Carbon letters
- Volume 7 Issue 1
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- Pages.34-41
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- 2006
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- 1976-4251(pISSN)
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- 2233-4998(eISSN)
Characteristics of Surface Modified Activated Carbons Prepared by Potassium Salt Sequentially After Hydrochloric Acid Treatment
- Oh, Won-Chun (Department of Advanced Materials & Science Engineering, Hanseo University) ;
- Park, Chong-Sung (Department of Environmental Engineering, Hanseo University) ;
- Bae, Jang-Soon (Department of Industrial Chemistry, Dankook University) ;
- Ko, Young-Shin (Department of Science Education, Seoul National University of Education)
- Received : 2006.02.16
- Accepted : 2006.03.15
- Published : 2006.03.30
Abstract
The objective of this paper is to compare the variation of surface properties by hydrochloric acid pre-treatment and of metallic potassium and their salts loading effect for activated carbon after surfaces transformation by acid. From the results of nitrogen adsorption, each isotherm shows a distinct knee band, which is closely related to the characteristic of microporous carbons with capillary condensation in micropores. In order to present the causes of the differences in surface properties and