• 文献标题:   Multifunctional plasmonic Ag-Cu alloy nanoparticles immobilized on reduced graphene oxide for simultaneous solar-driven steam, wastewater purification, and electricity generation
  • 文献类型:   Article
  • 作  者:   KOSPA DA, GEBREIL A, ELHAKAM SA, AHMED AI, IBRAHIM AA
  • 作者关键词:   solar driven water evaporation, alloying, disinfection, photodegradation, electricity generation, oilresistance
  • 出版物名称:   JOURNAL OF MATERIALS RESEARCH TECHNOLOGYJMR T
  • ISSN:   2238-7854 EI 2214-0697
  • 通讯作者地址:  
  • 被引频次:   1
  • DOI:   10.1016/j.jmrt.2023.01.141 EA FEB 2023
  • 出版年:   2023

▎ 摘  要

Solar-driven water evaporation is crucial for drinkable water production using cost-effective solar energy and has recently gained more interest through the improvement of heat localization strategies. However, the original water sources may contain oil im-purities and other organic pollutants that seriously impair the evaporation process and pose environmental hazards. Here, we developed a multifunctional nanocomposite Ag, Cu-rGO for the production of clean water by simultaneous photocatalysis, oil resistance, adsorption, and water evaporation powered by the sun. The phonon-assisted relaxation process under solar irradiation was effectively accelerated by the incorporation of rGO by Ag and CuNPs alloy, which can alter the bandgap and introduce a significant number of intermediate band (IB) states. We demonstrate that by employing the Ag, Cu-rGO evapo-rator under solar light irradiation, a high-water evaporation rate of 1.89 kg m -2 h-1 with a high solar-to-heat conversion efficiency of 90.2% can be accomplished. Additionally, the membrane can concurrently purify the raw water during solar evaporation by organic dye degradation, heavy metals adsorption, oil resistance, and pathogenic bacteria disinfection. Meanwhile, the heat dissipation to the bulk water can be recovered by the conversion to electricity using a commercial TE-module which simultaneously generates voltage gen-eration of 17.3 mV with a power density of 5.72 W m-2. For solar-driven water evaporation from multiple sources, such an all-in-one multifunctional membrane is an excellent candidate.(c) 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).