Resumen

BARRIENTOS, J.E.  y  MATUTES, A. J.. Uso de nanomateriales magnéticos para la remoción de arsénico del agua para consumo humano. Mundo nano [online]. 2013, vol.6, n.11, pp.76-84.  Epub 23-Jun-2021. ISSN 2448-5691.  https://doi.org/10.22201/ceiich.24485691e.2013.11.50006.

Nanomagnetic materials were obtained by physical method like chemical vapor deposition assisted by aerosol (ACCVD) and chemical method (coprecipitacion), which materials shows high capacity to remove arsenic (As) and other content impurities in water to human consume and could be a viable alternative to remove impurities if is compared with other commercial methods available. Both materials obtaining by different methods were evaluated in obtaining cost and removal capacity technical, the reactants agents were high purity: utilizing reagent grade materials: Iron (III) Chloride Hexahydrate (FeCl3·6H2O (JT Baker)), Iron (II) Chloride Tetrahydrate (FeCl2·4H2O (JT Baker)), NH4OH and tridistilled water. Size and composition of nanoparticles were reached varying experimental conditions, metallic pure iron (Fe) and hematite (Fe2O3) were obtained by physical method. The magnetic materials removed 100% of arsenic contained in water after 5 minutes contact with water contaminated with As, also magnetite was obtained by chemical method and to 5 minutes of contact the remotion was 95%. Both materials were analyzed by transmission electronic microscopy (TEM) and scanning electronic microscopy (SEM). The magnetite shows capability to remove other chemical elements presents in water consume human how: Cl, Ca, Na and S.

Palabras llave : nanoparticles; arsenic; ACCVD y coprecipitation.

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