A lotus-inspired, 3D-assembled solar-powered evaporator with an excellent tri-function of desalination, wastewater purification, and electricity generation

IF 9 1区工程技术 Q1 ENGINEERING, CHEMICAL

Separation and Purification Technology Pub Date : 2025-07-25 DOI:10.1016/j.seppur.2025.134504

Yanan Mao , Siyuan Yin , Jiyuan Zhu , Lingming Kong , Bo Song

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Abstract

A lotus-inspired 3D-assembled solar evaporator with heterojunction of EDLs has been developed to achieve highly efficient freshwater and electricity generation through green and sustainable solar-driven interface evaporation technology. The 3D evaporation structure greatly increases the evaporation interface and improves environmental energy harvesting. Adopting the hydrophilic complex coating of PDA/TEOS and PPy to improve the upward water supply of the evaporation system. Both the 3D structure and the hydrophilic complex coating contribute to the improved light-harvesting capability. Suffering from the above advantages, the optimized LME evaporator achieves an evaporation rate of 2.91 kg m²h^-1 under 1 sun irradiation. By constructing different electron double layer (EDL) at the top and bottom of the 3D evaporator to form a heterojunction-inspired EDLs effect to further enhance the power generation capacity. In addition, the LME solar evaporator has superior environmental adaptability, long-term operational stability, desalination-purification performance, and economic feasibility. Overall, the work will provide new inspiration for researchers on the structure design and function optimization of the 3D high-performance solar evaporator to effectively address the freshwater shortage, energy crisis, and environmental pollution, etc.

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以莲花为灵感，3d组装的太阳能蒸发器，具有出色的海水淡化，废水净化和发电三重功能

以莲花为灵感，开发了一种具有edl异质结的3d组装太阳能蒸发器，通过绿色和可持续的太阳能驱动界面蒸发技术实现高效的淡水和发电。三维蒸发结构大大增加了蒸发界面，提高了环境能量收集。采用PDA/TEOS和PPy的亲水性络合涂层，提高蒸发系统的向上供水能力。三维结构和亲水性络合物涂层都有助于提高光捕获能力。综上所述，优化后的LME蒸发器在1次太阳照射下的蒸发速率为2.91 kg m2h-1。通过在三维蒸发器的顶部和底部构建不同的电子双层（EDL），形成异质结激发的EDL效应，进一步提高发电能力。此外，LME太阳能蒸发器具有优越的环境适应性、长期运行稳定性、脱盐净化性能和经济可行性。总体而言，该工作将为研究人员在三维高性能太阳能蒸发器的结构设计和功能优化方面提供新的启发，以有效解决淡水短缺、能源危机和环境污染等问题。

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来源期刊

Separation and Purification Technology 工程技术-工程：化工

CiteScore

14.00

自引率

12.80%

发文量

2347

审稿时长

43 days

期刊介绍： Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.