▎ 摘　　要

Amine-functionalized carbon nanoparticles (NH2-CNPs) were synthesized by one-step hydrothermal reaction using the polyethylenimine (PEI) polymer as precursor. CNPs which present an intense photoluminescence under UV light (300-400 nm), were dispersed in graphene oxide (GO), generating a novel complex carbon-based material. The structure of the nanocomposite and its physiochemical properties were investigated using various analytical techniques. X-ray photoelectron spectroscopy indicated the presence of C-N bonds and -NH2 groups attesting the successful incorporation of the functionalized carbon nanoparticles into the graphene oxide nanosheets. Transmission electron microscopy revealed the homogeneous dispersion of NH2-CNPs, which their size ranges between 10 and 20 nm, in GO sheets. (C) 2019 Elsevier B.V. All rights reserved.