 Abstract solar-driven interfacial evaporation is an emerging technology for water desalination. Vinyl trimethoxalane, VTMOS, was used to create a single molecular unit that could be combined with bacterial cellulose, BC, fibrous networks to form robust aerogel structures with distinct wetting properties. These aerogels were then used to construct a double-layered evaporator for water desalination. The evaporator achieved high water evaporation rates of 1.91 and 4.20 kg M2H1 under laboratory and outdoor solar conditions, respectively. Additionally, the aerogel evaporator demonstrated unprecedented lightweight, structural robustness, long-term stability under extreme conditions, and excellent salt resistance, making it an ideal solution for water desalination. This article was authored by Qingjian Su, Meng Yu Gao, Shao Shao Yu, and others.