Table 2 Photocatalytic efficiency and rate constant of the Rh B decomposition process in the presence of Bi₂WO₆, Ag₂S, and Bi₂WO₆/Ag₂S

Bi₂WO₆

67.5

1.318 × 10⁻²

Ag₂S

11.8

1.390 × 10⁻³

Blank

1.7

1.860 × 10⁻⁴

Bi₂WO₆/Ag₂S

84.6

2.079 × 10⁻²