Differential role of PVP on the synthesis of plasmonic gold nanostructures and their catalytic and SERS properties
| Autor: | Abhitosh Kedia, Manoj Verma, P. Senthil Kumar, M. Boazbou Newmai |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Materials science Nanostructure General Chemical Engineering Nanoparticle Nanotechnology 02 engineering and technology General Chemistry Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences symbols.namesake chemistry.chemical_compound chemistry symbols Molecule Crystal violet Fourier transform infrared spectroscopy 0210 nano-technology Raman scattering Plasmon |
| Zdroj: | RSC Advances. 6:80342-80353 |
| ISSN: | 2046-2069 |
| DOI: | 10.1039/c6ra18345j |
| Popis: | We have systematically utilized the simple yet uncommon XRD measurements together with FTIR data for not only quantifying the phase purity of as-synthesized Au nanoparticles, but also for meticulously interpreting the differential role of PVP in conjunction with its halide modified counterpart in the in situ fine-tuning of the nanoparticle growth. We thereby illustrate the robustness of the present synthetic protocol, further substantiating our relentless quest in achieving size/shape tunable metal nanostructures with high precision/yield by solely utilizing the full potential of the versatile polymer, polyvinyl pyrrolidone (PVP). Sincere efforts were undertaken in corroborating the optical plasmonic signatures of the different as-prepared Au nanostructures with the corresponding TEM measurements. Further, the comparative catalytic (4-nitroaniline to para-phenylenediamine) as well as surface enhanced raman scattering (of crystal violet dye molecules) investigations distinctly demonstrate a constructive structure–property correlation among the different Au nanostructures stabilized by the same polymer, the varied surface conformations of which solely dictate the physico-chemical properties in an illustrious manner, thereby establishing a new paradigm for better quantification of complex metal nanoarchitectures in general. |
| Databáze: | OpenAIRE |
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