| Titre : | Facile method for fabricating boron-doped TiO2 nanotube array with enhanced photoelectrocatalytic properties (2008) |
| Auteurs : | Jingyuan Li, Auteur ; Na Lu, Auteur ; Xie Quan, Auteur ; Shuo Chen, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 47 n°11, Juin 2008) |
| Article en page(s) : | p. 3804–3808 |
| Note générale : | Bibliogr. p. 3807-3808 |
| Langues : | Anglais |
| Tags : | TiO2 nanotube arrays ; Electrodeposition method ; X-ray diffraction |
| Résumé : | Highly ordered boron-doped TiO2 nanotube arrays were fabricated via a facile electrodeposition method. X-ray photoelectron spectroscopy (XPS) analysis revealed incorporated B atoms in the lattice of a TiO2 nanotube array. The X-ray diffraction (XRD) spectrum indicated improved crystallinity of boron-doped TiO2 nanotube arrays, relative to undoped TiO2 nanotube arrays. A shift of the absorption edge toward the visible region and a new absorption shoulder (380–510 nm) of boron-doped TiO2 nanotube arrays were observed via diffuse reflectance spectroscopy (DRS). In photoelectrochemical measurements, under either ultraviolet (UV) or visible-light irradiation, the photocurrent conversion efficiency was enhanced because of boron doping. The photoelectrocatalysis of phenol under simulated solar irradiation was performed using boron-doped or undoped TiO2 nanotube arrays, and the kinetic constant of a boron-doped TiO2 nanotube array photoelectrode was increased by ca. 28%, compared to that of an undoped TiO2 nanotube array photoelectrode. |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie0712028 |
