蒸发器
气凝胶
蒸发
海水淡化
材料科学
太阳能淡化
海水
化学工程
膜
纳米技术
化学
机械工程
热交换器
工程类
热力学
生物化学
物理
海洋学
地质学
作者
Xi Hu,Yutong Song,Yundi Lv,Beibei Wang,Jinbo Bai,Shenghua Ma
出处
期刊:Desalination
[Elsevier]
日期:2024-03-01
卷期号:573: 117141-117141
被引量:4
标识
DOI:10.1016/j.desal.2023.117141
摘要
Seawater desalination with solar-driven interfacial evaporators has emerged as a promising solution to alleviate global water scarcity. However, conventional two-dimensional (2D) planar evaporators have high reflectivity, which poses a challenge in achieving efficient light absorption. Herein, a sandwich-structured solar-driven interfacial evaporator (SSIE) assembled with three-dimensional (3D) cellulose aerogel membranes (modified with TiN nanoparticles) and an air-laid paper was proposed, which is significantly different from the previously reported 2D membrane-based evaporators. Cellulose aerogel membranes have excellent integrated properties, including extremely high flexibility, allowing for multiple folds, and a 3D porous structure that enables multiple light absorptions. Benefiting from special structural design, SSIE achieves an outstanding evaporation rate of 2.20 kg m−2 h−1 and an energy efficiency of 83.30%. Moreover, SSIE maintains a stable evaporation rate throughout a 10 h saltwater evaporation process. It also demonstrates excellent performance in seawater and simulated wastewater purification. Furthermore, SSIE exhibits a significant purification effect for dye wastewater, such as Rhodamine B (RhB). This study provides valuable insights into rational structural design for solar evaporators, as well as holding tremendous potential for carrying out seawater desalination in limited spaces.
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