Device design and optimization of sorption-based atmospheric water harvesters

Device, Journal Year: 2023, Volume and Issue: 1(4), P. 100099 - 100099

Published: Oct. 1, 2023

Atmospheric water harvesting (AWH) is a promising approach to providing fresh areas without access large bodies of freshwater and mitigating imbalanced distribution. Besides material innovations, researchers have explored different design strategies for these AWH devices, which can be divided into monocyclic multicyclic types. Monocyclic harvesters further categorized those using upward vapor escape, research efforts focused on reducing top cover heating increasing sorption capacity, downward heat recycling cooling enhance condensation efficiency. Notably, some devices utilize radiative require zero external energy input. For harvesters, optimizing the sorbents' uptake kinetics device geometry guarantee continuous harvesting.

Language: Английский

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Understanding and Utilizing Droplet Impact on Superhydrophobic Surfaces: Phenomena, Mechanisms, Regulations, Applications, and Beyond

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(11)

Published: Dec. 9, 2023

Droplet impact is a ubiquitous liquid behavior that closely tied to human life and production, making indispensable impacts on the big world. Nature-inspired superhydrophobic surfaces provide powerful platform for regulating droplet dynamics. The collision between classic phenomena of advanced manufacture lighting up future. Accurately understanding, predicting, tailoring dynamic behaviors are progressive steps integrate into versatile applications further improve efficiency. In this review, progress phenomena, mechanisms, regulations, surfaces, bridging gap impact, engineering comprehensively summarized. It highlighted contact rebound two focal points, their fundamentals regulations elaborately designed discussed in detail. For first time, diverse classified four categories according requirements rebound. remaining challenges also pointed out future directions trigger subsequent research from both scientific applied perspectives outlined. review expected general framework understanding utilizing impact.

Language: Английский

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Shaping the Water-Harvesting Behavior of Metal–Organic Frameworks Aided by Fine-Tuned GPT Models

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(51), P. 28284 - 28295

Published: Dec. 13, 2023

We construct a data set of metal-organic framework (MOF) linkers and employ fine-tuned GPT assistant to propose MOF linker designs by mutating modifying the existing structures. This strategy allows model learn intricate language chemistry in molecular representations, thereby achieving an enhanced accuracy generating structures compared with its base models. Aiming highlight significance design strategies advancing discovery water-harvesting MOFs, we conducted systematic variant expansion upon state-of-the-art MOF-303 utilizing multidimensional approach that integrates extension multivariate tuning strategies. synthesized series isoreticular aluminum termed Long-Arm MOFs (LAMOF-1 LAMOF-10), featuring bear various combinations heteroatoms their five-membered ring moiety, replacing pyrazole either thiophene, furan, or thiazole rings combination two. Beyond consistent robust architecture, as demonstrated permanent porosity thermal stability, LAMOF offers generalizable synthesis strategy. Importantly, these 10 LAMOFs establish new benchmarks for water uptake (up 0.64 g g-1) operational humidity ranges (between 13 53%), expanding diversity MOFs.

Language: Английский

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Entangled Mesh Hydrogels with Macroporous Topologies via Cryogelation for Rapid Atmospheric Water Harvesting

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(27)

Published: April 18, 2024

Abstract Sorption‐based atmospheric water harvesting (SAWH) is a promising technology to alleviate freshwater scarcity. Recently, hygroscopic salt‐hydrogel composites (HSHCs) have emerged as attractive candidates with their high uptake, versatile designability, and scale‐up fabrication. However, achieving high‐performance SAWH applications for HSHCs has been challenging because of sluggish kinetics, attributed limited mass transport properties. Herein, universal network engineering hydrogels using cryogelation method presented, significantly improving the kinetics HSHCs. As result entangled mesh confinements formed during cryogelation, stable macroporous topology attained maintained within obtained entangled‐mesh (EMHs), leading enhanced properties compared conventional dense (CDHs). With it, corresponding EMHs (HEMHs) simultaneously exhibit faster moisture sorption solar‐driven desorption. Consequently, rapid‐cycling HEMHs‐based harvester delivers practical production 2.85 L kg sorbents −1 day via continuous eight sorption/desorption cycles, outperforming other state‐of‐the‐art hydrogel‐based sorbents. Significantly, generalizability this strategy validated by extending it used in Overall, work offers new approach efficiently address long‐standing challenges current HSHCs, promoting them toward next‐generation applications.

Language: Английский

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Passive atmospheric water harvesting: Materials, devices, and perspectives

Nano Energy, Journal Year: 2024, Volume and Issue: 125, P. 109572 - 109572

Published: April 5, 2024

Language: Английский

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Solar-driven scalable hygroscopic gel for recycling water from passive plant transpiration and soil evaporation

Nature Water, Journal Year: 2024, Volume and Issue: 2(7), P. 663 - 673

Published: July 10, 2024

Language: Английский

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A Hybrid Photocatalytic System Splits Atmospheric Water to Produce Hydrogen

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(19)

Published: Jan. 9, 2024

Abstract Large‐scale photocatalytic water‐splitting panel reactor system is developed and demonstrated its commercial feasibility. However, water scarcity one of the leading challenges for sustainable development hydrogen generation in a well‐lit area. Here, harvesting form air‐photothermal evaporation‐photocatalytic evolution (AWPH) devised. The hybrid comprising carbonized wood (CWx) combined with hygroscopic salt ZnCl 2 Pt‐modified g‐C 3 N 4 nanosheets (Pt‐CN) as photocatalyst developed, which has vertical pore structure that can provide attachment sites salt. adsorbed by driven along channels to due photothermal conversion effect. bi‐phase interfaces vapor/photocatalyst/hydrogen produced photothermal‐photocatalytic significantly reduce interface barrier substantially lower resistance transport. CW550 exhibited uptake 0.56 g −1 yield 21.99 µmol cm −2 under 100 mW illumination at flow rate mL min 5 h half atmospheric pressure.

Language: Английский

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Hydrogels in solar-driven water and energy production: Recent advances and future perspectives

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 492, P. 152303 - 152303

Published: May 16, 2024

Hydrogels are emerging as an ideal platform for sustainable water and energy nexuses due to their low-cost, ease of processing, versatile functions, unique structural networks, high adaptability. The establishment a solar-thermal-electricity system assumes critical importance in achieving effective solar utilization. This review focuses on recent advances hydrogel-enabled steam generation (SGG) atmospheric harvesting (AWH) systems discuss extended applications renewable energy, such thermal-electricity green hydrogen generation. Furthermore, advanced material development various engineering strategies proposed enhance efficiency, taking into account the fundamental structure–property-application relationships (SPAR). Finally, research challenges future opportunities studies industrial implementation hydrogel-based freshwater put forward.

Language: Английский

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Integrated copper‐based Janus thermal system for efficient water harvesting around the clock

Droplet, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 5, 2025

Abstract Many regions across the globe are grappling with water scarcity issues, prompting exploration of innovative harvesting techniques. While development high‐performance materials has been widely documented, these technologies often rely on a singular source limited efficiency. This study presents dual‐functional copper Janus system that facilitates continuous freshwater by integrating seawater desalination powered solar energy during daylight hours and fog collection night morning time. The consists sheet foam substrate, featuring superhydrophilic pores arranged superhydrophobic surface, as well flake‐like structures made soot‐carbon particles, which deposited framework foam. rate this measured at 210.65 kg m −2 h −1 , while solar‐driven evaporation under 1‐sun conditions is reported 1.44 . efficiency have enhanced 28.72% 183.27%, respectively. Furthermore, demonstrates strong consistent performance even after repeated use, ensuring sustained over prolonged periods. Therefore, promising avenue for offers valuable insights advancement sustainable production methods.

Language: Английский

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Progress and perspectives of sorption-based atmospheric water harvesting for sustainable water generation: Materials, devices, and systems

Science Bulletin, Journal Year: 2023, Volume and Issue: 69(5), P. 671 - 687

Published: Dec. 9, 2023

Language: Английский

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