Abstract：
Nowadays, solar-driven interfacial steam generation (SISG) is a sustainable and green technology for mitigating the water shortage crisis. Nevertheless, SISG is suffering from the enrichment of volatile organic compounds in condensate water and non-volatile organic compounds in feed water in practical applications. Herein, taking inspiration from nature, a dual-functional bifacial-CuCoNi (Bi-CuCoNi) evaporator with a special biomimetic urchin-like microstructure was successfully prepared. The unique design with 2.5-Dimensional bifacial working sides and urchin-like light absorption microstructure provided the Bi-CuCoNi evaporator with remarkable evaporation performance (1.91 kg m-2 h-1 under 1 kW m-2). Significantly, due to the urchin-like microstructure, the adequately exposed catalytic active sites enabled the Bi-CuCoNi/peroxydisulfate (PDS) system to degrade non-volatile organic pollutants (removal rate of 99.3 % in feed water, close to 100 % in condensate water) and the volatile organic pollutants (removal rate of 99.1 % in feed water, 98.2 % in condensate water) simultaneously. Moreover, the Bi-CuCoNi evaporator achieved non-radical pathway degradation at whole-stages. The dual-functional evaporator successfully integrated advanced oxidation processes (AOPs) into SISG, providing a new idea for high-quality freshwater production from polluted wastewater. ENVIRONMENTAL IMPLICATION: Inspired by nature, a dual-functional bifacial CuCoNi evaporator with a special biomimetic urchin-like microstructure formed by CuCoNi oxide nanowires grown on nickel foam by the hydrothermal synthesis method was successfully prepared. The prepared Bi-CuCoNi evaporator can effectively degrade organic pollutants in feed water and condensate water simultaneously during SISG, thus generating high-quality fresh water. Meanwhile, the health risks associated with the accumulation of organic pollutants in water during traditional SISG were reduced via green and sustainable way. The spatial 2.5-Dimensional structural design of Bi-CuCoNi provided new insights for achieving efficient water evaporation and fresh water generation from various polluted wastewater.
摘要：
如今,太阳能驱动的界面蒸汽发电（SISG）是一种可持续的绿色技术，可缓解水资源短缺危机。然而，SISG在实际应用中面临着冷凝水中挥发性有机化合物和给水中非挥发性有机化合物富集的问题。在这里，从大自然中汲取灵感，成功制备了具有特殊仿生海胆状微观结构的双功能双面CuCoNi（Bi-CuCoNi）蒸发器。具有2.5维双面工作面和海胆状光吸收微观结构的独特设计为Bi-CuCoNi蒸发器提供了出色的蒸发性能（1kWm-2下的1.91kgm-2h-1）。重要的是,由于海胆状的微观结构，充分暴露的催化活性位点使Bi-CuCoNi/过氧二硫酸盐（PDS）系统能够降解非挥发性有机污染物（进料水中的去除率为99.3％，冷凝水中接近100%)和挥发性有机污染物(进料水中去除率为99.1%，同时在冷凝水中为98.2%)。此外，Bi-CuCoNi蒸发器在整个阶段实现了非自由基途径降解。双功能蒸发器成功地将高级氧化工艺（AOPs）集成到SISG中，为从污染废水中生产优质淡水提供了新思路。环境含义：受自然启发，通过水热合成法在泡沫镍上生长CuCoNi氧化物纳米线，成功制备了具有特殊仿生海胆状微结构的双功能双面CuCoNi蒸发器。制备的Bi-CuCoNi蒸发器可以有效地同时降解SISG过程中的给水和冷凝水中的有机污染物，从而产生高质量的淡水。同时,通过绿色和可持续的方式减少了传统SISG期间与水中有机污染物积累相关的健康风险。Bi-CuCoNi的空间2.5维结构设计为实现有效的水蒸发和从各种污染废水中产生淡水提供了新的见解。
