A Nanostructured Moisture‐Absorbing Gel for Fast and Large‐Scale Passive Dehumidification (Adv. Mater. 17/2022)

Dai, Ming; Zhao, Fang; Fan, Juanjuan; Li, Qing; Yang, Ya-Ting Carolyn; Fan, Zhuangjun; Ling, Shengjie; Yu, Haiying; Liu, Shouxin; Li, Jian; Chen, Wenshuai; Yu, Guihua

doi:10.1002/adma.202270126

Cited by 12 publications

(40 citation statements)

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“…High humidity is a serious issue that may influence people's physical and mental health, and provides a suitable environment for the growth of harmful insects and parasites, corrosion of metal equipment, and damage to architecture (Figure 14a) [95] . Therefore, developing sorbent materials for dehumidification is significant for human health and environmental sustainability.…”

Section: Extended Applications For Sorbent Materialsmentioning

confidence: 99%

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Sorbents for Atmospheric Water Harvesting: From Design Principles to Applications

et al. 2022

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Water scarcity caused by climate change and population growth poses a grave threat to human society. Of the different water purification technologies put forward, one presents a promising strategy that is spatially or temporally non‐restricted—atmospheric water harvesting (AWH). Here we review recent progress in the design and study of AWH sorbents, ranging from the innovative chemistries to the integration of sophisticated architectures and functional components, and clarify the structure–property–performance relationship that governs the water capture and release processes. Features and limitations of each type of sorbents are summarized to elucidate the optimal working environments and modes. Progress in applications extending from water generation to thermal management and agriculture are discussed. Future developments regarding material modifications, performance measurements, and system optimizations are provided to overcome lingering barriers to sorbent design and implementation.

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Section: Extended Applications For Sorbent Materialsmentioning

confidence: 99%

Section: Extended Applications For Sorbent Materialsmentioning

confidence: 99%

Sorbents for Atmospheric Water Harvesting: From Design Principles to Applications

et al. 2022

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“…To capture moisture at different relative humidities (RHs), several hygroscopic materials have been developed, [ 39,40 ] such as functionalized metal‐organic frameworks, lithium chloride (LiCl), lithium bromide (LiBr), calcium chloride (CaCl 2 ) and their derived composites. [ 41–45 ] A series of super‐hygroscopic materials have been fabricated, including a copper‐ethanolamine complex, a cobalt‐complex‐based hygroscopic material, and other hydrogels based on deliquescence salts. [ 46–48 ] Meanwhile, moisture‐driven actuators and robots have attracted increasing attention and demonstrated operation in the humid air.…”

Section: Introductionmentioning

confidence: 99%

“…[ 54–57 ] For hygroscopic issues, although many materials have been developed to absorb moisture from the air, most of these research works are focused on improving the hygroscopic capacity of the materials and using the materials for atmospheric water harvesting, dehumidification, and power generation. [ 35,44 ]…”

Section: Introductionmentioning

confidence: 99%

Hygrothermic Wood Actuated Robotic Hand

et al. 2023

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Figure 5. Wood-based robotic hand and its application in fire rescue. a) Scheme of a hygrothermic wood robotic hand. Digital photographs of a hygrothermic wood robotic hand b) in stretching and c) in grasping; the scale bar is 5 cm. d) The four steps for grabbing a ball using the hygrothermic wood robotic hand at 70 °C. e) Scheme demonstrating the application of the hygrothermic wood actuator in fire rescue. f) Digital photographs of a wooden house used in the rescue simulation scene. g) Four steps of the simulated rescue scene at 170 °C.

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“…[ 1,2 ] However, rapid population growth, extreme climate change, and environmental pollution mean that more than four billion people suffer from severe water scarcity. [ 3 ] In response to this water scarcity, various advanced materials and functional devices have been utilized, including those related to water collection (from rainwater, [ 4 ] moist air, [ 5 ] or water vapor [ 6 ] ) and water purification (desalination, [ 7 ] filtration, [ 8–11 ] or adsorption [ 12–14 ] ). Fog flow represents a common water source that contains ≈13 000 trillion liters; thus, it is a promising resource that may help society successfully deal with water‐related challenges.…”

Section: Introductionmentioning

confidence: 99%

Bio‐inspired Copper Kirigami Motifs Leading to a 2D–3D Switchable Structure for Programmable Fog Harvesting and Water Retention

Zhang

et al. 2022

Adv Funct Materials

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Bio‐inspired fog harvesting devices (FHDs) have been exploited to address water shortages. Despite the advances achieved, efficient and continuous fog harvesting is still hindered by some challenges: 1) a single mechanism appears to be insufficient to achieve optimal water collection efficiency; 2) the re‐evaporation of the harvested water results in decreased water collection. In this study, inspired by the unique feature of cacti, Nepenthes alata, lotus leaves, and pinecones, a 2D–3D switchable copper sheet (SLP‐SHL@SP‐Cu) is reported, which results in excellent fog capture and water transport rates. During the fog harvesting process, the captured droplets transport from the tip of the top surface to the bottom under the Laplace forces (cacti spine), capillary forces (lotus leaves), and low surface energy (Nepenthes alata). Notably, the novel FHD responds in a preprogrammed manner to changes in humidity and performs a dynamic transformation from a 2D planar structure to a 3D helical structure (and in reverse), enabling efficient fog harvesting (in the 3D geometry) and water storage (in its 2D form). Thus, this study opens a new avenue for the practical applications of highly effective FHDs with increased water retention abilities.

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A Nanostructured Moisture‐Absorbing Gel for Fast and Large‐Scale Passive Dehumidification (Adv. Mater. 17/2022)

Cited by 12 publications

References 0 publications

Sorbents for Atmospheric Water Harvesting: From Design Principles to Applications

Sorbents for Atmospheric Water Harvesting: From Design Principles to Applications

Hygrothermic Wood Actuated Robotic Hand

Bio‐inspired Copper Kirigami Motifs Leading to a 2D–3D Switchable Structure for Programmable Fog Harvesting and Water Retention

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