Imperial College London
Portrait Picture

Professor James Durrant, CBE, FRS

Faculty of Natural Sciences, Department of Chemistry

Professor of Photochemistry
 
 
 
//

Contact

 

+44 (0)20 7594 5321j.durrant Website

 
 
//

Assistant

 

Miss Lisa Benbow +44 (0)20 7594 5883

 
//

Location

 

G22CMolecular Sciences Research HubWhite City Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Wang:2019:10.1039/c8ta09583c,
author = {Wang, Y and Daboczi, M and Mesa, CA and Ratnasingham, SR and Kim, JS and Durrant, JR and Dunn, S and Yan, H and Briscoe, J},
doi = {10.1039/c8ta09583c},
journal = {Journal of Materials Chemistry A},
pages = {9537--9541},
title = {BiFeO thin films as novel visible-light-active photoanodes for solar water splitting},
url = {http://dx.doi.org/10.1039/c8ta09583c},
volume = {7},
year = {2019}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We report the chemical solution deposition (CSD) of a phase-pure Bi2Fe4O9 thin film for use as a photoanode in photoelectrochemical (PEC) water splitting. The energy levels of Bi2Fe4O9 films have been measured and n-type characteristics have been confirmed. With band gaps determined as 2.05 eV (indirect) and 2.80 eV (direct) and valence and conduction bands straddling the water oxidation and reduction potentials, this material is highly promising as a photocatalyst for solar water splitting. The photocurrent of a planar photoanode reached 0.1 mA cm−2 at 1.23 VNHE under AM1.5G illumination. The addition of H2O2 as a hole scavenger increased the photocurrent to 0.25 mA cm−2, indicating hole injection is one limiting factor to the performance. The performance was enhanced by nearly 5-fold when the Bi2Fe4O9 photoanode is coupled to a Co–Pi surface co-catalyst. The photoanode also shows excellent stability with no change in photocurrent over three hours of continuous illumination. These results indicate that this material represents a promising addition to the growing selection of low-cost, stable photocatalysts for use in solar water splitting.
AU  - Wang,Y
AU  - Daboczi,M
AU  - Mesa,CA
AU  - Ratnasingham,SR
AU  - Kim,JS
AU  - Durrant,JR
AU  - Dunn,S
AU  - Yan,H
AU  - Briscoe,J
DO  - 10.1039/c8ta09583c
EP  - 9541
PY  - 2019///
SN  - 2050-7496
SP  - 9537
TI  - BiFeO thin films as novel visible-light-active photoanodes for solar water splitting
T2  - Journal of Materials Chemistry A
UR  - http://dx.doi.org/10.1039/c8ta09583c
UR  - http://hdl.handle.net/10044/1/69872
VL  - 7
ER  -
Download