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A robust double-network polymer evaporator for enhanced solar-driven water purification
Yuan Chen1,2, Chang Lv1, Yu-Xiang Zhao2
1School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China. wangsheng@zstu.edu.cn.
Chemical Communications (Cambridge, England)
|April 7, 2025
Summary
Researchers developed a novel polymer foam for efficient solar-driven water desalination. This material enhances photothermal conversion, improving water evaporation rates and stability for practical applications.
Area of Science:
- Materials Science
- Polymer Chemistry
- Renewable Energy
Background:
- sp2-Carbon-conjugated porous polymers (sp2C-CPPs) show potential as photothermal materials.
- Poor processability of sp2C-CPPs limits their practical application in solar energy conversion.
Purpose of the Study:
- To develop a processable photothermal material with enhanced solar-driven water evaporation capabilities.
- To improve the photothermal efficiency and stability of sp2C-CPPs for desalination.
Main Methods:
- Fabrication of a double-network cross-linked polymer foam (DN-CPF) integrating sp2C-CPPs with flexible polymer chains.
- Characterization of the photothermal efficiency and water evaporation rate under simulated solar irradiation.
- Assessment of material stability, including salt resistance.
Main Results:
- The DN-CPF achieved a high photothermal efficiency of 92.6%.
- An impressive water evaporation rate of 1.53 kg m-2 h-1 was recorded under one sun irradiation.
- The material demonstrated excellent stability and salt resistance.
Conclusions:
- The developed DN-CPF effectively addresses the processability issues of sp2C-CPPs.
- The material shows significant promise for efficient and stable solar-driven water desalination.
- This innovation offers a viable solution for sustainable water purification.
