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http://dx.doi.org/10.5762/KAIS.2018.19.12.938

Preparation and characterization of Environmental Functional Nanofibers by electrospun nanofibers-Dry sorption material for indoor CO2 capture  

Kim, Eun Joo (Division of Smart management, Woosong College)
Park, Kyung-Ryul (Department of Hospital management, Woosong College)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.19, no.12, 2018 , pp. 938-943 More about this Journal
Abstract
Thin nano-sized fibres were prepared by an electrospinning method. The spinning appratus consisted of pump for polymer injection, nozzle and nozzle rotus, and an aluminum plate collected the polymer fibers. Its surface was chemically modified for selective improved adsorption of carbon monoxide at indoor level. The chemical activation enabled to form the fibres 250-350 nm in thickness with pore sizes distributed between 0.6 and 0.7 nm and an average specific surface area of $569m^2/g$. The adsorption capacities of pure (100%) and indoor (0.3%) $CO_2$, of which level frequently appears, at the ambient condition were improved from 1.08 and 0.013 to 2.2 and 0.144 mmol/g, respectively. It was found that the adsorption amount of $CO_2$ adsorbed by the chemically activated carbon nanofiber prepared through chemical activation would vary depending on the ratio of specific surface area and micropores. In particular, chemical interaction between adsorbent surface and gas molecules could enhance the selective capture of weak acidic $CO_2$.
Keywords
Electrospun nanofibers; Polyacrylonitrile; Potassium hydroxide; Chemical activation; Indoor air quality; Carbon dioxide;
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Times Cited By KSCI : 2  (Citation Analysis)
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