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http://dx.doi.org/10.4491/eer.2018.336

Removal of volatile organic compounds from air using activated carbon impregnated cellulose acetate electrospun mats  

Patil, Kashyap (Department of Chemical Engineering, Changwon National University)
Jeong, Seonju (Department of Advanced Materials and Chemical Engineering, Catholic University of Daegu)
Lim, Hankwon (Department of Advanced Materials and Chemical Engineering, Catholic University of Daegu)
Byun, Hun-Soo (Department of Chemical and Biomolecular Engineering, Chonnam National University)
Han, Sangil (Department of Chemical Engineering, Changwon National University)
Publication Information
Environmental Engineering Research / v.24, no.4, 2019 , pp. 600-607 More about this Journal
Abstract
Volatile organic compounds (VOCs) are released from various sources and are unsafe for human health. Porous materials are promising candidates for the adsorption of VOCs owing to their increased ratio of surface area to volume. In this study, activated carbon (AC) impregnated cellulose acetate (CA) electrospun mats were synthesized using electrospinning for the removal of VOCs from the air mixture of ACs, and CA solution was electrospun at different proportions (5%, 10%, and 15%) in a single nozzle system. The different AC amounts in the electrospun mats were distributed within the AC fibers. The adsorption capacities were measured for acetone, benzene, and dichloromethane, using quartz crystal microbalance. The results elicited an increasing adsorption capacity trend as a function of the impregnation of ACs in the electrospun mats, while their capacities increased as a function of the AC concentration. Dichloromethane resulted in a faster adsorption process than acetone and benzene owing to its smaller molecular size. VOCs were desorbed with the N2 gas purging, while VOCs were adsorbed at higher temperatures owing to the increased vapor pressures. The adsorption analysis using Dubinin-Astakhov equation showed that dichloromethane is more strongly adsorbed on mats.
Keywords
Activated carbon; Adsorption; Electrospinning; Quartz crystal microbalance; VOCs removal;
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