TY - GEN
T1 - Metal-organic Frameworks (MOFs) as advanced sorbents for indoor moisture control - a comparative study
AU - Ding, Dong
AU - Qin, Menghao
PY - 2025
Y1 - 2025
N2 - Metal-organic frameworks (MOFs) have emerged as a highly promising class of sorbent materials for indoor moisture control. Despite the synthesis and reporting of over 80,000 different MOFs in the past decades, their application in indoor moisture management remains limited. Discovering more new potential MOFs is one of the primary works that should be done. In this study, four distinct MOFs: Fe-Mil-100, Al-MOF-303, Al-3,5-PDA, and Al-Mil-53(MUC), and commercial sorbent, zeolite 13X, were compared through a series of experimental tests to investigate their potential in indoor moisture regulation. The results of water adsorption isotherms help us understand the prevalent adsorption mechanism and intrinsic properties of different materials. The drying test results indicate the regeneration conditions for each material. The moisture buffer value (MBV) of different materials shows the material’s moisture buffering ability when applied in a passive method. Results indicate that all MOFs exhibit S-shape isotherms, significantly higher water adsorption capacities, and considerably gentler regeneration conditions compared to zeolite 13X. Notably, Al-Mil-53(MUC) has an operating range between 40% and 65% RH and can be fully regenerated at 50 ℃, making it a prime candidate for autonomous moisture control in residential buildings. Since these MOFs have different trigger points, water uptake, and hysteresis, they can be applied in different scenarios and with different methods. This study provides a valuable reference for future research on the application of MOFs in indoor moisture control.
AB - Metal-organic frameworks (MOFs) have emerged as a highly promising class of sorbent materials for indoor moisture control. Despite the synthesis and reporting of over 80,000 different MOFs in the past decades, their application in indoor moisture management remains limited. Discovering more new potential MOFs is one of the primary works that should be done. In this study, four distinct MOFs: Fe-Mil-100, Al-MOF-303, Al-3,5-PDA, and Al-Mil-53(MUC), and commercial sorbent, zeolite 13X, were compared through a series of experimental tests to investigate their potential in indoor moisture regulation. The results of water adsorption isotherms help us understand the prevalent adsorption mechanism and intrinsic properties of different materials. The drying test results indicate the regeneration conditions for each material. The moisture buffer value (MBV) of different materials shows the material’s moisture buffering ability when applied in a passive method. Results indicate that all MOFs exhibit S-shape isotherms, significantly higher water adsorption capacities, and considerably gentler regeneration conditions compared to zeolite 13X. Notably, Al-Mil-53(MUC) has an operating range between 40% and 65% RH and can be fully regenerated at 50 ℃, making it a prime candidate for autonomous moisture control in residential buildings. Since these MOFs have different trigger points, water uptake, and hysteresis, they can be applied in different scenarios and with different methods. This study provides a valuable reference for future research on the application of MOFs in indoor moisture control.
KW - MOFs
KW - Moisture control
KW - Characterization
KW - Regeneration
U2 - 10.1007/978-981-97-8305-2_48
DO - 10.1007/978-981-97-8305-2_48
M3 - Article in proceedings
SN - 978-981-97-8304-5
SN - 978-981-97-8307-6
VL - 1
T3 - Lecture Notes in Civil Engineering
SP - 346
EP - 352
BT - Multiphysics and Multiscale Building Physics: Proceedings of the 9th International Building Physics Conference
A2 - Berardi, Umberto
PB - Springer
T2 - 9th International Buildings Physics Conference
Y2 - 25 July 2024 through 27 July 2024
ER -