Research Article
Production and Evaluation of Porous Photocatalyst Concrete Filter (deNOx PCF) for NOx Reduction
Table 1
Types and properties of foaming agents.
| | Foaming agent A | Foaming agent B | Foaming agent C |
| Type | Synthesis | Synthesis | Vegetable | pH | 6∼8 | 6∼8 | 6∼8 | Colors | Light tint | Light tint | Bitumen | Specific gravity | 1 ± 0.5 | 1 ± 0.5 | 1 ± 0.5 | Density (g/cm3) | 1.14 | 1.02 | 2.7 |
|
|