Solar-driven steam evaporation technology, known for its low energy consumption and environmental friendliness, has emerged as a promising approach for seawater desalination, wastewater purification, etc. However, creating a low-cost solar evaporation system that simultaneously achieves rapid water transport, efficient light absorption, and salt tolerance remains challenging. Here, a dual-layer evaporator based on reed roots has been developed after a simple HO delignification treatment and flame treatment, which exhibited enhanced water transport performance and photothermal properties. As excepted, delignification treatment enhanced the capillary water transport ability of reed roots, which is conducive to promoting the dilution of salt in the evaporator and preventing salt deposition. The evaporator demonstrates an impressive steam generation efficiency of 83.5 % and a remarkable water evaporation rate of 1.407 kg m h under 1 sun, thanks to its well-designed structure and optimized performance. Moreover, the evaporator exhibited excellent practical performance for outdoor applications and demonstrates a remarkable capacity for sewage purification, effectively treating heavy metal ion wastewater as well as dye wastewater. As a result, the objective of our research is to explore opportunities for the implementation of deployable, cost-effective, low-carbon-footprint solar water purification systems, particularly for some impoverished regions, to ensure the provision of high-quality water.

中文翻译：

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基于芦苇根的太阳能驱动蒸发器，具有更快的毛细管水传输速率，可有效产生蒸汽

太阳能驱动的蒸汽蒸发技术以其低能耗和环境友好而闻名，已成为海水淡化、废水净化等领域的一种有前途的方法。然而，创建一种低成本的太阳能蒸发系统，同时实现快速输水、高效光吸收和耐盐性仍然具有挑战性。经过简单的 H2O 脱木质素处理和火焰处理后，开发出了基于芦苇根的双层蒸发器，该蒸发器表现出增强的水传输性能和光热性能。但脱木素处理增强了芦根毛细管水输送能力，有利于促进蒸发器内盐分的稀释，防止盐分沉积。由于其精心设计的结构和优化的性能，该蒸发器的蒸汽产生效率高达 83.5%，在 1 个太阳下的水蒸发率高达 1.407 kg·m·h。此外，该蒸发器在户外应用中表现出优异的实用性能，并表现出卓越的污水净化能力，有效处理重金属离子废水以及染料废水。因此，我们研究的目的是探索实施可部署的、具有成本效益的、低碳足迹的太阳能净水系统的机会，特别是在一些贫困地区，以确保提供高质量的水。