Controllable Synthesis of ZnAl Layered Double Oxide for Passive Radiative Cooling

Passive radiative cooling (PRC) shows potential for energy savings, especially in the construction and transportation industries. However, it is prone to efficiency loss due to influences from the environment. To address this challenge, we constructed a ZnAl layered double oxide (ZnAl-LDO) substrate, which has optical selectivity, and modified it with a cross-linked surfactant of SiO₂/PFDTES, finally yielding an advanced ZnAl-LDO_M2 coating material with PRC performance and