Passive daytime radiative cooling materials toward real-world applications

Progress in Materials Science, Journal Year: 2024, Volume and Issue: 144, P. 101276 - 101276

Published: March 8, 2024

Language: Английский

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Biological optics, photonics and bioinspired radiative cooling

Progress in Materials Science, Journal Year: 2024, Volume and Issue: 144, P. 101291 - 101291

Published: April 4, 2024

Language: Английский

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Bioinspired Metafabric with Dual‐Gradient Janus Design for Personal Radiative and Evaporative Cooling

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 12, 2024

Abstract Personal radiative cooling fabrics are a promising zero‐energy solution for creating cool and comfortable microclimate outdoor crowds. Despite significant progress, achieving efficient under some extreme situations, such as thermal shock intensive physical activity, remains challenge. Herein, bioinspired metafabric with dual‐gradient Janus design is reported personal evaporative cooling. The hierarchical fiber structure allows an excellent solar reflectance of 99.4% mid‐infrared emittance 0.94, inducing skin temperature drop 17.8 °C intense sunlight. Mesoporous silica nanoparticles fixed in the fibrous network can store capacity by atmospheric moisture‐absorption mild humid nighttime release moisture‐desorption hot daytime, providing additional 2.5 °C. Dual‐gradient endows outstanding sweat‐wicking effect high‐performance sweat capacity. In steady‐state evaporation tests, maximum consumption only 0.5 ml h −1 to temperature, preventing harmful excessive sweating. Additionally, also possesses favorable wearability color expansibility. Given these first‐rate features, will pave way development advanced functional fabrics.

Language: Английский

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Bioinspired Durable Daytime Radiative Cooling Wood: Realizing Outdoor Longtime Use

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Daytime radiative cooling dissipates heat from surfaces by reflecting sunlight and emitting infrared radiation to outer space, featuring zero-energy consumption. Wood-based coolers have received more attention due their high emissivity, sustainability, low cost. However, they often degrade under ultraviolet (UV) exposure, resulting in a poor efficiency. Herein, inspired the structure-functionality relationship Saharan silver ants, an outdoor durable wood (DCW) is developed that achieves excellent comprehensive performance via assembly of photonic structure Mica@TiO2 on delignified wood, including both solar reflectance (0.958), emittance (0.95), mechanical strength (47 MPa), UV resistance. The unique can prevent breaking C-O-C skeleton direct sunlight; daytime efficiency DCW maintain 4.5 °C after 720 h exposure. This work paves way for development materials energy savings.

Language: Английский

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Radiative cooling cellulose-based fabric with hierarchical structure for outdoor personal thermal management

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 151482 - 151482

Published: April 19, 2024

Language: Английский

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Advancing thermal comfort: an innovative SiO2 microsphere-decorated shish-kebab film composite for enhanced personal cooling

Advanced Nanocomposites, Journal Year: 2024, Volume and Issue: 1(1), P. 86 - 93

Published: Jan. 1, 2024

Due to the energy crisis and global warming, personal passive radiative cooling has gained increasingly more attention. However, development of films with high performance durability is still facing crucial challenges. Herein, a SiO2 microspheres-decorated shish-kebab film composite (SSKFC) been developed in this work by spraying technique, which not only emissivity within atmospheric window (8–13 μm), but also possesses transparency remaining mid-infrared band reflectivity towards solar radiation (0.3–2.5 μm). As result, SSKFC capable achieving effective both outdoors (under different weather) indoors (lowering temperature ~ 4.1 °C compared cotton). Additionally, design shows excellent superhydrophobicity under various solvents. Given spectral selectivity, self-cleaning property, present substantial advantages for thermal management.

Language: Английский

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Recent advancements in radiative cooling textiles for personal thermal management

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(25), P. 14866 - 14884

Published: Jan. 1, 2024

This review provides a comprehensive overview of radiative cooling textiles from fundamentals, advanced structures and construction strategies to emerging applications.

Language: Английский

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Integrated Cooling and Heating Regulation in Colored Photonic Crystal Textiles with Janus Structures for Highly Efficient Personal Thermal Management

Composites Part B Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112344 - 112344

Published: Feb. 1, 2025

Language: Английский

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Designer SiO₂ Metasurfaces for Efficient Passive Radiative Cooling

Advanced Materials Interfaces, Journal Year: 2023, Volume and Issue: 11(3)

Published: Nov. 27, 2023

Abstract In recent years, an increasing number of passive radiative cooling materials are proposed in the literature, with several examples relying on use silica (SiO 2 ) due to its unique stability, non‐toxicity, and availability. Nonetheless, bulk phonon‐polariton band, SiO presents a marked reflection peak within atmospheric transparency window (8‐13 µm), leading emissivity decrease that poses challenge fulfilling criteria for sub‐ambient cooling. Thus, latest developments this field devoted design engineered photonic structures, increase potential coolers. This review seeks identify most effective fabrication strategies emitters by evaluating their efficacy, as well scalability, providing in‐depth analysis fundamental principles, structural models, results (both numerical experimental) various types

Language: Английский

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Polarization controllable colored radiative cooler based on photonic metamaterial

Solar Energy Materials and Solar Cells, Journal Year: 2024, Volume and Issue: 266, P. 112693 - 112693

Published: Jan. 6, 2024

Language: Английский

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