Ammonia removal of activated carbon fibers produced by oxyfluorination

Soo Jin Park, Byung Joo Kim

Research output: Contribution to journalArticlepeer-review

90 Scopus citations

Abstract

In this study, activated carbon fibers (ACFs) were produced by an oxyfluorination treatment to enhance the capacity of ammonia gas removal. The introduction of polar groups, such as CF, CO, and COOH, on the ACFs was confirmed by a XPS analysis, and N2/77 K adsorption isotherm characteristics including specific surface area and total and micropore volumes were studied by the BET and t-plot methods. The ammonia-removal efficiency was confirmed by a gas-detecting tube technique. As a result, the specific surface area and micropore volume of ACFs were slightly destroyed as the surface treatment time was increased. However, the oxyfluorinated ACFs led to an increase of fluorine and oxygen-containing polar functional groups in ACF surfaces, resulting in an increase in the ammonia-removal efficiency of the ACFs produced.

Original languageEnglish
Pages (from-to)597-599
Number of pages3
JournalJournal of Colloid and Interface Science
Volume291
Issue number2
DOIs
StatePublished - 15 Nov 2005
Externally publishedYes

Keywords

  • Activated carbon
  • Ammonia removal
  • Oxyfluorination
  • Surface oxygen complexes

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