Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of quantum-dot phosphorescent imprinted polymer

A technology for imprinting polymers and quantum dots, which is applied in fluorescence/phosphorescence, material excitation analysis, etc., can solve the problems of lack of universality and selectivity, low sensitivity, slow speed, etc., and achieve good optical stability, sensitivity and selection sex enhancing effect

Inactive Publication Date: 2014-04-30
JIANGSU UNIV
View PDF2 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the former detection process has a large workload, slow speed, and low sensitivity; the latter lacks certain universality and selectivity.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of quantum-dot phosphorescent imprinted polymer
  • Preparation method of quantum-dot phosphorescent imprinted polymer
  • Preparation method of quantum-dot phosphorescent imprinted polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In a 100 mL three-neck flask, add 1.797 g ZnSO 4 ·7H 2 O, 0.059 g MnCl 2 4H 2 O, 20 mL of distilled water, the resulting mixed solution was stirred at room temperature for 15 min under nitrogen, then 5 mL of 1.501 g Na 2 S·9H 2 O aqueous solution, stirred for 15 min, and finally 5 mL of ethanol solution containing 37.7 μL MPTS was added to the mixed solution and continued to stir for 18 hours. The obtained MPTS-modified Mn-doped ZnS quantum dots were centrifuged, washed three times with distilled water and absolute ethanol, and dried in a vacuum oven.

[0031] In a 50 mL flask, add 10 mL of anhydrous ethanol solution containing 100 mg 2,4,5-trichlorophenol and 181 μL APTS and stir for 30 min. Add 0.9 mL TEOS (crosslinking monomer) to the resulting mixture and stir for 5 min. Then 300 mg of MPTS-modified Mn-ZnS quantum dots and 1.8 mL of 6% ammonia water were added to the mixture and stirred for 16 h. Mn-ZnSMPTSMIPs were obtained by centrifugation, and washed ...

Embodiment 2

[0033] In a 100 mL three-neck flask, add 1.797 g ZnSO 4 ·7H 2 O, 0.118 g MnCl 2 4H 2 O, 20 mL of distilled water, the resulting mixed solution was stirred at room temperature for 30 min under nitrogen, then added 5 mL containing 1.501 g Na 2 S·9H 2 O aqueous solution, stirred for 30 min, and finally 5 mL of ethanol solution containing 75.5 μL MPTS was added to the mixed solution and continued to stir for 24 hours. The obtained MPTS-modified Mn-doped ZnS quantum dots were centrifuged, washed three times with distilled water and absolute ethanol, and dried in a vacuum oven.

[0034] In a 50 mL flask, add 10 mL of anhydrous ethanol solution containing 100 mg 2,4,5-trichlorophenol and 362 μL APTS and stir for 30 min. Add 2.26 mL of TEOS (crosslinking monomer) to the resulting mixture and stir for 15 min. Then 500 mg of MPTS-modified Mn-ZnS quantum dots and 6.78 mL of 6% ammonia water were added to the mixture and stirred for 20 h. Mn-ZnSMPTSMIPs were obtained by centrif...

Embodiment 3

[0036] In a 100 mL three-neck flask, add 1.797 g ZnSO 4 ·7H 2 O, 0.1 g MnCl 2 4H 2 O, 20 mL of distilled water, the resulting mixed solution was stirred at room temperature for 20 min under nitrogen, then 5 mL of 1.501 g Na 2 S·9H 2 O aqueous solution, stirred for 20 min, and finally 5 mL of ethanol solution containing 60 μL MPTS was added to the mixed solution and continued to stir for 20 h. The obtained MPTS-modified Mn-doped ZnS quantum dots were centrifuged, washed three times with distilled water and absolute ethanol, and dried in a vacuum oven. Such as figure 2 (c, d) As shown, MPTS successfully modified ZnS quantum dots.

[0037] In a 50 mL flask, add 10 mL of anhydrous ethanol solution containing 100 mg 2,4,5-trichlorophenol and 250 μL APTS and stir for 30 min. Add 1 mL of TEOS (crosslinking monomer) to the resulting mixture and stir for 10 min. Then 400 mg of MPTS-modified Mn-ZnS quantum dots and 2.5 mL of 6% ammonia water were added to the mixture and st...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a preparation method of a quantum-dot phosphorescent imprinted polymer, belonging to the technical field of preparation of environment function materials. The preparation method comprises the following steps: first, synthesizing Mn-ZnS quantum dots by ZnSO4.7H2O, MnCl2.4H2O and Na2S.9H2O; then, adding (3-mercaptopropyl) trimethoxyl silane (MPTS) to modify to obtain the MPTS-modified Mn-ZnS quantum dots; and then, synthesizing a phosphorescent molecularly imprinted polymer with 2,4,5-trichlorophenol as template molecules by means of hydrolysis of tetraethoxysilane (TEOS) and optically detecting 2,4,5-trichlorophenol by the polymer. The phosphorescent molecularly imprinted polymer is good in optical and pH stability, and has the ability of selectively identifying 2,4,5-trichlorophenol.

Description

Technical field [0001] The present invention involves a preparation method of a quantum dot phosphorus -printed polymer, which is a technical field of environmental functional materials preparation. Background technique [0002] In the water environment, 3-chlorophenols, 2,4-dichlorophenol, 2,4,5-trichlorine phenols and 2,4,6-trichlorine phenols have been listed as priority pollutants.The analysis and detection of phenolic pollutants mainly use chromatography, such as liquid chromatography, gas chromatography, and liquid combination.The chromatographic method has high recovery rate, good reproducibility and low detection limit, but requires tedious sample pre -processing processes.Commonly used sample pre -treatment methods include solvent extraction technology, supercritical extraction technology, microwave extraction technology, membrane separation technology, and solid phase extraction technology.Although these methods have their own unique advantages, they also have their own...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/28C08G77/06C08K9/06C08K3/30G01N21/64
Inventor 卫潇戴江栋高林周志平闫永胜
Owner JIANGSU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com