TY - JOUR
T1 - Catalytic oxidation of Fe(II) by activated carbon in the presence of oxygen. Effect of the surface oxidation degree on the catalytic activity
AU - Ahumada, E.
AU - Lizama, H.
AU - Orellana, F.
AU - Suárez, C.
AU - Huidobro, A.
AU - Sepúlveda-Escribano, A.
AU - Rodríguez-Reinoso, F.
PY - 2002
Y1 - 2002
N2 - The catalytic oxidation of Fe(II) species in aqueous solution by activated carbons with different degrees of surface oxidation is described. The parent activated carbon was oxidized with aqueous solutions of nitric acid or hydrogen peroxide, and submitted to thermal treatment at 373, 523 and 773 K. The activated carbons prepared were characterized by N2 adsorption and temperature-programmed desorption, and their catalytic behavior was determined by measuring the oxidation rate of Fe(II) to Fe(III) and the generation of hydrogen peroxide. Catalytic activity is a function of the nature of oxygen surface groups generated by oxidation.
AB - The catalytic oxidation of Fe(II) species in aqueous solution by activated carbons with different degrees of surface oxidation is described. The parent activated carbon was oxidized with aqueous solutions of nitric acid or hydrogen peroxide, and submitted to thermal treatment at 373, 523 and 773 K. The activated carbons prepared were characterized by N2 adsorption and temperature-programmed desorption, and their catalytic behavior was determined by measuring the oxidation rate of Fe(II) to Fe(III) and the generation of hydrogen peroxide. Catalytic activity is a function of the nature of oxygen surface groups generated by oxidation.
KW - A. Activated carbon
KW - B. Oxidation
KW - C. Thermal analysis
KW - D. Catalytic properties
UR - https://www.scopus.com/pages/publications/0036406830
U2 - 10.1016/S0008-6223(02)00197-5
DO - 10.1016/S0008-6223(02)00197-5
M3 - Article
AN - SCOPUS:0036406830
SN - 0008-6223
VL - 40
SP - 2827
EP - 2834
JO - Carbon
JF - Carbon
IS - 15
ER -