Fu Lu, Huang Zhiyu, Zhou Xiang, Deng Liumi, Liao Meng, Chen Shaohua, Wang Hua, Wang Luoxin
College of Materials Science and Engineering, Wuhan Textile University, Wuhan, People's Republic of China.
Environ Technol. 2023 Nov;44(27):4188-4198. doi: 10.1080/09593330.2022.2082326. Epub 2022 Jun 6.
Solar photothermal water evaporation technology has attracted attention owing to its promising applications in wastewater treatment and desalination for producing clean water. However, high-performance solar evaporators are still limited by the complex manufacturing process, less flexibility, intolerance to salt, high cost, and low water evaporation efficiency.In this study, composite fibre paper composed of waste tissue paper, aramid nanofibers, and polyaniline was prepared to produce clean water. The evaporator was designed to pump water through a cotton wick to the composite paper, which reduced heat loss and avoided the deposition of salt on the surface. The use of waste tissue paper solves the problem of waste disposal, increases the commercial value of waste tissue, and reduces production costs. The composite fibre paper exhibited broad-band light absorption of an average of 96%. The average evaporation rate of the solar evaporator was 1.43 kg m h, and the photothermal conversion efficiency was 98.33% under 1 sun illumination. This solar evaporator is easily fabricated and is cost-effective, demonstrating the enormous potential for real-world wastewater treatment and desalination to produce clean water.
太阳能光热水蒸发技术因其在废水处理和海水淡化以生产清洁水方面的广阔应用前景而备受关注。然而，高性能太阳能蒸发器仍受到制造工艺复杂、灵活性较差、不耐盐、成本高以及水蒸发效率低等限制。在本研究中，制备了由废纸巾、芳纶纳米纤维和聚苯胺组成的复合纤维纸以生产清洁水。该蒸发器设计为通过棉芯将水泵送至复合纸，从而减少热损失并避免盐在表面沉积。废纸巾的使用解决了废物处理问题，提高了废纸巾的商业价值并降低了生产成本。复合纤维纸表现出平均96%的宽带光吸收。在1个太阳光照下，太阳能蒸发器的平均蒸发速率为1.43 kg m h，光热转换效率为98.33%。这种太阳能蒸发器易于制造且具有成本效益，展示了在实际废水处理和海水淡化以生产清洁水方面的巨大潜力。
