be much more effective on Cu–titania catalysts. The
XPS spectra revealed that the copper species were predominantly
Cu2O and only a minor amount of Cu0.
Other investigators also noted that addition of copper
could improve the photocatalytic activity in CO2 reduction,
without exactly noticing in which species they are
present [3,6]. It is therefore important to investigate
how and which copper species (Cu0, CuI , or CuII) has
a significant contribution in improving the CO2 photocatalytic
reduction over TiO2 matrix.
In this paper we will report our preliminary results on
such attempt. A modified preparation method has been
conducted to synthesize a Cu0/TiO2, CuI/TiO2 and CuII/
TiO2 catalysts. Characteristics of the catalysts were
investigated by XRD, UV–vis diffuse reflectance spectroscopy
(DRS), SEM/EDAX/Mapping, BET and
AAS. Activity test of the catalysts was conducted to reduce
CO2 in a batch slurry photo reactor accomplished
with UV black light lamps
be much more effective on Cu–titania catalysts. The
XPS spectra revealed that the copper species were predominantly
Cu2O and only a minor amount of Cu0.
Other investigators also noted that addition of copper
could improve the photocatalytic activity in CO2 reduction,
without exactly noticing in which species they are
present [3,6]. It is therefore important to investigate
how and which copper species (Cu0, CuI , or CuII) has
a significant contribution in improving the CO2 photocatalytic
reduction over TiO2 matrix.
In this paper we will report our preliminary results on
such attempt. A modified preparation method has been
conducted to synthesize a Cu0/TiO2, CuI/TiO2 and CuII/
TiO2 catalysts. Characteristics of the catalysts were
investigated by XRD, UV–vis diffuse reflectance spectroscopy
(DRS), SEM/EDAX/Mapping, BET and
AAS. Activity test of the catalysts was conducted to reduce
CO2 in a batch slurry photo reactor accomplished
with UV black light lamps
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