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首页> 外文期刊>ACS applied materials & interfaces >Preparation of Dual-Emitting Ln@UiO-66-Hybrid Films via Electrophoretic Deposition for Ratiometric Temperature Sensing
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Preparation of Dual-Emitting Ln@UiO-66-Hybrid Films via Electrophoretic Deposition for Ratiometric Temperature Sensing

机译：通过电泳沉积制备双发射LN @ UIO-66-混合膜，用于测量温度测量

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摘要

Engineering novel dual-emitting metal-organic frameworks (MOFs) with wide emission ranges for application as ratiometric temperature sensors is still a challenge. In this paper, two novel dual-emitting MOFs with intergrated lanthanide metals and luminescent ligand in a UiO-66-type structure, named Ln@UiO-66-Hybrid, were prepared via the combination of postsynthetic modification and postsynthetic exchange methods. Subsequently, the as-synthesized MOFs were deposited onto fluorine tin oxide substrates through electrophoretic deposition by taking advantage of the charges from the unmodified carboxylic groups of the MOFs. The as-prepared Tb@UiO-66-Hybrid and Eu@UiO-66-Hybrid films were applied to detect temperature changes. The resulting Tb@UiO-66-Hybrid film exhibited good temperature-sensing properties with a relative sensitivity of up to 2.76% K-1 in the temperature range of 303-353 K. In addition, the Eu@UiO-66-Hybrid film showed excellent temperature-sensing performance based on the energy transfer between the luminescent ligand (H2NDC) and europium ions with a relative sensitivity of up to 4.26% K-1 in the temperature range of 303-403 K.
机译：工程新颖的双发丝金属 - 有机框架（MOF）具有宽的施用范围，用于施加大率温度传感器仍然是一个挑战。在本文中，通过邮政的改性和后合交换方法的组合制备了两种具有嵌合镧系元素金属和发光配体的二种新的双发射MOF。随后，通过从MOF的未改性羧基的电荷通过电泳沉积沉积，通过电泳沉积沉积在氟锡氧化物基材上。应用AS制备的TB @ UIO-66-杂交和EU @ UIO-66-混合膜以检测温度变化。得到的TB @ UIO-66-杂化膜表现出良好的温度感应性能，相对敏感性高达2.76％K-1，在303-353k的温度范围内。此外，EU @ UIO-66-杂交膜基于发光配体（H2NDC）和铕离子之间的能量传递，在303-403k的温度范围内具有高达4.26％K-1的相对灵敏度的能量传递，呈优异的温度感应性能。

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