Issue 18, 2012

Ag2O–Bi2O3 composites: synthesis, characterization and high efficient photocatalytic activities

Abstract

Ag2O nanoparticle modified α-Bi2O3 composite photocatalysts were synthesized and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-vis diffuse reflectance spectroscopy. XRD patterns confirmed that the composites consist of cubic phase Ag2O and monoclinic α-Bi2O3 phase. The Ag2O loading was greatly increased due to the rough surface of the acid etched Bi2O3 microrods. Photocatalytic activity of the Ag2O–Bi2O3 composites was evaluated using the degradation of methyl orange (MO). The correlation between the Ag2O content and photocatalytic activity was estimated. The composite with Ag to Bi ratio of 3 : 1 as raw material showed the highest visible light activity and the enhancement mechanism was attributed to the separation of photoinduced electron and holes by the carrier transfer.

Graphical abstract: Ag2O–Bi2O3 composites: synthesis, characterization and high efficient photocatalytic activities

Supplementary files

Article information

Article type
Communication
Submitted
01 Mar 2012
Accepted
13 Jun 2012
First published
14 Jun 2012

CrystEngComm, 2012,14, 5705-5709

Ag2O–Bi2O3 composites: synthesis, characterization and high efficient photocatalytic activities

L. Zhu, B. Wei, L. Xu, Z. Lü, H. Zhang, H. Gao and J. Che, CrystEngComm, 2012, 14, 5705 DOI: 10.1039/C2CE25301A

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