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Preparation and characterization of activated carbon fibers from liquefied wood.
- Source :
- Cellulose; Aug2013, Vol. 20 Issue 4, p1649-1656, 8p
- Publication Year :
- 2013
-
Abstract
- Wooden activated carbon fibers (WACFs) were prepared from phenolated Chinese fir ( Cunninghamia lanceolata) using CO activation; microstructure characterization, the adsorption capacity, BET-specific surface area, and pore distribution of WACFs were investigated by SEM and X-ray analysis. Results showed that WACFs have a smooth surface and round or elliptical cross-section. The (002) crystal plane diffraction peak of the WACFs was obviously heightened, also showing an apparent (100) diffraction peak. With increased activation temperature, the value of d gradually decreased, whereas the values of the crystallite sizes L and L initially decreased and then increased. The L/ d and g values corresponding to the degree of change in the graphitization structure increased. WACFs mainly have micropores as well as a few macro- and mesopores. The micropore diameter of WACFs has a narrow range (0.3-0.5 nm). With increased activation temperature, the single-point surface area, Brunauer-Emmett-Teller surface area, micropore area, single-point total pore volume, and micropore volume of WACFs increased, while the pore diameter decreased. At 900 °C, the iodine adsorption and yield rate of WACFs were 779.22 mg/g and 51.48 %, respectively. [ABSTRACT FROM AUTHOR]
- Subjects :
- ACTIVATED carbon
CHINA fir
MICROSTRUCTURE
MICROMECHANICS
CRYSTAL defects
Subjects
Details
- Language :
- English
- ISSN :
- 09690239
- Volume :
- 20
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Cellulose
- Publication Type :
- Academic Journal
- Accession number :
- 89518811
- Full Text :
- https://doi.org/10.1007/s10570-013-9981-8