A newly-designed polyoxometalate-based plasmonic visible-light catalyst for the photodegradation of methyl blue

Wenhui Zhou; Minhua Cao; Shuangyue Su; Na Li; Xinyu Zhao; Jiangqiang Wang; Xianghua Li; Changwen Hu

doi:10.1016/j.molcata.2013.01.028

A newly-designed polyoxometalate-based plasmonic visible-light catalyst for the photodegradation of methyl blue

Wenhui Zhou, Minhua Cao^*, Shuangyue Su, Na Li, Xinyu Zhao, Jiangqiang Wang, Xianghua Li, Changwen Hu

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Beijing Institute of Technology

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

31 Citations (Scopus)

Abstract

A newly-designed polyoxometalate (POM)-based plasmonic visible-light catalyst, Ag/Ag_xH_4-xSiW₁₂O₄₀ (Ag/AgHSiW) nanoparticles (NPs), is prepared by a green photoreduction strategy without the addition of any surfactant. The Ag/AgHSiW NPs, which possess abundant hydroxyl (OH) groups on their surface, has not only significantly enhanced visible spectrum absorption but also reduced photoluminescence (PL) emission. Compared with P25, Ag NPs, H₄SiW₁₂O₄₀ (HSiW) and Ag₄SiW₁₂O₄₀ (AgSiW), the Ag/AgHSiW photocatalyst shows high photocatalytic activity and stability for the decomposition of methyl blue (MB) under visible light irradiation, which could be attributed to highly synergic effect of photoexcited AgHSiW and plasmon-excited Ag NPs.

Original language	English
Pages (from-to)	70-76
Number of pages	7
Journal	Journal of Molecular Catalysis A: Chemical
Volume	371
DOIs	https://doi.org/10.1016/j.molcata.2013.01.028
Publication status	Published - May 2013

Keywords

MB
POMs
Plasmonic
Visible light catalytic

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Zhou, W., Cao, M., Su, S., Li, N., Zhao, X., Wang, J., Li, X., & Hu, C. (2013). A newly-designed polyoxometalate-based plasmonic visible-light catalyst for the photodegradation of methyl blue. Journal of Molecular Catalysis A: Chemical, 371, 70-76. https://doi.org/10.1016/j.molcata.2013.01.028

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title = "A newly-designed polyoxometalate-based plasmonic visible-light catalyst for the photodegradation of methyl blue",

abstract = "A newly-designed polyoxometalate (POM)-based plasmonic visible-light catalyst, Ag/AgxH4-xSiW12O40 (Ag/AgHSiW) nanoparticles (NPs), is prepared by a green photoreduction strategy without the addition of any surfactant. The Ag/AgHSiW NPs, which possess abundant hydroxyl (OH) groups on their surface, has not only significantly enhanced visible spectrum absorption but also reduced photoluminescence (PL) emission. Compared with P25, Ag NPs, H4SiW12O40 (HSiW) and Ag4SiW12O40 (AgSiW), the Ag/AgHSiW photocatalyst shows high photocatalytic activity and stability for the decomposition of methyl blue (MB) under visible light irradiation, which could be attributed to highly synergic effect of photoexcited AgHSiW and plasmon-excited Ag NPs.",

keywords = "MB, POMs, Plasmonic, Visible light catalytic",

author = "Wenhui Zhou and Minhua Cao and Shuangyue Su and Na Li and Xinyu Zhao and Jiangqiang Wang and Xianghua Li and Changwen Hu",

year = "2013",

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doi = "10.1016/j.molcata.2013.01.028",

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AU - Zhou, Wenhui

AU - Cao, Minhua

AU - Su, Shuangyue

AU - Li, Na

AU - Zhao, Xinyu

AU - Wang, Jiangqiang

AU - Li, Xianghua

AU - Hu, Changwen

PY - 2013/5

Y1 - 2013/5

N2 - A newly-designed polyoxometalate (POM)-based plasmonic visible-light catalyst, Ag/AgxH4-xSiW12O40 (Ag/AgHSiW) nanoparticles (NPs), is prepared by a green photoreduction strategy without the addition of any surfactant. The Ag/AgHSiW NPs, which possess abundant hydroxyl (OH) groups on their surface, has not only significantly enhanced visible spectrum absorption but also reduced photoluminescence (PL) emission. Compared with P25, Ag NPs, H4SiW12O40 (HSiW) and Ag4SiW12O40 (AgSiW), the Ag/AgHSiW photocatalyst shows high photocatalytic activity and stability for the decomposition of methyl blue (MB) under visible light irradiation, which could be attributed to highly synergic effect of photoexcited AgHSiW and plasmon-excited Ag NPs.

AB - A newly-designed polyoxometalate (POM)-based plasmonic visible-light catalyst, Ag/AgxH4-xSiW12O40 (Ag/AgHSiW) nanoparticles (NPs), is prepared by a green photoreduction strategy without the addition of any surfactant. The Ag/AgHSiW NPs, which possess abundant hydroxyl (OH) groups on their surface, has not only significantly enhanced visible spectrum absorption but also reduced photoluminescence (PL) emission. Compared with P25, Ag NPs, H4SiW12O40 (HSiW) and Ag4SiW12O40 (AgSiW), the Ag/AgHSiW photocatalyst shows high photocatalytic activity and stability for the decomposition of methyl blue (MB) under visible light irradiation, which could be attributed to highly synergic effect of photoexcited AgHSiW and plasmon-excited Ag NPs.

KW - MB

KW - POMs

KW - Plasmonic

KW - Visible light catalytic

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DO - 10.1016/j.molcata.2013.01.028

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SN - 1381-1169

VL - 371

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JO - Journal of Molecular Catalysis A: Chemical

JF - Journal of Molecular Catalysis A: Chemical

ER -

A newly-designed polyoxometalate-based plasmonic visible-light catalyst for the photodegradation of methyl blue

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Keywords

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