Abstract
In this work, we describe the formation of rGO nanomaterial from GO using a simple, eco-friendly, cost-effective, and template-free modified Hummer's approach followed by thermal reduction. X-ray diffraction, Scanning electron microscopy, UV–VIS spectroscopy, photoluminescence, Fourier transform infrared, Raman technique and Thermogravimetric (TGA) analysis are used to investigate the features of the rGO nanomaterial. Structural characteristics of rGO nanomaterial revealed that they grow in a hexagonal phase and within the quantum range. Morphological studies show the production of wrinkled and smooth-like structures with nanoscale thickness. TGA demonstrated that the nanomaterial is extremely stable at elevated temperatures. The optical characteristics of the rGO quantum dots indicated that they are suited for optoelectronic devices with room-temperature photoluminescence. Photoluminescence (PL) investigation revealed that rGO absorbs ultraviolet light and emits green color. The color coordinates of nanomaterials are determined using the Comission Internationale de I'E'clairage CIE diagram, which indicates their compatibility for biological applications.
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