Research Article
Nitrogen-Doped TiO2 Nanotube Arrays with Enhanced Photoelectrochemical Property
Table 2
Results of the orthogonal experiment.
| | No. | () Electrolyte concentration () | () Reaction voltage () | () Reaction time () | Photocurrent enhancement ratio (%) |
| | 1 | 0.5 | 1 | 1 | 9.0 | | 2 | 0.5 | 2 | 2 | 11.5 | | 3 | 0.5 | 3 | 3 | 30.0 | | 4 | 1 | 1 | 2 | 16.0 | | 5 | 1 | 2 | 3 | 13.2 | | 6 | 1 | 3 | 1 | 18.5 | | 7 | 1.5 | 1 | 3 | 9.0 | | 8 | 1.5 | 2 | 1 | 6.2 | | 9 | 1.5 | 3 | 2 | 25.9 | | 16.8 | 11.3 | 11.2 | | | 15.9 | 10.3 | 17.8 | | | 13.7 | 23.0 | 17.4 | | | 3.1 | 12.7 | 6.6 | |
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