Variable Frequency Microwave Synthesis of Silver Nanoparticles

Jiang, Hongjin; Moon, Kyoung‐Sik; Zhang, Zhuqing; Pothukuchi, S.; Wong, Ching‐Ping

doi:10.1007/s11051-005-7522-6

Cited by 114 publications

(73 citation statements)

References 31 publications

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“…chemical [10][11][12][13], electrochemical [14] and photochemical reduction [15], ultrasound [16], microwave [17] gamma and electron irradiation [18][19][20][21][22][23][24]) for the synthesis of silver nanoparticles with different stabilisers have been developed.…”

Section: Introductionmentioning

confidence: 99%

Preparation of colloidal silver nanoparticles in poly(N-vinylpyrrolidone) by γ-irradiation

Du¹,

Phú

Duy

et al. 2008

Journal of Experimental Nanoscience

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Colloidal silver nanoparticles were prepared by -irradiating Ag þ in aqueous solution in the presence of 2% polyvinyl pyrrolidone (PVP) as stabilising agent and ethyl alcohol as free radical (OH . ) scavenger. The saturated conversion dose of Ag þ into Ag was determined by UV-Vis spectroscopy and the silver nanoparticles size was characterised by transmission electron microscopy. The influence of Ag þ concentration (1-50 mM) on the saturated conversion dose and average diameter of silver nanoparticles was investigated. Results showed that the saturated conversion dose was from 8 to 48 kGy and the silver particles size was in the range of 6-21 nm for Ag þ concentration from 1 to 50 mM. The effect of PVP molecular weight on silver particles size was studied as well.

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Section: Introductionmentioning

confidence: 99%

Preparation of colloidal silver nanoparticles in poly(N-vinylpyrrolidone) by γ-irradiation

Du¹,

Phú

Duy

et al. 2008

Journal of Experimental Nanoscience

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“…In this regard, synthesis using microwave irradiation is a good alternative to obtain Ag NPs in a short time. Microwave heating is more promising than thermal heating 3,4 since microwaves increase formation rates and homogenize Ag NPs sizes. 5 The thermal and non-thermal microwave effects on nanoparticle synthesis produce a significant heating rate acceleration and a more uniform temperature distribution, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…5 The thermal and non-thermal microwave effects on nanoparticle synthesis produce a significant heating rate acceleration and a more uniform temperature distribution, respectively. 4,6 Variable frequency microwave irradiation (VFM) can heat up the material quickly and uniformly, producing a more homogeneous nucleation and shorter synthesis time compared to those for conventional heating. 4 This is favorable for the formation of uniform metal colloids.…”

Section: Introductionmentioning

confidence: 99%

“…4,6 Variable frequency microwave irradiation (VFM) can heat up the material quickly and uniformly, producing a more homogeneous nucleation and shorter synthesis time compared to those for conventional heating. 4 This is favorable for the formation of uniform metal colloids.…”

Section: Introductionmentioning

confidence: 99%

“…The metal:polymer ratio may affect the particle morphologies and sizes. 4,6 Typical polymers employed as stabilizers of Ag NPs include polyvinylpirrolidone (PVP), 4 carboxymethylcellulose (CMC), 6 and polyvinyl alcohol (PVA). 7 For example, spherical Ag NPs with diameters of 10 ± 5 nm have been prepared by microwave irradiation of AgNO 3 solutions in ethanolic media using PVP as capping agent.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Microwave Preparation of Ag Nanoparticles for Chemiluminescence Enhancement

Creixell-Echeagaray

Ibáñez

Pena

et al. 2011

J Chinese Chemical Soc

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Chemiluminescence applications frequently require signal enhancement. We report a major improvement of the chemiluminescence of luminol in alkaline peroxide solutions by silver nanoparticles prepared by chemical reduction of AgNO 3 by NaH 2 PO 2 in ethylene glycol solution, with polyvinylpirrolidone as capping agent and using a simple microwave approach and set up. The luminescence emission is also shown to be much faster. The nanoparticles were characterized spectroscopically and by dynamic light scattering showing an average particle size of 36 nm.

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Microwave material processing—a review

2011

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Microwave heating is caused by the ability of the materials to absorb microwave energy and convert it to heat. This article represents a review on fundamentals of microwave heating and their interaction with materials for various applications in a comprehensive manner. Experimental studies of single, multimode, and variable frequency microwave processing were reviewed along with their applications. Modeling of microwave heating based on Lambert's law and Maxwell's electromagnetic field equations have also been reviewed along with their applications. Modeling approaches were used to predict the effect of resonances on microwave power absorption, the role of supports for microwave heating, and to determine the nonuniformity on heating rates. Various industrial applications on thermal processing have been reviewed. There is tremendous scope for theoretical and experimental studies on the athermal effects of microwaves. Some of the unresolved problems are identified and directions for further research are also suggested.

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Variable Frequency Microwave Synthesis of Silver Nanoparticles

Cited by 114 publications

References 31 publications

Preparation of colloidal silver nanoparticles in poly(N-vinylpyrrolidone) by γ-irradiation

Preparation of colloidal silver nanoparticles in poly(N-vinylpyrrolidone) by γ-irradiation

Microwave Preparation of Ag Nanoparticles for Chemiluminescence Enhancement

Microwave material processing—a review

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