Conductive carbon-clay nanocomposites from petroleum oily sludge.
J Hazard Mater
; 167(1-3): 879-84, 2009 Aug 15.
Article
en En
| MEDLINE
| ID: mdl-19261382
Oily sludge samples formed in water-oil separation tanks from a petroleum industry were collected, characterized and heat-treated at different temperatures, in order to yield carbon-clay composites. EDX microanalysis, XRD and FTIR data revealed that before carbonization the oily sludge was formed mainly by a mixture of quartz, montmorillonite, calcite, barite and oil residues. After carbonization, mineral phases present were mainly quartz, anorthite and gehlenite, in addition to graphitic and disordered carbon domains, according to XRD, Raman and TEM measurements. A preliminary evaluation of the electrical conductivity performed by Impedance Spectroscopy revealed that the composites formed are conductive, exhibiting conductivity values typical of semiconductors, in contrast to the precursor material.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Aguas del Alcantarillado
/
Petróleo
/
Carbono
/
Conductividad Eléctrica
/
Nanocompuestos
/
Silicatos de Aluminio
Idioma:
En
Revista:
J Hazard Mater
Asunto de la revista:
SAUDE AMBIENTAL
Año:
2009
Tipo del documento:
Article
País de afiliación:
Brasil
Pais de publicación:
Países Bajos