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

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

1 Scopus Citations
View graph of relations

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

Detail(s)

Original languageEnglish
Article number104972
Journal / PublicationNano Energy
Volume76
Online published15 Jun 2020
Publication statusOnline published - 15 Jun 2020

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

Citation Format(s)

Ferroelectric-field accelerated charge transfer in 2D CuInP2S6 heterostructure for enhanced photocatalytic H2 evolution. / Lin, Bo; Chaturvedi, Apoorva; Di, Jun; You, Lu; Lai, Chen; Duan, Ruihuan; Zhou, Jiadong; Xu, Baorong; Chen, Zihao; Song, Pin; Peng, Juan; Ma, Bowen; Liu, Haishi; Meng, Peng; Yang, Guidong; Zhang, Hua; Liu, Zheng; Liu, Fucai.

In: Nano Energy, Vol. 76, 104972, 10.2020.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal