Activated carbons were prepared from leaves of Ginkgo biloba by activation process with zinc chloride after carbonization. The specific surface area of this activated carbon measured by BET surface analyzer was obtained as 469.8㎡/g. Adsorption of al...
Activated carbons were prepared from leaves of Ginkgo biloba by activation process with zinc chloride after carbonization. The specific surface area of this activated carbon measured by BET surface analyzer was obtained as 469.8㎡/g. Adsorption of alkyl substituted phenols on activated carbon was determined using gas chromatography. It was found that molecular area could be estimated using Langmuir's isotherm, specific surface area, and Avogadro's number. Molecular areas for phenol, 2-ethyl phenol, 2,5-dimethyl phenol, 2-isopropyl phenol were 0.0288n㎡, 0.0796n㎡, 0.0384n㎡, and 0.1182n㎡, respectively. This estimation techniques are potentially useful to obtain molecular area for various compounds.