材料科学
化学工程
超亲水性
光热治疗
海水淡化
光活性层
吸收(声学)
聚合物
膜
润湿
复合材料
纳米技术
聚合物太阳能电池
化学
生物化学
工程类
作者
Jingxian He,Fang Liu,Chaohu Xiao,Hanxue Sun,Jiyan Li,Zhaoqi Zhu,Weidong Liang
出处
期刊:Langmuir
[American Chemical Society]
日期:2021-10-11
卷期号:37 (42): 12397-12408
被引量:21
标识
DOI:10.1021/acs.langmuir.1c02013
摘要
Solar steam generation has been considered as one of the most promising strategies for production of fresh water using renewable solar energy. Herein, we prepared a polymer porous foam (HPSS) by a facile hydrothermal method. The HPSS presents a superhydrophilic wettability, an interpenetrating macroporous structure, and low thermal conductivity, which can well satisfy the criteria as an ideal candidate for photothermal materials. The HPSS/Fe3O4/PPy (polypyrrole) evaporator, of which a Fe3O4/PPy binary optical system served as a light absorption layer and HPSS was used as a porous substrate, was constructed through in situ growth of Fe3O4 particles followed by interfacial polymerization of PPy on the surface of HPSS. HPSS/Fe3O4/PPy shows an excellent light absorption capacity (92%) and photothermal conversion performance, with the solar energy conversion efficiency reaching up to 94.7% under 1 sun irradiation, which is much higher than that of HPSS/PPy (84.8%) composed of a unitary PPy light absorption layer. Interestingly, the presence of Fe3O4 particles could make directional migration in a magnetic field possible, thus facilitating its recovery as a self-floating solar generator in an open water area. Moreover, the HPSS/Fe3O4/PPy evaporator displays outstanding salt resistance properties and stability in various saline solutions, thus having great potential in practical desalination.
科研通智能强力驱动
Strongly Powered by AbleSci AI