degradation. It can be found that the activity of MO
degradation is in the order of 50%TiO2/MC-450 >
70%TiO2/MC-450 > 30%TiO2/MC-450 > 10%TiO2/MC-450 >
TiO2. Such results indicate that MO conversion increases with
increasing TiO2 content of the nanocomposites except for
70%TiO2/MC-450, and the conversion of MO by
50%TiO2/MC-450 could reach 89% after UV irradiation for
75 min. The activity reduction of 70%TiO2/MC-450 compared
with that of 50%TiO2/MC-450 might be ascribed to the
decrease of surface area. 10%TiO2/MC-450 showed a low
photocatalytic activity, and this might be caused by the limited
TiO2 loaded on the surface of MC. In this case, the
photocatalytic reaction could hardly be driven by UV light and
the removal of MO is mainly caused by adsorption.