Research Article
Development of Photocatalytic Active TiO2 Surfaces by Thermal Spraying of Nanopowders
Table 1
Phases and crystallites size in the thermal sprayed coatings.
| | Ref. TiO2 coating | Anatase (vol.%) | Anatase crystallites average size (nm) | Rutile crystallites average size (nm) | Observations (other phases) |
| | ST01-APS | 10.9–12.2 | 19.2–34.8 | 67.0–78.6 | Traces of Magnéli phases (Ti3O5; Ti6O11) | | ST01-WSC* | >
96.0 | 7.0–7.3 | 0–25.1 | — | | ST01-HVOF | 12.6 | 80.0 | 90.0 | — | | P25-WSC | 77.6–81.4 | 27.1–29.2 | 51.7–60.5 | — | | P25-ASC** | 23.0 | 46.0 | 120.0 | — | | PC105-WSC | 91.9–95.1 | 34.9–38.7 | 140.9–194.9 | — | | PC105-ASC | 36.2 | 151.1 | 99.2 | — |
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*WSC-coating resulted from plasma spraying of aqueous suspension.**ASC-coating resulted from plasma spraying of alcoholic suspension.
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