摘要:以Ce(NO3)3·6H2O,Pr6O11为主要原料,利用低温燃烧-水热合成制备了具有纳米晶粒的Pr-CeO2红色稀土颜料。通过XRD,SEM,EDS,XPS对制备出的Pr-CeO2红色稀土颜料进行了测试分析。结果表明:Pr掺杂进入CeO2晶格,形成固溶体,为单一相的萤石型结构。Pr主要是以+3价的形式存在于Pr-CeO2固溶体中,该固溶体中未发现+4价的Pr。水热处理后的颜料粉体晶粒发育更完整,尺寸更均匀,平均尺寸为16.70nm,粉料的呈色性能比水热处理前有明显改善。
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