Issue 12, 2016

Ag nanoparticles/hematite mesocrystals superstructure composite: a facile synthesis and enhanced heterogeneous photo-Fenton activity

Abstract

Mesocrystals, as a new class of crystals, compared to the more common single crystals and polycrystalline systems, have attracted unparalleled attention owing to their unique ordered superstructure. Herein, uniform, highly crystalline, nanoporous and cocoon-like hematite mesocrystals have been fabricated through a facile template-free approach in benzyl alcohol. They showed a relatively large surface area of 18.8 m2 g−1 and an average pore size of 3.67 nm, which was within the range of hole diffusion lengths (2–4 nm) of α-Fe2O3. The loading of Ag nanoparticles on the α-Fe2O3 mesocrystals had no distinct effect on the surface area and pore distribution. The results of photoluminescence and photoelectrochemical measurements indicated that the synergistic effect of the suitable pore size and Ag nanoparticles resulted in effective charge carrier transfer. Thus, the Ag/hematite mesocrystal composites displayed high photo-Fenton activity in the oxidation of Rhodamine B, methyl orange and glyphosate under visible light.

Graphical abstract: Ag nanoparticles/hematite mesocrystals superstructure composite: a facile synthesis and enhanced heterogeneous photo-Fenton activity

Supplementary files

Article information

Article type
Paper
Submitted
12 Jan 2016
Accepted
16 Jan 2016
First published
18 Jan 2016

Catal. Sci. Technol., 2016,6, 4184-4191

Ag nanoparticles/hematite mesocrystals superstructure composite: a facile synthesis and enhanced heterogeneous photo-Fenton activity

X. Chen, F. Chen, F. Liu, X. Yan, W. Hu, G. Zhang, L. Tian, Q. Xia and X. Chen, Catal. Sci. Technol., 2016, 6, 4184 DOI: 10.1039/C6CY00080K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements