Photocatalytic Degradation of 2,4-Dichlorophenol Using Nanosized Na₂Ti₆O₁₃/TiO₂ Heterostructure Particles

Figure 4

Schematic representation of the crystal structure of Na₂Ti₆O₁₃ along 𝑎-axis [31] (octahedral: Ti–O₆; spheres: Na).