Tailoring of Polypyrrole Wrapped Cotton Fiber Sponge for Simultaneous Solar Steam and Solar Thermoelectric Generation

被引:0
|
作者
Chen, Tingjie [1 ,2 ]
Tang, Yuhan [2 ]
Song, Na [2 ]
Lin, Zhaoxing [2 ]
Xu, Lihong [2 ]
Peng, Xiangfang [2 ]
Chen, Xin [3 ]
He, Minghui [1 ]
机构
[1] South China Univ Technol, Sch Light Ind & Engn, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China
[2] Fujian Univ Technol, Coll Mat Sci & Engn, Key Lab Polymer Mat & Prod Univ Fujian, Fuzhou 350118, Fujian, Peoples R China
[3] Foshan Rossum Robot Co Ltd, Foshan 528000, Guangdong, Peoples R China
来源
ADVANCED SUSTAINABLE SYSTEMS | 2025年 / 9卷 / 01期
基金
中国国家自然科学基金;
关键词
cotton fiber sponge; cotton quilt; polypyrrole; solar steam generation; solar thermoelectric generation; DRIVEN; CONVERSION; BIOMASS;
D O I
10.1002/adsu.202400618
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Solar steam generation (SSG) using floatable evaporators to absorb solar energy and generate heat at the water-air interface has attracted increasing interest in achieving water purification and desalination. Using biodegradable and porous biomass materials as evaporators to fabricate high-performance SSG devices is a promising route, but the poor efficiency and fussy and energy-intensive manufacturing process for biomass material-based evaporators will restrict their practical application. Here, an old commercial cotton quilt is used to prepare porous cotton fiber sponges (CFS) via a simple and scalable mechanical foaming strategy. After being decorated by the polypyrrole (PPy), the CFS@PPy sponge with a hierarchical porous structure shows broadband light absorption capacity, good hydrophilicity, and excellent photothermal capacity. The obtained sponge can be directly used as an evaporator floating on the seawater and shows a high steam-generation efficiency of 85.07% under 1 sun irradiation. Additionally, it can be used as a photothermal material to construct a solar thermoelectric generation (STG) device and achieve an enhanced open-circuit voltage (Vout) of 0.4 V and output current (Iout) of approximate to 59.6 mA under 5 sun irradiations. With the help of a boost converter, the power generation from the STG device can continuously charge the electric bulb and wristband. Old commercial cotton quilt is used to prepare porous cotton fiber sponges via a simple and scalable mechanical foaming strategy. After decorated by the polypyrrole, the sponges with a hierarchically porous structure, good hydrophilicity, and excellent photothermal capacity can be directly used as an evaporator floating on seawater to generate water vapor. They can also be used as solar thermal power generation devices to generate the electrical power for continuously charging the electric bulb and wristband. image
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页数:10
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