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Fabrication of Silver-Decorated Graphene Oxide Nanohybrids via Pulsed Laser Ablation with Excellent Antimicrobial and Optical Limiting Performance
| Content Provider | MDPI |
|---|---|
| Author | Nancy, Parvathy Jose, Jiya Joy, Nithin Valluvadasan, Sivakumaran Philip, Reji Antoine, Rodolphe Thomas, Sabu Kalarikkal, Nandakumar |
| Copyright Year | 2021 |
| Description | The demand for metallic nanoparticle ornamented nanohybrid materials of graphene oxide (GO) finds copious recognition by virtue of its advanced high-tech applications. Far apart from the long-established synthesis protocols, a novel laser-induced generation of silver nanoparticles (Ag NPs) that are anchored onto the GO layers by a single-step green method named pulsed laser ablation has been exemplified in this work. The second and third harmonic wavelengths (532 nm and 355 nm) of an Nd:YAG pulsed laser is used for the production of Ag NPs from a bulk solid silver target ablated in an aqueous solution of GO to fabricate colloidal Ag-GO nanohybrid materials. UV-Vis absorption spectroscopy, Raman spectroscopy, and TEM validate the optical, structural, and morphological features of the hybrid nanomaterials. The results revealed that the laser-assisted in-situ deposition of Ag NPs on the few-layered GO surface improved its antibacterial properties, in which the hybrid nanostructure synthesized at a longer wavelength exhibited higher antibacterial action resistance to Escherichia coli (E. coli) than Staphylococcus aureus (S. aureus) bacteria. Moreover, nonlinear optical absorption (NLA) of Ag-GO nanohybrid was measured using the open aperture Z-scan technique. The Z-scan results signify the NLA properties of the Ag-GO hybrid material and have a large decline in transmittance of more than 60%, which can be employed as a promising optical limiting (OL) material. |
| Starting Page | 880 |
| e-ISSN | 20794991 |
| DOI | 10.3390/nano11040880 |
| Journal | Nanomaterials |
| Issue Number | 4 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-03-30 |
| Access Restriction | Open |
| Subject Keyword | Nanomaterials Spectroscopy Pulsed Laser Ablation Silver Nanoparticles Graphene Oxide Ag-go Nanohybrid Material Antimicrobial Activity Optical Limiting |
| Content Type | Text |
| Resource Type | Article |
