Photocatalytic Degradation of Methyl Violet with TiSiW₁₂O₄₀/TiO₂

Table 1

Comparison of photocatalytic activity of catalysts.

Type of catalyst	Catalyst dosage	Reaction conditions	Degradation rate
Co-SBA-15	1 g/L	Initial concentration 50 mg/L, within 150 min of solar light irradiation	61%
Fe-doped anatase TiO2	0.18 g	Initial concentration 4 mg/L, pH is 5.5, within 4 h visible light	59.4%
TiO2	0.3 g	Initial concentration 20 mg/L, pH is 5.5, within 3 h simulated natural light irradiation	58.8%
H4SiW12O40	0.3 g	Initial concentration 20 mg/L, pH is 5.5, within 3 h simulated natural light irradiation	21.5%
TiSiW12O40/TiO2	0.3 g	Initial concentration 20 mg/L, pH is 5.5, within 3 h simulated natural light irradiation	82.4%