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| 1 | Ion imprinted polymer particles of neodymium:synthesis,characterization and selective recognition显示文摘Neodymium ion imprinted polymer(Nd3+-IIP) particles for selective solid-phase extraction of Nd3+ were prepared and determined with inductively coupled plasma atomic emission spectrometry(ICP-AES).The unleached Nd3+-IIP particles were prepared by the copoly-merization of Nd3+-5,7-dichloroquinoline-8-ol-4-vinylpyridine ternary complex with styrene and divinyl benzene, then Nd3+ was leached to obtain Nd3+-IIP particles.The adsorption capacity of the Nd3+-IIP was 35.18 mg/g.The largest selectivity coefficient for Nd3+ in the presence of competitive ions such as La3+, Ce3+, Pr3+ and Sm3+ was over 110.The proposed method was validated by analyzing two certified reference materials(GBW07301a sediment and GBW07401 soil) and the determined values were in a good agreement with standard values.The method was convenient, selective, sensitive and applicable to the determination of trace Nd3+ in environmental samples with complicated matrix. | 郭佳佳 蔡继宝 苏庆德 | 2009 | Journal of Rare Earths2009，27，1： | 11 |
| 2 | Dy2O3–CaF2对AlN陶瓷制备、结构及性能的影响显示文摘以AlN粉体为原料,采用无压烧结,选取二元烧结助剂Dy2O3–CaF2在1 800℃氮气气氛下烧结AlN陶瓷,利用Archimedes排水法、X射线衍射、扫描电子显微镜、激光导热分析仪和万能材料试验机对烧结的AlN陶瓷的密度、热性能和力学性能进行了测试,并对AlN陶瓷的物相变化和微观结构进行了表征。结果表明:添加二元烧结助剂Dy2O3–CaF2可以有效促进AlN陶瓷致密化以及晶粒的生长发育,降低AlN陶瓷的烧结温度,改善AlN陶瓷的导热性能。当添加2.5%(质量分数)Dy2O3+1.5%(质量分数)CaF2在1 800℃氮气气氛下常压烧结2 h时,制备出了晶粒发育良好、结晶良好,相对密度99.6%,热导率169 W/(m·K),同时具有较高的机械强度的AlN陶瓷。 | 汪暾 谢建军 戴圣洪 丁毛毛 王宇 施誉挺 周鼎 施鹰 | 2018 | 硅酸盐学报2018，46，6： | 1 |
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