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http://dx.doi.org/10.17702/jai.2020.21.2.51

Effect of Specific Surface Area of Activated Carbon Fiber on Harmful Gas Adsorption and Electrochemical Responses  

Kang, Jin Kyun (Korea Institute of Convergence Textile (KICTEX))
Chung, Yong Sik (Department of Organic Materials and Textile Engineering, Chonbuk National University)
Bai, Byong Chol (Korea Institute of Convergence Textile (KICTEX))
Ryu, Ji Hyun (Department of Carbon Convergence Engineering, Wonkwang University)
Publication Information
Journal of Adhesion and Interface / v.21, no.2, 2020 , pp. 51-57 More about this Journal
Abstract
Recently, there has been growing interest in the study of removal of harmful and hazardous pollutants emitted by industrial activities. In this study, we have developed porous activated carbon fibers prepared by a water vapor activation method and analyzed the adsorptions of the harmful gases with electrochemical responses of activated carbon fibers. To control the uniformity of pore structures, active reaction areas, and active sites, the reaction conditions of activation temperatures were varied from 750 to 850 ℃ with the predetermined reaction time intervals (30 to 240 min). The SO2 and NO gas adsorptions of activated carbon fibers prepared by various reaction conditions were analyzed and monitored by electrochemical sensor responses. In particular, the activated carbon fibers prepared at the reaction temperature of 850 ℃ and time of 45 min showed the highest specific surface area (1,041.9 ㎡/g) and pore characteristics (0.42 ㎤/g), and excellent adsorption capabilities of SO2 (1.061 mg/g) and NO (1.210 mg/g) gases, respectively.
Keywords
harmful gas; activated carbon fiber; specific surface area; adsorption; electrochemical response;
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