Fabrication and Characterization of Z-Scheme Bi2O3/MoO3 Nanocomposite for Electrocatalytic Activity for Degradation of Mixed Organic Dyes

In this study, one-pot sol-gel/auto-combustion method was applied to fabricate Bi2O3/MoO3 nanocomposites as a direct Z-Scheme electrocatalyst. The manufactured composite’s structural, surface, and morphological characteristics were comprehensively investigated by XRD, FTIR, SEM/EDX, HR-TEM analyses, and UV–Visible spectroscopy. Results demonstrated that Z-scheme BMO-5 NCs’ low band gap energy is found at 3.027 eV, with a high electrocatalytic activity. The electrocatalytic performance of BMO electrocatalyst was investigated via degradation of Methyl blue (MB), Brilliant green (BG), and mixed dyes under current voltage irradiation. Meanwhile, degradation efficiency of MB and BG dyes with BMO-5 NCs demonstrated around 96.16 ( • OH) and superoxide radical (O 2•− ) significantly affect electrocatalytic degradation of BG dye. Bi2O3/MoO3 is a potential material for environmental remediation and wastewater treatment, due to its dual functionality.