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

School of Chemical Engineering and Technology

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

138 Scopus citations

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
DOIs	https://doi.org/10.1016/j.nanoen.2020.104972
State	Published - Oct 2020

Keywords

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

UN SDGs

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

Access to Document

10.1016/j.nanoen.2020.104972

Cite this

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 CuInPS, 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",

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year = "2020",

month = oct,

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

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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 CuInPS

KW - 2D/2D heterojunction

KW - Charge transfer

KW - Ferroelectric

KW - Polarization electric field

UR - https://www.scopus.com/pages/publications/85087109328

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DO - 10.1016/j.nanoen.2020.104972

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