Volume 11 Issue 4 ( December 2024)

The 100 mesh and 400 mesh GO materials were synthesized from coconut shell waste-based graphite using the modified Hummer's method. These GO materials were then subjected to a calcination process at 950°C, during which they were reduced to reduced graphene oxide (rGO). The rGO was subsequently composited with Nd₂O₃ using a solid-state reaction method to obtain rGO-100 mesh/Nd₂O₃ and rGO-400 mesh/Nd₂O₃ materials. rGO-100 mesh/Nd₂O₃ and rGO-400 mesh/Nd₂O₃ were characterized using XRD, SEM-EDX, and FTIR. XRD analysis of rGO-100 mesh/Nd₂O₃ and rGO-400 mesh/Nd₂O₃ revealed a crystalline structure, with diffraction peaks corresponding to the Nd₂O₃ phase in the rGO/Nd₂O₃. FTIR spectra confirmed the presence of oxygen-containing functional groups, and the emergence of (Nd-O) groups in the rGO/Nd₂O₃, indicating the formation of the rGO/Nd₂O₃ composite. The surface morphology of rGO/Nd₂O₃ obtained from SEM characterization showed that Nd₂O₃ particles with varying particle sizes dominated the rGO/Nd₂O₃.

Keywords: Coconut Shell, Graphite, Graphene Oxide, Nd₂O₃, Solid-State Reaction