Metal–Organic Frameworks for Water Harvesting from Air

Kalmutzki, Markus; Diercks, Christian S.; Yaghi, Omar M.

doi:10.1002/adma.201704304

Cited by 597 publications

(513 citation statements)

References 168 publications

(169 reference statements)

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“…[24] Consequently, harvesting water from air has emerged as another promising approach to address the water shortage issue, especially in the arid and landlocked regions. [24] Consequently, harvesting water from air has emerged as another promising approach to address the water shortage issue, especially in the arid and landlocked regions.…”

Section: Photothermal-assisted Water Harvesting From Airmentioning

confidence: 99%

“…[202,203] In this device, the water adsorbent layer was fabricated by infiltrating MOF-801 powders into porous copper foam, while the solar absorber side was coated with graphite or pyromark painting to ensure the MOF-801 with high temperature (i.e., 80 °C) to desorb water from. [24,[205][206][207] Recent report has demonstrated that optimized water uptake ability will be achieved if the pore diameter of MOFs is above the critical diameter of water capillary action. However, the separation of photothermal materials and MOF-801 brings a huge obstacle to utilize solar-driven heat to obtain the total release of absorbed water within the pores of MOF-801, because of low thermal utilization efficiency.…”

Section: Photothermal-assisted Water Harvesting From Airmentioning

confidence: 99%

“…[23,24] First, solar-driven photothermal effect can be directly used or integrated into other water purification technologies. Given that most of the regions with high water shortage have abundant solar energy resources, these emerging photothermal applications show great potential to utilize solar energy to directly solve the issue of water shortage and improve the overall resilience of the water-energy nexus.…”

Section: Introductionmentioning

confidence: 99%

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Harnessing Solar‐Driven Photothermal Effect toward the Water–Energy Nexus

et al. 2019

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Producing affordable freshwater has been considered as a great societal challenge, and most conventional desalination technologies are usually accompanied with large energy consumption and thus struggle with the trade‐off between water and energy, i.e., the water–energy nexus. In recent decades, the fast development of state‐of‐the‐art photothermal materials has injected new vitality into the field of freshwater production, which can effectively harness abundant and clean solar energy via the photothermal effect to fulfill the blue dream of low‐energy water purification/harvesting, so as to reconcile the water–energy nexus. Driven by the opportunities offered by photothermal materials, tremendous effort has been made to exploit diverse photothermal‐assisted water purification/harvesting technologies. At this stage, it is imperative and important to review the recent progress and shed light on the future trend in this multidisciplinary field. Here, a brief introduction of the fundamental mechanism and design principle of photothermal materials is presented, and the emerging photothermal applications such as photothermal‐assisted water evaporation, photothermal‐assisted membrane distillation, photothermal‐assisted crude oil cleanup, photothermal‐enhanced photocatalysis, and photothermal‐assisted water harvesting from air are summarized. Finally, the unsolved challenges and future perspectives in this field are emphasized. It is envisioned that this work will help arouse future research efforts to boost the development of solar‐driven low‐energy water purification/harvesting.

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Section: Photothermal-assisted Water Harvesting From Airmentioning

confidence: 99%

Section: Photothermal-assisted Water Harvesting From Airmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Harnessing Solar‐Driven Photothermal Effect toward the Water–Energy Nexus

et al. 2019

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“…The adsorption isotherms of water vapor recorded near room temperature for MOFs offer important information about the hydrophobicity/hydrophilicity of their internal surfaces . There are six types of physisorption isotherms in the IUPAC recommendations updated in 2015 ( Figure a) .…”

Section: Assessment Of Hydrophobicity In Mofsmentioning

confidence: 99%

“…Metal–organic frameworks (MOFs), also called porous coordination polymers (PCPs), are a class of porous materials commonly obtained by the facile hydrothermal or solvothermal reactions of metal ions and bridging organic ligands at relatively low temperatures . In the past two decades, extensive research has been devoted to developing new MOFs and to exploring their application potential in many fields, such as gas storage, separation, catalysis, sensing, and biomedicine . Early on, a handful of MOFs was found to show a low affinity toward water and a permanent porosity, and this class of hydrophobic MOFs later received increasing attention due to their potential for use in practical adsorption and separation processes, even under humid conditions or in water.…”

Section: Introductionmentioning

confidence: 99%

Hydrophobic Metal–Organic Frameworks: Assessment, Construction, and Diverse Applications

et al. 2020

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Tens of thousands of metal–organic frameworks (MOFs) have been developed in the past two decades, and only ≈100 of them have been demonstrated as porous and hydrophobic. These hydrophobic MOFs feature not only a rich structural variety, highly crystalline frameworks, and uniform micropores, but also a low affinity toward water and superior hydrolytic stability, which make them promising adsorbents for diverse applications, including humid CO2 capture, alcohol/water separation, pollutant removal from air or water, substrate‐selective catalysis, energy storage, anticorrosion, and self‐cleaning. Herein, the recent research advancements in hydrophobic MOFs are presented. The existing techniques for qualitatively or quantitatively assessing the hydrophobicity of MOFs are first introduced. The reported experimental methods for the preparation of hydrophobic MOFs are then categorized. The concept that hydrophobic MOFs normally synthesized from predesigned organic ligands can also be prepared by the postsynthetic modification of the internal pore surface and/or external crystal surface of hydrophilic or less hydrophobic MOFs is highlighted. Finally, an overview of the recent studies on hydrophobic MOFs for various applications is provided and suggests the high versatility of this unique class of materials for practical use as either adsorbents or nanomaterials.

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Emerging Synergistically Multifunctional and All‐in‐One Nanomaterials and Nanodevices in Advanced Environmental Applications

2019

Artificially Intelligent Nanomaterials

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Metal–Organic Frameworks for Water Harvesting from Air

Cited by 597 publications

References 168 publications

Harnessing Solar‐Driven Photothermal Effect toward the Water–Energy Nexus

Harnessing Solar‐Driven Photothermal Effect toward the Water–Energy Nexus

Hydrophobic Metal–Organic Frameworks: Assessment, Construction, and Diverse Applications

Emerging Synergistically Multifunctional and All‐in‐One Nanomaterials and Nanodevices in Advanced Environmental Applications

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