Metal-organic frameworks for the adsorption of gaseous toluene under ambient temperature and pressure
- Title
- Metal-organic frameworks for the adsorption of gaseous toluene under ambient temperature and pressure
- Author
- 김기현
- Keywords
- Toluene; Hydrogen bonding; Surface barrier; Physisorption; UiO-66(NH2)
- Issue Date
- 2017-01
- Publisher
- ELSEVIER SCIENCE SA
- Citation
- CHEMICAL ENGINEERING JOURNAL, v. 307, page. 1116-1126
- Abstract
- Enormous efforts have been put to effectively treat or eliminate toluene, one of the most well-known volatile organic compounds (VOCs). Herein, we report its sorptive removal mechanism against metal organic frameworks (MOFs: UiO-66, UiO-66(NH2), ZIF-67, MOF-199, MOF-5, and MIL-101(Fe)) under ambient conditions. Their interactions were assessed by the Henry's law constant (K-H) and the heat of adsorption (Delta H-ads). Although the equilibrated adsorption capacities of all MOFs were measured from 159 (MOF-199) to 252 mg g(-1) (UiO-66(NH2)), those values were reduced considerably with increases in humidity and temperature. Among them, the sorption pattern of UiO-66(NH2) was the most reproducible when tested over a three cycle (147 (1st) and 133 mg g(-1) (3rd cycle)). The behavior of -NH terminated MOFs (UiO-66(NH2) and ZIF-67) was distinguished with those of -COOH as explained by a scheme of hypothetical potential energy profiles using mass transfer resistance and surface barrier phenomena. (C) 2016 Elsevier B.V. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/pii/S1385894716312499?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/112346
- ISSN
- 1385-8947; 1873-3212
- DOI
- 10.1016/j.cej.2016.09.012
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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