Efficient Dye Degradation and Antibacterial Activity of Carbon Dots/Chitosan-Doped LaO Nanorods: In Silico Molecular Docking Analysis.

This work demonstrates the degradation of toxic RhB (rhodamine B) dye from polluted water in various pH environments. It assesses the antibacterial action of CDs (carbon dots)/CS (chitosan)-doped LaO (lanthanum oxide) NRs (nanorods). CS and CDs have been introduced as dopants to modify the characteristics of LaO to achieve efficient outcomes. The influence of doping on the structural, morphological, optical, and elemental properties of synthesized LaO NRs was investigated through a number of analytical techniques. The structural analysis of XRD revealed a hexagonal phase. The rod-like structure of pure LaO and reduction in the size of NRs upon doping were exhibited by TEM micrographs. From UV-vis spectroscopy, increased absorption upon doping and introduction of redshift that led to reduced bandgap energy were observed. The FTIR spectra indicate the presence of functional groups of pure and integrated samples. The catalytic activity of specimens in basic medium toward dye showed excellent results (94.57%). The inhibition zone of diameter 4.15 mm was evaluated by 6 mL of CDs/CS-doped LaO NRs against once the surface area increased by dopants. In silico experiments were performed for enoyl-[acyl-carrier-protein] reductase (FabI) and DNA gyrase enzymes to assess the potency of CS-doped LaO and CDs/CS-doped LaO as their inhibitors and to justify their possible mechanism of action.