稀土氟化物NaGdF4的形貌调控研究  

Morphology Control of Rare Earth Fluoride NaGdF4

作　　者：徐志芊 靖莹莹 符雨晴 谷星宇 卢丁兰 吴渊 XU Zhi-qian;JING Ying-ying;FU Yu-qing;GU Xing-yu;LU Ding-lan;WU Yuan(College of Life Science,Dalian Minzu University,Liaoning Dalian 116600,China)

机构地区：[1]大连民族大学生命科学学院,辽宁大连116600

出　　处：《广州化工》2021年第1期57-59,共3页GuangZhou Chemical Industry

基　　金：大连民族大学2020年省级大学生创新创业训练计划项目(202012026092)。

摘　　要：采用环境友好的水热方法,通过改变氟源(NaF、NH4F)和前驱体溶液的pH值,成功合成了具有不同形貌和尺寸的β-NaGdF4纳/微米晶体。整个反应以水溶液为反应介质,环保无毒,可以推广到其它稀土氟化物的合成策略中。通过掺杂不同的稀土离子,得到了多种颜色的上/下转换发光,并实现了纯近红外到近红外的上转换发光。基于这些材料优良的多色发光性质,因此使得它们在生物标记、成像以及显示领域具有潜在应用。An environmentally friendly hydrothermal methodology was employed to prepareβ-NaGdF 4 nano/microcrystals with diverse sizes and morphologies by changing F-sources(NaF,NH 4F)and pH values.Because the reaction was carried out in a water-based system,it provided a relatively green chemical alternative to the preparation of rare earth fluorides compared with the synthesis in the toxic organic solvents.Multicolor up/downconversion emissions can be obtained by doping different rare earth ions.Moreover,pure NIR-NIR upconversion emission in the Yb 3+/Tm 3+-codopedβ-NaGdF 4 crystal was successfully realized.These results not only enriched the contents of lanthanide fluoride chemistry,but also endowed this kind of materials with promising applications in multiple biolabels,and displaying owing to their multicolor luminescence features.

关 键 词：水热合成 稀土氟化物 NAGDF4 形貌调控 

分 类 号：O642[理学—物理化学]