TIAN Jie^1，2, SUN Yueling², WU Wei³

(1.School of Chemistry and Chemical Engineering, Yangzhou university, Yangzhou 225009, China;2.School of Chemical Engineering, Yangzhou Polytechnic Institute, Yangzhou 225000, China;3.School of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China)

Abstract: 3D graphene-reduced graphene oxide-carbon foam(G-RGO@CF)was prepared by impregnation and thermal annealing using melamine foam(MF)as 3D 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 250～2 500 nm), and good hydrophilicity.The evaporation rate and energy conversion efficiency of G-RGO@CF under 1 kW/m² are 1.54 kg/(m²·h)and 96.4%, respectively.The water evaporation system retaines high evaporation rate and energy conversion efficiency after 10 cycles.

Keywords: graphene-graphene oxide composite nanosheets；solar steam generation；interfacial evaporation

中图分类号：TQ127                              文献标志码：A

文章编号：1008-5548(2022)03-0116-08

DOI:10.13732/j.issn.1008-5548.2022.03.014

收稿日期： 2021-11-23， 修回日期：2022-03-27，在线出版时间：2022-04-21。

基金项目：国家自然科学基金项目，编号B061203。

第一作者简介：田杰(1992—), 女, 讲师, 博士, 研究方向为功能性纳米材料。E-mail: 646300529@qq.com。

通信作者简介：毋伟(1966—), 男, 教授, 博士, 研究方向为功能性纳米材料的制备与应用研究。E-mail: wuwei@mail.buct.edu.cn。