PDA@PPHF太阳能驱动界面蒸发性能及水质净化研究

Interfacial evaporation and water purification performances of PDA@PPHF driven by solar energy

将聚多巴胺(PDA)负载在聚丙烯中空纤维(PPHF)膜上制备PDA@PPHF复合材料,研究了其在太阳能驱动下的界面蒸发性能及水处理性能。结果表明,在1个太阳光强下,PDA@PPHF复合材料的水蒸发效率达到80.84%,是纯水自然蒸发效率的4.2倍。此外,PDA@PPHF复合材料在1 kW/m^(2)太阳能驱动下进行了海水除盐和重金属以及染料废水净化,展现出良好的净水效果。实验结果表明,其有潜力应用于海水淡化、废水净化等领域,缓解水资源短缺问题。

PDA@PPHF compound material is prepared through loading polydopamine(PDA)on polypropylene-based hollow fiber(PPHF)membrane.The interfacial evaporation performance and water treatment performance of PDA@PPHF composite material driven by solar energy are studied.It is found that the evaporation efficiency of water by PDA@PPHF composite material at one solar intensity(1 kW·m^(-2))reaches 80.84%,4.2 times the natural evaporation efficiency of pure water.In addition,PDA@PPHF composite material is driven by 1 kW·m^(2) solar energy intensity for seawater desalination,heavy metal wastewater purification and dye wastewater purification,showing good water purification effect.The results show that the material has the potential application in seawater desalination,wastewater purification and other aspects to provide fresh water to alleviate the shortage of water resources.