| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1543641 | Physica E: Low-dimensional Systems and Nanostructures | 2016 | 5 Pages |
•The electrochemical doping strategy was proposed to fabricate non-metal doped TiO2NT.•Non-metal doped TiO2 nanotubes generate higher photocurrents.•The bandgap energy of all doped materials was decreased when compared to pure titania.
Titanium dioxide is a well-known photoactive semiconductor with a variety of possible applications. The procedure of pollutant degradation is mainly performed using TiO2 powder suspension. It can also be exploited an immobilized catalyst on a solid support. Morphology and chemical doping have a great influence on TiO2 activity under illumination. Here we compare photoactivity of titania nanotube arrays doped with non-metal atoms: nitrogen, iodine and boron applied for photodegradation of organic dye - methylene blue and terephtalic acid. The doped samples act as a much better photocatalyst in the degradation process of methylene blue and lead to the formation of much higher amount of hydroxyl radicals (•OH) than undoped TiO2 nanotube arrays. The use of a catalyst active under solar light illumination in the form of thin films on a stable substrate can be scaled up for an industrial application.
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