Photocatalytic oxidation is an advanced oxidation process for
removal of trace contaminants and microbial pathogens. It is
a useful pretreatment for hazardous and non-biodegradable
contaminants to enhance their biodegradability. Photocatalysis
can also be used as a polishing step to treat recalcitrant
organic compounds. The major barrier for its wide
application is the slow kinetics due to limited light fluence and
photocatalytic activity. Current research focuses on
increasing photocatalytic reaction kinetics and photoactivity
range