Development and Characterization of Novel Wood-based Composite Materials for Solar-Powered Atmospheric Water Harvesting: A Machine Intelligence supported Approach

Journal of Cleaner Production, Journal Year: 2025, Volume and Issue: unknown, P. 145061 - 145061

Published: Feb. 1, 2025

Language: Английский

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Self‐Sustained Water and Electricity Generation from Ambient Humidity by Using Metal‐Ion Controlled Hygroscopic Hydrogels

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

Abstract Unlike traditional water production and electricity generation, direct utilization of atmospheric moisture is a promising way to simultaneously generate power. Here, tailored hygroscopic hydrogel developed through the coupling electron empty orbitals lone pairs, forming [metal−N/O] absorb active sites. The aims capture from ambient humidity transfer gaseous liquid water, storing flowable into hydrogel. process includes two stages, initial small amount chemisorption on sites followed by abundant physisorption hydroxyls. Benefiting surface, uptake Ni 0.92 g −1 at 20 °C 40% RH, while dehydration temperature only 40 °C. Packaging three layers hydrogel, 4 mL h drinking standard produced using 9 when exposed air light. Upon creating moist area carbon paper as electrodes, stable open circuit voltage 533.2 mV generated in self‐sustained manner.

Language: Английский

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Ambient‐Dried MOF/Cellulose‐Based Aerogels for Atmospheric Water Harvesting and Sustainable Water Management in Agriculture

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

Abstract Atmospheric water harvesting (AWH) is a promising approach to address scarcity; however, achieving scalable and efficient materials remains critical challenge. Herein, we present ambient‐dried aerogels composed of biobased (cellulose nanofibers sodium alginate), integrated with metal–organic frameworks (MOFs) hygroscopic salts for effective AWH. A key innovation in this system the functional incorporation MOFs into aerogel scaffolds, where they enhance capture at low relative humidity (RH) contribute improved salt stabilization. The matrix facilitates ambient drying, while promoting transport absorption. prepared demonstrate competitive uptake 0.32 g/g 25% RH 3.52 90% within 12 h. When coated carbon nanotube (CNT) layer, achieve solar‐driven evaporation efficiency ≈70%. As proof concept, were used create microclimates inside terrarium, atmospheric absorbed by was released under solar irradiation sustain plant growth two weeks. This stategy can be extended greenhouses, leveraging high waste heat enhanced regeneration, alongside ventilation systems optimize collection efficiency, representing transformative opportunity sustainable agriculture.

Language: Английский

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Shrinkage‐Resistant Thermo‐Responsive Hygroscopic Hydrogel Toward Ultra‐Rapid Cycling Atmospheric Water Harvesting

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 6, 2025

Abstract Freshwater scarcity presents a significant threat to socio‐economic development, particularly in agriculture and light industry remote underdeveloped regions. Sorption‐based atmospheric water harvesting (SAWH) offers promising solution, yet the primary challenge remains efficient continuous extraction of clean from air. Here, supramolecular design strategy is proposed synthesize shrinkage‐resistant thermos‐responsive hydrogel (PCC20@LiCl) that demonstrates rapid thermal response, stable phase‐transition size, effective lithium chloride (LiCl) entrapment. The achieves high sorption capacities 0.99 ± 0.03 5.43 0.37 at 20% 80% relative humidity, respectively, along with solar‐driven release rate. Additionally, this study solar‐powered, rapid‐cycling SAWH device reuses desorption heat maximize sorbent efficiency. By alternately switching between chambers, completes nine consecutive cycles per day, achieving collection rate 1,417 1,134.4 . This work potential meet domestic irrigation demands, advancing technology for practical implementation economically

Language: Английский

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Facile Construction of Flame-Resistant and Thermal-Insulating Sodium Alginate Aerogel Incorporating N- and P-Elements

Polymers, Journal Year: 2024, Volume and Issue: 16(19), P. 2814 - 2814

Published: Oct. 4, 2024

In this study, sodium alginate (SA) aerogel cross-linked with Ca2+ was selected as the basic skeleton to construct a lightweight, flame retardant, and thermal insulating composite via modification melamine phytic acid. The resulting aerogel, SA-1.0 MP, achieved conductivity low 0.0379 W/(m·K). Compared pristine SA MP demonstrated improved fire resistance, evidenced by substantial increase in limiting oxygen index (LOI) from 21.5% 48.8% V-0 rating UL-94 test. Furthermore, synergistic mechanism proposed explain its remarkable flame-retardant capability.

Language: Английский

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A comprehensive review of approaches, systems, and materials used in adsorption-based atmospheric water harvesting

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 958, P. 177885 - 177885

Published: Dec. 10, 2024

Language: Английский

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In situ growth of ZIF-67 on silanization-modified cellulose fibers with enhanced toluene adsorption property and hydrophobicity

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: unknown, P. 131222 - 131222

Published: Dec. 1, 2024

Language: Английский

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