Integrating nitrogen-doped graphitic carbon with Au nanoparticles for excellent solar energy absorption properties

A novel excellent carbon-H2O nanofluid, nitrogen-doped graphitic carbon (ZNG), has been discovered and prepared by using a facile metal-organic frameworks (MOFs) derived synthesis method. The photothermal conversion tests indicate that ZNG shows better photo-thermal performance and more awesome dispersion stability in water than conventional carbon nanofluids such as graphene and nitrogen-doped carbon nanotubes. The excellent photo-thermal conversion efficiency is realized by integrating ZNG with Au nanoparticles.223