▎ 摘　　要

We report a facile fabrication for the synthesis of graphene based alpha-Fe2O3 nanocomposites as anode material for photoelectrochemical water splitting. The effect of introduction of graphene as a solid-state electron material has been investigated in detail by controlling the synthesis parameters. The XRD pattern of hematite alpha-Fe2O3 nanoparticles were indexed to rhombohedral structure of alpha-Fe2O3, while the TEM images illustrate the flaky structure of graphene supported by hematite nanoparticles. The rGO/-Fe2O3 nanocomposites showed enhanced photocurrent of similar to 4 mA cm(-2) at (1.23 V vs. RHE) under standard illumination conditions (AM 1.5 G 100 mW cm(-2)). The enhanced photoelectrochemical performance may be attributed to synergistic effect of graphene and -Fe2O3 by improving the charge transport properties. The optical properties were also observed to be influenced by the coupling of rGO and alpha-Fe2O3 composites as witnessed in the DRS spectra.