What is the mechanism of photocatalytic dye degradation over TiO2?
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The mechanism of photocatalytic dye degradation over TiO2 involves various factors such as surface area, distribution of TiO2, and the presence of other materials like reduced graphene oxide (rGO) or kaolinite. TiO2 composites like TiO2/rGO and TiO2-AKC exhibit enhanced photocatalytic activity due to improved surface area and efficient distribution of TiO2 nanoparticles . Incorporating materials like polyaniline (PANI) into TiO2 synthesis results in porous structures with increased porosity, leading to high photocatalytic efficiency . Additionally, TiO2 nanoparticles deposited on nanofiltration membranes show promising photocatalytic activity for dye degradation, following a pseudo-second-order kinetics model . Pure rutile TiO2 and silver-modified TiO2 demonstrate effective dye degradation under visible light irradiation, showcasing improved catalytic activity .
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1 Citations | The mechanism involves visible light irradiation activating TiO2, leading to electron-hole pairs generation, which react with dye molecules, degrading them effectively, as shown in the study. |
1 Citations | The photocatalytic dye degradation over TiO2 involves TiO2 nanoparticles deposited on nanofiltration membranes, leading to efficient degradation of methyl orange through a pseudo-second-order kinetics model. |
| The mechanism of photocatalytic dye degradation over TiO2 involves first order kinetics, parabolic diffusion, and modified Freundlich model, as observed in TiO2-activated kaolinite composite for Rhodamine B degradation. | |
1 Citations | The photocatalytic dye degradation over TiO2 involves structural porosity and synergistic effects of PANI, enhancing efficiency. The mechanism includes surface interactions and increased quantum yield for degradation. |
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