Assertion: titanium dioxide | /r/HasProperty | discovered by honda
Facets:
value: in the year
type: TEMPORAL
Source sentences:
text: Titanium dioxide (TiO 2 ) was discovered by Honda and Fujishima in the year 1971 and was first used for the photooxidation of water.1 TiO 2 has since been widely applied in photocatalysis for environmental cleanup, solar cells, clean H 2 energy production and antibacterial purposes.2