Photocatalyst made of metal oxynitride having responsibility of visible light
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United States of America Patent
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Apr 12, 2005
Grant Date -
Oct 17, 2002
app pub date -
Apr 16, 2002
filing date -
Aug 28, 2000
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Abstract
A photo-catalyst comprising of oxynitride of at least one transition metal and oxynitride of transition metal further containing at least one element selected from the group consisting of alkali, alkali earth and IIIB group. Especially, the transition metal contained in said photo-catalyst comprising of oxynitride of transition metal is selected from the group consisting of La, Ta, Nb, Ti and Zr, and further containing metal is selected from the group consisting of Ca, Sr, Ba, Na, K and Rb. Desirably, a promoter comprising Pt or Ni is loaded on said oxynitride of transition metal.
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