A novel ratiometric fluorescent probe for water content in ethanol and temperature sensing

被引：9

作者：

Sun, Xiangying ^{[1
]}

Cai, Lifen ^{[1
]}

He, Wei ^{[1
]}

Cao, Xuegong ^{[1
]}

Liu, Bin ^{[1
]}

Wang, Huaiqian ^{[2
]}

机构：

[1] Huaqiao Univ, Coll Mat Sci & Engn, Key Lab Mol Designing & Green Convers, Xiamen 361021, Peoples R China

[2] Huaqiao Univ, Coll Engn, Quanzhou 362021, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2022年 / 264卷

关键词：

Tetrahydro[5]helicene-based dyes; Carbon dots; Water content; Temperature; METAL-ORGANIC FRAMEWORKS; CARBON DOTS; DUAL-EMISSION; QUANTUM-DOTS; PHOTOPHYSICAL PROPERTIES; GOLD NANOCLUSTERS; VISUAL DETECTION; CHARGE-TRANSFER; SOLVENTS; GRAPHENE;

D O I：

10.1016/j.saa.2021.120266

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

In this paper, two tetrahydo[5]helicene-based dyes (THH1 and THH2) were studied on their twist intramolecular charge transfer. And the water-soluble blue carbon dots (N-CDs) were synthesized. Considering that their different optical propeties, the ratiometric fluorescence probes N-CDs/THH1 and N-CDs/THH2 were constructed by mixing N-CDs and dyes simply. It was found that N-CDs/THH1 and N-CDs/THH2 could quickly and sensitively detect water content in ethanol, with linear range of 0.500 25.0 vol% and 0.50030.0 vol%, respectively. Whats more, through the actual sample test, it showed that the detection had good accuracy and precision. At the same time, it was found that two ratiometric probes could also be applied to the thermometry with good reversibility based on optical temperature sensors. (c) 2021 Elsevier B.V. All rights reserved.

引用

页数：8

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