Ahmed Numan, Xiong Xinhong, Zhang Luzhi, Sattar Fazli, Chen Bo, Jing Tu, Cui Jiaxi
Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China Huzhou, Huzhou 313000, China.
Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, China.
ACS Appl Mater Interfaces. 2025 May 14;17(19):27629-27650. doi: 10.1021/acsami.5c02937. Epub 2025 Apr 30.
Passive daytime radiative cooling (PDRC) is a sustainable technology that reduces temperature by utilizing materials with high solar reflectance and thermal emittance to provide cooling without electricity. However, its performance is often compromised by dust and environmental contamination, with even minimal dust deposition (0.1 mg/cm) reducing cooling capacity by ∼7.1 W/m. To overcome this, superhydrophobicity has been integrated into PDRC systems through various techniques and materials. This Review explores superhydrophobic PDRC (SH-PDRC) systems, examining their principles, preparation strategies, and material innovations. Advanced fabrication methods, including electrohydrodynamics, phase separation, chemical vapor deposition, and layered patterns, have enabled the development of hierarchical structures that optimize solar reflectance, infrared emissivity, and water repellency. A variety of polymeric, inorganic, and hybrid materials is used to achieve durability, thermal stability, and environmental resilience. These materials are tailored to enhance performance for long-term use in extreme conditions, ensuring a high radiative cooling efficiency. SH-PDRC systems have potential applications in wearable textiles, agricultural greenhouses, and food preservation, demonstrating their versatility. By summarizing recent progress and challenges, this Review aims to provide researchers with clear guidelines for fabricating advanced SH-PDRC systems that achieve enhanced cooling performance, environmental durability, and efficiency, paving the way for designing the future of cooling.
被动式日间辐射冷却（PDRC）是一种可持续技术，它通过利用具有高太阳反射率和热发射率的材料来降低温度，从而在无需电力的情况下实现冷却。然而，其性能常常因灰尘和环境污染而受损，即使是极少量的灰尘沉积（0.1毫克/平方厘米）也会使冷却能力降低约7.1瓦/平方米。为了克服这一问题，已通过各种技术和材料将超疏水性集成到PDRC系统中。本综述探讨了超疏水PDRC（SH-PDRC）系统，研究了它们的原理、制备策略和材料创新。先进的制造方法，包括电流体动力学、相分离、化学气相沉积和分层图案，已促成了优化太阳反射率、红外发射率和拒水性的分级结构的发展。使用了各种聚合物、无机和混合材料来实现耐久性、热稳定性和环境适应性。这些材料经过定制，以增强在极端条件下长期使用的性能，确保高辐射冷却效率。SH-PDRC系统在可穿戴纺织品、农业温室和食品保鲜方面具有潜在应用，展示了它们的多功能性。通过总结近期的进展和挑战，本综述旨在为研究人员提供明确的指导方针，以制造出具有增强冷却性能、环境耐久性和效率的先进SH-PDRC系统，为冷却技术的未来设计铺平道路。
