Surface of CuO Nanoparticles Modified by p -Benzoquinone for N 2 -Selective Membrane

In this study, CuO nanoparticles and -benzoquinone ( -BQ) were added to a polyvinylpyrrolidone (PVP) matrix to increase N /CO selectivity. The added -BQ allowed CuO to be distributed in a uniform size in the PVP/CuO composite membrane and the matrix to be flexible by forming the interaction with PVP...

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Bibliographic Details
Published inMembranes (Basel) Vol. 12; no. 12
Main Authors Lee, Juyeong, Sohn, Hiesang, Kang, Sang Wook
Format Journal Article
LanguageEnglish
Published Switzerland 05.12.2022
Subjects
selectivity
interaction
composite membrane
separation performance
permeance
polyvinylpyrrolidone
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Summary:In this study, CuO nanoparticles and -benzoquinone ( -BQ) were added to a polyvinylpyrrolidone (PVP) matrix to increase N /CO selectivity. The added -BQ allowed CuO to be distributed in a uniform size in the PVP/CuO composite membrane and the matrix to be flexible by forming the interaction with PVP. The surface modification of CuO by -BQ and the well-dispersed size affected the increase in the separation performance. The PVP/CuO/ -BQ composite membranes showed an N /CO selectivity of about 23.1 with N permeance of about 13.3 GPU, while the separation performance of PVP was not observed. The enhanced separation performance is attributable to the surface of CuO nanoparticles modified by -BQ inducing CO molecules to be relatively slowly transported by the adsorption properties in the polymer matrix. The chemical properties and coordinative interaction for PVP/CuO/ -BQ composite membrane were measured by FT-IR spectroscopy, thermogravimetric analysis, UV-vis, scanning electron microscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy.
ISSN:2077-0375
2077-0375
DOI:10.3390/membranes12121229