Research Article
Preparation of Improved p-n Junction NiO/TiO2 Nanotubes for Solar-Energy-Driven Light Photocatalysis
Table 2
Lattice parameters for TNTs and NiO/TNTs samples with different concentrations.
| Sample | Crystallite size (nm)a | Cell parameters (Å)b |
| TNTs | 33.81 | 3.7868, 9.5102 | NiO/TNTs (0.5 M) | 34.54 | 3.7828, 9.5184 | NiO/TNTs (2.5 M) | 34.10 | 3.7872, 9.5438 |
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aMeasured by Scherrer’s equation.
bEstimated according to (2) and (3).
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