This chapter pivots on Ce-based catalysts’ employment in numerous
catalytic applications glancing at the foremost commercial technologies due to their
high abundance in the earth's crust. Ceria - CeO2
is considered the most stable oxide
which confirms that Ce3+ prefers the oxidation state than the Ce4+ oxidation state. This
is also known as oxygen - storage capacity. CeO2
shows good photocatalytic activity.
This chapter explores the important properties of Ce and CeO2
with a comparison of
their bulk properties with their properties at the nanoscale. Further, different synthesis
processes of Ce and CeO2
nanoparticles have been discussed. Later, the chapter
addresses the mechanism of photocatalysis using CeO2
nanoparticles. Further, the
chapter discusses applications and studies of doped CeO2
based photocatalysts, and we
will try to display a brief rundown of emerging technologies in the ongoing field to
encourage further reading.
Keywords: Cerium, Cerium-oxide, Heterogeneous photocatalysis, Photocatalysis, Waste water treatment, Water-splitting.
