Fabrication of rGO/MoSe₂ nanocomposites for enhanced photothermal performance

چکیده مقاله

The photothermal effect, defined as the conversion of absorbed light into thermal energy, has gained considerable attention owing to its fundamental importance and wide range of applications. In this work, rGO/MoSe₂ nanocomposites were prepared by a solvothermal method. The prepared rGO/MoSe₂ nanocomposites were characterized using XRD, zeta potential, TEM, FESEM, EDS, elemental mapping, Raman, and FT-IR analysis. The XRD analysis results confirmed that the prepared rGO/MoSe₂ nanocomposites exhibited a hexagonal crystalline structure. The Raman analysis confirmed the reduction of graphene oxide nanosheets during the synthesis process. The electrochemical properties of rGO/MoSe₂ nanocomposites were studied by ECSA analysis, and the double-layer capacitance (C_dl) of rGO/MoSe₂ nanocomposites was obtained as 3.8 mF/cm². The photothermal results showed that rGO/MoSe₂ nanocomposites had an excellent photothermal effect, and the temperature of the sample increased from 20 °C to 43.2 °C (ΔT = 23.2 °C). The photothermal efficiency of rGO/MoSe₂ nanocomposites was obtained at about 37.9%. The results showed that rGO/MoSe₂ concentration had an effective role in the photothermal effect, and rGO/MoSe₂ nanocomposites had high photostability after 6 cycles. Based on the experimental results, rGO/MoSe₂ nanocomposites have high potential to be used in photothermal-related applications. Elsevier Ltd and Techna Group S.r.l.