Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 27th March 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 6, 2019
Previous Article Next Article

Ultrathin CdS shell-sensitized hollow S-doped CeO2 spheres for efficient visible-light photocatalysis

Author affiliations

Abstract

Highly efficient photocatalysts are urgently needed with the ever-increasing problems of environmental pollution and the energy crisis. Herein, we report a shape-controlled binary photocatalyst consisting of S-doped CeO2 hollow spheres sensitized with ultrathin CdS shells. The core-shelled CeO2−xSx@CdS composite is synthesized using a simple template-assisted method followed by anion-exchange and chemical bath deposition processes. Owing to the reduced band gap caused by the oxygen vacancies in the S-doped CeO2, and the CdS sensitization effect accelerating the interface carrier separation and transfer, the CeO2−xSx@CdS composite exhibits superior photocatalytic activity for hydrogen evolution (1147.2 μmol g−1 h−1) under visible-light illumination, which is 4.4, 11.1 and 94.8 times higher than that of CdS (258.2 μmol g−1 h−1), CeO2−xSx (103.0 μmol g−1 h−1) and CeO2 (12.1 μmol g−1 h−1), respectively. In addition, the composite displays highly efficient organic pollutant degradation (99.8% degradation of RhB within 25 min).

Graphical abstract: Ultrathin CdS shell-sensitized hollow S-doped CeO2 spheres for efficient visible-light photocatalysis

Back to tab navigation

Supplementary files

Publication details

The article was received on 25 Oct 2018, accepted on 23 Dec 2018 and first published on 26 Dec 2018


Article type: Paper
DOI: 10.1039/C8CY02206B
Citation: Catal. Sci. Technol., 2019,9, 1357-1364

  •   Request permissions

    Ultrathin CdS shell-sensitized hollow S-doped CeO2 spheres for efficient visible-light photocatalysis

    N. Zheng, T. Ouyang, Y. Chen, Z. Wang, D. Chen and Z. Liu, Catal. Sci. Technol., 2019, 9, 1357
    DOI: 10.1039/C8CY02206B

Search articles by author

Spotlight

Advertisements