fig5

Figure 5. UV-visible absorption spectra of different components in LTZO sol (A) and UV diffuse reflectance spectra of as-dried and 200 °C-treated 0.15LTZO and UV-0.15LTZO (B). SEM images of 0.15LTZO and UV-0.15LTZO intermediate phase after heating at 300 °C (C and D). TG and DSC curves of 0.15LTZO and UV-0.15LTZO (E). XRD patterns of LTO treated at different temperatures (F). Schematic comparison of the microscopic mechanisms of the photothermal decomposition process and the traditional process (G).