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Super-Performance Photothermal Conversion of 3D Macrostructure Graphene-CuFeSe2 Aerogel Contributes to Durable and Fast Clean-up of Highly Viscous Crude Oil in Seawater
Nano Energy ( IF 17.6 ) Pub Date : 2020-01-18 , DOI: 10.1016/j.nanoen.2020.104511
Anqi Sun , Xuan Hou , Xiangang Hu

Collecting, cleaning and recycling oil from oil spills, especially highly viscous crude oil, are global challenges. Inspired by the solar energy-motivated viscosity-break, a 3D macrostructure CuFeSe2-loaded graphene aerogel (GA-CuFeSe2) is synthesized and exhibits a superior photothermal conversion capacity compared with other materials. GA-CuFeSe2 presents a strong optical absorbance (e.g. 24.94 Lg-1 cm-1 under 808 nm irradiation) and a high photothermal conversion efficiency (e.g. 79.62% under 532 nm). GA-CuFeSe2 heats the crude oil to approximately 100 °C within 10 s, and the absorption capacity is 18.63 g/g. The saturation diffusion time of crude oil into GA-CuFeSe2 is less than 300 s. The 3D macrostructures supported by graphene provide a versatile pore structure for the quick diffusion of high-viscosity fluids and a high corrosion resistance. The high-performance photothermal conversion and oil sorption, driven by solar power, highlight the practical use of this material for oil spills.



中文翻译:

3D宏观结构石墨烯-CuFeSe 2气凝胶的超高性能光热转化有助于持久和快速清除海水中的高粘度原油

从漏油特别是高粘度原油中收集,清洁和回收石油是全球性挑战。受太阳能驱动的粘度折断的启发,合成了3D宏观结构的负载CuFeSe 2的石墨烯气凝胶(GA-CuFeSe 2),与其他材料相比,其具有出色的光热转化能力。GA-CuFeSe 2具有强的光吸收率(例如在808 nm辐射下为24.94 Lg -1 cm -1)和高的光热转换效率(例如在532 nm下为79.62%)。GA-CuFeSe 2在10 s内将原油加热到大约100°C,吸收能力为18.63 g / g。原油在GA-CuFeSe 2中的饱和扩散时间小于300秒。石墨烯支撑的3D宏观结构提供了一种通用的孔结构,用于高粘度流体的快速扩散和高耐腐蚀性。由太阳能驱动的高性能光热转换和吸油功能突出了该材料在溢油中的实际应用。

更新日期:2020-01-21
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