Exploring the Synergistic Structural and Optical Properties of Co-Precipitated BiCr₂O₄/GO Nanocomposite

Binary nanocomposite of BiCr 2 O 4 /GO synthesized by co-precipitation method where BiCr 2 O 4 was synthesized by sol-gel and GO was prepared by Hummer’s method has been reported. From XRD analysis, average crystalline size of GO, BiCr 2 O 4 and BiCr 2 O 4 /GO are 5.55 nm, 6.85 nm and 5.27 nm respectively. From SEM micrograph it is quite clear that BiCr 2 O 4 /GO nanoparticles retain their quasi spherical grains with in the nanocomposite whereas as the presence of Bi, Cr and Si were evident from EDS spectra resulting GO suppressed peak. PL spectra for binary BiCr 2 O 4 /GO nanocomposite shows the estimated band gap energy of 3.5 eV which lies in the band gap energy range of GO about 3.1–3.9 eV. Bond formation in BiCr 2 O 4 /GO nanocomposite was depicted by Raman band shift. These all results support nanocomposite based nanomaterial suitability for its application in supercapacitor based energy storage materials.