Construction of novel g-CN coupled efficient BiO nanoparticles for improved Z-scheme photocatalytic removal of environmental wastewater contaminant: Insight mechanism.

Recently, the major environmental pollution produced by the release of wastewater in liquid type is one of the most extensive forms of foremost pollution in water ecosystems. In this article, the BiO/g-CN nanocomposite with a direct Z-scheme was effectively obtained by a facile hydrothermal system. The crystal structures, surface morphology, chemical composition, and the optical belongings of the as-obtained composite catalysts were examined by Power XRD, FT-IR spectra, High-resolution XPS spectra, FE-SEM images with EDX spectra, High-resolution TEM images, UV-Vis DRS, and PL spectra respectively. Furthermore, the photocatalytic performance was assessed by the degradation of aqueous Rhodamine B (Rh B) dye under visible-light exposure. The BiO/g-CN composite photocatalysts (PCs) showed the maximum photo-degradation efficiency through a rate constant value of 0.0149 min, which is 4.9 and 5.3 folds superior to BiO, and GCN, respectively. The better GBO2 nanocomposite PCs showed a superior photocatalytic degradation performance (>82%) of aqueous Rh B dye after five successive recycles. Moreover, based on these outcomes of the radical scavenging test, a direct and effective Z-scheme photocatalytic charger transfer mechanism was also projected. Finally, the reusability of the as-obtained BiO/g-CN nanocomposite has better stability and reusability, which was a favourable applicant for wastewater handling.