Abstract Recently, interfacial solar-driven evaporation has received tremendous attention due to its potential for enhancing solar thermal conversation ability via heat localization at the evaporation interface. Diverse materials and configurations have been explored to boost the evaporation using plastic foam as the thermal insulator at the cost of complex assembly and environmental threats. Herein, we demonstrate a biodegradable, cost-effective, and scalable three-dimensional (3D) cotton paper-based solar steam generator prepared by one-step laser-induced forward transfer in the ambient atmosphere. The as-prepared evaporator has excellent solar absorption ability. The defining advantages of this method are that it can easily form a 3D structure and it is free from hazardous raw material involvement and waste generation. With further novel design by using a natural air gap instead of artificial plastic material to insulate the steam generation area and the underlying bulk water, the as-prepared evaporation system can achieve a high evaporation rate of 1711 g m−2 h−1 with a corresponding efficiency of 83% under one sun illumination. Such solar vaporization functions offer new insights into the future development of high-performance solar steam generators through an environmentally friendly and cost-effective pathway.

中文翻译：

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用于高性能太阳能蒸发的经济高效且环保的激光加工棉纸

摘要 近年来，界面太阳能驱动蒸发由于其通过蒸发界面处的热定位增强太阳能热转换能力的潜力而受到了极大的关注。已经探索了多种材料和配置来使用塑料泡沫作为热绝缘体来促进蒸发，但代价是复杂的组装和环境威胁。在此，我们展示了一种可生物降解、经济高效且可扩展的三维 (3D) 棉纸基太阳能蒸汽发生器，该蒸汽发生器通过在环境大气中一步激光诱导前向转移制备。所制备的蒸发器具有优良的太阳能吸收能力。这种方法的显着优势是它可以轻松形成 3D 结构，并且没有危险原材料的参与和废物的产生。通过使用自然气隙代替人造塑料材料来隔离蒸汽发生区和下面的大量水，进一步的新颖设计，所制备的蒸发系统可以达到 1711 gm−2 h−1 的高蒸发率，相应的在一个阳光照射下的效率为 83%。这种太阳能蒸发功能通过一种环保且具有成本效益的途径为高性能太阳能蒸汽发生器的未来发展提供了新的见解。