| Title: | Effect of Surface Treatment by O(3) and Chemical Activation by Alkali Metal on the Performance of ACFs on Adsorption and Desorption of BTX Gases |
| Address: | "Department of Applied Environmental Science, Graduate School, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Korea. Plant Engineering Center, Institute for Advanced Engineering, 633-2 Goan-ri, Baegam-myon, Cheoin-gu, Yongin-si, Gyeonggi-do 17528, Korea" |
| Journal Title: | Int J Environ Res Public Health |
| ISSN/ISBN: | 1660-4601 (Electronic) 1661-7827 (Print) 1660-4601 (Linking) |
| Abstract: | "In order to investigate the adsorption characteristics of activated carbon fibers (ACFs) with improved surface morphologies towards volatile organic compounds (VOCs), a commercial low-grade ACF was surface modified by successive surface treatment (ST) and chemical activation (CA) process. O(3) was used as an ST agent for the formation of oxygen-containing functional groups on the carbon matrix of ACFs. CA was carried out after ST, using a KOH solution. After the successive ST-CA process, Brunauer-Emmett-Teller (BET) surface area and average pore diameter of ACFs were increased from 1483 m(2)/g to 2743 m(2)/g and enlarged from 1.931 nm to 2.512 nm, respectively. The successive ST-CA process also resulted in the adsorption capacities of benzene, toluene, and xylene of the ACFs to increase from 0.22 g(-Ben.)/g(-ACFs), 0.18 g(-Tol.)/g(-ACFs), and 0.19 g(-Xyl)/g(-ACFs) up to 0.37 g(-Ben.)/g(-ACFs), 0.35 g(-Tol.)/g(-ACFs), and 0.38 g(-Xyl)/g(-ACFs), respectively" |
| Keywords: | "Adsorption Carbon Fiber *Charcoal Gases/*chemistry *Metals, Alkali Ozone/*chemistry BTX gas adsorption Iaq activated carbon fiber chemical activation surface treatment textural properties;" |
| Notes: | "MedlineJang, Jung Hee Han, Gi Bo eng Research Support, Non-U.S. Gov't Switzerland 2020/08/01 Int J Environ Res Public Health. 2020 Jul 28; 17(15):5422. doi: 10.3390/ijerph17155422" |
