The formation of CuAl2O4 requires high processing temperature (T > 600 °C). In the present study, single phase CuAl2O4 thin film with porous microstructure was successfully synthesized at a low temperature of 400 °C using ultrasonic spray pyrolysis method. The FTIR result confirmed the presence of Cu–O and Al-O vibration from spinel CuAl2O4. The CuAl2O4 thin film with bandgap of 2.4 eV showed a good photocatalytic characteristic in decomposing methylene blue dye with efficiency of above 80% under solar irradiation for 3 hours.
|Publication status||Published - 15 Mar 2022|
- Organic dye
- Thin Film
- Ultrasonic spray pyrolysis