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 language | English |
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Pages (from-to) | 597-599 |
Number of pages | 3 |
Journal | Journal of Colloid and Interface Science |
Volume | 291 |
Issue number | 2 |
DOIs | |
State | Published - 15 Nov 2005 |
Externally published | Yes |
Keywords
- Activated carbon
- Ammonia removal
- Oxyfluorination
- Surface oxygen complexes