INVESTIGADORES
AYUDE Maria alejandra
congresos y reuniones científicas
Título:
Prussian Blue onto Activated Carbon as a Catalyst for Heterogeneous Fenton-Like Processes
Autor/es:
LUCILA DOUMIC; GABRIEL SALIERNO; MIRYAN C. CASSANELLO; PATRICIA M. HAURE; M.ALEJANDRA AYUDE
Reunión:
Conferencia; International Conference on Chemical Engineering and Applications (CCEA); 2013
Resumen:
The main goal of this contribution is the
development of a new heterogeneous Fenton-like oxidation
system based on Prussian Blue supported over a commercially
available granular activated carbon (GAC). The catalysts were
prepared following basically three different approaches: (i)
Prussian Blue (Fe3[Fe(CN)6]2) particles adsorbed onto the GAC
by impregnation, (ii) Prussian Blue nanoparticles (PBNP)
prepared ex-situ and adsorbed onto the GAC; and (iii) PBNP
prepared in-situ onto the GAC. The catalysts were
characterized by SEM, EDS, BET surface area and Fe content.
Their performance in the catalytic wet peroxide oxidation of a
model azo dye, Orange G, was tested in a batch lab-scale stirred
reactor. Activity and stability runs were carried out and
analyzed in terms of dye discoloration, Total Organic Carbon
removal, UV-vis spectra and degree of iron leaching.