Synthesis of Ag Nanoparticles-Clinoptilolite Composite by Homogeneous and Heterogeneous Nucleation

Abstract:

In this study, a natural zeolite clinoptilolite-type was impregnated through homogeneous and heterogeneous nucleation with silver nanoparticles. The synthesis of Ag nanoparticles was carried out by chemical reduction of silver nitrate (AgNO₃) with sodium borohydride (NaBH₄). In the case of homogeneous nucleation, colloidal solution of Ag nanoparticles at concentrations of 1, 2 and 4 parts per million was added and magnetically mixed with the porous material. With respect to heterogeneous nucleation, a solution of clinoptilolite and silver nitrate (0.01 M) was prepared and stirred; subsequently, the reduction of Ag was possible due to the addition of an aqueous solution of sodium borohydride. For the structural characterization, transmission electron microscopy (TEM), X-ray diffraction (XRD) and infrared spectroscopy (IR) techniques were carried out. The results were compared and discussed in both types of nucleation.

• Periodical: Materials Science Forum (Volume 755)
• Pages: 97-103
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.755.97
• Online since: April 2013
• Authors: A. Ruíz-Baltazar, Rodrigo Alonso Esparza Muñoz, R. Pérez, Gerardo Antonio Rosas Trejo
• Keywords: Chemical Synthesis, Nanoparticle, Transmission Electron Microscopy (TEM)

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