Li Xiuling, Wang Mingqun, Tao Huayu, Ge Bo, Liu Shuai, Liu Junchang, Ren Guina, Zhang Zhaozhu
School of Materials Science and Engineering, Liaocheng University, Liaocheng, Shandong 252059, China.
School of Materials Science and Engineering, Liaocheng University, Liaocheng, Shandong 252059, China.
J Colloid Interface Sci. 2023 Nov;649:107-117. doi: 10.1016/j.jcis.2023.06.071. Epub 2023 Jun 15.
The shortage of drinking water has become a global problem, coastal cities can make full use of abundant seawater resources by desalination technology to ease the contradiction between supply and demand. However, fossil energy consumption contradicts the goal of reducing carbon dioxide emissions. Currently, researchers favor interfacial solar desalination devices relying only on clean solar energy. Based on the structure optimization of the evaporator, a kind of device composed of a superhydrophobic BiOI (BiOI-FD) floating layer and CuO polyurethane sponge (CuO sponge) is constructed in this paper, with its design advantages presented in the following two aspects: 1. The novel BiOI-FD photocatalyst in the floating layer reduces the surface tension and realizes the degradation of the enriched pollutants, ensuring the device to achieve solar desalination and inland sewage purification; 2. CuO sponge can inhibit salt crystallization and realize the combination of the water transport and photothermal layers. Particularly, the photothermal evaporation rate of the interface device reached 2.37 kg m h.The novel interface evaporator design will bring a new solution for solar desalination, sewage treatment and large-scale application.
饮用水短缺已成为全球性问题，沿海城市可通过海水淡化技术充分利用丰富的海水资源来缓解供需矛盾。然而，化石能源消耗与减少二氧化碳排放的目标相悖。目前，研究人员青睐仅依赖清洁太阳能的界面太阳能淡化装置。基于蒸发器的结构优化，本文构建了一种由超疏水BiOI（BiOI-FD）浮层和CuO聚氨酯海绵（CuO海绵）组成的装置，其设计优势体现在以下两个方面：1. 浮层中新型的BiOI-FD光催化剂降低了表面张力并实现了富集污染物的降解，确保该装置实现太阳能淡化和内陆污水净化；2. CuO海绵可抑制盐结晶并实现水传输层和光热层的结合。特别地，该界面装置的光热蒸发速率达到2.37 kg m² h⁻¹。这种新型界面蒸发器设计将为太阳能淡化、污水处理及大规模应用带来新的解决方案。
