Silver nanoparticles stabilized by crosslinked poly(vinyl pyrrolidone) and its application for facilitated olefin transport

Positively polarized silver nanoparticles by poly(vinyl pyrrolidone) (PVP) have been demonstrated for use as stable olefin carriers for facilitated olefin transport membranes. The formation and size of silver nanoparticles stabilized by PVP were monitored using X-ray diffraction (XRD) and transmission electron microscopy (TEM). Nanocomposite membranes consisting of polymer and silver nanoparticles stabilized by PVP exhibited the high separation performance for olefin/paraffin mixtures. X-ray photoelectron spectroscopy (XPS) showed that silver nanoparticles stabilized by PVP exhibited a high positive polarity, resulting in the reversible interaction between the surface of silver nanoparticles and olefin molecules.

Reversible interaction between silver nanoparticles positively polarized by PVP and olefin.Figure optionsDownload high-quality image (61 K)Download as PowerPoint slideResearch highlights
► Silver nanoparticles stabilized and positively polarized by PVP.
► Reversible interaction between surface of silver nanoparticles and olefin.
► Facilitated olefin transport membrane utilizing silver nanoparticles as olefin carrier.