Synthesis of Silver Nanoparticles Using Complexing Agent Method: Comparing the Effect of Ammonium Hydroxide and Nitric Acid on Some Physical Properties of Nanoparticles |
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| Authors: | Sayed?Ali?Akbar?Ghorashi Email author" target="_blank">Mahdi?KamaliEmail author |
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| Institution: | (1) Department of Physics, Faculty of Science, University of Isfahan, Isfahan, Islamic Republic of Iran;(2) Chemical Processes Research Department, Engineering Research Center, University of Isfahan, Isfahan, Islamic Republic of Iran;(3) Faculty of Advanced Sciences and Technologies, University of Isfahan, Isfahan, Islamic Republic of Iran; |
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| Abstract: | Silver nanoparticles were prepared using complexing agent method in which citric acid was used as the complexing agent. The
effect of ammonium hydroxide and nitric acid addition on size, morphology, purity and surface area of nanoparticles were studied
and compared. XRD, TEM, EDAX and BET were used for the characterization of synthesized nanoparticles. Addition of ammonium
hydroxide led to smaller size of the silver nanoparticles. However, lower purity of nanoparticles was obtained when ammonium
hydroxide was added to the mixture. However, the morphology of nanoparticles in both conditions is same. Also the experimental
studies of nanoparticles surface areas show their tracking by size as we expected. These effects can be explained by the role
of ammonium hydroxide and nitric acid on the direction of equilibrium reaction and affecting the solubility of silver citrate. |
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