Int. J. Mol. Sci. 2010, 11(9), 3600-3609; doi:10.3390/ijms11093600
Article

Model Free Approach for Non-Isothermal Decomposition of Un-Irradiated and g-Irradiated Silver Acetate: New Route for Synthesis of Ag2O Nanoparticles

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Received: 5 August 2010; in revised form: 26 August 2010 / Accepted: 19 September 2010 / Published: 27 September 2010
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Kinetic studies for the non-isothermal decomposition of unirradiated and γ‑irradiated silver acetate with 103 kGy total γ-ray doses were carried out in air. The results showed that the decomposition proceeds in one major step in the temperature range of (180–270 °C) with the formation of Ag2O as solid residue. The non-isothermal data for un‑irradiated and γ-irradiated silver acetate were analyzed using Flynn-Wall-Ozawa (FWO) and nonlinear Vyazovkin (VYZ) iso-conversional methods. These free models on the investigated data showed a systematic dependence of Ea on a indicating a simple decomposition process. No significant changes in the thermal decomposition behavior of silver acetate were recorded as a result of γ-irradiation. Calcinations of γ-irradiated silver acetate (CH3COOAg) at 200 °C for 2 hours only led to the formation of pure Ag2O mono-dispersed nanoparticles. X-ray diffraction, FTIR and SEM techniques were employed for characterization of the synthesized nanoparticles.
Keywords: non-isothermal decomposition; γ-irradiation; silver oxide; nanoparticles
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MDPI and ACS Style

Siddiqui, M.R.H.; Alshehri, S.; Warad, I.K.; El-Salam, N.M.A.; Mahfouz, R.M. Model Free Approach for Non-Isothermal Decomposition of Un-Irradiated and g-Irradiated Silver Acetate: New Route for Synthesis of Ag2O Nanoparticles. Int. J. Mol. Sci. 2010, 11, 3600-3609.

AMA Style

Siddiqui MRH, Alshehri S, Warad IK, El-Salam NMA, Mahfouz RM. Model Free Approach for Non-Isothermal Decomposition of Un-Irradiated and g-Irradiated Silver Acetate: New Route for Synthesis of Ag2O Nanoparticles. International Journal of Molecular Sciences. 2010; 11(9):3600-3609.

Chicago/Turabian Style

Siddiqui, Mohammed Rafiq H.; Alshehri, Saad; Warad, Ismail Kh.; El-Salam, Naser M. Abd; Mahfouz, Refaat M. 2010. "Model Free Approach for Non-Isothermal Decomposition of Un-Irradiated and g-Irradiated Silver Acetate: New Route for Synthesis of Ag2O Nanoparticles." Int. J. Mol. Sci. 11, no. 9: 3600-3609.

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