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@article{Alotaibi:2018:10.1021/acs.chemmater.7b04944,
author = {Alotaibi, AM and Sathasivam, S and Williamson, BAD and Kafizas, A and Sotelo-Vazquez, C and Taylor, A and Scanlon, DO and Parkin, IP},
doi = {10.1021/acs.chemmater.7b04944},
journal = {Chemistry of Materials},
pages = {1353--1361},
title = {Chemical vapor deposition of photocatalytically active pure brookite TiO2 thin films},
url = {http://dx.doi.org/10.1021/acs.chemmater.7b04944},
volume = {30},
year = {2018}
}
TY - JOUR
AB - Brookite is the least investigated phase of TiO2 due to the synthetic difficulty of obtaining the pure phase. Here, we present the first ever chemical vapor deposition synthesis of pure brookite TiO2 thin films. The films were highly crystalline and phase pure as determined by X-ray diffraction and Raman spectroscopy studies. Scanning electron microscopy studies showed the films to have a structured morphology consisting of pyramidal features. The photocatalytic properties of the brookite film, tested using stearic acid under UVA (365 nm) irradiation, were superior to both an anatase film grown under similar conditions and NSG Activ glass. Transient absorption spectroscopy showed that the innate electron–hole recombination dynamics are similar in brookite and anatase, akin to previous reports. The superior activity of the brookite film is hence attributed to the higher surface area compared to anatase.
AU - Alotaibi,AM
AU - Sathasivam,S
AU - Williamson,BAD
AU - Kafizas,A
AU - Sotelo-Vazquez,C
AU - Taylor,A
AU - Scanlon,DO
AU - Parkin,IP
DO - 10.1021/acs.chemmater.7b04944
EP - 1361
PY - 2018///
SN - 0897-4756
SP - 1353
TI - Chemical vapor deposition of photocatalytically active pure brookite TiO2 thin films
T2 - Chemistry of Materials
UR - http://dx.doi.org/10.1021/acs.chemmater.7b04944
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000426614200017&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - http://hdl.handle.net/10044/1/65808
VL - 30
ER -
Dr. Andreas Kafizas
Leader - Solar Coatings Group
e-mail: a.kafizas@imperial.ac.uk
tel: +44(0)20 7594 6752
twitter: @CoatingsSolar