Preparation and IR Spectra Study of Rare Earth Orthophosphates
来源期刊：Journal of Rare Earths2007年第S1期
论文作者：陆春华 胡洁 许仲梓 倪亚茹
文章页码：273 - 276
摘 要：By liquid precipitation, lanthanide element orthophosphate was prepared and heat-treated at a series of temperatures. By FT-IR and XRD, it is found that bands near 1000 and 540 cm-1 split above 800 ℃ for the rare earth before Tb, since the system turned from hexagonal phase to monoclinic phase. For those after Tb, obvious tetragonal phase could be found above 800 ℃. In infrared spectra, with the increasing atomic number, bands turned to be blue shift. So rare earth orthophosphates′ absorption bands could be controlled by changing their heat-treating temperature or the proportion of different rare earth ions.
陆春华，胡洁，许仲梓，倪亚茹
摘 要：By liquid precipitation, lanthanide element orthophosphate was prepared and heat-treated at a series of temperatures. By FT-IR and XRD, it is found that bands near 1000 and 540 cm-1 split above 800 ℃ for the rare earth before Tb, since the system turned from hexagonal phase to monoclinic phase. For those after Tb, obvious tetragonal phase could be found above 800 ℃. In infrared spectra, with the increasing atomic number, bands turned to be blue shift. So rare earth orthophosphates′ absorption bands could be controlled by changing their heat-treating temperature or the proportion of different rare earth ions.
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