SnS2 and Ho-doped SnS2 thin films: Synergistic, DFT, photocatalytic, and antibacterial studies
- Authors:Imane Radja, Yasmina Khane, Marisa C. Oliveira, Elson Longo, Renan A.P. Ribeiro, Mehmit Isik, Farid Bennabi, Abdelkader Nebatti Ech-Chergui, M’hamed Guezzoul, Sanat Kumar Mukherjee, Brahim Aïssa, Bouhalouane Amrani, Mohammad Mansoob Khan
- Publication Date:January 10, 2024
- Type:Journal Article
- DOI:10.1016/j.ceramint.2024.07.150
- Publication On:Ceramics International
Abstract
This study investigates Ho-doped tin disulfide (Ho-SnS2) thin films prepared via spray coating, focusing on varying Ho doping levels (0 at. %, 2 at. %, and 4 at. %). Structural analysis through XRD and SEM showcased enhanced crystallinity and morphology in Ho-SnS2 films. Raman and XPS studies provided insight into the film’s composition and chemical states. The antibacterial properties of the films were investigated using a bacterial growth inhibition assay. The results showed significant antibacterial activity against Gram-positive and Gram-negative bacteria, highlighting the potential applications of Ho-SnS2 thin films in antibacterial coatings. Ho-SnS2 films exhibited superior photocatalytic activity and antibacterial properties compared to SnS2 films, attributed to efficient charge separation. DFT analysis proposed a mechanism for the antibacterial activity. These findings highlight the efficacy of the spray coating technique in producing Ho-SnS2 films and the potential of Ho-SnS2 films for diverse applications like photocatalysis and antibacterial coatings.