Spray-assisted layer-by-layer self-assembly of tertiary-amine-stabilized gold nanoparticles and graphene oxide for efficient CO<inf>2</inf> capture
- JIWOONGHEO; 최문현; DAHEUICHOI; HYEJOONGJEONG; Hyun Young Kim; Hyunsik Jeon; Sang Wook Kang; JINKEE HONG
- Issue Date
- ELSEVIER SCIENCE BV
- Tertiary amines; Tertiary amines; Adsorptive gas separation; Layer-by-layer self-assembly (LbL)
- Journal of Membrane Science, v.601, pp.117905-1 - 117905-6
- Journal Title
- Journal of Membrane Science
- Start Page
- End Page
- Carbon capture and storage (CCS) is the process of capturing carbon dioxide (CO2) produced from the combustion
of fossil fuels. CO2 is a major contributor to global warming and should be removed after combustion.
The objective of this research is to design a CO2 capture membrane consisting of tertiary-amine-stabilized gold
nanoparticles (Au NPs), graphene oxide (GO), and polyelectrolytes. A high CO2 capture ability is most important
for designing a CO2 capture membrane that can maintain a high gas permeance. Multilayer films were fabricated
using an automatic spray-assisted layer-by-layer (LbL) machine. The polar affinity of polyelectrolytes assisted the
CO2 capture of tertiary amines. The randomly oriented and loosely stacked GO layers not only helped align the
Au NPs in the polyelectrolyte matrix, but also helped maintain the permeance of N2. Thus, we successfully
fabricated a CO2 adsorptive multilayer nanocoating with a maximum CO2/N2 selectivity of 48.48 while maintaining
the N2 permeance at 1204.25 GPU.
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- College of Engineering > Chemical Engineering > 1. Journal Articles
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