Simultaneous Decolorization of Tartrazine and Production of H2 in a Combined Electrocoagulation and Photocatalytic Processes using CuO-TiO2 Nanotube Arrays: Literature Review and Experiment

We reported the simultaneous decolorization of tartrazine and H2 production via electrocoagulation photocatalysis using CuO-doped TiO2 nanotube arrays (TNTA) composites. Tartrazine was removed by combination adsorption, electrocoagulation, photocatalytic degradation, while produced through water reduction at cathode splitting process on photocatalyst surface. The photoreactor contains CuO-TNTA as a is equipped with an 80-W UV lamp. Deposition CuO TNTA conducted successive ionic layer adsorption reaction (SILAR) method. nanotubular well distribution were evaluated employing FESEM HRTEM. XRD patterns confirmed weak diffraction revealing anatase crystallite phase. band gap also found to be redshifted from that pure TNTA. processes combined systems (20 V, pH = 11) managed remove 80% producing high yield (1.84 mmol), significantly higher than those obtained each process.