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Syntheses and characterization of AgI nano-structures by ultrasonic method; different morphologies under different conditions

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2 Author(s)
Abbasi, A.R. ; Dept. of Chem., Tarbiat Modares Univ., Tehran, Iran ; Morsali, A.

Nanostructures of AgI are prepared by reaction between AgNO3 and KI under ultrasound irradiation. Some of parameters such as effect of stirring, temperature, sonicating time in growth and morphology of the nano-structures are studied. The size distribution depends slightly on reaction conditions. But morphology of nano-structure depends strongly on reaction parameters. With change of solvent concentration and sonicating time, nanoparticles structures changed to nanowires. An increasing of temperature results in an increasing of solubility. As a result, nuclei with small sizes become unstable and dissolve back into the solution. Attendance or non-attendance of stirring is another parameter that effects on morphology of nano-structures. In some conditions, non-attendance of stirring led to nanowires structure and in the other conditions, nanoparticles structures are prepared. The samples are characterized with powder X-ray diffraction (XRD), scanning electron microscopy (SEM).

Published in:

Enabling Science and Nanotechnology (ESciNano), 2010 International Conference on

Date of Conference:

1-3 Dec. 2010