کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1490100 | 992318 | 2012 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: ZnWO4–Cu system with enhanced photocatalytic activity by photo-Fenton-like synergistic reaction ZnWO4–Cu system with enhanced photocatalytic activity by photo-Fenton-like synergistic reaction](/preview/png/1490100.png)
A novel coupled system of ZnWO4–Cu, combining two different advanced oxidation processes of photocatalysis and Fenton-like for the degradation of organic dyes, was successfully synthesized. The as-synthesized samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS). The nanosized ZnWO4–Cu samples exhibited much higher catalytic activity than pure ZnWO4. In the presence of the ZC-0.2, the MB solution was completely degraded (the degradation ratio reached 97.79%); while for the ZC-0, the degradation ratio was only 72.29%. The effects of the amount of Cu on the photocatalytic performance of ZnWO4–Cu were investigated in detail. The result showed that the synergistic effect between Cu and ZnWO4 played a key role. The possible mechanism of the synergistic system was proposed.
Figure optionsDownload as PowerPoint slideHighlights
► A novel coupled system of ZnWO4–Cu exhibited much higher catalytic activity than pure ZnWO4 with H2O2 under UV-light irradiation.
► The enhanced catalytic activity of ZnWO4–Cu system was due to the synergistic effect of photocatalysis and Fenton-like process.
► The possible mechanism of the synergistic effect was proposed.
Journal: Materials Research Bulletin - Volume 47, Issue 11, November 2012, Pages 3296–3300