Metathesis synthesis, characterization, spectral and photoactivity studies of Ln_(2/3)MoO_4(Ln=La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Er and Y)

查看全文 作　　者：Radha [1]Velchuri;Suresh [1]Palla;[1]G.Ravi;Naveen Kumar [1]Veldurthi;[1]J.R.Reddy;[1]M.Vithal

机构地区：[1]Department of Chemistry, Osmania University

出　　处：《Journal of Rare Earths》索引2015年第33卷第8期,共9页

基　　金：supported by Council of Scientific and Industrial Research(CSIR),New Delhi 摘　　要：Rare earth ortho-oxomolybdates of composition Ln2/3MoO 4(Ln=La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Er and Y) were prepared by metathesis reaction. All these materials were characterized by powder X-ray diffraction, Fourier transform-infrared spectroscopy(FT-IR) and UV-Vis diffuse reflectance spectra. The Rietveld analysis of all the samples was carried out to obtain the unit cell parameters and reliability factors. All the materials were crystallized in tetragonal lattice with I41/a space group. The infrared spectra of all the samples were characterized by bands due to MoO 2–4 units. The bandgap energies of all the samples were obtained from UV-Vis DRS spectra. The luminescence spectra of Ln2/3MoO 4(Ln=Pr, Eu and Dy) showed characteristic transitions of the rare earth ions. The visible light photocatalytic activity of all the samples was studied against degradation of methylene blue. 关键词：傅里叶变换红外光谱复分解反应光催化性能液氮 LA ND SM EU

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Metathesis synthesis, characterization, spectral and photoactivity studies of Ln_(2/3)MoO_4(Ln=La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Er and Y)

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