Povzetek
Sorption-based atmospheric water harvesting (SAWH) is recognized as a feasible and sustainable approach to address global water scarcity in arid regions. However, easy-to-prepare and inexpensive salt-based sorbents have stringent requirements referring to sorption duration and environmental humidity; otherwise, the leakage of salt solution can occur. Here, we develop a composite sorbent with remarkably high salt content of 80 wt % and without the risk of leakage by introducing a polytetrafluoroethylene membrane encapsulation method. The developed composite HSCC-E10 shows both fast sorption kinetics inherent to the matrix of composites and high absorption capacity of hygroscopic salt solutions, achieving ultra-high sorption capacity of 3.75 g/g, 2.83 g/g, and 1.47 g/g for 90%, 70%, and 30% relative humidity (RH), respectively. A lab-scale device is developed demonstrating 560 mL/m2 water yield under outdoor natural sunlight. The applicability of proposed sorbents could pave the road for future middle- or large-scale applications, such as vehicle-mounted and continuous SAWH.
Ključne besede
pridobivanje atmosferske vode;vsebnost soli;sorbent;razlitje raztopine;membrana;higroskopska sol;atmospheric water harvesting;salt content;solution leakage;membrane;hygroscopic salt;
Podatki
Jezik: |
Angleški jezik |
Leto izida: |
2021 |
Tipologija: |
1.01 - Izvirni znanstveni članek |
Organizacija: |
UL FS - Fakulteta za strojništvo |
UDK: |
628.116:502.3 |
COBISS: |
91975171
|
ISSN: |
2666-3864 |
Št. ogledov: |
137 |
Št. prenosov: |
56 |
Ocena: |
0 (0 glasov) |
Metapodatki: |
|
Ostali podatki
Sekundarni jezik: |
Slovenski jezik |
Sekundarne ključne besede: |
pridobivanje atmosferske vode;vsebnost soli;sorbent;razlitje raztopine;membrana;higroskopska sol; |
Vrsta dela (COBISS): |
Članek v reviji |
Strani: |
str. 1-17 |
Letnik: |
ǂVol. ǂ2 |
Zvezek: |
ǂiss. ǂ12 |
Čas izdaje: |
Dec. 2021 |
DOI: |
10.1016/j.xcrp.2021.100664 |
ID: |
14229754 |