1. Principle of photocatalysis
1.1 Definition
Ethymologically, the term photocatalysis is derived from three Greek words: phôtos (light), kata (down or back) and lysis (dissolution or decomposition).
Photocatalysis is therefore the action of a substance called a "photocatalyst" which, under the action of light, increases the speed of a thermodynamically possible chemical reaction without intervening in the reaction's balance equation.
Nowadays, the term "photocatalysis" refers more specifically to "heterogeneous photocatalysis" in which the photocatalyst is a semiconductor (most often titanium dioxide, TiO 2 ), not a transition metal molecule or complex.
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
Principle of photocatalysis
Characteristics of the most widely used photocatalyst: titanium dioxide
Article included in this offer
"Eco-design and sustainable innovation"
(
136 articles
)
Updated and enriched with articles validated by our scientific committees
A set of exclusive tools to complement the resources
Bibliography
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
