Synthesis and characterization of zero-valent iron nanoparticles supported on SBA-15 | Zendy

Felipe Sombra dos Santos | Zendy; Fernanda Rodrigues Lago | Zendy; Lídia Yokoyama | Zendy; Fabiana Valéria da Fonseca | Zendy

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Synthesis and characterization of zero-valent iron nanoparticles supported on SBA-15

Author(s) -

Felipe Sombra dos Santos,

Fernanda Rodrigues Lago,

Lídia Yokoyama,

Fabiana Valéria da Fonseca

Publication year - 2017

Publication title -

journal of materials research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.832

H-Index - 44

eISSN - 2214-0697

pISSN - 2238-7854

DOI - 10.1016/j.jmrt.2016.11.004

Subject(s) - zerovalent iron , materials science , nanomaterials , sodium borohydride , nanoparticle , transmission electron microscopy , zeta potential , chemical engineering , scanning electron microscope , nuclear chemistry , iron oxide nanoparticles , iron oxide , inorganic chemistry , nanotechnology , organic chemistry , metallurgy , chemistry , adsorption , catalysis , composite material , engineering

This paper aims to synthesize zero-valent iron nanoparticles (nZVI) supported on SBA-15 nanosilica. The nanosilica generate in the system by polymer reaction with hydrochloric acid under controlled temperature. After, the iron nanomaterial was obtained by sodium borohydride reduction as described in this work. Afterward the synthesis of the nanoparticles contained iron supported on silica SBA-15, the material was characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy, zeta potential and X-ray fluorescence spectroscopy. The results indicated that nanomaterial obtained was in nanometric scale, by TEM results, and showing characteristic peaks at EDS results, with 11.9% iron and 14.0% silicon content, respectively, and containing 73.0% and 27.0% of their respective oxides through X-ray fluorescence spectroscopy. The isoelectric potential of the sample was around 2.0, close to the value reported for silica, due to the higher percentage of silica in the sample when compared to iron. The obtained material can be used, for some cases, as an possible alternative, to the Fenton reaction for the degradation of xenobiotic compounds or other applications in the groundwater and wastewater treatments

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