Double-layer cellulose hydrogel solar steam generation for high-efficiency desalination

•A novel double-layer cellulose hydrogel was prepared as solar steam generation.•The average evaporation rate and steam evaporation efficiency were investigated.•Long-time durability and antifouling property were verified by the durability test.•The outdoor steam evaporation efficiency and desalinat...

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Veröffentlicht in:Carbohydrate polymers 2020-09, Vol.243, p.116480-116480, Article 116480
Hauptverfasser: Hu, Na, Xu, Yongjian, Liu, Zetan, Liu, Min, Shao, Xinyi, Wang, Jian
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container_end_page 116480
container_issue
container_start_page 116480
container_title Carbohydrate polymers
container_volume 243
creator Hu, Na
Xu, Yongjian
Liu, Zetan
Liu, Min
Shao, Xinyi
Wang, Jian
description •A novel double-layer cellulose hydrogel was prepared as solar steam generation.•The average evaporation rate and steam evaporation efficiency were investigated.•Long-time durability and antifouling property were verified by the durability test.•The outdoor steam evaporation efficiency and desalination performance were studied. Solar steam generation is one of the most promising technologies for desalination. In order to further promote the development of solar steam generation, a double-layer cellulose hydrogel (DCH) was designed and used as solar steam generation for seawater desalination. Under one sun illumination intensity (1 kW·m−2), the average evaporation rate and the steam evaporation efficiency reaches 1.582 kg·m−2 h-1 and 91.4 %, respectively. The durability test was performed to verify the long-time durability and antifouling property. Outdoor experiment was carried out to prove the high steam evaporation efficiency and desalination performance of DCH. This paves a way for the cellulose-based hydrogel as a biodegradable, low-cost and promising solar steam generation.
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subjects Cellulose
Desalination
Double-layer cellulose hydrogel
High-efficiency evaporation
Hydrogels
Solar Energy
Solar steam generation
Steam
Water Purification
title Double-layer cellulose hydrogel solar steam generation for high-efficiency desalination
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