Ag Nanoparticles Adsorption on Diatom-Montmorillonite Clays

Abstract:

In this work, a spectroscopic and structural characterization of diatomaceous earth-montmorillonite clays after impregnated with silver nanoparticles were carried out. The silver nanoparticles were synthesized by chemical reduction with sodium borohydride starting from silver nitrate solution. The obtained nanoparticles were stabilized with polyvinyl-pyrrolidone as a surface agent. In order to perform the homogeneous nucleation process, Ag nanoparticles solutions at concentrations of 1, 2 and 4 parts per million were magnetically mixed in the porous material. Additionally, we assessed the porous material adsorption ability of silver by atomic absorption spectroscopy. The quantity of Ag nanoparticles adsorbed by the diatomaceous earth and the adsorption rate as function of the concentration of Ag nanoparticles were established. Other complementary techniques such as X-ray diffraction, infrared spectroscopy and transmission and scanning electron microscopy were used.

• Periodical: Materials Science Forum (Volume 755)
• Pages: 91-96
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.755.91
• 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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