以La2O3、Eu2 O3和氨水等为原料,采用水热法合成了(La0.95 Eu0.05) (OH)3一维纳米线前驱体,并经适当煅烧制备了(La0.95 Eu0.05) 2O3红色荧光粉.系统考察了反应体系pH值对产物的影响.通过X射线衍射、红外光谱、场发射扫描电镜、高分辨透射电子显微镜和差热分析、荧光光谱分析等手段对产物进行了系统表征.结果表明所得氢氧化物纳米线具有多晶构造、表面平滑且结晶良好,其长度和直径分别约为800 ～ 1000nm和40 ～ 50 nm.该氢氧化物前驱体于800℃以上煅烧可分解为结晶良好的氧化物,且所得氧化物荧光粉在288 nm电荷转移带激发下于约630 nm处呈现鲜艳的红色荧光发射,归属于Eu3的5D0→7F2跃迁.
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