Green one-pot synthesis of gold nanoparticles using Sansevieria roxburghiana leaf extract for the catalytic degradation of toxic organic pollutants
| Autor: | Moumita Mondal, Vadivel Meyappan, Natarajan Sakthivel, Indramani Kumar |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Phenol red
Mechanical Engineering 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Congo red chemistry.chemical_compound Dynamic light scattering chemistry Mechanics of Materials Colloidal gold Chloroauric acid Bromothymol blue General Materials Science Fourier transform infrared spectroscopy 0210 nano-technology Methylene blue Nuclear chemistry |
| Zdroj: | Materials Research Bulletin. 117:18-27 |
| ISSN: | 0025-5408 |
| DOI: | 10.1016/j.materresbull.2019.04.029 |
| Popis: | Biogenic gold nanoparticles were synthesized using aqueous solution of Sansevieria roxburghiana leaf extract. Optimum synthesis of gold nanoparticles was observed at 2 mM concentration of chloroauric acid and the reaction was completed by 60 min at 40 °C. The biomolecules, proteins and polyphenols present in the leaf extract were involved in the bioreduction of chloroauric acid. The synthesized gold nanoparticles were characterized by UV–vis absorption spectroscopy, dynamic light scattering, X-ray diffraction, energy dispersive X-ray analysis, Fourier transform infrared spectroscopy and transmission electron microscopy. The bioreduced gold nanoparticles exhibited shapes such as spherical, triangle, hexagonal, rod and decahedral. In the present investigation, for the first time, we report the biosynthesis of gold nanoparticles from S. roxburghiana and their catalytic potential in the degradation of organic pollutants such as 4-nitrophenol, acridine orange, congo red, bromothymol blue, phenol red and methylene blue. |
| Databáze: | OpenAIRE |
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