Photothermal properties of a nanofluid containing graphene oxide-copper nanoparticle hybrid materials prepared by using <i>Paramignya trimera</i> extract.

ABSTRACT: This study reports the green synthesis, characterization, and photothermal performance of graphene oxide-copper nanoparticle (GO-CuNP) hybrid nanofluids. The hybrid materials were fabricated using graphene oxide (GO) as a template and Paramignya trimera (P. trimera) extract as a reducing and stabilizing agent, producing uniformly distributed Cu nanoparticles (∼8.5 nm) on GO sheets. The prepared nanofluids (0.01-0.04 vol%) exhibited enhanced thermal conductivity and optical absorption compared with deionized water. The thermal conductivity increased by 4-15% in the temperature range 30-55 °C. Zeta potential analysis revealed values of 38.5, 32.6, 30.8, and 26.2 mV, indicating good colloidal stability up to 0.03 vol% and moderate stability with incipient aggregation at 0.04 vol

SUBMITTER: Van Hao N 

PROVIDER: S-EPMC12810694 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature