Ion Substitution Strategy toward Spectral Tunability of Environmentally Friendly Rare Earth Sulfide Lattices for Radiative Cooling
Ion Substitution Strategy toward Spectral Tunability of Environmentally Friendly Rare Earth Sulfide Lattices for Radiative Cooling
复制标题
DOI：
10.1021/acssuschemeng.3c04380
复制
发表时间：
2023-09
期刊：
影响因子：
--
通讯作者：
Le Wang;Gongxun Bai;Peng Xue;Shuqin Zhang;Liang Chen;Shiqing Xu
中科院分区：
文献类型：
--
作者：
Le Wang;Gongxun Bai;Peng Xue;Shuqin Zhang;Liang Chen;Shiqing Xu
辐射供冷技术可以有效地减少白天太阳向建筑物的能量传输，从而对缓解城市热岛效应、降低能耗起到一定的积极作用。采用绿色合成法制备了红色Nd掺杂和橙子La掺杂的γ-Ce 2S 3，并对其形貌和光学性能进行了系统的研究。将制得的微晶粉体与聚（偏氟乙烯-六氟丙烯）按一定比例混合制成的彩色薄膜具有近红外反射率和优越的耐上级环境性能，应用于建筑物表面时可实现3-6 ℃的有效降温。这项研究拓展了节能建筑材料的思路，丰富了通往碳中和可持续未来的道路。
Radiation cooling technology can effectively reduce the energy transmission of the sun to the building during the day, thus playing a certain positive role in alleviating the urban heat island effect and reducing energy consumption. In this study, red Nd-doped γ-Ce2S3and orange La-doped γ-Ce2S3were prepared by the green synthesis method, and their morphologies and optical properties were systematically studied. The color film produced by mixing the prepared microcrystalline powder with poly(vinylidene fluoride-hexafluoro propylene) at a certain proportion has near-infrared reflectivity and superior environmental resistance, achieving effective cooling of 3–6 °C when applied to the building surface. This study expands ideas for energy-efficient building materials and enriches the path to a carbon neutral sustainable future.