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 AFoaming agent BFoaming agent C

TypeSynthesisSynthesisVegetable
pH6∼86∼86∼8
ColorsLight tintLight tintBitumen
Specific gravity1 ± 0.51 ± 0.51 ± 0.5
Density (g/cm3)1.141.022.7