Synthesis of Core-Shell Fe_𝟑O_𝟒@SiO_𝟐@TiO_𝟐 Microspheres and Their Application as Recyclable Photocatalysts

Figure 4

Time-dependent absorption spectra of a methyl orange aqueous solution (0.01 g L⁻¹, pH = 3) in the presence of Fe₃O₄@SiO₂@TiO₂ composites under exposure to UV light.