Layer-by-Layer Self-Assembled Metal-Ion- (Ag-, Co-, Ni-, and Pd-) Doped TiO_𝟐 Nanoparticles: Synthesis, Characterisation, and Visible Light Degradation of Rhodamine B

Figure 5

Number of PAH(PSS/m-TiO₂)_n bilayers versus film thickness (n = 1, 3, 5, and 10).