Metathesis synthesis, characterization, spectral and photoactivity studies of Ln2/3MoO4 （Ln=La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Er and Y）
Rare earth ortho-oxomolybdates of composition Ln2/aMoO4 （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...
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| Published in | 中国稀土学报：英文版 Vol. 33; no. 8; pp. 837 - 845 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
2015
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| Subjects | |
| Online Access | Get full text |
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| Abstract | Rare earth ortho-oxomolybdates of composition Ln2/aMoO4 （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 MoO42 units. The bandgap energies of all the samples were obtained from UV-Vis DRS spectra. The luminescence spectra of Ln2/3MoO4 （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. |
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| AbstractList | Rare earth ortho-oxomolybdates of composition Ln2/aMoO4 （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 MoO42 units. The bandgap energies of all the samples were obtained from UV-Vis DRS spectra. The luminescence spectra of Ln2/3MoO4 （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. |
| Author | Radha Velchuri Suresh Palla G. Ravi Naveen Kumar Veldurthi J.R. Reddy M. Vithal |
| AuthorAffiliation | Department of Chemistry, Osmania University, Hyderabad- 500 007, India |
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| DocumentTitleAlternate | Metathesis synthesis, characterization, spectral and photoactivity studies of Ln2/3MoO4 （Ln=La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Er and Y） |
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| Notes | 11-2788/TF Rare earth ortho-oxomolybdates of composition Ln2/aMoO4 （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 MoO42 units. The bandgap energies of all the samples were obtained from UV-Vis DRS spectra. The luminescence spectra of Ln2/3MoO4 （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. metathesis; X-ray diffxaction; IR spectroscopy; UV-Vis spectroscopy; photodegradation; rare earths |
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| PublicationTitle | 中国稀土学报：英文版 |
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| Snippet | Rare earth ortho-oxomolybdates of composition Ln2/aMoO4 （Ln=La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Er and Y） were prepared by metathesis reaction. All these materials... |
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| SubjectTerms | 傅里叶变换红外光谱 光催化性能 复分解反应 液氮 |
| Title | Metathesis synthesis, characterization, spectral and photoactivity studies of Ln2/3MoO4 （Ln=La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Er and Y） |
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