Impact of Spherical Gold Nanoparticles from Phyllanthus emblica (Indian Gooseberry) Fruit Extract on the Photocatalytic Reduction of Methylene Blue Dye
| Autor: | D. Jayalakshmi, Belina Xavier, Ami Ansul Shah |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Chemistry
02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Reduction (complexity) chemistry.chemical_compound Colloidal gold Phyllanthus emblica Photocatalysis 0210 nano-technology Methylene blue Nuclear chemistry |
| Zdroj: | Asian Journal of Chemistry. 31:2613-2617 |
| ISSN: | 0975-427X 0970-7077 |
| DOI: | 10.14233/ajchem.2019.22255 |
| Popis: | In present study, gold nanoparticles are synthesized using the aqueous fruit extract of Phyllanthus emblica (Indian gooseberry) via the green synthesis route. The biomolecules such as phenols, ascorbic acid, flavanols and tannins play an important role in the reduction of the metal ions as investigated by FT-IR studies. The UV-visible spectroscopy studies confirm the surface plasmon resonance peaks in the range of 532-550 nm and is characteristic of the colour change from pale yellow to pinkish-purple. The TEM analysis exhibits the spherical gold nanoparticles in the range of 10-50 nm. The zeta potential observed value is found to be -9.92 mV indicating a good stability and highly dependent on the shape and the interparticle interaction of metal nanoparticles in the medium. The particle size obtained by the dynamic light scattering method is in agreement with the TEM analysis. Gold nanoparticles act as a potential catalyst under mercury light illumination and shows 92.4 % degradation of methylene blue from the contaminated water. |
| Databáze: | OpenAIRE |
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