کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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728685 | 1461420 | 2014 | 6 صفحه PDF | دانلود رایگان |
Zinc oxide (ZnO) nanoflowers doped with cadmium ions was prepared by a hydrothermal method and the photocatalytic activities of the as-prepared samples for the rhodamine B (RhB) photo-degradation were investigated. The results we got are the crystal quality of the samples which are much weakened on increasing doping concentration from 5 to 20 at%. The absorption edge and the UV emission peak of the Cd-doped ZnO nanoflowers shifted to longer wavelength. It was also found that the band gap decreased from 3.24 eV to 3.06 eV. Especially, the 5% Cd-doped ZnO nanoflowers reached the highest photocatalytic activity which increased the rate of photocatalytic degradation of rhodamine B (RhB) up to 98% after 3 h of irradiation. And the photocatalytic activities of the 5% Cd-doped ZnO nanoflowers are higher than other samples.
Journal: Materials Science in Semiconductor Processing - Volume 26, October 2014, Pages 225–230