Removal of Polyvinyl Alcohol Using Photoelectrochemical Oxidation Processes Based on Hydrogen Peroxide Electrogeneration

Figure 5

Effect of UV irradiation and H₂O₂ electrogeneration in photoelectrochemical oxidation of PVA. (PVA = 2 mg L⁻¹, Na₂SO₄ = 0.05 M, pH = 3, oxygen flow rate = 500 cm³ min⁻¹, Na₂SO₄ = 0.05 M, and 𝐼₀=0.45 mW cm⁻²).