Abstract
Polyvinylpyrrolidone(PVP) capped MWCNTs/Zn1-xLaxO (x = 0.1–0.0001) nano-composites were successfully prepared using chemical co-precipitation method. The synthesized materials were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive X-ray fluorescence (EDXRF), laser Raman, Brunauer–Emmett–Teller (BET) surface area analysis and Fourier transform infrared (FTIR) measurements. Photocatalytic measurements clearly showed maximum degradation (k = 0.018 min−1) of MB dye solution by MWCNTs/Zn0.99La0.01O nano-composite with optimum dopant optimum concentration of La3+ ions corresponding to × = 0.01, and minimum degradation (k = 0.009 min−1) by MWCNTs/ZnO after 80 min UV-light exposure. A high antibacterial performance with inhibition zone diameters ∼10–16 mm against a gram positive (S. aureus) and ∼20–28 mm against a gram negative (E. Coli) bacteria has been reported for MWCNTs/Zn0.90La0.10O nano-composite incubated in dark. Furthermore, in-silico molecular docking analysis of the β-lactamase (PDB 1MWT) and DNA Gyrase B (6F68) proteins confirmed the potentiality of synthesized materials for antibacterial applications.
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