Intrinsic AuPt-alloy particles decorated on TiO2 nanotubes provide enhanced photocatalytic degradation

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

12 Scopus Citations
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Author(s)

  • Beatriz Eugenia Sanabria-Arenas
  • Anca Mazare
  • Jeongeun Yoo
  • Nhat Truong Nguyen
  • Seyedsina Hejazi
  • And 4 others
  • Haidong Bian
  • Maria Vittoria Diamanti
  • Maria Pia Pedeferri
  • Patrik Schmuki

Detail(s)

Original languageEnglish
Pages (from-to)865-870
Journal / PublicationElectrochimica Acta
Volume292
Online published2 Oct 2018
Publication statusPublished - 1 Dec 2018

Abstract

In this study we investigate the performance of noble metal co-catalysts on anodic TiO2 nanotubes for the photocatalytic degradation of a model pollutant. We create the noble metal decoration (nanoparticles of Au, Pt and mixed AuPt) intrinsically and extrinsically. Intrinsic decoration is achieved using a noble metal containing titanium alloy for anodic tube growth. Extrinsic decoration is carried out by physical vapor deposition (PVD) of the same noble elements on pure titania tubes. We find the AuPt intrinsic decoration to provide a significant enhancement for the photocatalytic decomposition of the model pollutant acid orange 7 (AO7) due to a synergistic effect in the formed AuPt alloy. The AuPt alloy provides a photocatalytic activity that is higher than comparable extrinsic decoration or single element (Pt or Au) intrinsic decoration.

Research Area(s)

  • AuPt alloy, Dye degradation, Nanoparticles, Photocatalysis, TiO2 nanotubes

Citation Format(s)

Intrinsic AuPt-alloy particles decorated on TiO2 nanotubes provide enhanced photocatalytic degradation. / Sanabria-Arenas, Beatriz Eugenia; Mazare, Anca; Yoo, Jeongeun; Nguyen, Nhat Truong; Hejazi, Seyedsina; Bian, Haidong; Diamanti, Maria Vittoria; Pedeferri, Maria Pia; Schmuki, Patrik.

In: Electrochimica Acta, Vol. 292, 01.12.2018, p. 865-870.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review