Synthesis and photocatalytic performance of a novel hollow network Fe 3 O 4 /SiO 2 /meso-TiO 2 (FSmT) composite microspheres

The hollow structure of the composite microspheres is a warehouse for methyl orange and the channel of mesoporous TiO2 is as a reactor for photocatalytic reaction. The photocatalytic reaction with TiO2 began as methyl orange in warehouse entered the mesoporous channel. As the reaction continues, more and more methyl oranges enter the pore canal and react successively until the end of the reaction. Mesoporous titanium dioxide provides high specific surface area, and many photocatalytic reaction active sites for the photocatalytic reaction, it improves the photocatalytic efficiency by reducing the combination of the electron and the cavity so the composite microspheres possess high catalytic efficiency.