Preparation and characterization of self-cleaning glass for vehicle with niobia nanosheets.
Self-cleaning glasses were prepared by coating niobia nanosheets and investigated on the performance. The coated glass heated at >450 degrees C had very low turbidity, high hardness, and excellent adhesion properties. Niobia nanosheets ([Nb(3)O(8)](-)) reacted with sodium ions (Na(+)) diffused from the glass into the films to form a crystalline phase of NaNb(3)O(8) and this phase was converted to NaNbO(3) at >450 degrees C. The films exhibited photoinduced hydrophilicity under UV irradiation but low photocatalytic oxidation activity. Excellent self-cleaning ability of the niobia nanosheet coated glass was confirmed by the Taber abrasion test, which is thought to be a candidate as self-cleaning glasses for vehicles.
Katsumata
Ken-ichi
K
Materials and Structures Laboratory, Tokyo Institute of Technology, Midori-ku, Yokohama, Kanagawa 226-8503 Japan. katsumata.k.ab@m.titech.ac.jp
Okazaki
Sohei
S
Cordonier
Christopher E J
CE
Shichi
Tetsuya
T
Sasaki
Takayoshi
T
Fujishima
Akira
A
D000268:Adhesiveness; D002384:Catalysis; D005898:Glass; D006244:Hardness; D006358:Hot Temperature; D007477:Ions; D008855:Microscopy, Electron, Scanning / Q000379:methods; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D009556:Niobium / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry; D010777:Photochemistry / Q000379:methods; D012964:Sodium / Q000737:chemistry; D013696:Temperature
D007477:Ions; D009556:Niobium; D012964:Sodium; D010100:Oxygen