Reducing Packing Factor of ZnIn2S4 to Promote Photocatalytic Activity

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

3 Scopus Citations
View graph of relations

Author(s)

  • Keyan HU
  • Zian XU
  • Yiting LIU
  • Fuqiang HUANG

Detail(s)

Original languageEnglish
Pages (from-to)1102–1107
Journal / PublicationChemical Research in Chinese Universities
Volume36
Issue number6
Online published20 Nov 2020
Publication statusPublished - Dec 2020

Abstract

Due to the quite sluggish charge-carrier separation in semiconductor photocatalysts, the photocatalytic activity of these materials is still far inferior than anticipated. Herein, a novel approach to reducing the packing factor(PF) of ZnIn2S4 semiconductors to improve the charge-carrier separation is offered. The well-crystallized Zn1-xIn2S4-x(x=0, 0.05, 0.1) powders were productively prepared through solid-state reactions. Their structures were verified by the high-resolution transmission electron microscopy, powder X-ray diffraction, and X-ray photoelectron spectroscopy. The PF values of Zn1-xIn2S4-x(x=0, 0.05, 0.1) samples were calculated to be 0.683, 0.651, and 0.618, respectively. The reduction of the PF for Zn1-xImS4-x with increasing x can promote the separation of photoexcited carriers, and this process was endorsed by their photoelectric response and photoluminescence emission spectra. The Zn0.9In2S3.9 sample with a lower PF value presents roughly 21 times higher photocurrent density and four times higher photodegrading rate of methyl orange than those of pristine ZnIn2S4.

Research Area(s)

  • Charge-carrier separation, Packing factor, Photocatalytic activity, Solid state reaction, Zn1-xIn2S4-x

Citation Format(s)

Reducing Packing Factor of ZnIn2S4 to Promote Photocatalytic Activity. / HU, Keyan; XU, Zian; LIU, Yiting et al.
In: Chemical Research in Chinese Universities, Vol. 36, No. 6, 12.2020, p. 1102–1107.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review