Research Letter

Pt/ T i O 2 Coupled with Water-Splitting Catalyst for Organic Pollutant Photodegradation: Insight into the Primary Reaction Mechanism

Table 1

Rate constants for SA photodegradation with different composited catalysts. Catalyst: 0.0500 g, the rate of NiO/NaTaO3:La to Pt/TiO2 (or TiO2) is 25 wt%. reactant solution: 120 mL SA ( 5 × 1 0 4  mol L-1), with two 254 nm UV lamps irradiation.

Photocatalystk (min-1)

Pt/TiO20.00308
NiO/NaTaO3:La-Pt/TiO20.00429
TiO20.00289
NiO/NaTaO3:La-TiO20.00286
NiO/Ta2O5-Pt/TiO20.00267
NiO/Sr2Ta2O7-Pt/TiO20.00415