TY - JOUR
T1 - Adsorption-based atmospheric water harvesting
T2 - A review of adsorbents and systems
AU - Bilal, Muhammad
AU - Sultan, Muhammad
AU - Morosuk, Tatiana
AU - Den, Walter
AU - Sajjad, Uzair
AU - Aslam, Mian MA
AU - Shahzad, Muhammad W.
AU - Farooq, Muhammad
N1 - Funding information: The authors acknowledge the financial support from Bahauddin Zakariya University under the research grant of ORIC Project# 2020-21, awarded to Principal Investigator Dr. Muhammad Sultan.
PY - 2022/4/1
Y1 - 2022/4/1
N2 - Atmospheric water harvesting (AWH) has been an appealing prospect for decades to overcome water scarcity in remote areas. Adsorption-based AWH technologies have gained popularity due to their adaptability, and applicability using low-grade heat sources. This study presents up-to-date and future possibilities of adsorbents and systems for adsorption-based AWH. In this review, in-depth advancements in adsorbent materials are compartmentalized into adsorption equilibrium/isotherms, adsorption kinetics, and thermal conductivity. Various systems designs and modifications have been reviewed and classified accordingly. Liquid desiccants i.e., CaCl2 and LiCl-based AWH systems produced in between 0.63 to 1.0 kg/m/d of water. Recently, metal-organic frameworks (MOFs) are realized as effective adsorbents for AWH. Their excellent hydrophilicity, structural integrity, and tailorable structures can provide water in high and low relative humidity (RH) areas. MOF-841 and MOF-801 yielded maximum adsorption uptakes at 25 °C i.e., 0.5 and 0.3 g/g, respectively. MOF- 801 showed an excellent water production of 0.2-0.3 L/kg/d at 5%-40% RH and 20-40°C. MOF-303 delivered ~0.7 L/kg/d at 10% RH and 27oC. Cr-soc-MOF-1 and MIL-101(Cr) resulted in maximum adsorption uptakes i.e., 1.9 g/g and 1.4 g/g, respectively. Future possibilities regarding these captivating and emerging adsorption technologies are discussed as concluding remarks.
AB - Atmospheric water harvesting (AWH) has been an appealing prospect for decades to overcome water scarcity in remote areas. Adsorption-based AWH technologies have gained popularity due to their adaptability, and applicability using low-grade heat sources. This study presents up-to-date and future possibilities of adsorbents and systems for adsorption-based AWH. In this review, in-depth advancements in adsorbent materials are compartmentalized into adsorption equilibrium/isotherms, adsorption kinetics, and thermal conductivity. Various systems designs and modifications have been reviewed and classified accordingly. Liquid desiccants i.e., CaCl2 and LiCl-based AWH systems produced in between 0.63 to 1.0 kg/m/d of water. Recently, metal-organic frameworks (MOFs) are realized as effective adsorbents for AWH. Their excellent hydrophilicity, structural integrity, and tailorable structures can provide water in high and low relative humidity (RH) areas. MOF-841 and MOF-801 yielded maximum adsorption uptakes at 25 °C i.e., 0.5 and 0.3 g/g, respectively. MOF- 801 showed an excellent water production of 0.2-0.3 L/kg/d at 5%-40% RH and 20-40°C. MOF-303 delivered ~0.7 L/kg/d at 10% RH and 27oC. Cr-soc-MOF-1 and MIL-101(Cr) resulted in maximum adsorption uptakes i.e., 1.9 g/g and 1.4 g/g, respectively. Future possibilities regarding these captivating and emerging adsorption technologies are discussed as concluding remarks.
KW - atmospheric water harvesting
KW - adsorbents
KW - technologies
KW - systems
KW - metal-organic framework
KW - solid and liquid desiccants
UR - http://www.scopus.com/inward/record.url?scp=85125928195&partnerID=8YFLogxK
U2 - 10.1016/j.icheatmasstransfer.2022.105961
DO - 10.1016/j.icheatmasstransfer.2022.105961
M3 - Article
AN - SCOPUS:85125928195
SN - 0735-1933
VL - 133
JO - International Communications in Heat and Mass Transfer
JF - International Communications in Heat and Mass Transfer
M1 - 105961
ER -
