Photooxidation Contribution Study on the Decomposition of Azo Dyes in Aqueous Solutions by VUV-Based AOPs

Table 3

The 𝑘_app (min⁻¹) values at different pH in both VUV/TiO₂ and VUV/TiO₂/H₂O₂ process.

	𝑘 app
	Acid Orange 8		Acid Blue 29		Acid Blue 113
pH	VUV/TiO2	VUV/TiO2/H2O2	VUV/TiO2	VUV/TiO2/H2O2	VUV/TiO2	VUV/TiO2/H2O2
3	0.0148	0.0120	0.0086	0.0115	0.2469	0.2729
5	0.0151	0.0108	0.0065	0.0079	0.0324	0.0248
7	0.0141	0.0103	0.0044	0.0033	0.0068	0.0064
9	0.0129	0.0091	0.0044	0.0027	0.0061	0.0065
11	0.0096	0.0075	0.0044	0.0037	0.0060	0.0062