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

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

doi:10.1016/j.electacta.2018.09.206

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

Related Research Unit(s)

Centre of Super-Diamond and Advanced Films

Detail(s)

Original language	English
Pages (from-to)	865-870
Journal / Publication	Electrochimica Acta
Volume	292
Online published	2 Oct 2018
Publication status	Published - 1 Dec 2018

Link(s)

DOI	DOI https://doi.org/10.1016/j.electacta.2018.09.206 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85055994878&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(6b582f44-f12c-40c6-8c65-5f604150004a).html

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)

[ RIS ] [ BibTeX ]

Intrinsic AuPt-alloy particles decorated on TiO₂ nanotubes provide enhanced photocatalytic degradation. / Sanabria-Arenas, Beatriz Eugenia; Mazare, Anca; Yoo, Jeongeun et al.
In: Electrochimica Acta, Vol. 292, 01.12.2018, p. 865-870.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Sanabria-Arenas, BE, Mazare, A, Yoo, J, Nguyen, NT, Hejazi, S, Bian, H, Diamanti, MV, Pedeferri, MP & Schmuki, P 2018, 'Intrinsic AuPt-alloy particles decorated on TiO₂ nanotubes provide enhanced photocatalytic degradation', Electrochimica Acta, vol. 292, pp. 865-870. https://doi.org/10.1016/j.electacta.2018.09.206

Sanabria-Arenas, B. E., Mazare, A., Yoo, J., Nguyen, N. T., Hejazi, S., Bian, H., Diamanti, M. V., Pedeferri, M. P., & Schmuki, P. (2018). Intrinsic AuPt-alloy particles decorated on TiO₂ nanotubes provide enhanced photocatalytic degradation. Electrochimica Acta, 292, 865-870. https://doi.org/10.1016/j.electacta.2018.09.206

Sanabria-Arenas BE, Mazare A, Yoo J, Nguyen NT, Hejazi S, Bian H et al. Intrinsic AuPt-alloy particles decorated on TiO₂ nanotubes provide enhanced photocatalytic degradation. Electrochimica Acta. 2018 Dec 1;292:865-870. Epub 2018 Oct 2. doi: 10.1016/j.electacta.2018.09.206

Sanabria-Arenas, Beatriz Eugenia ; Mazare, Anca ; Yoo, Jeongeun et al. / Intrinsic AuPt-alloy particles decorated on TiO₂ nanotubes provide enhanced photocatalytic degradation. In: Electrochimica Acta. 2018 ; Vol. 292. pp. 865-870.