Ferroelectric-field accelerated charge transfer in 2D CuInP2S6 heterostructure for enhanced photocatalytic H2 evolution

Bo Lin; Apoorva Chaturvedi; Jun Di; Lu You; Chen Lai; Ruihuan Duan; Jiadong Zhou; Baorong Xu; Zihao Chen; Pin Song; Juan Peng; Bowen Ma; Haishi Liu; Peng Meng; Guidong Yang; Hua Zhang; Zheng Liu; Fucai Liu

doi:10.1016/j.nanoen.2020.104972

Ferroelectric-field accelerated charge transfer in 2D CuInP₂S₆ heterostructure for enhanced photocatalytic H₂ evolution

Bo Lin, Apoorva Chaturvedi, Jun Di, Lu You, Chen Lai, Ruihuan Duan, Jiadong Zhou, Baorong Xu, Zihao Chen, Pin Song, Juan Peng, Bowen Ma, Haishi Liu, Peng Meng, Guidong Yang, Hua Zhang^*, Zheng Liu^*, Fucai Liu^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

140 Citations (Scopus)

Abstract

The development of ferroelectric photocatalytic materials with polarization electric field is a key approach to realize the spatial separation and fast transfer of charge carriers in visible-light-driven H₂ evolution. Generally, replacing traditional 3D perovskite-type ferroelectric materials with 2D ferroelectric materials is disregarded as candidates for photocatalysis. Herein a 2D CuInP₂S₆ (CIPS) with room-temperature ferroelectricity (a Curie temperature of around 47 °C) is developed as a new photocatalyst, and 2D/2D heterojunction of CuInP₂S₆ nanosheet/g-C₃N₄ ultrathin flake (CIPS/CN) is constructed to further accelerate charge transfer. Benefitting from the synergetic action of the inner polarization electric field of CIPS and 2D/2D heterojunction, CIPS/CN displays a substantially accelerated charge transfer and significantly enhanced photocatalytic H₂ evolution rate, which is up to 7.6 times by contrast with that of paraelectric-phase CIPS. This work would provide a new platform for the design of 2D ferroelectric photocatalytic system with highly-efficient charge transfer.

Original language	English
Article number	104972
Journal	Nano Energy
Volume	76
Online published	15 Jun 2020
DOIs	https://doi.org/10.1016/j.nanoen.2020.104972
Publication status	Published - Oct 2020

UN SDGs

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

SDG 7 Affordable and Clean Energy

Research Keywords

2D CuInP2S6
2D/2D heterojunction
Charge transfer
Ferroelectric
Polarization electric field

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10.1016/j.nanoen.2020.104972

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Lin, B., Chaturvedi, A., Di, J., You, L., Lai, C., Duan, R., Zhou, J., Xu, B., Chen, Z., Song, P., Peng, J., Ma, B., Liu, H., Meng, P., Yang, G., Zhang, H., Liu, Z., & Liu, F. (2020). Ferroelectric-field accelerated charge transfer in 2D CuInP₂S₆ heterostructure for enhanced photocatalytic H₂ evolution. Nano Energy, 76, Article 104972. https://doi.org/10.1016/j.nanoen.2020.104972

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title = "Ferroelectric-field accelerated charge transfer in 2D CuInP2S6 heterostructure for enhanced photocatalytic H2 evolution",

abstract = "The development of ferroelectric photocatalytic materials with polarization electric field is a key approach to realize the spatial separation and fast transfer of charge carriers in visible-light-driven H2 evolution. Generally, replacing traditional 3D perovskite-type ferroelectric materials with 2D ferroelectric materials is disregarded as candidates for photocatalysis. Herein a 2D CuInP2S6 (CIPS) with room-temperature ferroelectricity (a Curie temperature of around 47 °C) is developed as a new photocatalyst, and 2D/2D heterojunction of CuInP2S6 nanosheet/g-C3N4 ultrathin flake (CIPS/CN) is constructed to further accelerate charge transfer. Benefitting from the synergetic action of the inner polarization electric field of CIPS and 2D/2D heterojunction, CIPS/CN displays a substantially accelerated charge transfer and significantly enhanced photocatalytic H2 evolution rate, which is up to 7.6 times by contrast with that of paraelectric-phase CIPS. This work would provide a new platform for the design of 2D ferroelectric photocatalytic system with highly-efficient charge transfer.",

keywords = "2D CuInP2S6, 2D/2D heterojunction, Charge transfer, Ferroelectric, Polarization electric field, 2D CuInP2S6, 2D/2D heterojunction, Charge transfer, Ferroelectric, Polarization electric field, 2D CuInP2S6, 2D/2D heterojunction, Charge transfer, Ferroelectric, Polarization electric field",

author = "Bo Lin and Apoorva Chaturvedi and Jun Di and Lu You and Chen Lai and Ruihuan Duan and Jiadong Zhou and Baorong Xu and Zihao Chen and Pin Song and Juan Peng and Bowen Ma and Haishi Liu and Peng Meng and Guidong Yang and Hua Zhang and Zheng Liu and Fucai Liu",

year = "2020",

month = oct,

doi = "10.1016/j.nanoen.2020.104972",

language = "English",

volume = "76",

journal = "Nano Energy",

issn = "2211-2855",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Ferroelectric-field accelerated charge transfer in 2D CuInP2S6 heterostructure for enhanced photocatalytic H2 evolution

AU - Lin, Bo

AU - Chaturvedi, Apoorva

AU - Di, Jun

AU - You, Lu

AU - Lai, Chen

AU - Duan, Ruihuan

AU - Zhou, Jiadong

AU - Xu, Baorong

AU - Chen, Zihao

AU - Song, Pin

AU - Peng, Juan

AU - Ma, Bowen

AU - Liu, Haishi

AU - Meng, Peng

AU - Yang, Guidong

AU - Zhang, Hua

AU - Liu, Zheng

AU - Liu, Fucai

PY - 2020/10

Y1 - 2020/10

N2 - The development of ferroelectric photocatalytic materials with polarization electric field is a key approach to realize the spatial separation and fast transfer of charge carriers in visible-light-driven H2 evolution. Generally, replacing traditional 3D perovskite-type ferroelectric materials with 2D ferroelectric materials is disregarded as candidates for photocatalysis. Herein a 2D CuInP2S6 (CIPS) with room-temperature ferroelectricity (a Curie temperature of around 47 °C) is developed as a new photocatalyst, and 2D/2D heterojunction of CuInP2S6 nanosheet/g-C3N4 ultrathin flake (CIPS/CN) is constructed to further accelerate charge transfer. Benefitting from the synergetic action of the inner polarization electric field of CIPS and 2D/2D heterojunction, CIPS/CN displays a substantially accelerated charge transfer and significantly enhanced photocatalytic H2 evolution rate, which is up to 7.6 times by contrast with that of paraelectric-phase CIPS. This work would provide a new platform for the design of 2D ferroelectric photocatalytic system with highly-efficient charge transfer.

AB - The development of ferroelectric photocatalytic materials with polarization electric field is a key approach to realize the spatial separation and fast transfer of charge carriers in visible-light-driven H2 evolution. Generally, replacing traditional 3D perovskite-type ferroelectric materials with 2D ferroelectric materials is disregarded as candidates for photocatalysis. Herein a 2D CuInP2S6 (CIPS) with room-temperature ferroelectricity (a Curie temperature of around 47 °C) is developed as a new photocatalyst, and 2D/2D heterojunction of CuInP2S6 nanosheet/g-C3N4 ultrathin flake (CIPS/CN) is constructed to further accelerate charge transfer. Benefitting from the synergetic action of the inner polarization electric field of CIPS and 2D/2D heterojunction, CIPS/CN displays a substantially accelerated charge transfer and significantly enhanced photocatalytic H2 evolution rate, which is up to 7.6 times by contrast with that of paraelectric-phase CIPS. This work would provide a new platform for the design of 2D ferroelectric photocatalytic system with highly-efficient charge transfer.

KW - 2D CuInP2S6

KW - 2D/2D heterojunction

KW - Charge transfer

KW - Ferroelectric

KW - Polarization electric field

KW - 2D CuInP2S6

KW - 2D/2D heterojunction

KW - Charge transfer

KW - Ferroelectric

KW - Polarization electric field

KW - 2D CuInP2S6

KW - 2D/2D heterojunction

KW - Charge transfer

KW - Ferroelectric

KW - Polarization electric field

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U2 - 10.1016/j.nanoen.2020.104972

DO - 10.1016/j.nanoen.2020.104972

M3 - RGC 21 - Publication in refereed journal

SN - 2211-2855

VL - 76

JO - Nano Energy

JF - Nano Energy

M1 - 104972

ER -

Ferroelectric-field accelerated charge transfer in 2D CuInP₂S₆ heterostructure for enhanced photocatalytic H₂ evolution

Abstract

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Research Keywords

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