Surface modification of carbon fabric for isopropanol removal from gas stream

[Display omitted] •Surface modification of carbon fabric by plasma and nitric acid.•The increasing oxygen concentration was estimated by using elemental analysis.•Oxygen concentration of CF was quantified by novel method temperature programmed decomposition.•Improvement in the IPA adsorption perform...

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Bibliographic Details
Published in:Microelectronic engineering 2014-08, Vol.126, p.60-64
Main Authors: Manoj Kumar Reddy, P., Krushnamurty, K., Subrahmanyam, Ch
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
Adsorption and desorption kinetics
evaporation and condensation
Air plasma
Applied sciences
Carbon
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Fabrics
Gas streams
Isopropanol
Materials science
Metals. Metallurgy
Organic compounds
Physics
Plasma
Production techniques
Solid surfaces and solid-solid interfaces
Solid-fluid interfaces
Surface chemistry
Surface treatment
Surface treatments
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
Unit adsorption capacity
VOC
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Summary:[Display omitted] •Surface modification of carbon fabric by plasma and nitric acid.•The increasing oxygen concentration was estimated by using elemental analysis.•Oxygen concentration of CF was quantified by novel method temperature programmed decomposition.•Improvement in the IPA adsorption performance of CF after activation. The surface chemistry of carbon fabric (CF) was modified by both chemical and physical activation. The increasing oxygen concentration was estimated by using elemental analysis, and quantified by temperature programmed decomposition (TPD) in helium atmosphere. Modified carbon fabrics were used as adsorbents during the removal of a model volatile organic compounds (VOCs) isopropanol from gas streams. Typical results indicated that CF modified by air plasma has the best adsorption capacity, probably due to the formation of highest amount of acidic functional groups during the treatment.
ISSN:0167-9317
1873-5568
DOI:10.1016/j.mee.2014.06.005