Molybdenum disulfide quantum dots directing zinc indium sulfide heterostructures for enhanced visible light hydrogen production

Yang Liu, Chao Fan Li, Xiao Yun Li, Wen Bei Yu, Wen Da Dong, Heng Zhao, Zhi Yi Hu, Zhao Deng, Chao Wang, Si Jia Wu, Hao Chen, Jing Liu, Zhao Wang, Li Hua Chen, Yu Li, Bao Lian Su

Research output: Contribution to journalArticle

Abstract

Photocatalytic hydrogen (H 2 )production based on semiconductors is important to utilize solar light for clean energy and environment. Herein, we report a visible light responsive heterostructure, designed and constructed by molybdenum disulfide quantum dots (MoS 2 -QDs)in-situ seeds-directing growth and self-assemble of zinc indium sulfide (ZnIn 2 S 4 )nanosheet to ensure their full contact through a simple one-step solvothermal method for highly improved visible light H 2 production. The MoS 2 -QDs in-situ seeds-directing ZnIn 2 S 4 heterostructure not only builds heterojunctions between MoS 2 and ZnIn 2 S 4 to spatially separate the photogenerated electrons and holes, but also serves as the active sites trapping photogenerated electrons to facilitate H 2 evolution. As a result, MoS 2 -QDs/ZnIn 2 S 4 exhibits high photocatalytic activity for H 2 production, and the optimized 2 wt% MoS 2 -QDs/ZnIn 2 S 4 (2MoS 2 -QDs/ZnIn 2 S 4 )heterostructure exhibits the highest H 2 evolution rate of 7152 umol·h −1 ·g −1 under visible light, ∼9 times of pure ZnIn 2 S 4 . Our strategy here could shed some lights on developing noble-metal free heterostructures for highly efficient photocatalytic H 2 production.

Original languageEnglish
Pages (from-to)111-118
Number of pages8
JournalJournal of Colloid and Interface Science
Volume551
DOIs
Publication statusPublished - 1 Sep 2019

Fingerprint

Indium sulfide
Hydrogen production
Semiconductor quantum dots
Molybdenum
Heterojunctions
Zinc
Seed
Hydrogen
Electrons
Nanosheets
Precious metals
molybdenum disulfide
Semiconductor materials

Keywords

  • Heterostructure
  • MoS
  • Photocatalytic hydrogen production
  • Quantum dots
  • ZnIn S

Cite this

Liu, Yang ; Li, Chao Fan ; Li, Xiao Yun ; Yu, Wen Bei ; Dong, Wen Da ; Zhao, Heng ; Hu, Zhi Yi ; Deng, Zhao ; Wang, Chao ; Wu, Si Jia ; Chen, Hao ; Liu, Jing ; Wang, Zhao ; Chen, Li Hua ; Li, Yu ; Su, Bao Lian. / Molybdenum disulfide quantum dots directing zinc indium sulfide heterostructures for enhanced visible light hydrogen production. In: Journal of Colloid and Interface Science. 2019 ; Vol. 551. pp. 111-118.
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abstract = "Photocatalytic hydrogen (H 2 )production based on semiconductors is important to utilize solar light for clean energy and environment. Herein, we report a visible light responsive heterostructure, designed and constructed by molybdenum disulfide quantum dots (MoS 2 -QDs)in-situ seeds-directing growth and self-assemble of zinc indium sulfide (ZnIn 2 S 4 )nanosheet to ensure their full contact through a simple one-step solvothermal method for highly improved visible light H 2 production. The MoS 2 -QDs in-situ seeds-directing ZnIn 2 S 4 heterostructure not only builds heterojunctions between MoS 2 and ZnIn 2 S 4 to spatially separate the photogenerated electrons and holes, but also serves as the active sites trapping photogenerated electrons to facilitate H 2 evolution. As a result, MoS 2 -QDs/ZnIn 2 S 4 exhibits high photocatalytic activity for H 2 production, and the optimized 2 wt{\%} MoS 2 -QDs/ZnIn 2 S 4 (2MoS 2 -QDs/ZnIn 2 S 4 )heterostructure exhibits the highest H 2 evolution rate of 7152 umol·h −1 ·g −1 under visible light, ∼9 times of pure ZnIn 2 S 4 . Our strategy here could shed some lights on developing noble-metal free heterostructures for highly efficient photocatalytic H 2 production.",
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author = "Yang Liu and Li, {Chao Fan} and Li, {Xiao Yun} and Yu, {Wen Bei} and Dong, {Wen Da} and Heng Zhao and Hu, {Zhi Yi} and Zhao Deng and Chao Wang and Wu, {Si Jia} and Hao Chen and Jing Liu and Zhao Wang and Chen, {Li Hua} and Yu Li and Su, {Bao Lian}",
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Molybdenum disulfide quantum dots directing zinc indium sulfide heterostructures for enhanced visible light hydrogen production. / Liu, Yang; Li, Chao Fan; Li, Xiao Yun; Yu, Wen Bei; Dong, Wen Da; Zhao, Heng; Hu, Zhi Yi; Deng, Zhao; Wang, Chao; Wu, Si Jia; Chen, Hao; Liu, Jing; Wang, Zhao; Chen, Li Hua; Li, Yu; Su, Bao Lian.

In: Journal of Colloid and Interface Science, Vol. 551, 01.09.2019, p. 111-118.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Molybdenum disulfide quantum dots directing zinc indium sulfide heterostructures for enhanced visible light hydrogen production

AU - Liu, Yang

AU - Li, Chao Fan

AU - Li, Xiao Yun

AU - Yu, Wen Bei

AU - Dong, Wen Da

AU - Zhao, Heng

AU - Hu, Zhi Yi

AU - Deng, Zhao

AU - Wang, Chao

AU - Wu, Si Jia

AU - Chen, Hao

AU - Liu, Jing

AU - Wang, Zhao

AU - Chen, Li Hua

AU - Li, Yu

AU - Su, Bao Lian

N1 - Copyright © 2019 Elsevier Inc. All rights reserved.

PY - 2019/9/1

Y1 - 2019/9/1

N2 - Photocatalytic hydrogen (H 2 )production based on semiconductors is important to utilize solar light for clean energy and environment. Herein, we report a visible light responsive heterostructure, designed and constructed by molybdenum disulfide quantum dots (MoS 2 -QDs)in-situ seeds-directing growth and self-assemble of zinc indium sulfide (ZnIn 2 S 4 )nanosheet to ensure their full contact through a simple one-step solvothermal method for highly improved visible light H 2 production. The MoS 2 -QDs in-situ seeds-directing ZnIn 2 S 4 heterostructure not only builds heterojunctions between MoS 2 and ZnIn 2 S 4 to spatially separate the photogenerated electrons and holes, but also serves as the active sites trapping photogenerated electrons to facilitate H 2 evolution. As a result, MoS 2 -QDs/ZnIn 2 S 4 exhibits high photocatalytic activity for H 2 production, and the optimized 2 wt% MoS 2 -QDs/ZnIn 2 S 4 (2MoS 2 -QDs/ZnIn 2 S 4 )heterostructure exhibits the highest H 2 evolution rate of 7152 umol·h −1 ·g −1 under visible light, ∼9 times of pure ZnIn 2 S 4 . Our strategy here could shed some lights on developing noble-metal free heterostructures for highly efficient photocatalytic H 2 production.

AB - Photocatalytic hydrogen (H 2 )production based on semiconductors is important to utilize solar light for clean energy and environment. Herein, we report a visible light responsive heterostructure, designed and constructed by molybdenum disulfide quantum dots (MoS 2 -QDs)in-situ seeds-directing growth and self-assemble of zinc indium sulfide (ZnIn 2 S 4 )nanosheet to ensure their full contact through a simple one-step solvothermal method for highly improved visible light H 2 production. The MoS 2 -QDs in-situ seeds-directing ZnIn 2 S 4 heterostructure not only builds heterojunctions between MoS 2 and ZnIn 2 S 4 to spatially separate the photogenerated electrons and holes, but also serves as the active sites trapping photogenerated electrons to facilitate H 2 evolution. As a result, MoS 2 -QDs/ZnIn 2 S 4 exhibits high photocatalytic activity for H 2 production, and the optimized 2 wt% MoS 2 -QDs/ZnIn 2 S 4 (2MoS 2 -QDs/ZnIn 2 S 4 )heterostructure exhibits the highest H 2 evolution rate of 7152 umol·h −1 ·g −1 under visible light, ∼9 times of pure ZnIn 2 S 4 . Our strategy here could shed some lights on developing noble-metal free heterostructures for highly efficient photocatalytic H 2 production.

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KW - MoS

KW - Photocatalytic hydrogen production

KW - Quantum dots

KW - ZnIn S

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