Novel exfoliated graphitic-C3N4 hybridised ZnBi2O4 (g-C3N4/ZnBi2O4) nanorods for catalytic reduction of 4-Nitrophenol and its antibacterial activity

Metal-free Graphitic carbon nitride (g-C3N4) nanoparticle was synthesized by an ultrasound-assisted chemical exfoliation method and g-C3N4/ZnBi2O4 nanorods were prepared by the cost-effective hydrothermal technique. As-synthesized nanoparticles were characterized using XRD, FESEM, HRTEM, EDX, UV, PL, BET and XPS. The photocatalytic activity of the g-C3N4 /ZnBi2O4 nanocomposite was investigated by treating 4-Nitrophenol at different pH conditions and maximum reduction of 79 % was observed under visible light irradiation. Antibacterial activity of the g-C3N4/ZnBi2O4 nanoparticles were evaluated by disk diffusion method against E.coli and S.aures. Theg-C3N4/ZnBi2O4 nanocomposite showed better antibacterial activity towards G(-) E.coli. With the effect of ZnBi2O4 doping on to the g-C(3)N(4 )host structure, the photocatalytic and antimicrobial efficiency has been enhanced.