Preparation of N-Doped TiO<sub>2</sub>-ZrO<sub>2</sub> Composite Films under Electric Field and Heat Treatment and Assessment of Their Removal of Methylene Blue from Solution

<table>X-ray diffraction patterns of the composite film annealed at 500°C for 1 h: (a) 0 V and (b) 6000 V/cm.</table>

Advances in Materials Science and Engineering

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Figure 2

Figure 2: Preparation of N-Doped TiO<sub>2</sub>-ZrO<sub>2</sub> Composite Films under Electric Field and Heat Treatment and Assessment of Their Removal of Methylene Blue from Solution 

Figure 2 | Preparation of N-Doped TiO2-ZrO2 Composite Films under Electric Field and Heat Treatment and Assessment of Their Removal of Methylene Blue from Solution 