Jump to main content
Jump to site search


Fabrication of the ternary heterojunction Cd0.5Zn0.5S@UIO-66@g-C3N4 for enhanced visible-light photocatalytic hydrogen evolution and degradation of organic pollutants

Author affiliations

Abstract

A novel ternary heterojunction Cd0.5Zn0.5S@UIO-66@g-C3N4 (Cd0.5Zn0.5S@UCN) has been prepared by the in situ hydrothermal and precipitation approach, which exhibits superior photocatalytic activity for H2 generation and MO degradation under visible-light irradiation. The Cd0.5Zn0.5S@UCN30 composite shows the maximum photocatalytic H2 production rate (1281.1 μmol h−1 g−1) that is about 32.9 and 2.7 times higher than UIO-66@g-C3N4 and pristine Cd0.5Zn0.5S, respectively. Besides, the Cd0.5Zn0.5S@UCN30 heterojunction indicates the superior degradation efficiency of MO (82%) in 120 min. The improved photocatalytic activity of the Cd0.5Zn0.5S@UCN heterostructure can be assigned to its large surface area, enhanced visible-light absorption ability and high-efficiency separation of photogenerated electron–hole pairs, which are proved by the results of photocurrent and EIS analyses. Moreover, the photocatalytic mechanism based on the ternary heterojunction Cd0.5Zn0.5S@UCN is discussed and the transfer and separation process of photogenerated electron–hole pairs is also proposed. This work demonstrates that a novel ternary noble-metal-free photocatalytic system could provide a scientific basis for the application in the field of energy production and pollution removal.

Graphical abstract: Fabrication of the ternary heterojunction Cd0.5Zn0.5S@UIO-66@g-C3N4 for enhanced visible-light photocatalytic hydrogen evolution and degradation of organic pollutants

Back to tab navigation

Supplementary files

Publication details

The article was received on 16 Oct 2017, accepted on 21 Nov 2017 and first published on 27 Nov 2017


Article type: Research Article
DOI: 10.1039/C7QI00638A
Citation: Inorg. Chem. Front., 2018, Advance Article
  •   Request permissions

    Fabrication of the ternary heterojunction Cd0.5Zn0.5S@UIO-66@g-C3N4 for enhanced visible-light photocatalytic hydrogen evolution and degradation of organic pollutants

    Q. Liang, J. Jin, C. Liu, S. Xu, C. Yao and Z. Li, Inorg. Chem. Front., 2018, Advance Article , DOI: 10.1039/C7QI00638A

Search articles by author

Spotlight

Advertisements