Preparation of Au-BiVO 4 heterogeneous nanostructures as highly efficient visible-light photocatalysts

Shao Wen Cao; Zhen Yin; James Barber; Freddy Y.C. Boey; Say Chye Joachim Loo; Can Xue

doi:10.1021/am201481b

Preparation of Au-BiVO ₄ heterogeneous nanostructures as highly efficient visible-light photocatalysts

Shao Wen Cao, Zhen Yin, James Barber, Freddy Y.C. Boey, Say Chye Joachim Loo^*, Can Xue

^*Corresponding author for this work

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

283 Citations (Scopus)

Abstract

Au-BiVO ₄ heterogeneous nanostructures have been successfully prepared through in situ growth of gold nanoparticles on BiVO ₄ microtubes and nanosheets via a cysteine-linking strategy. The experimental results reveal that these Au-BiVO ₄ heterogeneous nanostructures exhibit much higher visible-light photocatalytic activities than the individual BiVO ₄ microtubes and nanosheets for both dye degradation and water oxidation. The enhanced photocatalytic efficiencies are attributed to the charge transfer from BiVO ₄ to the attached gold nanoparticles as well as their surface plasmon resonance (SPR) absorption. These new heteronanostructures are expected to show considerable potential applications in solar-driven wastewater treatment and water splitting.

Original language	English
Pages (from-to)	418-423
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	4
Issue number	1
DOIs	https://doi.org/10.1021/am201481b
Publication status	Published - Jan 25 2012
Externally published	Yes

ASJC Scopus Subject Areas

General Materials Science

Keywords

electron transfer
heterojunction
photocatalyst
surface plasmon resonance
water splitting

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/am201481b

Cite this

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abstract = "Au-BiVO 4 heterogeneous nanostructures have been successfully prepared through in situ growth of gold nanoparticles on BiVO 4 microtubes and nanosheets via a cysteine-linking strategy. The experimental results reveal that these Au-BiVO 4 heterogeneous nanostructures exhibit much higher visible-light photocatalytic activities than the individual BiVO 4 microtubes and nanosheets for both dye degradation and water oxidation. The enhanced photocatalytic efficiencies are attributed to the charge transfer from BiVO 4 to the attached gold nanoparticles as well as their surface plasmon resonance (SPR) absorption. These new heteronanostructures are expected to show considerable potential applications in solar-driven wastewater treatment and water splitting.",

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AU - Cao, Shao Wen

AU - Yin, Zhen

AU - Barber, James

AU - Boey, Freddy Y.C.

AU - Loo, Say Chye Joachim

AU - Xue, Can

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N2 - Au-BiVO 4 heterogeneous nanostructures have been successfully prepared through in situ growth of gold nanoparticles on BiVO 4 microtubes and nanosheets via a cysteine-linking strategy. The experimental results reveal that these Au-BiVO 4 heterogeneous nanostructures exhibit much higher visible-light photocatalytic activities than the individual BiVO 4 microtubes and nanosheets for both dye degradation and water oxidation. The enhanced photocatalytic efficiencies are attributed to the charge transfer from BiVO 4 to the attached gold nanoparticles as well as their surface plasmon resonance (SPR) absorption. These new heteronanostructures are expected to show considerable potential applications in solar-driven wastewater treatment and water splitting.

AB - Au-BiVO 4 heterogeneous nanostructures have been successfully prepared through in situ growth of gold nanoparticles on BiVO 4 microtubes and nanosheets via a cysteine-linking strategy. The experimental results reveal that these Au-BiVO 4 heterogeneous nanostructures exhibit much higher visible-light photocatalytic activities than the individual BiVO 4 microtubes and nanosheets for both dye degradation and water oxidation. The enhanced photocatalytic efficiencies are attributed to the charge transfer from BiVO 4 to the attached gold nanoparticles as well as their surface plasmon resonance (SPR) absorption. These new heteronanostructures are expected to show considerable potential applications in solar-driven wastewater treatment and water splitting.

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KW - heterojunction

KW - photocatalyst

KW - surface plasmon resonance

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