Issue 12, 2013
From the journal:

Nanoscale

Metal nanoparticle-loaded hierarchically assembled ZnO nanoflakes for enhanced photocatalytic performance†

Wei Li Ong,a   Srinivasan Natarajan,a   Bradley Kloostrab  and  Ghim Wei Ho*a  

* Corresponding authors

a Department of Electrical and Computer Engineering, Faculty of Engineering, National University of Singapore, Singapore
E-mail: elehgw@nus.edu.sg
Fax: +65 67754710
Tel: +65 65168121

b Faculty of Applied Science and Engineering, University of Toronto, Toronto, M5S1A4 Canada

Abstract

We have demonstrated an environmentally friendly and template-free aqueous synthesis of hierarchically assembled 3D ZnO nanoflakes. The ZnO nanoflakes self-assembled to expose highly interconnected networks of well-defined catalytic active {0001} facets. Well dispersed Pt, Ag and Au metal nanoparticles were loaded to form hybrid ZnO nanoflakes for enhanced photocatalytic activity. The enhanced photocatalytic activity may be attributed to the synergetic effects of well-structured ZnO crystal facets, high metal nanoparticles dispersity, enhanced light absorption and charge-transfer kinetics which leads to high photocatalytic degradation.

Graphical abstract: Metal nanoparticle-loaded hierarchically assembled ZnO nanoflakes for enhanced photocatalytic performance

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Article information

DOI
https://doi.org/10.1039/C3NR00043E
Article type
Paper
Submitted
04 Jan 2013
Accepted
06 Apr 2013
First published
12 Apr 2013

Nanoscale, 2013,5, 5568-5575

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Metal nanoparticle-loaded hierarchically assembled ZnO nanoflakes for enhanced photocatalytic performance

W. L. Ong, S. Natarajan, B. Kloostra and G. W. Ho, Nanoscale, 2013, 5, 5568 DOI: 10.1039/C3NR00043E

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