Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 21st October 2020 from 07:00 AM to 07:00 PM (BST).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 24, 2017
Previous Article Next Article

Spontaneous polarization field-enhanced charge separation for an iron oxide photo-catalyst

Author affiliations

Abstract

This study focuses on the morphological effects of zinc oxide nanostructures on the charge separation of iron oxide/zinc oxide nanocomposite materials in a photoelectrochemical (PEC) cell. More specifically, the effect of a spontaneous polarization field from the zinc oxide nanosheet structure on the photocatalytic charge separation was investigated for the first time. Two different morphologies of zinc oxide nanosheets (NSs) and nanorods (NRs) were produced through an electrochemical approach followed by spin coating techniques to decorate the nanostructures with iron oxide nanoparticles. The morphology and composition of the nanocomposite systems were characterized using SEM, XRD and EDS. The visible light absorbance of the nanocomposite materials was confirmed by diffuse reflectance spectroscopy (DRS). The photoresponse of the composite material was studied using a potentiostat under visible light irradiation, and it was found that the NSs produced a current density of 1.5 μA cm−2, which was four times larger than that of the NRs. These findings were explained by the existence of a strong spontaneous polarization field in the nanosheet structure. The combination of iron oxide on the zinc oxide NSs was found to be a better choice in photocatalytic water splitting.

Graphical abstract: Spontaneous polarization field-enhanced charge separation for an iron oxide photo-catalyst

Back to tab navigation

Supplementary files

Article information


Submitted
22 Sep 2017
Accepted
31 Oct 2017
First published
23 Nov 2017

New J. Chem., 2017,41, 15528-15532
Article type
Paper

Spontaneous polarization field-enhanced charge separation for an iron oxide photo-catalyst

J. Johnson, N. Bakranov, M. Moniruddin, R. Iskakov, S. Kudaibergenov and N. Nuraje, New J. Chem., 2017, 41, 15528
DOI: 10.1039/C7NJ03629A

Social activity

Search articles by author

Spotlight

Advertisements