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|Title:||Enhancement of photocatalytic activity of P25 TiO2 by vanadium-ion implantation under visible light irradiation|
Visible light irradiation
|Citation:||Zhou, J., Takeuchi, M., Ray, A.K., Anpo, M., Zhao, X.S. (2007-07-15). Enhancement of photocatalytic activity of P25 TiO2 by vanadium-ion implantation under visible light irradiation. Journal of Colloid and Interface Science 311 (2) : 497-501. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jcis.2007.03.007|
|Abstract:||An ion-implantation method was used to prepare V-ion-implanted P25 TiO2 photocatalysts. Their photocatalytic activity for the degradation of formic acid under visible light irradiation (λ > 450 nm) was investigated. Upon implantation of V ions into the lattice of P25 TiO2, the photoactivity was remarkably enhanced. HRTEM images showed that the implanted V ions existed in the form of VO2(T) in the lattice of P25 TiO2. The intensity of photoluminescence (PL) spectra of V-ion-implanted P25 TiO2 decreased with the increase of the amount of implanted V ions, indicating the decrease of electron-hole pair recombination. It was also observed that the lower the PL intensity of V-ion-implanted P25 TiO2, the higher the photoactivity. © 2007 Elsevier Inc. All rights reserved.|
|Source Title:||Journal of Colloid and Interface Science|
|Appears in Collections:||Staff Publications|
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