent CO 2 adsorbents have been prepared by integrating PEI into porous materials, including silica [12], mesoporous carbon [13], titanate [14], polymeric supports [15], and other metal oxide nanocomposites [16]. In addition, because of the high positive charge density on the protonated PEI backbone or side chains, PEI-based adsorbents exhibit good adsorption capacity for acidic gas or anionic materials such as polyanions and negatively charged organic or inorganic matter, including various anionic dyes [16][17][18][19].…”

Adsorption of nickel(II) on polyacrylonitrile nanofiber modified with 2-(2′-pyridyl)imidazole

“…It is well-known that one problem concerning functionalized nanofiber fabrics is that strong acid and base may easily destroy the functional group [18,19,44], but metals can be desorbed using an EDTA solution [49].…”

Surface modification of electrospun cellulose acetate nanofibers via RAFT polymerization for DNA adsorption

“…The electrospun nanofibrous webs have shown great potential to be used as affinity membranes for separate/capture macromolecules, microorganism, enzymes, heavy metal ions and waste compounds (Che, Huang, & Xu, 2011;Lu & Hsieh, 2009;Ma et al, 2005;Wang et al, 2011;Zhang et al, 2010). For example, Zhang et al (2010) presented a new affinity membrane which was surface modified electrospun polyacrylonitrile nanofibers for bromelain adsorption.…”