Abstract
In this work, we synthesized the undoped and neodymium-doped TiO2 nanoparticles (Nd@TiO2) with various dopant concentrations using the facile sol–gel method. The PXRD results have shown that the synthesized NPs are tetragonal crystal structures, exhibiting an anatase phase. The direct bandgap values of undoped and Nd@TiO2 NPs vary from 3.19 eV to 3.30 eV, as determined from the Tauc plot. Additionally, HR-SEM and TEM have examined surface morphology, particle size, and microstructures of as-synthesized Nd@TiO2 NPs. Moreover, a sample of 5 mol.% Nd@TiO2 has shown enhanced photocatalytic activity than that of bare TiO2 NPs with the reactive black-5 (RB5) under UV light. Further, the synthesized undoped and Nd@TiO2 NPs have been incorporated with the bacteria of E. coli and B. subtilis through flow cytometry, where the 5 mol.% Nd@TiO2 NP has shown a high percentage of cell viability.
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