Hierarchical Architectured Ternary Nanostructures Photocatalysts with In(OH)3 Nanocube on ZnIn2S4/NiS Nanosheets for Photocatalytic Hydrogen Evolution

Lin Ye, Zhenhai Wen, Zhaohui Li, Haitao Huang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)

Abstract

Charge carriers separation and surface catalytic reactions are two crucial steps in photocatalytic processes; the rational design of photocatalysts by taking these two factors into consideration is thus of great importance to advance the associated performance. Herein, a self-sacrificial strategy is developed to fabricate a ternary nanostructure photocatalyst, forming a hierarchical architecture of In(OH)3 nanocube decorated NiS-ZnIn2S4 (ZIS) hybrid nanosheets (ZIS/In(OH)3-NiS). Such a unique structure provides the hybrid photocatalyst with a facilitated path for efficiently separating the charge carrier and abundant sites for catalytic reactions. Systematic characterizations that reveal the strong electronic interactions in the ternary ZIS/In(OH)3-NiS leads to fast electron transfer from excited ZnIn2S4 to NiS nanosheets, which provide catalytic sites for hydrogen evolution reaction. The comprehensive photocatalysis studies demonstrate that ZnIn2S4/In(OH)3-NiS exhibits ultrahigh photocatalytic activity toward hydrogen generation with a high rate of 7010 μmol g−1h−1, which ranks as one of the highest among ZnIn2S4-based photocatalysts reported so far. This work provides an attractive and effective way to develop high-activity photocatalysts without using precious metal cocatalysts. The investigation brings us one step closer to understanding the structure-determining properties of nanohybrid architecture, and provides a valuable reference to develop cost-effective and practical photocatalysts for a variety of applications.

Original languageEnglish
Article number2000027
JournalSolar RRL
Volume4
Issue number8
DOIs
Publication statusPublished - 1 Aug 2020

Keywords

  • cocatalysts
  • H evolution
  • photocatalysts
  • visble light
  • ZnInS

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Energy Engineering and Power Technology
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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