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Indexed by:期刊论文

Date of Publication:2008-06-15

Journal:MATERIALS LETTERS

Included Journals:SCIE、EI

Volume:62

Issue:16

Page Number:2359-2362

ISSN No.:0167-577X

Key Words:ZnO; nanomaterials; semiconductor; catalysts

Abstract:ZnO nanostructures with different morphology have been successfully fabricated by a simple relative low temperature approach at 90 degrees C for 5 h without surfactant assistance. These structures can be easily tailed using varied concentrations of sodium hydroxide (NaOH) and different amounts of the hydrazine hydrate (N(2)H(4)center dot H(2)O). X-ray diffraction (XRD) result proves the formation of ZnO with wurtzite structure. Microstructure as revealed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) indicates that the rod-like and chrysanthemum-like ZnO nanostructures contain many radial nanorods, which grow along the [0001] direction. Furthermore, the as-prepared ZnO nanomaterials exhibit high activity on the photo-catalytic degradation of typical persistent organic pollutants (POPs), indicating that they are promising as semiconductor photo-catalysts. (C) 2007 Elsevier B.V. All rights reserved.