3D石墨烯的简易制备及其在太阳能界面蒸发中的应用  

Simple preparation of 3D graphene and its application in solar interface evaporation

作　　者：田杰 孙岳玲[2] 毋伟[3] TIAN Jie;SUN Yueling;WU Wei(School of Chemistry and Chemical Engineering,Yangzhou university,Yangzhou 225009,China;School of Chemical Engineering,Yangzhou Polytechnic Institute,Yangzhou 225000,China;School of Chemical Engineering,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]扬州大学化学化工学院,江苏扬州225009 [2]扬州工业职业技术学院化学工程学院,江苏扬州225000 [3]北京化工大学化学工程学院,北京100029

出　　处：《中国粉体技术》2022年第3期116-123,共8页China Powder Science and Technology

基　　金：国家自然科学基金项目,编号B061203。

摘　　要：以三聚氰胺泡沫(MF)为3D载体,石墨烯-氧化石墨烯(G-GO)复合纳米片为前驱体,采用浸渍法和热退火法制备3D石墨烯-还原氧化石墨烯-碳泡沫(G-RGO@CF)。采用扫面电子显微镜、紫外-可见-近红外光谱仪等对G-RGO@CF进行形貌、结构进行表征。结果表明:G-RGO@CF展现出丰富的孔结构(孔隙率高达96.1%),高且宽的吸收率(96.6%,其波长为250~2500 nm)和亲水性;在1 kW/m^(2)太阳光强照射下,G-RGO@CF的蒸发速率和能量转换效率分别为1.54 kg/(m^(2)·h)和96.4%;在经历10次循环后,仍保持较高的蒸发速率和能量转换效率。3 D graphene-reduced graphene oxide-carbon foam(G-RGO@CF)was prepared by impregnation and thermal annealing using melamine foam(MF)as 3 D carrier and graphene-graphene oxide(G-GO)composite nanosheets as precursors.The morphology and structure of the materials were characterized by scanning electron microscope(SEM)and UV-vis-NIR spectrometer.The results show that G-RGO@CF showes rich pore structure(porosity 96.1%),high and broadband light absorption(96.6%,wavelength 250~2500 nm),and good hydrophilicity.The evaporation rate and energy conversion efficiency of G-RGO@CF under 1 kW/m^(2) are 1.54 kg/(m^(2)·h)and 96.4%,respectively.The water evaporation system retaines high evaporation rate and energy conversion efficiency after 10 cycles.

关 键 词：石墨烯-氧化石墨烯复合纳米片 太阳能水蒸发 界面蒸发 

分 类 号：TQ127[化学工程—无机化工]