Photocatalytic water oxidation with a Prussian blue modified brown TiO2

Gulsum Gundogdu; T. Gamze Ulusoy Ghobadi; Sina Sadigh Akbari; Ekmel Ozbay; Ferdi Karadas

doi:10.1039/D0CC07077G

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Photocatalytic water oxidation with a Prussian blue modified brown TiO₂†

Gulsum Gundogdu,

^a T. Gamze Ulusoy Ghobadi,

^b Sina Sadigh Akbari,

^a Ekmel Ozbay

^cde and Ferdi Karadas

*^ab

Author affiliations

* Corresponding authors

^a Department of Chemistry, Faculty of Science, Bilkent University, Ankara 06800, Turkey
E-mail: karadas@fen.bilkent.edu.tr

^b UNAM – National Nanotechnology Research Center, Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey

^c Department of Electrical and Electronics Engineering, Bilkent University, Ankara 06800, Turkey

^d NANOTAM – Nanotechnology Research Center, Bilkent University, Ankara 06800, Turkey

^e Department of Physics, Bilkent University, Ankara 06800, Turkey

Abstract

A recently emerging visible light-absorbing semiconductor, brown TiO₂ (b-TiO₂), was coupled with a CoFe Prussian blue (PB) analogue to prepare an entirely earth-abundant semiconductor/water oxidation catalyst hybrid assembly. PB/b-TiO₂ exhibits a sevenfold higher photocatalytic water oxidation activity compared to b-TiO₂. An elegant band alignment unified with the optical absorption of b-TiO₂ and excellent electronic dynamics of PB yield a high-performance photocatalytic system.

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Article information

DOI: https://doi.org/10.1039/D0CC07077G
Article type: Communication
Submitted: 25 Oct 2020
Accepted: 04 Dec 2020
First published: 08 Dec 2020

Download Citation

Chem. Commun., 2021,57, 508-511

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Photocatalytic water oxidation with a Prussian blue modified brown TiO₂

G. Gundogdu, T. G. Ulusoy Ghobadi, S. Sadigh Akbari, E. Ozbay and F. Karadas, Chem. Commun., 2021, 57, 508 DOI: 10.1039/D0CC07077G

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Chemical Communications