1 research outputs found
Vermiculite-based catalysts for oxidation of organic pollutants in water and wastewater
In presented work natural expanded vermiculite was used as a
starting material for synthesis of
Fe-doped cataly
sts. Material
was modified with increasing amount of Fe by ion-exchange
and precipitation of iron
oxide. Composite materials were
characterized with respect to their stru
cture (X-ray diffraction, Infrared spectra
using Diffuse Reflectance), agglomeratio
n
state of Fe (Ultraviolet-Visible spectra using Diffuse
Reflectance) and chemical composition. Activity in H
2
O
2
decomposition
as well as in phenol oxidation was studied
in liquid phase at atmosphe
ric pressure and temperature
up to 70 °C. It was shown
that doping with Fe increases ca
talytic activity. However, excess of iron result
ed in formation of undesired side-products