CuxO (x = 1, 2) nanocrystals have been synthesized by the composite-hydroxide-mediated approach. The obtained nanocrystals were characterized by X-ray diffraction, energy dispersive X-ray spectroscopy, scanning electron microscopy, transmission electron microscopy, and UV-vis spectrum. The morphology of the nanocrystals changed from sphere-shaped nanostructures to flower-shaped nanostructures, and finally to nanowires associated with phase transformation from CuO to Cu2O by increasing the temperature. The possible phase transformation mechanism was discussed. The catalytic degradation activity of the CuxO (x = 1, 2) nanocrystals to methyl orange was also investigated. The photocatalytic ability of the sphere-shaped nanostructures is much higher than that of the nanowires, owing to its absorption of wider range of light energy. This work provides a new facile synthesis route of CuxO (x = 1, 2) nanocrystals and suggests their possible application in organic pollutants removal.
|Original language||English (US)|
|Number of pages||5|
|Journal||Materials Science and Engineering B: Solid-State Materials for Advanced Technology|
|State||Published - Jan 15 2010|
Bibliographical noteFunding Information:
This work has been funded by the NSFC ( 60976055 , 20741006 ), and Chongqing University Postgraduates’ Science and Innovation Fund ( 200801C1A0080267 ) and Innovative Talent Training Project (S-09109) of the 3rd 211 Project. The authors thank Ben Weintraub in MSE at Georgia Tech for English language editing.
Copyright 2020 Elsevier B.V., All rights reserved.
- Catalytic degradation
- CuO (x = 1, 2) nanocrystals