4.6 Article

Photodegradation of Methylene Blue using Nb-doped titania nanotubes with adsorption and photocatalytic properties

Journal

MATERIALS LETTERS
Volume 338, Issue -, Pages -

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ELSEVIER
DOI: 10.1016/j.matlet.2023.134024

Keywords

Heterogeneous photocatalysis; Hydrothermal synthesis; Nb doping; Titania nanotubes; Water treatment

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This study synthesized Nb-doped titania nanotubes (TNTs) and Nb-doped TiO2 nanoparticles for photocatalytic removal of dye wastewater. The Nb-doped TNTs at 6 at.% Nb showed the best performance with a porous network structure composed of nanotubes and nanosheets, demonstrating a large aspect ratio and uniform pore size distribution. They have the potential to become a prominent photocatalyst for water treatment.
The development of materials for the effective photoremoval of contaminants using eco-friendly methods is challenging. This study reports the synthesis of Nb-doped titania nanotubes (TNTs) and Nb-doped TiO2 nano -particles for application in photocatalysis. Their performance was assessed from color removal of Methylene Blue solutions. Morphological characterization showed that Nb-doped TNTs had a porous network structure made up of nanotubes and nanosheets with a large aspect ratio. The lowest pore diameter alongside uniform pore size distribution were obtained with Nb-doped TNTs at 6 at.% Nb, which yielded the highest performance. Nb-doped TNTs may become a prominent photocatalyst for water treatment.

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