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PREPARATION OF IRON/CARBON MATERIAL FROM BIODIESEL WASTE FOR APPLICATION IN THE REMOVAL OF ORGANIC CONTAMINANTS. In this work, iron/carbon-based catalysts obtained from biodiesel residues, glycerin, were prepared. The composites were prepared by thermal carbonization of the glycerin polymer, from biodiesel residues, in the presence of iron salt. The materials obtained were characterized by adsorption/desorption of N2, scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectroscopy and thermogravimetric analysis. XRD analysis have shown the presence of hematite and magnetite. The methylene blue (MB) adsorption and oxidation tests reached 99% color removal in the presence of hydrogen peroxide. The steadystate spectra confirmed the MB oxidation by the reduction of the fluorescence intensity. Besides, it has high stability, with no active phase leaching, proving a heterogeneous oxidation process.

Index code	Element
ti	article title
au	author
kw	article keywords
subject	subject (title words, abstract and keywords)
ab	abstract
ta	journal short title (e.g. Cad. Saúde Pública)
journal_title	journal full title (e.g. Cadernos de Saúde Pública)
la	publication language code (e.g. pt - Portuguese, es - Spanish)
type	document type
pid	publication identifier
publication_year	publication year of publication
sponsor	sponsor
aff_country	country code of the author's affiliation
aff_institution	author affiliation institution
volume	article volume
issue	article issue
elocation	elocation
doi	DOI number
issn	journal ISSN
in	SciELO colection code (e.g. scl - Brasil, col - Colômbia)
use_license	article usage license code

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