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

Nano-fiber for adsorbing heavy metal ions and preparation method thereof

A technology for adsorbing heavy metals and nanofibers, which is applied in the fields of alkali metal compounds, chemical instruments and methods, alkali metal oxides/hydroxides, etc., can solve the problems of unseen preparations, and achieve good product stability, uniform size, and high-efficiency Good results

Inactive Publication Date: 2016-04-06
SHANGHAI JIAO TONG UNIV +1
View PDF7 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, no APS (artificialPulmonarySurfactant) has been used in the preparation of heavy metal ion adsorption materials.

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
  • Nano-fiber for adsorbing heavy metal ions and preparation method thereof
  • Nano-fiber for adsorbing heavy metal ions and preparation method thereof
  • Nano-fiber for adsorbing heavy metal ions and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides a method for preparing nanofibers that absorb heavy metal ions based on electrospinning technology, including the following steps:

[0047] a. In the ethanol that is 2000 parts by mass, add 20 parts of dipalmitoylphosphatidylcholine, 10 parts of cholesterol, 30 parts of egg yolk lecithin;

[0048] b. Stir magnetically at 40°C for 30 minutes until completely dissolved and no obvious lumps;

[0049] c. in the water of 2000 parts by mass, add 20 parts of acetic acid, after mixing, add 100 parts of chitosan;

[0050] d. Stir magnetically at room temperature for 12 hours until completely dissolved and no obvious particles;

[0051] e. Add the solution obtained in b to the solution obtained in d, and continue stirring at 50° C. for 60 minutes to obtain a mixed solution of chitosan-dipalmitoylphosphatidylcholine;

[0052] f. Add the solution obtained in e into the syringe, and use the existing electrospinning equipment to carry out the electrospinnin...

Embodiment 2

[0055] This embodiment provides a method for preparing nanofibers that absorb heavy metal ions based on electrospinning technology, including the following steps:

[0056] a. In the ethanol that is 2000 parts by mass, add 40 parts of dipalmitoylphosphatidylcholine, 10 parts of cholesterol, 50 parts of dilauroylphosphatidylcholine;

[0057] b. Stir magnetically at 50°C for 30 minutes until completely dissolved and no obvious lumps;

[0058] c. in the water of 2000 parts by mass, add 20 parts of acetic acid, after mixing, add 100 parts of chitosan;

[0059] d. Stir magnetically at room temperature for 12 hours until completely dissolved and no obvious particles;

[0060] e. Add the solution obtained in b to the solution obtained in d, and continue stirring at 70° C. for 60 minutes to obtain a mixed solution of chitosan-dipalmitoylphosphatidylcholine;

[0061] f. Add the solution obtained in e into a syringe (in a 5ml syringe, using a No. 7 needle), and use the existing electro...

Embodiment 3

[0064] This embodiment provides a method for preparing nanofibers that absorb heavy metal ions based on electrospinning technology, including the following steps:

[0065] a. In the ethanol that is 2000 parts by mass, add 80 parts of dipalmitoylphosphatidylcholine, 100 parts of cholesterol, 10 parts of soybean lecithin;

[0066] b. Stir magnetically at 70°C for 50 minutes until completely dissolved and no obvious lumps;

[0067] c. in the water of 2000 parts by mass, add 40 parts of acetic acid, after mixing, add 80 parts of chitosan;

[0068] d. Stir magnetically at room temperature for 18 hours until completely dissolved and no obvious particles;

[0069] e. Add the solution obtained in b to the solution obtained in d, and continue stirring at 50° C. for 120 minutes to obtain a mixed solution of chitosan-dipalmitoylphosphatidylcholine;

[0070] f. Add the solution obtained in e into the syringe, and use the existing electrospinning equipment to carry out the electrospinnin...

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

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Fiber diameteraaaaaaaaaa
Fiber diameteraaaaaaaaaa
Login to View More

Abstract

The present invention provides a nano-fiber for adsorbing heavy metal ions and a preparation method thereof. The method comprises the steps of: S1. adding 20-80 parts by weight of dipalmitoyl phosphatidylcholine, 10-100 parts by weight of cholesterol and 10-100 parts by weight of phospholipid into 2000 parts by weight of ethanol; and conducting magnetic stirring at 20-70 DEG C until complete dissolution without obvious lumps; S2. adding 20-50 parts of acetic acid in 2000 parts by weight of water, uniformly mixing, adding 40-100 parts by weight of chitosan; conducting magnetic stirring at room temperature until complete dissolution without significant particles; S3. adding the solution obtained in the S1 into the solution obtained in the S2, and continuing stirring to obtain a mixed solution of chitosan-dipalmitoyl phosphatidylcholine; S4. conducting electrostatic spinning by utilizing the mixed solution obtained in the S3 to obtain the nano-fiber. The obtained fiber has the advantages of high efficiency, low cost and adsorption of a large amount of ions.

Description

technical field [0001] The invention relates to the field of preparation of nanomaterials, in particular to a nanofiber for absorbing heavy metal ions based on electrospinning technology and a preparation method thereof. Background technique [0002] Chitosan is a cationic polymer, insoluble in common organic solvents, stable in lye, has strong hydrophilicity, can expand and form gel in dilute hydrochloric acid and dilute acetic acid solutions, and can be made into various A slow-release, controlled-release dosage form (Miyazaki et al., 1988; Sawayanagietal., 1982) has good film-forming properties, and the chitosan film after water swelling is a tough elastic material; because chitin has a strong crystalline structure, it dissolves Chitosan, as a drug carrier, can control the drug release, prolong the curative effect of the drug, reduce the side effects of the drug, improve the permeability of the hydrophobic drug to the cell membrane and the stability of the drug, and chang...

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
IPC IPC(8): B01J20/24B01J20/28B01J20/30
Inventor 何丹农易帆乔宇罗孚嘉朱君金彩虹
Owner SHANGHAI JIAO TONG 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