Synthesis of platinum decorated copper oxide doped layer graphite carbon nitrite: An efficient photocatalyst for disintegration of bacteria and decomposition of dye

Platinum decorated copper oxide doped layer graphite carbon nitrite (Pt/CuO@g-C₃N₄) was synthesized by green hydrothermal method. Amylopectin was employed as a source of reduction and stabilization. Aforementioned nanomaterial is made up of a layer graphite carbon nitrite nanosheet with CuO nanofibers and Pt embedded in a cluster of nanofibers. Methylene blue (MB) degradation, free radical stabilization, and photo inactivation of bacteria were all targets for the synthesized photocatalyst. For instance, the developed composites exhibited the remarkable photocatalytic activity to degrade 90 % MB in about 20 min, under visible light irradiation. Moreover, the synthesized nanomaterials were also tested against bacteria Staphylococcus aureus and Escherichia coli (S. aureus & E. coli) both in the presence and absence of visible light irradiation. The light-treated platinum adorned copper oxide doped layer graphite carbon nitrite has inhibitory diameter 13 and 18 mm for E. coli and S. aureus respectively though in dark was 7 and 10 mm respectively. The effects of various factors on the photoinhibition potency of the said nanomaterial were also investigated. Furthermore, the nanomaterial exhibits a high resistance to 2,2-diphenyl-1-picrylhydrazyl (DPPH) stabilization.