Arch-Bridge Photothermal Fabric with Efficient Warp-Direction Water Paths for Continuous Solar Desalination

IF 17.2 1区工程技术 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Advanced Fiber Materials Pub Date : 2024-04-09 DOI:10.1007/s42765-024-00392-x

Yuxin Yang, Daiyi Wang, Wenxi Liao, Haoyue Zeng, Yujian Wu, Luxin Li, Wei Feng, Jie Xue, Hongbin Cao, Jiaqi Chen, Yanyan Huang, Yanyan Zheng, Pan Wang, Jun Liu, Muchun Guo, Huang Zhou, Xing Fan

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Abstract

The interfacial solar evaporator is a key technology for eco-friendly desalination, playing a crucial role in alleviating the global water scarcity crisis. However, limitation of photothermal water evaporation efficiency persists due to inadequate water transfer at the water-steam interface. Herein, we present a new type of scalable and recyclable arch bridge photothermal fabric with efficient warp-direction water paths by a convenient shuttle-flying weaving technique. Compared to the previous overall layer-by-layer assembled fabric, our photothermal fabric precisely constructed effective water paths and achieved excellent water-heat distribution at the solar evaporation interface, which greatly improved the photothermal conversion efficiency and evaporation rate. By the design of the weaving process, the photothermal fabric shows a new interface contact mode of the water path fiber and polyaniline photothermal fiber. Besides, the arch-bridge type design not only minimizes heat loss area but also enhances the water evaporation area, resulting in high-efficiency all-weather available solar water evaporation. Furthermore, the results show that the temperature, evaporation rate and solar-vapor conversion efficiency of photothermal fabric can reach above 123 ℃, 2.31 kg m⁻² h⁻¹ and 99.93% under a solar illumination of 1 kW m⁻². The arch-bridge photothermal fabric with an excellent water evaporation rate has been successfully established, which provides a new paradigm for improving the sustainable seawater desalination rate.

Graphical Abstract

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具有高效经向水路的拱桥光热织物用于连续太阳能海水淡化

界面太阳能蒸发器是生态友好型海水淡化的关键技术，在缓解全球缺水危机方面发挥着至关重要的作用。然而，由于水-蒸汽界面的传水不充分，光热蒸发水的效率一直受到限制。在此，我们通过便捷的穿梭飞梭编织技术，提出了一种具有高效经向水路的可扩展、可循环的新型拱桥光热织物。与以往整体逐层组装的织物相比，我们的光热织物精确构建了有效的水路，在太阳能蒸发界面实现了良好的水热分布，大大提高了光热转换效率和蒸发率。通过编织工艺的设计，光热织物展现了水路纤维与聚苯胺光热纤维的新型界面接触模式。此外，拱桥式设计不仅最大限度地减少了热量损失面积，还增大了水蒸发面积，从而实现了全天候高效太阳能水蒸发。此外，研究结果表明，在 1 kW m-2 的太阳光照条件下，光热织物的温度、蒸发率和太阳能-水汽转换效率分别达到 123 ℃、2.31 kg m-2 h-1 和 99.93% 以上。具有优异水蒸发率的拱桥光热织物已成功建立，为提高可持续海水淡化率提供了新的范例。

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来源期刊

Advanced Fiber Materials Multiple-

CiteScore

18.70

自引率

11.20%

发文量

109

期刊介绍： Advanced Fiber Materials is a hybrid, peer-reviewed, international and interdisciplinary research journal which aims to publish the most important papers in fibers and fiber-related devices as well as their applications.Indexed by SCIE, EI, Scopus et al. Publishing on fiber or fiber-related materials, technology, engineering and application.