Abstracts Book - IMRC 2018

• SF5-P042
SYNTHESIS AND CHARACTERIZATION OF Fe3O4@α-FeOOH FOR
ARSENIC SPECIES REMOVAL IN AQUEOUS MEDIUM
Herlys Viltres Cobas 1 , Oscar Fernando Odio Chacón 1 , Gala Montiel Rubies 2 , Paula Montserrat
Crespo Barrera 1 , Susel del Sol Fernandez 1 , Edgar Obed Pérez Reyes 1 , Raul Borja Urby 3 , Cruz
Paredes Sánchez 4 , Edilso Reguera Ruiz 1
1 Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Legaría, IPN,
Nanomateriales, Mexico. 2 Universidad de la Salle, Medio Ambiente, Mexico. 3 Centro de
Nanociencias y micro y Nanotecnologías del IPN, Microscopía, Mexico. 4 Escuela Superior de
Ingeniería Química e Industrias Extractivas, Ingenieria Química, Mexico.
Arsenic is one of the most widespread inorganic pollutants worldwide and
represents a significant potential risk to human health and the biosphere. It is
well known that arsenic is highly toxic and carcinogenic; at present, there are
reports of diverse countries with arsenic concentrations in drinking water higher
than those proposed by the World Health Organization (10 μg/L). Nanomaterials
and nanotechnologies inspire new possible solutions to major environmental
issues nowadays. It has been reported that adsorption strategies using iron
oxide nanoparticles are very effective for the removal of arsenic in drinking
waters. In this case, an inorganic hybrid material could have better application
in the arsenic remove, due to a large superficial area of goethite (α-FeOOH) and
the superparamagnetic properties of magnetite (Fe 3 O 4 ) give a great versatility to
the hybrid material for the separation process.
Magnetic nanoparticles Fe 3 O 4 @α-FeOOH were prepared using a co-precipitation
method for obtained magnetite and an aging method for the hybrid
nanomaterial. The nanoparticles were characterized by DRX, FT-IR, TEM and
vibrational magnetometry. In the inorganic hybrid material was observed a
mixture of phases, with characteristic peaks of Fe 3 O 4 and α-FeOOH DRX. This
result was confirmed by FTIR with typical bands of both phases. On the other
hand, the presence of magnetite spheres inside and outside of the nanorods
was observed by TEM images.
Acknowledgment:
Laboratorio Nacional de Almacenamiento y Conversión de Energía (LNCAE)
Laboratorio Nacional de Agua (LNA)
CONACYT