Changes in surface chemistry of activated carbons by wet oxidation

C Moreno-Castilla, MV López-Ramón… - Carbon, 2000 - Elsevier
A series of activated carbons with different degrees of activation were oxidized with
H2O2,(NH4) 2S2O8 and HNO3 in order to introduce different oxygen surface complexes …

[HTML][HTML] Oxidation of activated carbon by dry and wet methods: Surface chemistry and textural modifications

J Jaramillo, PM Álvarez, V Gómez-Serrano - Fuel Processing Technology, 2010 - Elsevier
The effects of dry and wet oxidation treatments of activated carbon (AC) on the surface
chemistry and porous structure are studied. Using cherry stones (CS), AC was first prepared …

Activated carbon surface modifications by nitric acid, hydrogen peroxide, and ammonium peroxydisulfate treatments

C Moreno-Castilla, MA Ferro-Garcia, JP Joly… - Langmuir, 1995 - ACS Publications
A series of activated carbons with different degrees of activation was treated with HNO3,
H2O2, and (NH4) 2S20s in order to introduce oxygen surface complexes. The effects of the …

The effect of the gradual thermal decomposition of surface oxygen species on the chemical and catalytic properties of oxidized activated carbon

GS Szymański, Z Karpiński, S Biniak, A Świa̧tkowski - Carbon, 2002 - Elsevier
The physicochemical properties, surface chemical structure and some catalytic properties of
a series of carbons prepared by nitric acid oxidation of an activated carbon and subsequent …

Effect of surface chemistry on sorption of water and methanol on activated carbons

TJ Bandosz, J Jagiełło, JA Schwarz, A Krzyzanowski - Langmuir, 1996 - ACS Publications
Two activated carbons from different sources were oxidized with nitric acid and hydrogen
peroxide and the effects of this on their porous structure and sorption of water and methanol …

On the modification and characterization of chemical surface properties of activated carbon: in the search of carbons with stable basic properties

JA Menéndez, J Phillips, B Xia, LR Radovic - Langmuir, 1996 - ACS Publications
Differences between the surface chemical properties of hydrogen-and nitrogen-treated
samples of an activated carbon were quantified using several complementary techniques …

The creation of acid carbon surfaces by treatment with (NH4) 2S2O8

C Moreno-Castilla, F Carrasco-Marín, A Mueden - Carbon, 1997 - Elsevier
Two activated carbons with different degree of activation, 20 and 46% burn-off, were
obtained from olive stones by steam activation. These samples were oxidized with a …

Study of water adsorption on activated carbons with different degrees of surface oxidation

II Salame, TJ Bandosz - Journal of colloid and interface science, 1999 - Elsevier
A carbon of wood origin was oxidized with different oxidizing agents (nitric acid, hydrogen
peroxide, and ammonium persulfate). The microstructural properties of the starting material …

The effect of H2 treatment on the activity of activated carbon for the oxidation of organic contaminants in water and the H2O2 decomposition

LCA Oliveira, CN Silva, MI Yoshida, RM Lago - Carbon, 2004 - Elsevier
In this work, hydrogen peroxide reactions, ie H2O2 decomposition and oxidation of organics
in aqueous medium, were studied in the presence of activated carbon. It was observed that …

Effects of non-oxidant and oxidant acid treatments on the surface properties of an activated carbon with very low ash content

C Moreno-Castilla, F Carrasco-Marin… - Carbon, 1998 - Elsevier
An activated carbon obtained from olive stones and with very low ash content (0.10%) was
treated with either HCl, HF or HNO3. The changes in surface area and porosity resulting …