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Fig. 7

Lattice parameters of Zn0_97Fe0_03O nanoparticles calcined at 450 °C, 600 °C and 750 °C_
| Calcination temperature [°C] | Crystallite size D [nm] | d101[λ] | Lattice constant | |
|---|---|---|---|---|
| a [Å] | c [Å] | |||
| 450 | 29 nm | 2.4887 | 3.248 | 5.305 | 
| 600 | 32 nm | 2.4861 | 3.245 | 5.300 | 
| 750 | 38 nm | 2.4834 | 3.241 | 5.294 | 
EDAX data of pure ZnO nanoparticles_
| Calcination temperature [°C] | Zn [%] | O [%] | 
|---|---|---|
| 450 | 92.01 | 7.99 | 
| 600 | 91.69 | 8.31 | 
| 750 | 91.51 | 8.49 | 
Optical parameters of pure ZnO nanoparticles calcined at 450 °C, 600 °C and 750 °C_
| Calcination temperature [°C] | Absorption wavelength λ [nm] | Band gap energy (Eg = hc/λ) [eV] | 
|---|---|---|
| 450 | 388 | 3.20 | 
| 600 | 392 | 3.17 | 
| 750 | 398 | 3.12 | 
Magnetic properties of Zn0_97Fe0_03O nanoparticles_
| Zn0:97Fe0:03O [°C] | Coercivity Hc (Oe) | Remanent magnetization Mr [emu/g] | Magnetization saturation Ms [emu/g] | 
|---|---|---|---|
| 450 | 15 Oe | 3.05 × 10–4 | 0.234 | 
| 600 | 42 Oe | 3.75 × 10–4 | 0.027 | 
| 750 | 363 Oe | 16.9 × 10–4 | 0.006 | 
Lattice parameters of pure ZnO nanoparticles calcined at 450 °C, 600 °C and 750 °C_
| Calcination temperature [°C] | Crystallite size D [nm] | d101 [λ] | Lattice constant | |
|---|---|---|---|---|
| a [Å] | c [Å] | |||
| 450 | 31 nm | 2.4874 | 3.247 | 5.303 | 
| 600 | 33 nm | 2.4854 | 3.244 | 5.299 | 
| 750 | 42 nm | 2.4881 | 3.248 | 5.304 | 
Optical parameters of Zn0_97Fe0_03O nanoparticles calcined at 450 °C, 600 °C and 750 °C_
| Calcination temperature [°C] | Absorption wavelength λ [nm] | Band gap energy (Eg = hv/λ) [eV] | 
|---|---|---|
| 450 | 384 | 3.23 | 
| 600 | 389 | 3.19 | 
| 750 | 395 | 3.15 |