Details
Original language | English |
---|---|
Article number | 2210235 |
Number of pages | 9 |
Journal | Advanced materials |
Volume | 35 |
Issue number | 31 |
Early online date | 23 May 2023 |
Publication status | Published - 3 Aug 2023 |
Abstract
Water harvesting using the metal-organic framework (MOF)-801 is restricted by limited working capacity, powder structuring, and finite stability. To overcome these issues, MOF-801 is crystallized on the surface of macroporous poly(N-isopropylacrylamide-glycidyl methacrylate) spheres, called P(NIPAM-GMA), through an in situ confined growth strategy, forming spherical MOF-801@P(NIPAM-GMA) composite with temperature-responsive function. By lowering the nucleation energy barrier, the average size of the MOF-801 crystals decreases by 20 times. Thus, abundant defects as adsorption sites for water can be installed in the crystals lattices. As a consequence, the composite provides an unprecedented high water harvesting efficiency. The composite is produced in the kilogram-scale and can capture 1.60 kg H2O/kg composite/day from 20% relative humidity between 25 and 85 °C. This study provides an effective methodology for improving the adsorption capacity through controlled defects formation as adsorption sites and to improve the kinetics through the design of a composite with macroporous transport channel network.
Keywords
- abundant defects, highly efficient water harvesting, nanoscale engineering, rapid kinetics, temperature-responsive adsorption/desorption
ASJC Scopus subject areas
- Materials Science(all)
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Advanced materials, Vol. 35, No. 31, 2210235, 03.08.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Engineering of Defective MOF-801 Nanostructures within Macroporous Spheres for Highly Efficient and Stable Water Harvesting
AU - Yang, Chuanruo
AU - Wu, Hao
AU - Yun, Jimmy
AU - Jin, Junsu
AU - Meng, Hong
AU - Caro, Jürgen
AU - Mi, Jianguo
N1 - Funding Information: This study was supported by the National Natural Science Foundation of China (21878017) and the National Key R&D Program of China (2017YFB0603300).
PY - 2023/8/3
Y1 - 2023/8/3
N2 - Water harvesting using the metal-organic framework (MOF)-801 is restricted by limited working capacity, powder structuring, and finite stability. To overcome these issues, MOF-801 is crystallized on the surface of macroporous poly(N-isopropylacrylamide-glycidyl methacrylate) spheres, called P(NIPAM-GMA), through an in situ confined growth strategy, forming spherical MOF-801@P(NIPAM-GMA) composite with temperature-responsive function. By lowering the nucleation energy barrier, the average size of the MOF-801 crystals decreases by 20 times. Thus, abundant defects as adsorption sites for water can be installed in the crystals lattices. As a consequence, the composite provides an unprecedented high water harvesting efficiency. The composite is produced in the kilogram-scale and can capture 1.60 kg H2O/kg composite/day from 20% relative humidity between 25 and 85 °C. This study provides an effective methodology for improving the adsorption capacity through controlled defects formation as adsorption sites and to improve the kinetics through the design of a composite with macroporous transport channel network.
AB - Water harvesting using the metal-organic framework (MOF)-801 is restricted by limited working capacity, powder structuring, and finite stability. To overcome these issues, MOF-801 is crystallized on the surface of macroporous poly(N-isopropylacrylamide-glycidyl methacrylate) spheres, called P(NIPAM-GMA), through an in situ confined growth strategy, forming spherical MOF-801@P(NIPAM-GMA) composite with temperature-responsive function. By lowering the nucleation energy barrier, the average size of the MOF-801 crystals decreases by 20 times. Thus, abundant defects as adsorption sites for water can be installed in the crystals lattices. As a consequence, the composite provides an unprecedented high water harvesting efficiency. The composite is produced in the kilogram-scale and can capture 1.60 kg H2O/kg composite/day from 20% relative humidity between 25 and 85 °C. This study provides an effective methodology for improving the adsorption capacity through controlled defects formation as adsorption sites and to improve the kinetics through the design of a composite with macroporous transport channel network.
KW - abundant defects
KW - highly efficient water harvesting
KW - nanoscale engineering
KW - rapid kinetics
KW - temperature-responsive adsorption/desorption
UR - http://www.scopus.com/inward/record.url?scp=85163609239&partnerID=8YFLogxK
U2 - 10.1002/adma.202210235
DO - 10.1002/adma.202210235
M3 - Article
C2 - 37219533
AN - SCOPUS:85163609239
VL - 35
JO - Advanced materials
JF - Advanced materials
SN - 0935-9648
IS - 31
M1 - 2210235
ER -