Synthesis and surface chemistry of nano silver particles

Revathi, J.; Karuppaiah, Murugan; Hebalkar, Neha; Rao, Tata Narsinga

doi:10.1016/j.poly.2009.05.038

Cited by 218 publications

(112 citation statements)

References 35 publications

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“…According to Liu et al (2008) and Zhang et al (1996), the reduction of wavenumber for the C=O band might due to the weakening of bond via partial donation of oxygen to the silver. In the fingerprint region, a sharp and medium absorption band was detected at 1382 cm -1 which might be attributed to the nitrate ions as reported by Janardhanan et al (2009). At 1253 cm -1 and 1053 cm -1 , broad and weak absorption peaks were observed which attribute to -C-N stretching vibration.…”

Section: Chemical Compositions Analysis Of the Nspssupporting

confidence: 68%

Influence of Precursor Concentration and Temperature on the Formation of Nanosilver in Chemical Reduction Method

Ahmad¹,

Ang²,

Afifi³

et al. 2018

JSM

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Nanosilver particles (NSPs) were produced by the reduction of silver nitrate using glucose as reducer, poly (vinyl pyrrolidone) as stabilizer and sodium hydroxide as reaction enhancer. Two parameters were investigated which are silver nitrate concentration (0.1 M, 0.5 M and 1.0 M) and reaction temperature (60°C and 80°C). Through spectral analysis using ultraviolet-visible spectrophotometer (UV-vis)

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Section: Chemical Compositions Analysis Of the Nspssupporting

confidence: 68%

Influence of Precursor Concentration and Temperature on the Formation of Nanosilver in Chemical Reduction Method

Ahmad¹,

Ang²,

Afifi³

et al. 2018

JSM

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“…3b, Ag nanoparticles stabilized by MSA are formed directly after reduction of silver salt and they are relatively stable during prolonged storage. In UV-Vis spectrum of Ag/MSA solution left in the dark for 12 months, absorption maximum was shift towards longer wavelengths (from 395 to 425 nm), moreover, band broadened, indicating an increase in nanoparticle size [23]. It means that Ag nanoparticles stabilized by MSA undergo slow agglomeration.…”

Section: Uv-vis Spectroscopymentioning

confidence: 96%

Effect of stabilizer type on the physicochemical properties of poly(acrylic acid)/silver nanocomposites for biomedical applications

Kaczmarek

Metzler

Węgrzynowska-Drzymalska

2016

Polym. Bull.

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Poly(acrylic acid), PAA, has been mixed in solution with silver nanoparticles, obtained by chemical reduction of silver nitrate. Two different sulfurcontaining organic compounds have been used as stabilizers of Ag nanoparticles: mercaptosuccinic acid (MSA) and 3-mercaptopropionic acid (MPA). The formation of Ag nanoparticles has been monitored by UV-Vis spectroscopy. The morphology and composition of obtained nanomaterials has been studied by electron microscopy techniques (SEM/EDX and HR-TEM). Nanomechanical properties of nanocomposites (adhesion and nanohardness) have been investigated by Atomic Force Microscopy (AFM). Thermal stability has been determined using thermogravimetric analysis. The exposure of specimens to UV radiation allowed to observe the changes in the nanoparticle structure and to estimate nanocomposite photostability. MSA has proved to be a better stabilizer of Ag nanoparticles immediately after the synthesis, when MPA provides better storage stability. MPA has allowed for the creation of nanoparticles using mixed reduction (chemical/photochemical) of AgNO 3 . It has been found that the nanocomposite materials are stable for 12 months of storage in solution and in solid form.

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“…Dubey et al [23] found that with an increase in levels extract quantity, the particle size of synthesized Ag nanoparticles decreased and Ag nanoparticles possessed more uniform shape. Janardhanan et al [37] showed that increasing the AgNO 3 concentration from 3 mm to 300 mm caused an increase of particle sizes from 40 nm to 630 nm, growing towards bulk Ag.…”

Section: Experimental Design With Rsmmentioning

confidence: 99%

Investigation of lichen based green synthesis of silver nanoparticles with response surface methodology

Yıldız

Ateş

Yılmaz

et al. 2014

Green Processing and Synthesis

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Abstract:In this study, silver (Ag) nanoparticles were successfully biosynthesized from AgNO 3 through a simple green route using the lichen extract [Cetraria islandica (L) Ach] as a reducing and stabilizing agent. The mean sizes of spherical Ag nanoparticles with diameters ranging from 5 nm to 29 nm were obtained at different reaction conditions. The nanoparticles were characterized using transmission electron microscopy (TEM), energy dispersive X-ray (EDX), ultraviolet-visible (UV-VIS) and Fourier transform infrared spectroscopy (FTIR) techniques. Response surface methodology (RSM) was used to investigate the effects of temperature, reaction time and AgNO 3 /lichen ratio on green synthesis of Ag nanoparticles. The results showed that the increase in reaction time and AgNO 3 / lichen ratio caused a decrease of particle size and the increase in temperature resulted in bigger particles.

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Synthesis and surface chemistry of nano silver particles

Cited by 218 publications

References 35 publications

Influence of Precursor Concentration and Temperature on the Formation of Nanosilver in Chemical Reduction Method

Influence of Precursor Concentration and Temperature on the Formation of Nanosilver in Chemical Reduction Method

Effect of stabilizer type on the physicochemical properties of poly(acrylic acid)/silver nanocomposites for biomedical applications

Investigation of lichen based green synthesis of silver nanoparticles with response surface methodology

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