Journal
MATERIALS LETTERS
Volume 134, Issue -, Pages 119-122Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2014.07.065
Keywords
Ag nanoparticles; GaN microrods; Chemical vapor deposition; Photocatalytic activity
Funding
- National Natural Science Foundation of China [U1304110]
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Ag-loaded GaN microrods arrays were synthesized by chemical vapor deposition. The products were characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy and spectrofluorometry. The results show that Ag-loaded microrods with rough surface had a diameter of about 1.5 mu m. The obtained Ag-loaded GaN microrods were composed by face-centered-cubic metallic Ag and hexagonal wurtzite GaN. Comparisons of Ag-loaded GaN microrod arrays with pure sheet-like GaN displayed that the Ag-loaded GaN microrod arrays exhibited higher photocatalytic activity. The possible mechanisms of high photocatalytic activity should be ascribed to the added Ag nanoparticles act as a sink for photo-generated electrons. (C) 2014 Elsevier B.V. All rights reserved.
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