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MoS 2 quantum dots as a specific fluorescence sensor for selection of rutin and for temperature sensing
Author(s) -
Sun Yunyun,
He Wei,
Sun Xiangying,
Liu Bin
Publication year - 2020
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.3906
Subject(s) - rutin , fluorescence , quantum dot , detection limit , materials science , analytical chemistry (journal) , solubility , chemistry , quantum yield , hydrothermal circulation , nanotechnology , chromatography , chemical engineering , organic chemistry , physics , antioxidant , optics , engineering
A selective and sensitive method for detecting rutin using MoS 2 quantum dots (QDs) as a fluorescent probe is reported in the paper, a one‐step hydrothermal synthesis method was used to prepare MoS 2 QDs. The synthesized MoS 2 QDs had good stability and water solubility, and the fluorescence of MoS 2 QDs was quenched by rutin due to the inner filter effect. There was a good linear relationship between the intensity of MoS 2 QDs and rutin concentration ranging from 5.0 × 10 −7 to 3.2 × 10 −5 mol/L with a detection limit of 3.5 × 10 −7 mol/L. MoS 2 QDs showed temperature‐dependent fluorescence that had an excellent linear relationship between 20 and 80°C. Therefore MoS 2 QDs can be used as specific fluorescence sensors for selection of rutin and for temperature sensing.