Table 3.
Performance evaluation of thermal spray-synthesized photocatalytic materials according to ISO 22197–2, and acetaldehyde removal performance when humidification and heating conditions were added to ISO 22197–2. Note: RH denotes relative humidity.
| Sample | ISO 22197-2 |
High %RH |
High %RH with Heating |
||||||
|---|---|---|---|---|---|---|---|---|---|
| Removal | %RH | Temp. | Removal | %RH | Temp. | Removal | %RH | Temp. | |
| P25 | 59.7% | 50% | 25 °C | 38.1% | 82% | 25 °C | 58.8% | 82% | 40 °C |
| TiO2 | 73.4% | 50% | 25 °C | 59.2% | 80% | 25 °C | 75.3% | 80% | 40 °C |
| Fe3O4/TiO2 | 78.1% | 50% | 25 °C | 67.6% | 82% | 25 °C | 77.7% | 81% | 46 °C |
| Cu2O/TiO2 | 74.2% | 45% | 25 °C | 46.2% | 70% | 25 °C | 69.0% | 71% | 39 °C |
| WO3/TiO2 | 75.4% | 50% | 25 °C | 66.2% | 81% | 25 °C | 76.7% | 81% | 40 °C |