Catalytic oxidation of Fe(II) by activated carbon in the presence of oxygen. Effect of the surface oxidation degree on the catalytic activity

E. Ahumada; H. Lizama; F. Orellana; C. Suárez; A. Huidobro; A. Sepúlveda-Escribano; F. Rodríguez-Reinoso

doi:10.1016/S0008-6223(02)00197-5

Catalytic oxidation of Fe(II) by activated carbon in the presence of oxygen. Effect of the surface oxidation degree on the catalytic activity

E. Ahumada
, H. Lizama
, F. Orellana
, C. Suárez
, A. Huidobro
, A. Sepúlveda-Escribano
, F. Rodríguez-Reinoso^*

^*Corresponding author for this work

Pontificia Universidad Católica de Valparaíso
University of Alicante

Research output: Contribution to journal › Article › peer-review

64 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	2827-2834
Number of pages	8
Journal	Carbon
Volume	40
Issue number	15
DOIs	https://doi.org/10.1016/S0008-6223(02)00197-5
Publication status	Published - 2002
Externally published	Yes

Keywords

A. Activated carbon
B. Oxidation
C. Thermal analysis
D. Catalytic properties

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10.1016/S0008-6223(02)00197-5

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title = "Catalytic oxidation of Fe(II) by activated carbon in the presence of oxygen. Effect of the surface oxidation degree on the catalytic activity",

abstract = "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.",

keywords = "A. Activated carbon, B. Oxidation, C. Thermal analysis, D. Catalytic properties",

author = "E. Ahumada and H. Lizama and F. Orellana and C. Su{\'a}rez and A. Huidobro and A. Sep{\'u}lveda-Escribano and F. Rodr{\'i}guez-Reinoso",

year = "2002",

doi = "10.1016/S0008-6223(02)00197-5",

language = "English",

volume = "40",

pages = "2827--2834",

journal = "Carbon",

issn = "0008-6223",

publisher = "Elsevier Ltd.",

number = "15",

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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 -

Catalytic oxidation of Fe(II) by activated carbon in the presence of oxygen. Effect of the surface oxidation degree on the catalytic activity

Abstract

Keywords

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