Preparation and Photocatalytic Activity of Magnetic Fe3O4/SiO2/TiO2 Composites
Figure 6
Digital illumination photographs of Fe3O4/SiO2/TiO2 composites separated from solution by applying an added magnet ((a) 0 min, (b) 1 min, (c) 2 min, and (d) 5 min).