Ferroelectric enhancement of the photocatalytic response of Cu- doped TiO2 nanotubes induced through the addition of strontium - Université Claude Bernard Lyon 1 Accéder directement au contenu
Communication Dans Un Congrès Année : 2022

Ferroelectric enhancement of the photocatalytic response of Cu- doped TiO2 nanotubes induced through the addition of strontium

W. Alrashedi
  • Fonction : Auteur
N.S. Alaqeel
  • Fonction : Auteur
H. Kochkar
  • Fonction : Auteur
M. Younas
  • Fonction : Auteur
A. Ben Ali
  • Fonction : Auteur
N.A. Alomair
  • Fonction : Auteur

Résumé

The influence of adding strontium to Cu-doped TiO2 nanotubes (TNT) on the photocatalytic performance of the resulting materials was herein studied considering changes in structural, textural, optical and morphological properties. Results emphasize that up to a Sr loading of 0.8 wt%, the addition of Sr results in in situ formation of Sr-O-Ti entities on the surface of Cu-doped TNT. A direct correlation was observed between the optimized formation of surface Sr-O-Ti entities and an enhanced photocatalytic response due to improved stabilization of photogenerated charges on 0.5Cu-TiNT resulting from the ferroelectric interference of neighbouring SrTiO3 entities. Finally, ferroelectric enhancement of the photocatalytic response induced by Sr was confirmed on similar systems containing graphene oxide.
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Dates et versions

hal-03688846 , version 1 (06-06-2022)

Identifiants

  • HAL Id : hal-03688846 , version 1

Citer

G. Berhault, W. Alrashedi, N.S. Alaqeel, H. Kochkar, M. Younas, et al.. Ferroelectric enhancement of the photocatalytic response of Cu- doped TiO2 nanotubes induced through the addition of strontium. 11th European Conference on Solar Chemistry and Photocatalysis: Environmental Applications (SPEA), Jun 2022, Turin, Italy. ⟨hal-03688846⟩
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