To improve the photocatalysis and absorbability of nanometer TiO2 particles, TiO2/MnO2 and TiO2/Mn3O4 composite particles in micrometer were prepared by template method. The morphologies and structure of the composite particles were characterized by SEM and XRD. The photocatalytic abilities and absorbability of alizarin red and methyl orange solution have been tested. The results show that the composite particles have exc...