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Adsorption of toxic gases on molecularly imprinted polymer coated QCM: measurements and modeling for partial pressure in gas mixture

Authors
  • Hwang, Min-Jin1
  • Shim, Wang-Geun2
  • Yoon, Soon-Do3
  • Moon, Hee4
  • 1 Chonnam National University, Department of Environmental System Engineering, Yeosu, 59626, Republic of Korea , Yeosu (South Korea)
  • 2 Sunchon National University, Department of Polymer Science and Engineering, Sunchon, 57922, Republic of Korea , Sunchon (South Korea)
  • 3 Chonnam National University, Department of Chemical and Biomolecular Engineering, Yeosu, 59626, Republic of Korea , Yeosu (South Korea)
  • 4 Chonnam National University, School of Chemical Engineering, Gwangju, 61186, Republic of Korea , Gwangju (South Korea)
Type
Published Article
Journal
Adsorption
Publisher
Springer US
Publication Date
Apr 08, 2019
Volume
25
Issue
4
Pages
825–832
Identifiers
DOI: 10.1007/s10450-019-00074-w
Source
Springer Nature
Keywords
License
Yellow

Abstract

An adsorption-based array sensor coated with different molecularly imprinted polymers (MIPs) was fabricated to effectively and simultaneously detect specific volatile organic compounds (VOCs) such as benzene and isopropyl methyl ketone (IMK). The synthesized MIPs showed remarkable recognition properties such as sensitivity and selectivity for their target molecule. Furthermore a detection method for array sensors was formulated based on several adsorption equilibrium isotherm models to determine individual partial pressures in the VOCs mixture from the overall adsorption capacities on array sensor elements. The results indicated that the detection method provided relatively good predictions for binary target species within the experimental error.

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