Harnessing the power of S/N-doped NiO nanoparticles through bandgap tuning to achieve enhanced photocatalytic and antibacterial performances.

ABSTRACT: Nickel oxide (NiO) is a promising photocatalyst owing to its stability, cost-effectiveness, and eco-friendliness. However, its wide band gap and rapid electron-hole recombination limit its effectiveness under visible light. In this study, we introduce a novel approach by co-doping NiO nanoparticles with sulfur and nitrogen (S/N-NiO-NPs) to overcome these limitations. Using a co-precipitation method, we synthesized and thoroughly characterized the materials, confirming successful doping and significant modifications in their structural and optical properties. Notably, S/N co-doping reduced the band gap from 3.75 to 2.50 eV, enhanced charge separation, and improved visible-light absorption. Under optimal conditions (pH 10), only 40 mg of S/N-NiO-NPs achieved 98.9% degradation of methylene bl

SUBMITTER: Tamesgen T 

PROVIDER: S-EPMC12314104 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature