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Synthesis of Silver Halide Nanosols

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Michalak E., Nowak P., Król-Gracz A., Dyonizy A.

Acta Physica Polonica A

2012

vol. 121

issue 1

200-202

The aim of this work was to establish the average size of silver halide nanosols. The method applied was based on the optical turbidance measurements in real time of crystallization process. Dilute turbid suspensions of silver bromide, chloride and iodide stabilized by excess of halide ions and gelatin were measured over wavelength range from 450 nm to 600 nm. Experimental results were compared with the scattering theory of Rayleigh. Relation between dosing rate of reactants to dispersion system and size of obtained silver halide crystals was investigated. Interest in crystalline gelatine-stabilised aqueous suspensions of silver halide is due to their application as a substrate for the synthesis of silver nanoparticles.

Hydroquinone Synthesis of Silver Nanoparticles from Silver Bromide Suspensions

100%

Król-Gracz A., Nowak P., Michalak E., Dyonizy A.

Acta Physica Polonica A

2012

vol. 121

issue 1

196-199

The results of research into the preparation of silver nanoparticles using photoreduction in the presence of hydroquinone as the reductant were discussed. Substrates for the synthesis of silver nanoparticles were ultrafine crystalline gelatine-stabilised aqueous suspensions of silver bromide. The influence of the reductant to substrate molar ratio and the medium's pH to the efficient production of silver nanoparticles were studied. The properties of resultant silver particles were examined using UV-Vis spectroscopy. Transmission electron microscopy was used for the photomicrography of silver nanoparticles suspensions.

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2 Acta Physica Polonica A

2 2012

2 Dyonizy A.

2 Król-Gracz A.

2 Michalak E.

2 Nowak P.

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Synthesis of Silver Halide Nanosols

Hydroquinone Synthesis of Silver Nanoparticles from Silver Bromide Suspensions