Fullerene C70 decorated TiO2 nanowires for visible-light-responsive photocatalyst

Er Chieh Cho; Jing Hao Ciou; Jia Huei Zheng; Job Pan; Yu Sheng Hsiao; Kuen Chan Lee; Jen Hsien Huang

doi:10.1016/j.apsusc.2015.07.062

Fullerene C₇₀ decorated TiO₂ nanowires for visible-light-responsive photocatalyst

Er Chieh Cho, Jing Hao Ciou, Jia Huei Zheng, Job Pan, Yu Sheng Hsiao, Kuen Chan Lee, Jen Hsien Huang

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

In this study, we have synthesized C₆₀ and C₇₀-modified TiO₂ nanowire (NW) through interfacial chemical bonding. The results indicate that the fullerenes (C₆₀ and C₇₀ derivatives) can act as sinks for photogenerated electrons in TiO₂, while the fullerene/TiO₂ is illuminated under ultraviolet (UV) light. Therefore, in comparison to the pure TiO₂ NWs, the modified TiO₂ NWs display a higher photocatalytic activity under UV irradiation. Moreover, the fullerenes also can function as a sensitizer to TiO₂ which expand the utilization of solar light from UV to visible light. The results reveal that the C₇₀/TiO₂ NWs show a significant photocatalytic activity for degradation of methylene blue (MB) in visible light region. To better understand the mechanism responsible for the effect of fullerenes on the photocatalytic properties of TiO₂, the electron only devices and photoelectrochemical cells based on fullerenes/TiO₂ are also fabricated and evaluated.

Original language	English
Pages (from-to)	536-546
Number of pages	11
Journal	Applied Surface Science
Volume	355
DOIs	https://doi.org/10.1016/j.apsusc.2015.07.062
Publication status	Published - Nov 15 2015

Keywords

Fullerene
Nanowire
Photocatalyst
TiO
Visible light

ASJC Scopus subject areas

Surfaces, Coatings and Films

Access to Document

10.1016/j.apsusc.2015.07.062

Cite this

@article{7b500a0e55f94a179f1e865079bbcc82,

title = "Fullerene C70 decorated TiO2 nanowires for visible-light-responsive photocatalyst",

abstract = "In this study, we have synthesized C60 and C70-modified TiO2 nanowire (NW) through interfacial chemical bonding. The results indicate that the fullerenes (C60 and C70 derivatives) can act as sinks for photogenerated electrons in TiO2, while the fullerene/TiO2 is illuminated under ultraviolet (UV) light. Therefore, in comparison to the pure TiO2 NWs, the modified TiO2 NWs display a higher photocatalytic activity under UV irradiation. Moreover, the fullerenes also can function as a sensitizer to TiO2 which expand the utilization of solar light from UV to visible light. The results reveal that the C70/TiO2 NWs show a significant photocatalytic activity for degradation of methylene blue (MB) in visible light region. To better understand the mechanism responsible for the effect of fullerenes on the photocatalytic properties of TiO2, the electron only devices and photoelectrochemical cells based on fullerenes/TiO2 are also fabricated and evaluated.",

keywords = "Fullerene, Nanowire, Photocatalyst, TiO, Visible light",

author = "Cho, {Er Chieh} and Ciou, {Jing Hao} and Zheng, {Jia Huei} and Job Pan and Hsiao, {Yu Sheng} and Lee, {Kuen Chan} and Huang, {Jen Hsien}",

year = "2015",

month = nov,

day = "15",

doi = "10.1016/j.apsusc.2015.07.062",

language = "English",

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journal = "Applied Surface Science",

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T1 - Fullerene C70 decorated TiO2 nanowires for visible-light-responsive photocatalyst

AU - Cho, Er Chieh

AU - Ciou, Jing Hao

AU - Zheng, Jia Huei

AU - Pan, Job

AU - Hsiao, Yu Sheng

AU - Lee, Kuen Chan

AU - Huang, Jen Hsien

PY - 2015/11/15

Y1 - 2015/11/15

N2 - In this study, we have synthesized C60 and C70-modified TiO2 nanowire (NW) through interfacial chemical bonding. The results indicate that the fullerenes (C60 and C70 derivatives) can act as sinks for photogenerated electrons in TiO2, while the fullerene/TiO2 is illuminated under ultraviolet (UV) light. Therefore, in comparison to the pure TiO2 NWs, the modified TiO2 NWs display a higher photocatalytic activity under UV irradiation. Moreover, the fullerenes also can function as a sensitizer to TiO2 which expand the utilization of solar light from UV to visible light. The results reveal that the C70/TiO2 NWs show a significant photocatalytic activity for degradation of methylene blue (MB) in visible light region. To better understand the mechanism responsible for the effect of fullerenes on the photocatalytic properties of TiO2, the electron only devices and photoelectrochemical cells based on fullerenes/TiO2 are also fabricated and evaluated.

AB - In this study, we have synthesized C60 and C70-modified TiO2 nanowire (NW) through interfacial chemical bonding. The results indicate that the fullerenes (C60 and C70 derivatives) can act as sinks for photogenerated electrons in TiO2, while the fullerene/TiO2 is illuminated under ultraviolet (UV) light. Therefore, in comparison to the pure TiO2 NWs, the modified TiO2 NWs display a higher photocatalytic activity under UV irradiation. Moreover, the fullerenes also can function as a sensitizer to TiO2 which expand the utilization of solar light from UV to visible light. The results reveal that the C70/TiO2 NWs show a significant photocatalytic activity for degradation of methylene blue (MB) in visible light region. To better understand the mechanism responsible for the effect of fullerenes on the photocatalytic properties of TiO2, the electron only devices and photoelectrochemical cells based on fullerenes/TiO2 are also fabricated and evaluated.

KW - Fullerene

KW - Nanowire

KW - Photocatalyst

KW - TiO

KW - Visible light

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