Local coulomb attraction for enhanced H2 evolution stability of metal sulfide photocatalysts

Jun Jie Zhao; Yu Hang Li; Peng Fei Liu; Yu Lei Wang; Xu Lei Du; Xue Lu Wang; Hui Dan Zeng; Li Rong Zheng; Hua Gui Yang

doi:10.1016/j.apcatb.2017.09.012

Local coulomb attraction for enhanced H₂ evolution stability of metal sulfide photocatalysts

Jun Jie Zhao, Yu Hang Li, Peng Fei Liu, Yu Lei Wang, Xu Lei Du, Xue Lu Wang, Hui Dan Zeng, Li Rong Zheng, Hua Gui Yang

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

22 Scopus citations

Abstract

Cadmiun sulfide (CdS) is considered as a promising semiconductor photocatalyst for its outstanding light absorbance and photoinduced charge separation, but it suffers from severe photocorrosion, mainly due to the sluggish kinetics of holes transfer. In this work, we introduce the strong local Coulomb attraction, which is demonstrated via the in situ K-edge X-ray absorption near edge (XANES) analysis, to accelerate the migration of holes for long-term photocatalytic activity. As a proof-of-concept sample, the hole-attraction Fe₂O₃/CdS nanorods evidence an outstanding stability of at least 6 days without obvious deactivation, and feature with an excellent H₂ evolution rate of 20.7 mmol g⁻¹ h⁻¹. Moreover, this Coulomb attraction strategy can be leveraged to enhance the photocatalytic performance of Zn_0.5Cd_0.5S, indicating the wide application of the strategy.

Original language	English
Pages (from-to)	152-157
Number of pages	6
Journal	Applied Catalysis B: Environmental
Volume	221
DOIs	https://doi.org/10.1016/j.apcatb.2017.09.012
State	Published - 2018
Externally published	Yes

Keywords

Hydrogen evolution
Local coulomb attraction
Metal sulfides
Photocatalytic stability

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10.1016/j.apcatb.2017.09.012

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title = "Local coulomb attraction for enhanced H2 evolution stability of metal sulfide photocatalysts",

abstract = "Cadmiun sulfide (CdS) is considered as a promising semiconductor photocatalyst for its outstanding light absorbance and photoinduced charge separation, but it suffers from severe photocorrosion, mainly due to the sluggish kinetics of holes transfer. In this work, we introduce the strong local Coulomb attraction, which is demonstrated via the in situ K-edge X-ray absorption near edge (XANES) analysis, to accelerate the migration of holes for long-term photocatalytic activity. As a proof-of-concept sample, the hole-attraction Fe2O3/CdS nanorods evidence an outstanding stability of at least 6 days without obvious deactivation, and feature with an excellent H2 evolution rate of 20.7 mmol g−1 h−1. Moreover, this Coulomb attraction strategy can be leveraged to enhance the photocatalytic performance of Zn0.5Cd0.5S, indicating the wide application of the strategy.",

keywords = "Hydrogen evolution, Local coulomb attraction, Metal sulfides, Photocatalytic stability",

author = "Zhao, \{Jun Jie\} and Li, \{Yu Hang\} and Liu, \{Peng Fei\} and Wang, \{Yu Lei\} and Du, \{Xu Lei\} and Wang, \{Xue Lu\} and Zeng, \{Hui Dan\} and Zheng, \{Li Rong\} and Yang, \{Hua Gui\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2018",

doi = "10.1016/j.apcatb.2017.09.012",

language = "英语",

volume = "221",

pages = "152--157",

journal = "Applied Catalysis B: Environmental",

issn = "0926-3373",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Local coulomb attraction for enhanced H2 evolution stability of metal sulfide photocatalysts

AU - Zhao, Jun Jie

AU - Li, Yu Hang

AU - Liu, Peng Fei

AU - Wang, Yu Lei

AU - Du, Xu Lei

AU - Wang, Xue Lu

AU - Zeng, Hui Dan

AU - Zheng, Li Rong

AU - Yang, Hua Gui

PY - 2018

Y1 - 2018

N2 - Cadmiun sulfide (CdS) is considered as a promising semiconductor photocatalyst for its outstanding light absorbance and photoinduced charge separation, but it suffers from severe photocorrosion, mainly due to the sluggish kinetics of holes transfer. In this work, we introduce the strong local Coulomb attraction, which is demonstrated via the in situ K-edge X-ray absorption near edge (XANES) analysis, to accelerate the migration of holes for long-term photocatalytic activity. As a proof-of-concept sample, the hole-attraction Fe2O3/CdS nanorods evidence an outstanding stability of at least 6 days without obvious deactivation, and feature with an excellent H2 evolution rate of 20.7 mmol g−1 h−1. Moreover, this Coulomb attraction strategy can be leveraged to enhance the photocatalytic performance of Zn0.5Cd0.5S, indicating the wide application of the strategy.

AB - Cadmiun sulfide (CdS) is considered as a promising semiconductor photocatalyst for its outstanding light absorbance and photoinduced charge separation, but it suffers from severe photocorrosion, mainly due to the sluggish kinetics of holes transfer. In this work, we introduce the strong local Coulomb attraction, which is demonstrated via the in situ K-edge X-ray absorption near edge (XANES) analysis, to accelerate the migration of holes for long-term photocatalytic activity. As a proof-of-concept sample, the hole-attraction Fe2O3/CdS nanorods evidence an outstanding stability of at least 6 days without obvious deactivation, and feature with an excellent H2 evolution rate of 20.7 mmol g−1 h−1. Moreover, this Coulomb attraction strategy can be leveraged to enhance the photocatalytic performance of Zn0.5Cd0.5S, indicating the wide application of the strategy.

KW - Hydrogen evolution

KW - Local coulomb attraction

KW - Metal sulfides

KW - Photocatalytic stability

UR - https://www.scopus.com/pages/publications/85029431376

U2 - 10.1016/j.apcatb.2017.09.012

DO - 10.1016/j.apcatb.2017.09.012

M3 - 文章

AN - SCOPUS:85029431376

SN - 0926-3373

VL - 221

SP - 152

EP - 157

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

ER -

Local coulomb attraction for enhanced H₂ evolution stability of metal sulfide photocatalysts

Abstract

Keywords

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