photocatalysis
Technical term in chemistry and materials science; refers to the acceleration of a photoreaction by a catalyst.
See also: 光触媒
Titanium dioxide exhibits photocatalysis.
An air purifier utilizing photocatalysis has been developed.
光触媒 refers to the photocatalyst material itself, while 光触媒作用 refers to the catalytic action or phenomenon.
Compound of 光 (light) + 触媒 (catalyst) + 作用 (action).