A convenient phase transfer route for Ag nanoparticles

Zhao, Simin

doi:10.1016/s1386-9477(04)00017-7

Cited by 8 publications

(9 citation statements)

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“…The carbonyl stretch vibration in carboxylic acids, ketones, and aldehydes is observed at around 1760 cm −1 (42-44). The absorption peak at about 1612 cm −1 can be attributed to the asymmetric stretching vibration of COO−, while the band at 1420 cm −1 is a result of the symmetric stretching vibration of COO− and the stretching vibration of C−O (44)(45)(46). Moreover, the band within 1200-1000 cm −1 is dominated by ring vibrations overlapped with stretching vibrations of (C−O−H) side groups and the (C−O−C) glycoside band vibration.…”

Section: Ft-ir Resultsmentioning

confidence: 99%

Green synthesis, characterization and antibacterial activity of silver nanoparticles from root extract of Lepidium draba weed

Benakashani

Allafchian

Jalali

2017

Green Chemistry Letters and Reviews

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Section: Ft-ir Resultsmentioning

confidence: 99%

Green synthesis, characterization and antibacterial activity of silver nanoparticles from root extract of Lepidium draba weed

Benakashani

Allafchian

Jalali

2017

Green Chemistry Letters and Reviews

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“…Although tannic acid has been previously utilized as a reducing agent in the presence of additional stabilizers [48] or as both the reducing and stabilizing agent [49,50] but the reaction times reported lie between half to two and a half hours at 80 ∘ C, whereas the particle sizes reported are >15 nm. The crucial difference between the study conducted by Sivaraman et al [16] and the earlier reports is that the pH of the tannic acid solution was adjusted prior to the addition of metal salt.…”

Section: Silver Nanoparticles Synthesized Using Tannic Acidmentioning

confidence: 99%

Reviewing the Tannic Acid Mediated Synthesis of Metal Nanoparticles

Ahmad

2014

Journal of Nanotechnology

139

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Metal nanoparticles harbour numerous exceptional physiochemical properties absolutely different from those of bulk metal as a function of their extremely small size and large superficial area to volume. Naked metal nanoparticles are synthesized by various physical and chemical methods. Chemical methods involving metal salt reduction in solution enjoy an extra edge over other protocols owing to their relative facileness and capability of controlling particle size along with the attribute of surface tailoring. Although chemical methods are the easiest, they are marred by the use of hazardous chemicals such as borohydrides. This has led to inclination of scientific community towards eco-friendly agents for the reduction of metal salts to form nanoparticles. Tannic acid, a plant derived polyphenolic compound, is one such agent which embodies characteristics of being harmless and environmentally friendly combined with being a good reducing and stabilizing agent. In this review, first various methods used to prepare metal nanoparticles are highlighted and further tannic acid mediated synthesis of metal nanoparticles is emphasized. This review brings forth the most recent findings on this issue.

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“…In view of these metals being noble and also environmental concerns, organic based reductants have been widely used in this practice. These include trisodium citrate (C6H5O7Na3), 14,22,23) formaldehyde (CH2O), 8,12) polyethylene glycol (C2n 2H4n 6 On 2 ), 24) glucose (C6H12O6), 22) ascorbic acid (C6H8O6), 25) tannic acid (C34H28O21), 26) polyvinylapyrrolidone (PVP: C6H9NO), 14,22,27) polyvinylalcohol (PVA; (C2H4O)n), 22,27) oleyl amine (C18H37N), 11) and many more. In addition, the literature mentions a host of other organic reductants.…”

Section: B Choice Of Reductantsmentioning

confidence: 99%

“…The so called "inverse micelle method" is frequently used in the synthesis of nano-metal particles, and utilizes such a two-phase system. 22,26) As depicted in Fig 2, a group of metal ions dissolved in a water droplet are surrounded by organic surfactants which have a special affinity with the metal ions. These metal ions can be negative, as in the case of AuCl4or positive as in the case of Ag inside the droplets.…”

Section: F Reduction With Organic Phasementioning

confidence: 99%

Challenges and Opportunities in Direct Write Technology Using Nano-metal Particles

Han

Kim

2009

KONA

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Direct write technology assists the electronic industry in their effort to miniaturize electronic circuits and enhance speed of printing capability. The technology allows printing various patterns without employing a mask or a resist with an enhanced speed with the aid of computer. This paper describes the current status of the synthesis of conductive inks, a key to success in this technology. There are numerous factors to overcome in manufacturing inks which meet all the necessary conditions of conductivity, viscosity, and stability. In order to achieve the required conductivity, nano-particles used in the ink have to be made from gold, silver or copper. Inherent problems involved in these metal powders include high melting point, coagulation, impurities, cost, and, in the case of copper, oxidation. The direction of research currently being carried out in meeting and overcoming various challenges in this technology is reviewed and discussed. Other salient applications of nano-sized metal powders are also briefly examined.

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A convenient phase transfer route for Ag nanoparticles

Cited by 8 publications

References 0 publications

Green synthesis, characterization and antibacterial activity of silver nanoparticles from root extract of Lepidium draba weed

Green synthesis, characterization and antibacterial activity of silver nanoparticles from root extract of Lepidium draba weed

Reviewing the Tannic Acid Mediated Synthesis of Metal Nanoparticles

Challenges and Opportunities in Direct Write Technology Using Nano-metal Particles

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