TY - JOUR
T1 - One-step method for preparation of magnetic nanoparticles coated with chitosan
AU - Gregorio-Jauregui, Karla M.
AU - Pineda, Ma Guadalupe
AU - Rivera-Salinas, Jorge E.
AU - Hurtado, Gil
AU - Saade, Hened
AU - Martinez, José L.
AU - Ilyina, Anna
AU - López, Raúl G.
PY - 2012
Y1 - 2012
N2 - Preparation of magnetic nanoparticles coated with chitosan in one step by the coprecipitation method in the presence of different chitosan concentrations is reported here. Obtaining of magnetic superparamagnetic nanoparticles was confirmed by X-ray diffraction and magnetic measurements. Scanning transmission electron microscopy allowed to identify spheroidal nanoparticles with around 10-11nm in average diameter. Characterization of the products by Fourier transform infrared spectroscopy demonstrated that composite chitosan-magnetic nanoparticles were obtained. Chitosan content in obtained nanocomposites was estimated by thermogravimetric analysis. The nanocomposites were tested in Pb 2+ removal from a PbCl 2 aqueous solution, showing a removal efficacy up to 53.6. This work provides a simple method for chitosan-coated nanoparticles obtaining, which could be useful for heavy metal ions removal from water.
AB - Preparation of magnetic nanoparticles coated with chitosan in one step by the coprecipitation method in the presence of different chitosan concentrations is reported here. Obtaining of magnetic superparamagnetic nanoparticles was confirmed by X-ray diffraction and magnetic measurements. Scanning transmission electron microscopy allowed to identify spheroidal nanoparticles with around 10-11nm in average diameter. Characterization of the products by Fourier transform infrared spectroscopy demonstrated that composite chitosan-magnetic nanoparticles were obtained. Chitosan content in obtained nanocomposites was estimated by thermogravimetric analysis. The nanocomposites were tested in Pb 2+ removal from a PbCl 2 aqueous solution, showing a removal efficacy up to 53.6. This work provides a simple method for chitosan-coated nanoparticles obtaining, which could be useful for heavy metal ions removal from water.
UR - http://www.scopus.com/inward/record.url?scp=84864936220&partnerID=8YFLogxK
U2 - 10.1155/2012/813958
DO - 10.1155/2012/813958
M3 - Artículo
AN - SCOPUS:84864936220
SN - 1687-4110
VL - 2012
JO - Journal of Nanomaterials
JF - Journal of Nanomaterials
M1 - 813958
ER -