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Carbon foams as catalyst supports for phenol photodegradation

AutorFernández Velasco, Leticia ; Tsyntsarski, B.; Petrova, B.; Budinova, T.; Petrov, N.; Parra Soto, José Bernardo ; Ovín Ania, María Concepción
Palabras claveCarbon foam
Photocatalysis
Titania
Phenol
Fecha de publicacióndic-2010
EditorElsevier
CitaciónJournal of Hazardous Materials 184(1-3): 843-848 (2010)
ResumenA carbon foam using coal tar pitch as precursor was prepared and investigated as support for titanium oxide for the photocatalytic degradation of phenol. The performance of the carbon foam/titania composite was compared to those of unsupported titania and other activated carbon composites from the literature. The photodegradation rate of phenol over the catalysts under UV illumination was fitted to the Langmuir–Hinshelwood model; data showed that the apparent rate constant of the carbon foam supported titania was almost three times larger than that of bare titania, and comparable to that of other carbon supported composites. Considering the low porous features of the carbon foam, this suggests that large surface area supports are not essential to achieve high degradation rates and efficiencies. Moreover, when titania is supported on the carbon foam large amounts of catechol are detected in solution after UV irradiation, indicating a better degradation efficiency.
Versión del editorhttp://dx.doi.org/10.1016/j.jhazmat.2010.08.118
URIhttp://hdl.handle.net/10261/99254
DOI10.1016/j.jhazmat.2010.08.118
ISSN0304-3894
E-ISSN1873-3336
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