the National Natural Science Foundation of China (Grant No. 20477009);the Natural Science Foundation of Hebei Province (Grant No. E2005000183)
Influences of α-MnO2, β-MnO2, and δ-MnO2 on the photocatalytic activity of Degussa P-25 TiO2 have been investigated through the photocatalytic degradation of methyl orange. The TiO2 photocatalyst, before and after ...