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

Author(s)

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
Zheng Liu
Fucai Liu

Related Research Unit(s)

Detail(s)

Original language	English
Article number	104972
Journal / Publication	Nano Energy
Volume	76
Online published	15 Jun 2020
Publication status	Published - Oct 2020

Link(s)

DOI	DOI https://doi.org/10.1016/j.nanoen.2020.104972 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-85087109328&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(943224d7-2792-46b1-a9de-39411fd6e1a0).html

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.

Research Area(s)

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

SDG 7 - Affordable and Clean Energy

Citation Format(s)

[ RIS ] [ BibTeX ]

Ferroelectric-field accelerated charge transfer in 2D CuInP₂S₆ heterostructure for enhanced photocatalytic H₂ evolution. / Lin, Bo; Chaturvedi, Apoorva; Di, Jun et al.
In: Nano Energy, Vol. 76, 104972, 10.2020.

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

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, vol. 76, 104972. https://doi.org/10.1016/j.nanoen.2020.104972

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

Lin B, Chaturvedi A, Di J, You L, Lai C, Duan R et al. Ferroelectric-field accelerated charge transfer in 2D CuInP₂S₆ heterostructure for enhanced photocatalytic H₂ evolution. Nano Energy. 2020 Oct;76:104972. Epub 2020 Jun 15. doi: 10.1016/j.nanoen.2020.104972

Lin, Bo ; Chaturvedi, Apoorva ; Di, Jun et al. / Ferroelectric-field accelerated charge transfer in 2D CuInP₂S₆ heterostructure for enhanced photocatalytic H₂ evolution. In: Nano Energy. 2020 ; Vol. 76.