کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5359047 | 1503633 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Layer structured Na2Ni(MoO4)2 particles as a visible-light-driven photocatalyst for degradation of methylene blue
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A new visible-light-driven photocatalyst of Na2Ni(MoO4)2 particle was prepared by the modified Pechini method. The crystal structure was measured by X-ray diffraction (XRD) and the structural refinement. The sample was investigated by scanning electron microscope (SEM), transmission electron microscopy (TEM), and UV-vis absorption spectrum measurements. The average size of Na2Ni(MoO4)2 particle is about 180Â nm. Na2Ni(MoO4)2 particle have an efficient optical absorption in the UV-visible light wavelength region with a direct allowed electronic transition of 2.06Â eV. The effective photodegradation of methylene blue (MB) dye was demonstrated, which benefits from the special crystal structure of Na2Ni(MoO4)2 particle. This crystal lattice has two infinite chains formed by (Ni,Na)O6 and MoO4 polyhedra standing in lines alone with the inner wall of the hexagonal tunnels. This results in the efficient optical absorption and provides more chances for electron-hole separations, which can further react with dye molecules to oxidize the dye pollutant into non-toxic products.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 331, 15 March 2015, Pages 72-78
Journal: Applied Surface Science - Volume 331, 15 March 2015, Pages 72-78
نویسندگان
Yuting Lu, Luyang Chen, Yanlin Huang, Cuili Chen, Sun Il Kim, Hyo Jin Seo,