TY - JOUR
T1 - Physical and arsenic adsorption properties of maghemite and magnetite sub-microparticles
AU - Mejia-Santillan, M. E.
AU - Pariona, N.
AU - Bravo-C., J.
AU - Herrera-Trejo, M.
AU - Montejo-Alvaro, F.
AU - Zarate, A.
AU - Perry, D. L.
AU - Mtz-Enriquez, A. I.
N1 - Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2018/4/1
Y1 - 2018/4/1
N2 - The topotactic transformation from magnetite to maghemite sub-microparticles was demonstrated by a variety of techniques that include X-ray diffraction, Raman spectroscopy, electron microscopy, Mössbauer spectroscopy, magnetic measurements, and vis-NIR diffuse reflectance. The physical, chemical, and morphological properties of the particles were correlated with their adsorptive properties in water with respect to arsenic (V). The adsorptive properties of the iron oxide are increased by changing the crystal phases involved, specifically, the transformation of magnetite to maghemite. Maghemite sub-microparticles are capable of efficiently decreasing the arsenic content in water from 100 ppb to below the World Health Organization (WHO) guideline of 10 ppb.
AB - The topotactic transformation from magnetite to maghemite sub-microparticles was demonstrated by a variety of techniques that include X-ray diffraction, Raman spectroscopy, electron microscopy, Mössbauer spectroscopy, magnetic measurements, and vis-NIR diffuse reflectance. The physical, chemical, and morphological properties of the particles were correlated with their adsorptive properties in water with respect to arsenic (V). The adsorptive properties of the iron oxide are increased by changing the crystal phases involved, specifically, the transformation of magnetite to maghemite. Maghemite sub-microparticles are capable of efficiently decreasing the arsenic content in water from 100 ppb to below the World Health Organization (WHO) guideline of 10 ppb.
KW - Diffuse reflectance
KW - First-order reversal curve (FORC) diagrams
KW - Maghemite
KW - Mossbauer spectroscopy
KW - Sorption properties
UR - http://www.scopus.com/inward/record.url?scp=85036458238&partnerID=8YFLogxK
U2 - 10.1016/j.jmmm.2017.11.111
DO - 10.1016/j.jmmm.2017.11.111
M3 - Artículo
AN - SCOPUS:85036458238
SN - 0304-8853
VL - 451
SP - 594
EP - 601
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
ER -