Two-Linker Mofs-Based Chitosanized Glass Fiber Paper Monolithic Adsorbent for Atmospheric Water Harvesting in Arid Climates
With the increasing demand for freshwater resources, the sustainably and effectively utilization of atmospheric water has become a critical issue. Herein, we customized an efficient and stable monolithic water-adsorbent designed via chitosanized glass fiber paper loaded with two-linker metal-organic frameworks (CGF-mixed-MOFs(Al)). Firstly, a chitosan (CTS) polyelectrolyte layer is constructed on glass fiber paper (GF) to improve the MOFs loading capacity (306.71%) through electrostatic interaction and hydrophilic interaction. Subsequently, a series of two-linker metal-organic frameworks (mixed-MOFs (Al)) composed of MIL-160(Al) and Al-fumarate were tailor-made on CGF surface using a single aluminum source (Al3+) and tunable double ligands of 2, 5-furandicarboxylic acid and fumaric acid. The resultant mixed-MOFs (Al) monolith has better water harvesting ability and faster adsorption kinetics at low humidity because of its more active adsorption sites. Different from CGF-MIL-160(Al) and CGF-Al-fumarate, the water sorption of CGF-mixed-MOFs(Al)5 at 30% RH, 25% RH and 20% RH reached 0.37 g/g, 0.31 g/g and 0.25 g/g, respectively. The advanced nature of the as-prepared CGF-mixed-MOFs(Al)5 could also be evidenced by its low thermo-desorption temperature (35 ℃), sensitive thermal-response capability and long-term operational stability, which guarantees its working reliability and sustainable benefits. Therefore, our customized water adsorption system provides a simple, long-effective, economical and advanced strategy to capture more fresh water from atmosphere in arid climates
Year of publication: |
[2022]
|
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Authors: | Luo, Fan ; Liao, Tingting ; Liang, Xianghui ; Chen, Weicheng ; Wang, Shuangfeng ; Gao, Xuenong ; Zhang, Zhengguo ; Fang, Yutang |
Publisher: |
[S.l.] : SSRN |
Saved in:
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