The wood-based solar-driven interfacial evaporators are inexpensive for generating potable water. Previous research has focused on improving the light absorption capacity of wood-based devices rather than optimizing manufacturing costs, energy consumption, and internal structure. Here, a thermally stable wood-derived aerogel (TWA) with hierarchically ordered microchannels is programmatically designed via delignification and selective thermal treatment. The structural features of the TWA facilitate efficient thermal management during the solar-driven interfacial evaporation process. These features enable controlled hydrophilicity, low thermal conductivity, and good light absorption. By reducing the heat loss of the system, TWA has a high evaporation efficiency of 85.9% under 3 sun irradiation. In addition, TWA can operate in complicated water environments for long periods due to excellent mildew resistance and chemical stability. More importantly, TWA can be used to remove organic dyes and heavy metals in sewage, highlighting the significance of programmable-designed wood aerogel for the solar-driven interfacial evaporator.

木质太阳能驱动的界面蒸发器可用于生产饮用水，成本低廉。以前的研究重点是提高木质设备的光吸收能力，而不是优化制造成本、能耗和内部结构。在这里，通过脱木素和选择性热处理以编程方式设计了一种具有分层有序微通道的热稳定木材衍生气凝胶（TWA）。TWA 的结构特征有助于在太阳能驱动的界面蒸发过程中进行有效的热管理。这些特征能够控制亲水性、低导热性和良好的光吸收。通过减少系统的热损失，TWA在3个太阳照射下具有85.9%的高蒸发效率。此外，由于出色的防霉性和化学稳定性，TWA 可以在复杂的水环境中长期运行。更重要的是，TWA可用于去除污水中的有机染料和重金属，突出了可编程设计的木质气凝胶对于太阳能驱动的界面蒸发器的重要性。