eu‑mofs/cds two-color fluorescent material and its preparation and application
A two-color fluorescence, eu-mofs technology, applied in luminescent materials, fluorescence/phosphorescence, material excitation analysis, etc., can solve problems such as unsatisfactory sensitivity of fluorescence sensors, and achieve the effects of convenient post-processing, simple synthesis route, and low cost investment.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0035] 26 mL of DMF, 2 mL of cyclohexanol and 2 mL of distilled water were mixed as solvent; 33.8 mg of europium nitrate (Eu(NO 3 ) 3 ), 21 mg H 3 BTC and 2.4 mg of carbon-based quantum dots co-doped with nitrogen and sulfur elements (N,S-CDs) were dissolved in the obtained solvent; after the dissolution was uniform, 0.1 mL of dibutylamine and 0.15 mL of HNO 3Adjust the pH value of the solution to 5; stir the prepared mixed solution at room temperature for 2 h, put the mixed solution in an oven, heat to 85 °C under normal pressure and keep the reaction for 16 h; centrifuge after the reaction, the obtained precipitate Washed with DMF and ethanol in sequence, centrifuged three times, and vacuum-dried at 80 ℃ for 5 hours to prepare Eu-MOFs / N,S-CDs two-color fluorescent material, which is based on rare earth metal-organic framework complex-carbon-based quantum dot organic solvent water content fluorescence Colorimetric sensor.
Embodiment 2
[0037] Mix 18 mL of DMF, 6 mL of cyclohexanol, and 6 mL of distilled water as a solvent; 2.6 mg of europium chloride (EuCl 3 ), 2.1 mg H 3 BTC and 0.3 mg of carbon-based quantum dots co-doped with nitrogen and sulfur elements (N,S-CDs) were dissolved in the obtained solvent; after the dissolution was uniform, 0.003 mL of dibutylamine and 0.3 mL of HNO 3 Adjust the pH value of the solution to 4; stir the prepared mixed solution at room temperature for 0.5 h, put the mixed solution in an oven, heat it to 60 °C under normal pressure, and keep the reaction for 48 h; centrifuge after the reaction, the obtained The precipitate was washed with DMF and ethanol in sequence, centrifuged three times, and then vacuum-dried at 50 ℃ for 5 hours to obtain Eu-MOFs / N,S-CDs two-color fluorescent material, which is based on the organic solvent water content of rare earth metal organic framework complex-carbon-based quantum dots Fluorescent colorimetric sensor.
Embodiment 3
[0039] 27 mL of DMF, 2.7 mL of cyclohexanol and 0.3 mL of distilled water were mixed as solvent; 446 mg of europium nitrate hexahydrate (Eu(NO 3 ) 3 ·6H 2 O), 210 mg H 3 BTC and 24 mg of carbon-based quantum dots co-doped with nitrogen and sulfur elements (N,S-CDs) were dissolved in the obtained solvent; after the dissolution was uniform, 0.3 mL of dibutylamine and 0.03 mL of HNO 3 Adjust the pH value of the solution to 6; stir the prepared mixed solution at room temperature for 5 h, then transfer the mixed solution to a hydrothermal reactor with a polytetrafluoroethylene liner and heat it to 100 °C, and keep it for 2 h; After centrifugation, the obtained precipitate was washed with DMF and ethanol in turn, and after centrifugation three times, it was vacuum-dried at 100 ℃ for 2 hours to obtain Eu-MOFs / N,S-CDs two-color fluorescent material, which is based on rare earth metal organic framework complex-carbon-based quantum Fluorescent colorimetric sensor for water content in...
PUM
![No PUM](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/noPUMSmall.5c5f49c7.png)
Abstract
Description
Claims
Application Information
![application no application](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/application.06fe782c.png)
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap