The sonophotocatalytic degradation of basic blue 9 industrial textile dye has been studied in the presence of ultrasound (20 kHz) over a TiO(2) slurry employing an UV lamp (15 W, 352 nm). It was observed that the color removal efficiency was influenced by the pH of the solution, initial dye concentration and TiO(2) amount. It was found that the dye degradation followed apparent first order kinetics. The rate constant increased by decreasing dye concentration and was affected by the pH of the solution with the highest degradation obtained at pH 7. The first order rate constants obtained with sonophotocatalysis were twofold and tenfold than those obtained under photocatalysis and sonolysis, respectively. The chemical oxygen demand was abated over 80%.

One of the most widely used antibiotics is amoxicillin (AMX), which is the most widely used in humans and animals, but it is discharged metabolically due to its indigestibility. Conventional biological and physicochemical methods for removing AMX from water are not enough to mineralize it, only it is concentrated and transferred to produce new residues that require further processing to remove the new residues.In this research, naked and modi ed surfaces with TiO 2 nanotubes (TiO 2,nt ) electrophoretically modi ed with PbO 2 , IrO 2 , RuO 2 , and Ta 2 O 5 were used to evaluate their e ciency in the electrochemical degradation of AMX in acid media (0.1 mol L − 1 H 2 SO 4 ). After their comparison, Pb-Ta 50:50|TiO 2,nt |Ti showed the highest removal e ciency of AMX (44.71 %) with the lowest speci c energy consumption (8.69 ± 0.78 kWh Kg COD − 1 ), and the average instant current e ciency of 26.67 ± 9.19 %, in comparison with the others naked and modi ed surfaces of TiO 2,nt |Ti.

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One of the most widely used antibiotics is amoxicillin (AMX), which is the most widely used in humans and animals, but it is discharged metabolically due to its indigestibility. Conventional biological and physicochemical methods for removing AMX from water are not enough to mineralize it, only it is concentrated and transferred to produce new residues that require further processing to remove the new residues.In this research, naked and modified surfaces with TiO2 nanotubes (TiO2,nt) electrophoretically modified with PbO2, IrO2, RuO2, and Ta2O5 were used to evaluate their efficiency in the electrochemical degradation of AMX in acid media (0.1 mol L− 1 H2SO4). After their comparison, Pb-Ta 50:50|TiO2,nt|Ti showed the highest removal efficiency of AMX (44.71 %) with the lowest specific energy consumption (8.69 ± 0.78 kWh Kg COD− 1), and the average instant current efficiency of 26.67 ± 9.19 %, in comparison with the others naked and modified surfaces of TiO2,nt|Ti.