Metal–organic frameworks grown on a porous planar template with an exceptionally high surface area: promising nanofiller platforms for CO2 separation
- Authors
- Lee, Hyunhee; Park, Seul Chan; Roh, Ji Soo; Moon, Gi Hyeon; Shin, Jae Eun; Kang, Yong Soo; Park, Ho Bum
- Issue Date
- Nov-2017
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- JOURNAL OF MATERIALS CHEMISTRY A, v.5, no.43, pp.22500 - 22505
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF MATERIALS CHEMISTRY A
- Volume
- 5
- Number
- 43
- Start Page
- 22500
- End Page
- 22505
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/5361
- DOI
- 10.1039/c7ta06049a
- ISSN
- 2050-7488
- Abstract
- Porous nanosheets made of effectively aligned zeolitic imidazolate framework-8 (ZIF-8), dubbed ZPGO, with an exceptionally high surface area (2170 m2 g−1) were demonstrated. This composite was prepared by growing ZIF-8s on highly porous graphene oxide (PGO) and the mixed matrix membrane with such a nanofiller showed drastically improved size-selective CO2 transport even at very low filler concentration (0.02 wt%) especially under mixed gas conditions where both selectivity (CO2/N2 ∼57) and CO2 permeability (∼163 barrer) were significantly enhanced. In addition to this, ZPGO effectively suppressed CO2-plasticization, which indicates great potential in real operations. This new concept of nanofillers is expected to maximize the filler effect in other fields benefitting from a high surface area as well.
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