Publisher : Korean Society for Atmospheric Environment
DOI : 10.5572/KOSAE.2015.31.6.538
Title & Authors
Preparation of Activated Carbon Fiber Adsorbent for Enhancement of CO2 Capture Capacity Hwang, Su-Hyun; Park, Hyun-Soo; Kim, Dong-woo; Jo, Young-Min;
Test activated carbon fiber (ACF) was prepared from Polyacrylonirile (PAN) through oxidation and chemical activation. Immersion of ACF precursors in the aqueous KOH solution enhanced the surface structure, as examined by BET pore analysis. Specific surface area increased greatly from less than to with 4 M KOH, and total pore volume also rose up to . In particular, it was found that micropores favorable for molecule capture occupied more than 95%. Maximum adsorption capacity was 3.59 mmol/g at 298 K. Low depth of pores in the present ACF may facilitate the molecules' desorption for its regeneration.
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