• 文献标题:   3D Graphene Composite Foams for Efficient and Stable Solar Desalination of High-Salinity Brine
  • 文献类型:   Article, Early Access
  • 作  者:   HE YJ, ZHAO DM, WANG H, GONG XL, DING MC, DUAN ZY, LIN TH, WEI R, LIU JQ, LI CW
  • 作者关键词:   carbon nanotube, graphene foam, seawater desalination, solardriven interfacial evaporation, 3d evaporator
  • 出版物名称:   SOLAR RRL
  • ISSN:   2367-198X
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1002/solr.202300313 EA MAY 2023
  • 出版年:   2023

▎ 摘  要

Solar-driven interfacial evaporation (SIE) is a promising desalination technology that utilizes solar energy and seawater. However, most SIE systems are limited by high cost, complex fabrication, and low salt tolerance. Herein, a simple method is presented for preparing a 3D graphene/carbon nanotubes/polypyrrole foam (GCPF) evaporator that exhibits high evaporation efficiency, excellent mechanical performance, and stable solar desalination of high-salinity brine. The excellent processability of melamine foam enables the easy preparation of the 3D GCPF, which exhibits an enhanced evaporation rate of 4.012 kg m(-2) h(-1) and a photothermal conversion efficiency of 97.8% under one sun irradiation. Compared with the 2D sample, the GCPF-3 evaporator utilizes solar energy more efficiently and maintains higher evaporation performance even when the light angle changes. Moreover, the 3D GCPF shows remarkable salt tolerance and durability, achieving a stable evaporation rate of 4.005 kg m(-2) h(-1) for 30 h with a salinity of 25 wt%, which is the best-reported result among solar desalination systems. This work provides new insights into the design of 3D graphene composite foams and demonstrates their potential applications in continuous solar desalination.