writer：Shan Li, Peng Xiao,* Weiqing Yang, Chang Zhang, Jincui Gu, Shiao-Wei Kuo, Tao Chen*
keywords：nanostructured membranes, superhydrophobic and photothermal, selfsupported and self-adaptive, thermal management, urban agriculture
source：期刊
specific source：Adv. Funct. Mater. 2023, inpress
Issue time：2023年

Solar-enabled thermal management is emerging as a promising candidate to exploit green, low-cost and efficient heat-related applications, which has drawn extensive intensity for the development of solar-to-thermal materials with high-performance and desirable functionality. However, there still remains considerable challenges, such as the sharp temperature fluctuations under water-related environment, high cost, complex fabrication approaches and limited energy efficiency. Here, we propose superhydrophobic and photothermal nanostructured Janus membranes composed of hierarchical candle soot and transparent polydimethylsiloxane (PDMS) in a simple, low-cost and effective way. The achieved membranes can readily adapt to curved surfaces, and enable efficient solar-to-thermal capability of ~ 68°C under 1 sun and good water-repellant property of ~ 159.7°. Therefore, it can still maintain stable temperature without remarkable temperature decline when exposed to the high-moisture environment. Also, the asymmetric structure can further endow the membrane with declined heat dissipation for high-performance thermal management. Moreover, it can further function as a self-supported agricultural film to continuously heat the soils with stable temperature for efficient bean growth, demonstrating significant potential in the new generation of urban agriculture.