@article{0f84dc01ea30411992f5c545d5c7196f,
title = "Effect of CuFe2O4 ferrite on photocatalysis and carrier dynamics of electrospun α-Fe2O3 nanofibers by time-resolved transient absorption spectroscopy",
abstract = "Pristine and Cu-doped α-Fe2O3 nanofibrous photocatalysts were prepared facilely by electrospinning followed by thermal calcination for removal of the polymeric template. The addition of Cu resulted in formation of copper ferrite (CuFe2O4) in the α-Fe2O3 matrix. Photogenerated electrons and holes in the photocatalysts were found trapped in semiconducting midgaps by the time-resolved transient absorption spectroscopy under pulsed light irradiations (355 nm wavelength). The Cu-doped α-Fe2O3 showed an increased carriers population when compared to the pristine counterpart. The finding was in good agreement with the methylene-blue (MB) dye degradation under ultraviolet-light irradiations, in which an enhanced MB removal was found for the Cu-doped α-Fe2O3 photocatalyst. The MB dye removal was directly correlated with the presence of CuFe2O4 ferrite in the α-Fe2O3 matrix; from which, the semiconducting heterojunction at the interface led to a prolonged lifetime of the carriers and a resultant increase on the carriers population and MB photodegradation.",
keywords = "Dye degradation, Photocatalysis, Transient absorption spectroscopy, α-FeO",
author = "Hung, {Pei Hsuan} and Vequizo, {Junie Jhon M.} and Wu, {Ren An} and Akira Yamakata and Tseng, {Wenjea J.}",
note = "Funding Information: WJT would like to thank the Ministry of Science and Technology (Taiwan)for the financial support under contract numbers MOST 102-2221-E-005-029-MY2 and 101-2221-E005-033-MY3. AY would like to thank the financial supports by the Grant-in-Aid for Basic Research (B)(No. 16H04188 & 19H02820), Scientific Research on Innovative Areas (Mixed Anion: 17H05491 & 19H04708), and Cooperative Research Program of Institute for Catalysis, Hokkaido University (17A1001). Funding Information: WJT would like to thank the Ministry of Science and Technology (Taiwan) for the financial support under contract numbers MOST 102-2221-E-005-029-MY2 and 101-2221-E005-033-MY3. AY would like to thank the financial supports by the Grant-in-Aid for Basic Research (B) (No. 16H04188 & 19H02820), Scientific Research on Innovative Areas (Mixed Anion: 17H05491 & 19H04708), and Cooperative Research Program of Institute for Catalysis, Hokkaido University (17A1001). Funding Information: WJT would like to thank the Ministry of Science and Technology (Taiwan) for the financial support under contract numbers MOST 102-2221-E-005-029-MY2 and 101-2221-E005-033-MY3 . AY would like to thank the financial supports by the Grant-in- Aid for Basic Research (B) (No. 16H04188 & 19H02820 ), Scientific Research on Innovative Areas (Mixed Anion: 17H05491 & 19H04708 ), and Cooperative Research Program of Institute for Catalysis, Hokkaido University ( 17A1001 ). Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd and Techna Group S.r.l.",
year = "2019",
month = aug,
day = "15",
doi = "10.1016/j.ceramint.2019.05.080",
language = "English",
volume = "45",
pages = "15676--15680",
journal = "Ceramics International",
issn = "0272-8842",
publisher = "Elsevier Limited",
number = "12",
}