Nature-inspired wood-based solar evaporation system for efficient desalination and water purification

Interfacial solar evaporation technology is considered as one of the most promising green ways to solve the problems of freshwater scarcity and sewage treatment. Herein, we prepared a low-cost, easy-to-fabricate, and excellent performance polyaniline (PANI)-wood solar evaporator using a simple surfa...

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Bibliographic Details
Published in:Journal of materials science 2023-04, Vol.58 (14), p.6220-6236
Main Authors: Qu, Mengnan, Yan, Jufeng, Ge, Jianwei, Zhao, Yue, Xue, Yuyu, Liu, Xiaofeng, Liu, Hui, Yan, Min, He, Jinmei
Format: Article
Language:English
Subjects:
Aqueous solutions
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Composites & Nanocomposites
Crystallography and Scattering Methods
Deionization
Desalination
Drinking water
Efficiency
Emission standards
Evaporation rate
Evaporators
Fourier transforms
Freshwater resources
Heat conductivity
Light transmittance
Materials Science
Nanocomposites
Photothermal conversion
Polyanilines
Polymer Sciences
Reagents
Seawater
Self-assembly
Solar energy
Solid Mechanics
Water purification
Water shortages
Wood
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Summary:Interfacial solar evaporation technology is considered as one of the most promising green ways to solve the problems of freshwater scarcity and sewage treatment. Herein, we prepared a low-cost, easy-to-fabricate, and excellent performance polyaniline (PANI)-wood solar evaporator using a simple surface self-assembly technique. The evaporator achieves an evaporation rate of 1.66 kg m −2  h −1 under 1 sun and a photothermal conversion efficiency of 86.9%. In the process of seawater desalination, the purification rate of four ions in seawater reaches at least 99%. And water purified by evaporator meets the drinking water standard of the World Health Organization (WHO). In the experiment of evaporating organic dye aqueous solution, the light transmittance of the purified water is similar to that of deionized water. These performances are higher than those of most reported wood-based solar evaporators. Therefore, the efficient solar evaporation system has great potential in addressing desalination and water purification. Graphical abstract
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-023-08420-8