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WO 3 -ZnO and CuO-ZnO nanocomposites as highly efficient photoanodes under visible light illumination
We prepared ZnO nanocomposites with WO or CuO nanostructures to improve the photocatalytic performance of ZnO nanostructures. Characterization of the nanocomposites using scanning electron microscopy, x-ray diffraction, UV-vis spectrometry and photoluminescence revealed the morphologies and wide lig...
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Published in: | Nanotechnology 2020-04, Vol.31 (25), p.255702 |
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Main Authors: | , , , , , , , , , , , , |
Format: | Article |
Language: | English |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | We prepared ZnO nanocomposites with WO
or CuO nanostructures to improve the photocatalytic performance of ZnO nanostructures. Characterization of the nanocomposites using scanning electron microscopy, x-ray diffraction, UV-vis spectrometry and photoluminescence revealed the morphologies and wide light absorption range of the materials. The highest current densities of WO
/ZnO and CuO/ZnO nanocomposites were 1.28 mA cm
and 2.49 mA cm
at 1.23 V (versus a reversible hydrogen electrode) under AM 1.5 100 mW cm
, which are ~1.2- and 3.5-fold greater than those of bare ZnO nanostructures, respectively. The easy fabrication process suggests that nanocomposites with narrow bandgap materials, such as WO
and CuO, will improve the performance of electrochemical and optoelectrical devices such as dye-sensitized solar cells and biosensors. |
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ISSN: | 0957-4484 1361-6528 |
DOI: | 10.1088/1361-6528/ab7d75 |