Issue 126, 2015

Au nanoparticle homogeneously decorated C@TiO2 for enhanced visible-light-driven photocatalytic activity

Abstract

Highly efficient visible-light-driven photocatalysts i.e. Au–C@TiO2 have been prepared by a facile and reproducible impregnation–precipitation process. The structure and properties of the photocatalysts were characterized by HRTEM, EDS elemental mapping, XPS, UV-vis and PL techniques. It is found that 6 nm-sized Au nanoparticles are homogeneously decorated within amorphous C@TiO2. The amorphous carbon shell has been demonstrated to be able to extend the photoresponse range of C@TiO2. The plasmonic Au nanoparticles loaded within C@TiO2 greatly improve visible light absorption, charge separation efficiency and transfer of photogenerated electrons and holes. As a result, in the degradation experiments of RhB and 1-NP, the visible-light photocatalytic activity of Au-decorated C@TiO2 can be greatly enhanced by Au nanoparticles and a carbon shell. We envision that such a high efficiency Au–C@TiO2 photocatalyst prepared via a facile impregnation–precipitation method may be a promising candidate for organic pollutant degradation.

Graphical abstract: Au nanoparticle homogeneously decorated C@TiO2 for enhanced visible-light-driven photocatalytic activity

Supplementary files

Article information

Article type
Paper
Submitted
07 Oct 2015
Accepted
23 Nov 2015
First published
24 Nov 2015

RSC Adv., 2015,5, 103790-103796

Au nanoparticle homogeneously decorated C@TiO2 for enhanced visible-light-driven photocatalytic activity

Y. Zheng, Y. Xu, H. Fang, Y. Wang and X. Tao, RSC Adv., 2015, 5, 103790 DOI: 10.1039/C5RA20737A

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