Details
| Original language | English |
|---|---|
| Pages (from-to) | 24949-24955 |
| Number of pages | 7 |
| Journal | Journal of Materials Chemistry A |
| Volume | 6 |
| Issue number | 48 |
| Early online date | 22 Nov 2018 |
| Publication status | Published - 28 Dec 2018 |
Abstract
Developing a novel MOF membrane material with switchable separation performance is an exciting and challenging research project. In the present work, we report preparation of a new kind of light induced smart MOF membrane, i.e., Cu(AzDC)(4,4′-BPE) 0.5 membrane, which shows (i) enhanced molecular sieving performance, and (ii) is able to respond quickly to external light stimuli. Two photo-switchable moieties are addressed in the Cu(AzDC)(4,4′-BPE) 0.5 membrane: azobenzene and bis(4-pyridyl)ethylene. When the Cu(AzDC)(4,4′-BPE) 0.5 membrane is in situ irradiated with Vis and UV light, the separation factor of a H 2 /CO 2 mixture can be switched reversibly between 21.3 and 43.7. This switching effect is mainly caused by reduced CO 2 adsorption in the UV-cis state as proven by independent adsorption studies. For a steric reason, adsorption of CO 2 is limited for the UV-cis state. In full agreement with this model, the adsorption of other gases H 2 , CH 4 and N 2 as well as their permeation behaviour is not observably influenced by the trans-cis switching.
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Energy(all)
- Renewable Energy, Sustainability and the Environment
- Materials Science(all)
- General Materials Science
Sustainable Development Goals
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In: Journal of Materials Chemistry A, Vol. 6, No. 48, 28.12.2018, p. 24949-24955.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Photo-switchable smart metal-organic framework membranes with tunable and enhanced molecular sieving performance
AU - Liu, Chuanyao
AU - Jiang, Yunzhe
AU - Zhou, Chen
AU - Caro, Jürgen
AU - Huang, Aisheng
N1 - Publisher Copyright: © The Royal Society of Chemistry.
PY - 2018/12/28
Y1 - 2018/12/28
N2 - Developing a novel MOF membrane material with switchable separation performance is an exciting and challenging research project. In the present work, we report preparation of a new kind of light induced smart MOF membrane, i.e., Cu(AzDC)(4,4′-BPE) 0.5 membrane, which shows (i) enhanced molecular sieving performance, and (ii) is able to respond quickly to external light stimuli. Two photo-switchable moieties are addressed in the Cu(AzDC)(4,4′-BPE) 0.5 membrane: azobenzene and bis(4-pyridyl)ethylene. When the Cu(AzDC)(4,4′-BPE) 0.5 membrane is in situ irradiated with Vis and UV light, the separation factor of a H 2 /CO 2 mixture can be switched reversibly between 21.3 and 43.7. This switching effect is mainly caused by reduced CO 2 adsorption in the UV-cis state as proven by independent adsorption studies. For a steric reason, adsorption of CO 2 is limited for the UV-cis state. In full agreement with this model, the adsorption of other gases H 2 , CH 4 and N 2 as well as their permeation behaviour is not observably influenced by the trans-cis switching.
AB - Developing a novel MOF membrane material with switchable separation performance is an exciting and challenging research project. In the present work, we report preparation of a new kind of light induced smart MOF membrane, i.e., Cu(AzDC)(4,4′-BPE) 0.5 membrane, which shows (i) enhanced molecular sieving performance, and (ii) is able to respond quickly to external light stimuli. Two photo-switchable moieties are addressed in the Cu(AzDC)(4,4′-BPE) 0.5 membrane: azobenzene and bis(4-pyridyl)ethylene. When the Cu(AzDC)(4,4′-BPE) 0.5 membrane is in situ irradiated with Vis and UV light, the separation factor of a H 2 /CO 2 mixture can be switched reversibly between 21.3 and 43.7. This switching effect is mainly caused by reduced CO 2 adsorption in the UV-cis state as proven by independent adsorption studies. For a steric reason, adsorption of CO 2 is limited for the UV-cis state. In full agreement with this model, the adsorption of other gases H 2 , CH 4 and N 2 as well as their permeation behaviour is not observably influenced by the trans-cis switching.
UR - http://www.scopus.com/inward/record.url?scp=85058370886&partnerID=8YFLogxK
U2 - 10.1039/C8TA10541C
DO - 10.1039/C8TA10541C
M3 - Article
AN - SCOPUS:85058370886
VL - 6
SP - 24949
EP - 24955
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
SN - 2050-7488
IS - 48
ER -