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Effects of different operating parameters on the particle size of silver chloride nanoparticles prepared in a spinning disk reactor

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Abstract

The aim of this research was to present an experimental method for large-scale production of silver chloride nanoparticles using spinning disk reactor. Silver nitrate and sodium chloride were used as the reactants, and the protecting agent was gelatin. The experiments were carried out in a continuous mode by injecting the reactants onto the surface of the spinning disk, where a chemical precipitation reaction took place to form AgCl particles. The effects of various operating variables, including supersaturation, disk rotational speed, reactants flow rate, disk diameter, and excess ions, on the particle size of products were investigated. In addition, the AgCl nanoparticles were characterized by scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray diffraction. According to the results, smaller AgCl particles are obtained under higher supersaturations and also higher disk rotation speeds. Moreover, in the range of our investigation, the use of lower reactants flow rates and larger disk diameter can reduce the particle size of products. The non-stoichiometric condition of reactants has a significant influence on the reduction in particle aggregation. It was also found that by optimizing the operating conditions, uniform AgCl nanoparticles with the mean size of around 37 nm can be produced.

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Acknowledgments

The authors wish to express their gratitude to Dr. Molaei Dehkordi for his support and guidance during this work. The financial supports from the Sharif University of Technology and the Iranian Nanotechnology Initiative are also gratefully acknowledged.

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Authors and Affiliations

  1. Department of Chemical and Petroleum Engineering, Sharif University of Technology, P.O. Box 11155-9465, Tehran, Iran

    Hossein Dabir

  2. Department of Chemical Engineering, Ferdowsi University of Mashhad, P.O. Box 91779-48944, Mashhad, Iran

    Morteza Davarpanah & Ali Ahmadpour

Authors
  1. Hossein Dabir
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  2. Morteza Davarpanah
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  3. Ali Ahmadpour
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Correspondence to Morteza Davarpanah.

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Dabir, H., Davarpanah, M. & Ahmadpour, A. Effects of different operating parameters on the particle size of silver chloride nanoparticles prepared in a spinning disk reactor. Appl. Phys. A 120, 105–113 (2015). https://doi.org/10.1007/s00339-015-9174-4

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  • DOI: https://doi.org/10.1007/s00339-015-9174-4

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