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Preparation and enhanced properties of ZrMOF@CdTe nanoparticles with high-density quantum dots
Frontiers of Materials Science ( IF 2.7 ) Pub Date : 2020-05-15 , DOI: 10.1007/s11706-020-0505-9
Xin Liu , Xiangling Ren , Longfei Tan , Wenna Guo , Zhongbing Huang , Xianwei Meng

ZrMOF@CdTe nanoparticles (NPs) with high fluorescence were synthesized by hydrothermal method. The morphology, particle size distribution, compositions, fluorescence properties and stability of the synthesized ZrMOF@CdTe were analyzed via the characterization by TEM, ICP-AES and fluorescence spectrophotometry, and the effects of the reaction time and pH value on the fluorescent property of ZrMOF@CdTe NPs were discussed. The results show that ZrMOFs could maintain its morphology and structure well during the process of loading CdTe quantum dots. With the increase of the loading reaction time, the red-shifted emission peaks of ZrMOF@CdTe NPs appear, and their fluorescence gradually changes from green to red color. With the increase of the pH value and temperature of the hydrothermal reaction, the fluorescence of ZrMOF@CdTe NPs was also consistent with the red-shifted change. The fluorescent property of ZrMOF@CdTe NPs could be remained for more than 3 months. Therefore, ZrMOF@CdTe NPs synthesized by the hydrothermal method have the characteristics of simple operation, adjustable fluorescent color and high stability, and the potential application in the fields of biological detection and sensing is expected.



中文翻译:

具有高密度量子点的ZrMOF @ CdTe纳米粒子的制备及增强性能

采用水热法合成了高荧光的ZrMOF @ CdTe纳米粒子。通过TEM,ICP-AES和荧光分光光度法对合成的ZrMOF @ CdTe的形貌,粒度分布,组成,荧光性质和稳定性进行了分析,以及反应时间和pH值对ZrMOF荧光性质的影响。讨论了@CdTe NP。结果表明,ZrMOFs在CdTe量子点加载过程中可以很好地保持其形态和结构。随着加载反应时间的增加,ZrMOF @ CdTe NPs出现红移的发射峰,其荧光逐渐从绿色变为红色。随着水热反应的pH值和温度的升高,ZrMOF @ CdTe NPs的荧光也与红移变化一致。ZrMOF @ CdTe NPs的荧光特性可以保留3个月以上。因此,通过水热法合成的ZrMOF @ CdTe NPs具有操作简单,荧光色可调,稳定性高的特点,有望在生物检测和传感领域中得到潜在应用。

更新日期:2020-05-15
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