Journal
NANO ENERGY
Volume 87, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.nanoen.2021.106146
Keywords
Wood-based evaporator; Solar interfacial evaporation; Water purification; Thermal stabilization
Categories
Funding
- National Natural Science Foundation of China [31670555, 31901254]
- Natural Science Foundation of Jiangsu Province [BK20170925]
- JST-ERATO Yamauchi Materials Space-Tectonics Project [JPMJER200]
- ARC-Linkage [LP180100429]
- JSPS Postdoctoral Fellowship for Overseas Researchers [20F20338]
- Australian Research Council [LP180100429] Funding Source: Australian Research Council
- Grants-in-Aid for Scientific Research [20F20338] Funding Source: KAKEN
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Research focuses on designing a thermally stable wood-derived aerogel for efficient solar-driven interfacial evaporation, with excellent thermal management and evaporation efficiency. The aerogel also exhibits resistance to mildew and chemical stability, making it suitable for removing organic dyes and heavy metals in wastewater.
The wood-based solar-driven interfacial evaporators are inexpensive for generating potable water. Previous research has focused on improving the light absorption capacity of wood-based devices rather than optimizing manufacturing costs, energy consumption, and internal structure. Here, a thermally stable wood-derived aerogel (TWA) with hierarchically ordered microchannels is programmatically designed via delignification and selective thermal treatment. The structural features of the TWA facilitate efficient thermal management during the solardriven interfacial evaporation process. These features enable controlled hydrophilicity, low thermal conductivity, and good light absorption. By reducing the heat loss of the system, TWA has a high evaporation efficiency of 85.9% under 3 sun irradiation. In addition, TWA can operate in complicated water environments for long periods due to excellent mildew resistance and chemical stability. More importantly, TWA can be used to remove organic dyes and heavy metals in sewage, highlighting the significance of programmable-designed wood aerogel for the solar-driven interfacial evaporator.
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