You can use the filter on the left to narrow the results
Previous
Type
All Books Papers
Title
Author
Keywords
ISBN
DOI Access
CSIC digital access
Search
Details
PublicationApplied Catalysis B: Environmental
Year2011
Volume104
Pages101–109
International

Carbon nanostrutured materials as direct catalysts for phenol oxidation in aqueous phase

Authors:Maria Soria Sanchez , Angel Maroto Valiente , Jesús Álvarez Rodríguez , Vicenta Muñoz , Inmaculada Rodríguez Ramos, Antonio Guerrero Ruiz
Groups of research:Group for Molecular Design of Heterogeneous Catalysts

The catalytic oxidation of phenol in aqueous phase (CWAO) over different carbon nanostrutured materials, nanofibres (CNFs), carbon nanotubes (CNTs) and high surface area graphite (HSAG), and the derivative materials prepared by surface oxidation, has been comparatively studied. Furthermore, in order to determine the effect of the oxidation treatment the samples were characterized by thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), and BET measurements. Important differences among these carbon materials were found in terms of catalytic activity. The oxidized CNFs (ox/CNFs), which probably exhibits the most homogeneous surface after introduction of carboxylic groups by oxidation were the most catalytically active. Particular emphasis has been paid to understand the role of different surface chemistry on the produced oxidation intermediates during the phenol CWAO reaction. Samples with higher concentration of carboxylic surface groups, ox/CNFs and ox/CNTs, show less accumulation of refractory short chain acids, like formic, malonic and oxalic acid during the reaction.

Keywords:Catalytic wet air oxidation, Degradation of phenol, Graphite Nanofibres, Nanotubes, Carbocatalysis
logo de CSIC