| 摘要 |
PURPOSE:To increase decomposition activity for water of RuO2/BaTi4O9 photocatalyst by depositing specified oxide or a mixture of oxides on a barium titanate into which specified elements are introduced. CONSTITUTION:This photocatalyst is obtd. by carrying single oxide of ruthenium oxide (RuO2), iridium oxide (IrO2), or tantalum oxide (Ta2O5) or mixture of at least two compds. of these on a barium titanate into which one of rare earth elements, alkali earth elements and titanium group elements is introduced. The figure shows changes in the catalytic activity of a photocatalyst RuO2/ Ba1-xLaxTi4O9 carrying ruthenium oxide (RuO2) by 1wt.% ruthernium (Ru) to the amt. of lantalum (La) intorudced to the carrier. In the range of X=0.05 to 0.25wt.% increase in the activity is obtd., and when X=0.1wt.%, 24% increase in the activity is obtd. compared with a photocatalyst RuO2/BaTi4O9. |
