Preparation of Cerium Modified Titanium Dioxide Nanoparticles and Investigation of Their Visible Light Photocatalytic Performance

Figure 3

TEM images of (a) NTA; (b) NTA ion-exchanged with Ce(NO₃)₃; (c) 0.1% Ce/TiO₂ nanoparticles after hydrothermal method; (d) 0.1% Ce/TiO₂ nanoparticles after calcination.

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