{"title":"Bioinspired materials for radiative cooling by biomimetic mineralization","authors":"Tzer-Min Lee, Chih-Ling Huang","doi":"10.1007/s40243-025-00331-9","DOIUrl":null,"url":null,"abstract":"<div><p>Radiative cooling transfers thermal energy to outer space through the mid-infrared spectrum. Silica glass microspheres can create high-emissivity metamaterials. This study prepared mesoporous and silica-based bioglass particles due to strong phonon-polariton resonances of silica and used a biomimetic mineralization process to form calcium carbonate and hydroxyapatite nanoscale structures. These structures scatter and reflect sunlight effectively. Polyvinyl alcohol substrate, with infrared molecular vibration characteristics, formed an interpenetrating polymer network with micro/nano hierarchical structure powders for daytime passive radiation cooling. Characterization of biomimetic mineral coatings included: microstructures observation by field-emission scanning electron microscopy; phase identification by X-ray diffraction; Brunauer–Emmett–Teller surface area and pore size distribution measurement; solar reflectivity and infrared absorption measurement. Taguchi method is an experimental planning method that can handle multiple variables and levels at the same time. The optimized condition level based on Taguchi method can be evaluated as: particle size of 2 μm, mineral period of 3 days, mineral concentration of 50%, and powder concentration of 30%. The radiative cooling performance test outdoors results show that the biomimetic mineralized bioglass coating can reach a maximum temperature reduction of 27.4 °C compared to 304 stainless steel plate at noon by radiation cooling. Adaptive neuro-fuzzy inference system was also used to construct an artificial intelligence model to predict the biomimetic mineralized material optimize radiation cooling and applicability. If the local weather conditions are provided, the radiation cooling performance of the product can be predicted. This study showed bio-inspired materials for radiative cooling by biomimetic mineralization.</p></div>","PeriodicalId":692,"journal":{"name":"Materials for Renewable and Sustainable Energy","volume":"14 3","pages":""},"PeriodicalIF":5.5000,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40243-025-00331-9.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials for Renewable and Sustainable Energy","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1007/s40243-025-00331-9","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Radiative cooling transfers thermal energy to outer space through the mid-infrared spectrum. Silica glass microspheres can create high-emissivity metamaterials. This study prepared mesoporous and silica-based bioglass particles due to strong phonon-polariton resonances of silica and used a biomimetic mineralization process to form calcium carbonate and hydroxyapatite nanoscale structures. These structures scatter and reflect sunlight effectively. Polyvinyl alcohol substrate, with infrared molecular vibration characteristics, formed an interpenetrating polymer network with micro/nano hierarchical structure powders for daytime passive radiation cooling. Characterization of biomimetic mineral coatings included: microstructures observation by field-emission scanning electron microscopy; phase identification by X-ray diffraction; Brunauer–Emmett–Teller surface area and pore size distribution measurement; solar reflectivity and infrared absorption measurement. Taguchi method is an experimental planning method that can handle multiple variables and levels at the same time. The optimized condition level based on Taguchi method can be evaluated as: particle size of 2 μm, mineral period of 3 days, mineral concentration of 50%, and powder concentration of 30%. The radiative cooling performance test outdoors results show that the biomimetic mineralized bioglass coating can reach a maximum temperature reduction of 27.4 °C compared to 304 stainless steel plate at noon by radiation cooling. Adaptive neuro-fuzzy inference system was also used to construct an artificial intelligence model to predict the biomimetic mineralized material optimize radiation cooling and applicability. If the local weather conditions are provided, the radiation cooling performance of the product can be predicted. This study showed bio-inspired materials for radiative cooling by biomimetic mineralization.
期刊介绍：
Energy is the single most valuable resource for human activity and the basis for all human progress. Materials play a key role in enabling technologies that can offer promising solutions to achieve renewable and sustainable energy pathways for the future.
Materials for Renewable and Sustainable Energy has been established to be the world''s foremost interdisciplinary forum for publication of research on all aspects of the study of materials for the deployment of renewable and sustainable energy technologies. The journal covers experimental and theoretical aspects of materials and prototype devices for sustainable energy conversion, storage, and saving, together with materials needed for renewable fuel production. It publishes reviews, original research articles, rapid communications, and perspectives. All manuscripts are peer-reviewed for scientific quality.
Topics include:
1. MATERIALS for renewable energy storage and conversion: Batteries, Supercapacitors, Fuel cells, Hydrogen storage, and Photovoltaics and solar cells.
2. MATERIALS for renewable and sustainable fuel production: Hydrogen production and fuel generation from renewables (catalysis), Solar-driven reactions to hydrogen and fuels from renewables (photocatalysis), Biofuels, and Carbon dioxide sequestration and conversion.
3. MATERIALS for energy saving: Thermoelectrics, Novel illumination sources for efficient lighting, and Energy saving in buildings.
4. MATERIALS modeling and theoretical aspects.
5. Advanced characterization techniques of MATERIALS
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