Solar-driven interfacial water evaporation has great potential in wastewater remediation. Carbonized biomass materials emerged as attractive solar evaporators due to their excellent solar harvesting, solar-thermal converting, and water delivering capabilities. In this study, antimony doped tin oxide (ATO) was loaded to sugarcane that was then carbonized to obtain composite solar evaporator CS@ATO which delivered a solar absorption of 99 %, a solar evaporation rate of 1.43 kg m⁻² h⁻¹ and an efficiency of 95.3 %. Treated with CS@ATO, the concentrations of heavy metal ions in wastewater were reduced by 3–4 orders, and dyes in wastewater were removed almost completely. For seawater desalination with CS@ATO, the contents of the main cations in the collected fresh water were lower than the levels in drinking water defined by WHO. CS@ATO also exhibited long-term service capability in both wastewater remediation and seawater desalination. These results suggested great potential of CS@ATO in the aforementioned environment related applications.

太阳能驱动的界面水蒸发在废水修复方面具有巨大潜力。碳化生物质材料因其出色的太阳能收集、太阳能热转换和输水能力而成为有吸引力的太阳能蒸发器。在这项研究中，将锑掺杂氧化锡（ATO）负载到甘蔗中，然后碳化以获得复合太阳能蒸发器 CS@ATO，其太阳能吸收率为 99 %，太阳能蒸发率为 1.43 kg m ^-2  h ^-1效率为 95.3%。用 CS@ATO 处理后，废水中的重金属离子浓度降低了 3-4 个数量级，废水中的染料几乎被完全去除。对于使用 CS@ATO 进行的海水淡化，收集到的淡水中主要阳离子的含量低于 WHO 定义的饮用水中的水平。CS@ATO 在废水修复和海水淡化方面也表现出了长期的服务能力。这些结果表明 CS@ATO 在上述环境相关应用中的巨大潜力。