SciELO - Scientific Electronic Library Online

vol.85 issue1Production of electricity using Acidithiobacillus ferrooxidans from thiosulphate and ferric ionsStabilization of the Horse Manure Through an Aerobic Process Similar to Composting author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




  • Have no cited articlesCited by SciELO

Related links

  • Have no similar articlesSimilars in SciELO


Revista de la Sociedad Química del Perú

Print version ISSN 1810-634X


ZEA ALVAREZ, Julia Lilians et al. Obtaining and Characterization of Nanocomposite: Silver Nanoparticles and Carboximethylquitosan (NPsAg-CMQ). Rev. Soc. Quím. Perú [online]. 2019, vol.85, n.1, pp.14-24. ISSN 1810-634X.

The synthesis of the nanocomposite based on silver nanoparticles and O-carboxymethyl chitosan (NPsAg-CMQ), by the chemical reduction method, using the O-carboxymethylchitosan 0.01% and AgNO 1 mM in a ratio of 3: 2, with a time of 30 minute reaction, at room temperature and neutral pH. The nanocomposite obtained from the complex [Ag(NH ) ]+ was synthesized under the same conditions as AgNO but at a basic pH. Using UV-VIS spectrophotometry, the plasmon formation of silver nanoparticles at 410nm was verified for both silver sources. The results by Dynamic Light Dispersion (DLS) for AgNO , shows a monodisperse distribution of the nanocomposite with an average hydrodynamic size of 166.7 nm. In the case of the diamine silver [Ag(NH ) ] + 83.9% had an average size of 54.42 nm. and 15.2% of 4.48 nm. Infrared Spectroscopy Measurements with Fourier Transform (FT-IR) shows the inhibition of the spectral bands at 879 and 723 cm-1 indicating the presence of NPsAg in the nanocomposite NPsAg-CMQ. The results of scanning electron microscopy (SEM-STEM) showed that the silver nanoparticles in the nanocomposite were spherical in shape and of a size of 5 to 20 nm.

Keywords : Carboxymethylchitosan; silver nanoparticles; nanocomposite.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License