Effect of the Heterovalent Sc3+ and Nb5+ Doping on Photoelectrochemical Behavior of Anatase TiO2-Reference-Cited by-同舟云学术

Effect of the Heterovalent Sc3+ and Nb5+ Doping on Photoelectrochemical Behavior of Anatase TiO2

Published:2024-01-17 Issue:1 Volume:14 Page:76
ISSN:2073-4344
Container-title:Catalysts
language:en
Short-container-title:Catalysts

Author:

Siliavka Elena S.¹,Rudakova Aida V.¹^ORCID,Bakiev Tair V.¹,Murashkina Anna A.¹,Murzin Petr D.¹,Kataeva Galina V.²,Emeline Alexei V.¹,Bahnemann Detlef W.¹^ORCID

Affiliation:

1. Laboratory “Photoactive Nanocomposite Materials”, Saint Petersburg State University, 199034 Saint-Petersburg, Russia

2. Department of General and Applied Physics, Moscow State University of Civil Engineering, 129337 Moscow, Russia

Abstract

In this study, we explored the effect of either Nb or Sc doping at a concentration range of 0.0–1.0 at.% on the physical–chemical and photoelectrochemical behavior of TiO2 anatase electrodes. This behavior was characterized by work function, flat band potential, donor density, spectral dependence of photocurrent and stationary photocurrent measurements. All experimental results are interpreted in terms of the formation of the shallow delocalized polaron states in the case of Nb doping and deep acceptor states induced by Sc doping on TiO2 anatase.

Funder

Russian Science Foundation

Publisher

MDPI AG

Link

https://www.mdpi.com/2073-4344/14/1/76/pdf

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