کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1482712 | 1510495 | 2010 | 5 صفحه PDF | دانلود رایگان |
CdS/niobate composite synthesized by exfoliation/self-assembly processing was first reported. The processing presents two steps, namely (i) restacking of [Ca2Nb3O10]nn− nanosheets in Cd(NH3)42+ solution and (ii) forming of CdS/niobate composite by adding Na2S to the (i) reacting system. The as-prepared composite of CdS/niobate can be indexed to tetrahedral symmetry (lattice parameters, a 5.462(5) Å; c 17.3303(1) Å) on basis of X-Ray powder diffraction result. The scanning electron microscope and energy dispersive spectrometer observation demonstrates the uniform distributions of Ca, Nb, O, Cd, and S elements in the particles. The UV–vis absorption edge of the CdS/niobate composite (CdS coated with host niobate) shows blue shift (shifts to high energy) compared with that of the uncoated CdS particles.
Journal: Journal of Non-Crystalline Solids - Volume 356, Issues 25–27, 1 June 2010, Pages 1272–1276