光热治疗
涂层
材料科学
水溶液
蒸发
纳米技术
化学工程
聚合
吸水率
水蒸气
海水
聚合物
复合材料
化学
有机化学
工程类
地质学
物理
海洋学
热力学
作者
Yousen Xu,Biao Tang,Fei Xiong,Tongye Ma,Dehai Yu,Guofu Zhou,Zhen Zhang
标识
DOI:10.1021/acs.iecr.2c03477
摘要
A facile approach to fabricate sustainable and large-scale polydopamine (PDA) and silver nanoparticle (AgNP)-coated cotton fabrics (P-Ag-P@CFs) as photothermal solar evaporators for efficient interfacial solar steam generation was proposed. The P-Ag-P@CFs were facilely fabricated in a large scale (2.3 m × 1.0 m) by coating PDA and AgNPs on cheap and green cotton fabrics via the self-polymerization of dopamine through a dip-coating combined with oven drying method and in situ reduction of Ag+ by dopamine, respectively. Thanks to the synergistic effect of PDA and AgNPs, the P-Ag-P@CFs show remarkable light absorption and solar-to-vapor efficiency (over 90% for deionized water under 1-sun irradiation), resulting in a high evaporation rate of 1.378 kg m–2 h–1. Moreover, the P-Ag-P@CFs display an excellent purification efficiency and degree for several kinds of aqueous solutions, such as seawater, simulated sewage, and industrial wastewater. The desalinated water is compliant with the standards of drinking water.
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