Jump to main content
Jump to site search


Controllable synthesis and photoreduction Cr(VI) performance of BiOCl microrods with exposed (110) crystal facets

Abstract

Bismuth oxyhalides have been of great interest since they induce strong internal static electric field and promote the effective separation of the photoinduced electron-hole pairs, which enable a good photocatalytic performance. However, simple synthesis and well-controllable facet exposed remain great challenge. Here, a BiOCl microrod was synthesized via a simple hydrothermal method using sodium citrate as capping agent. High transmission electron microscopy (HRTEM) images show that the BiOCl microrod exposes (110) facets (BiOCl-110) and grows along [1ī2] orientation. The X-ray photoelectron spectrum (XPS) and FT-IR spectra show a number of citrate ions on the surface of BiOCl-110. The Ostwald Ripening growth mechanism of BiOCl-110 has been demonstrated in our study. In addition, the photocatalytic performance of the BiOCl-110 was evaluated by degradation hexavalent chromium (Cr(VI)) under solar light irradiation. As a result, BiOCl-110 exhibits more excellent photoreduction performance of Cr(VI) than BiOCl-001, and Cr (VI) with concentration of 30 mg/L can be completely photoreduced within 4 and 10 min at acid and neutral conditions, respectively. This enhanced photoreduction performance is ascribed to the more negative conductive band position of (110) crystal facets which enhances the reductive ability of photoelectrons.

Back to tab navigation

Supplementary files

Publication details

The article was received on 04 Jul 2018, accepted on 11 Sep 2018 and first published on 12 Sep 2018


Article type: Paper
DOI: 10.1039/C8NJ03323D
Citation: New J. Chem., 2018, Accepted Manuscript
  •   Request permissions

    Controllable synthesis and photoreduction Cr(VI) performance of BiOCl microrods with exposed (110) crystal facets

    Y. peng, Y. G. mao, P. F. kan, Z. Fang and J. Y. Liu, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ03323D

Search articles by author

Spotlight

Advertisements