Photocatalytic degradation of organic dyes and antimicrobial activity of silver nanoparticles fast synthesized by flavonoids fraction of Psidium guajava L. leaves
| Autor: | Yanan Wu, Zhenqiang Wu, Fangju Lu, Yan Liu, Lu Wang |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Psidium
Alcaligenes faecalis biology Chemistry Coomassie Brilliant Blue Aspergillus niger 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics biology.organism_classification Antimicrobial 01 natural sciences Atomic and Molecular Physics and Optics Silver nanoparticle 0104 chemical sciences Electronic Optical and Magnetic Materials Absorbance chemistry.chemical_compound Materials Chemistry Methyl orange Physical and Theoretical Chemistry 0210 nano-technology Spectroscopy Nuclear chemistry |
| Zdroj: | Journal of Molecular Liquids. 263:187-192 |
| ISSN: | 0167-7322 |
| DOI: | 10.1016/j.molliq.2018.04.151 |
| Popis: | A novel and ecofriendly procedure was developed for the synthesis of silver nanoparticles (FAgNPs) with the reduction of AgNO3. The flavonoids fractions (FF) of Psidium guajava leaves (PGL) were used as a green reducing and capping agent. Results showed that FF from PGL rapidly could synthesize into regular spheres and stable silver nanoparticles within 10 min. The average particle size of synthesized FAgNPs was 15–20 nm, with maximum absorbance wavelength at 420 nm. Moreover, FAgNPs exhibited a strong inhibition against the selected microorganisms, especially Alcaligenes faecalis, Escherichia coli and Aspergillus niger. Importantly, FAgNPs also possessed good catalytic degradation potency for organic dyes, namely, methyl orange and Coomassie brilliant blue G-250, under solar or UV irradiation. Overall, FAgNPs have good potential application prospects in the development of anti-bacterial materials and for the photocatalytic degradation of certain toxic dyes or chemicals, thereby paving the way for waste treatment and environmental bio-remediation. |
| Databáze: | OpenAIRE |
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