Size optimisation of silver nanoparticles synthesised by gallic acid using the response surface methodology

This work reports the synthesis of silver nanoparticles (AgNPs) from Ag nitrate (AgNO3) using the gallic acid (GA) as a green methodology without utilisation of hazardous chemicals. The effects of variables such as AgNO3 concentration, GA concentration, and pH on the average particle size of AgPs we...

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Vydáno v:	Micro & nano letters Ročník 15; číslo 6; s. 403 - 408
Hlavní autoři:	Ahani, Mina, Khatibzadeh, Marziyeh
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Stevenage The Institution of Engineering and Technology 27.05.2020 John Wiley & Sons, Inc
Témata:	antibacterial activity dynamic light scattering analysis field emission electron microscopy Fourier transform infrared spectra Fourier transform infrared spectroscopy Fourier transforms GA concentration Gallic acid green methodology Heat treating light scattering minimum average particle size nanofabrication nanomedicine Nanoparticles Optimization Particle size Photon correlation spectroscopy Response surface methodology scanning electron microscopy Silver silver compounds silver nanoparticles size 7.51 nm size 8.0 nm size optimisation spectrochemical analysis Spectrum analysis transmission electron microscopy ultraviolet spectra ultraviolet–visible spectroscopy Variance analysis visible spectra X‐ray chemical analysis X‐ray diffraction antibacterial activity particle size minimum average particle size Fourier transform infrared spectra Ag nanofabrication X-ray diffraction size optimisation response surface methodology light scattering GA concentration visible spectra dynamic light scattering analysis nanoparticles pH size 7.51 nm transmission electron microscopy spectrochemical analysis ultraviolet–visible spectroscopy scanning electron microscopy size 8.0 nm nanomedicine gallic acid ultraviolet spectra silver nanoparticles field emission electron microscopy X-ray chemical analysis silver Fourier transform infrared spectroscopy green methodology silver compounds
ISSN:	1750-0443, 1750-0443
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Shrnutí:	This work reports the synthesis of silver nanoparticles (AgNPs) from Ag nitrate (AgNO3) using the gallic acid (GA) as a green methodology without utilisation of hazardous chemicals. The effects of variables such as AgNO3 concentration, GA concentration, and pH on the average particle size of AgPs were optimised through response surface methodology based on the central composite design at three levels to obtain the desired response, i.e. minimum average particle size. The formation of AgNPs at each experiment was characterised by ultraviolet–visible (UV–vis) spectroscopy and the average particle size was measured by dynamic light scattering (DLS). To evaluate the significance of factors on the response and their quantitative effects, analysis of variance was carried out. The results indicated that the pH was the most effective factor on the response. The AgNPs synthesised at optimised conditions (5.42 mM of AgNO3, 6.25 mM of GA, and pH = 9.02) were characterised by X-ray diffraction, DLS, field-emission scanning electron microscope, energy dispersive X-ray, transmission electron microscopy, UV–vis spectroscopy, and Fourier-transform infrared spectroscopy. On the basis of the DLS, the average particle size of AgNPs obtained 8 nm, which was in satisfactory agreement with the predicted value (7.51 nm) by model.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14
ISSN:	1750-0443 1750-0443
DOI:	10.1049/mnl.2019.0780