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

A kind of micelle modified nano zero-valent iron particle and its preparation method and application

A technology for modification and modification of nano-zero-valent iron, which is applied in the field of preparation and modification of nano-materials, can solve problems such as increased application costs and secondary pollution of the environment, and achieves easy operation, good biocompatibility, and oxidation resistance Improved effect

Active Publication Date: 2019-01-04
KUNMING UNIV OF SCI & TECH
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the chemical reagents and modifiers used for nano-iron modification are improperly selected, it may cause secondary pollution to the environment and increase the application cost.

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
  • A kind of micelle modified nano zero-valent iron particle and its preparation method and application
  • A kind of micelle modified nano zero-valent iron particle and its preparation method and application
  • A kind of micelle modified nano zero-valent iron particle and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Preparation of Nano-sized Zero-valent Iron Modified by Three Poloxamers (Poloxamer F68, Poloxamer F108 and Poloxamer F127) and Its Removal of Cr(VI)

[0038] A poloxamer modified nano-zero-valent iron, the modified nano-zero-valent iron includes nano-zero-valent iron and poloxamers (poloxamer F68, poloxamer F108 and poloxamer F127), poloxamer Sharm self-assembles to form micelles coated on the surface of nano-zero-valent iron, and poloxamer micelles modify the surface of nano-zero-valent iron; the concentration of poloxamer added to the modified nano-zero-valent iron is 5mmol / L ; The temperature of the solution is controlled at 30° C. when the poloxamer is added in the preparation process of the nanometer zero-valent iron.

[0039] (1) FeSO 4 Solution preparation: weigh 20g FeSO 4 ·7H 2 Put O in a beaker, add an appropriate amount of ultrapure water to dissolve and transfer to a 100mL volumetric flask, set the volume to the mark, and shake well to obtain 0.7M FeSO 4...

Embodiment 2

[0050] Preparation of Poloxamer F127 Modified Nanoscale Zero-Valent Iron and Its Removal of Orange II Dye

[0051] A poloxamer-modified nano-zero-valent iron, the modified nano-zero-valent iron includes nano-zero-valent iron and poloxamer F127, and the poloxamer F127 self-assembles to form micelles coated on the surface of the nano-zero-valent iron, Poloxamer F127 micelles are used to modify the surface of nano-zero-valent iron; the concentration of poloxamer F127 in the modified nano-zero-valent iron is 0.5mmol / L; When using F127, the temperature of the solution is controlled at 25°C.

[0052] (1) FeSO 4 Solution preparation: weigh 14.3g FeSO 4 ·7H 2 Put O in a beaker, add an appropriate amount of ultrapure water to dissolve it and transfer it to a 100mL volumetric flask, set the volume to the mark, and shake well to obtain 0.5mol / L FeSO 4 solution.

[0053] (2) NaBH 4 Preparation of the solution: Weigh 5.67g, put it in a beaker, add an appropriate amount of ultrapure w...

Embodiment 3

[0058] Preparation of Nano-sized Zero-Valent Iron Modified by Poloxamer F127 and Removal of Metronidazole

[0059] A poloxamer-modified nano-zero-valent iron, the modified nano-zero-valent iron includes nano-zero-valent iron and poloxamer F127, and the poloxamer F127 self-assembles to form micelles coated on the surface of the nano-zero-valent iron, Poloxamer F127 micelles are used to modify the surface of nano-zero-valent iron; the concentration of poloxamer F127 in the modified nano-zero-valent iron is 8 mmol / L; the addition of poloxamer to the nano-zero-valent iron preparation process The temperature of the solution at F127 was controlled at 40°C.

[0060] (1) FeSO 4 Solution preparation: weigh 25.7g FeSO 4 ·7H 2 Put O in a beaker, add an appropriate amount of ultrapure water to dissolve and transfer it to a 100mL volumetric flask, set the volume to the mark, and shake well to obtain 0.9mol / L FeSO 4 solution.

[0061] (2) KBH 4 Solution preparation: Weigh 7.7g and put...

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
particle diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a micelle-modified nanometer zero-valent iron particle, a preparation method and an application thereof, and belongs to the technical field of preparation and modification of nanometer materials. The modified nano-zero-valent iron particles of the present invention include nano-zero-valent iron and environment-friendly micellar poloxamers (including poloxamer F68, poloxamer F108 and poloxamer F127), poloxamer The micelles are coated on the surface of the nanometer zero-valent iron. The method of the present invention is to use a strong reducing agent KBH4 solution, NaBH4 solution or green tea solution to reduce Fe2+ in a poloxamer aqueous solution to obtain Fe0. The invention adopts poloxamer to modify nanometer zero-valent iron, forms micelles through the self-assembly of poloxamer in aqueous solution, realizes the stabilization of nanomaterials, and the prepared nanoparticles have good dispersion performance and high reactivity High, overcomes its shortcomings of easy aggregation in water and easy oxidation in air. The ability to remove pollutants is much higher than that of unmodified nano-zero-valent iron particles, and it is environmentally friendly without secondary pollution. The equipment required for preparation is simple and the process is simple, and it can be widely used in the treatment of environmental pollution and environmental pollution. Repair field.

Description

technical field [0001] The invention relates to the preparation and modification technology of nanometer materials, in particular to a micelle modified nanometer zero-valent iron particle and its preparation method and application. Background technique [0002] As an effective reducing agent and adsorbent, nano-zero-valent iron has the characteristics of small particle size, large specific surface area, large electronegativity, and strong reducing ability, so it has superior adsorption performance and high reducing activity. Compared with ordinary zero-valent iron, the unique surface effect and small size effect of nano-zero-valent iron greatly improve the reactivity and processing efficiency of zero-valent iron particles. Nano zero-valent iron technology is one of the most potential environmental remediation methods at present. It provides a new technology platform for the environmental field to reduce and remove a variety of halogenated alkanes, halogenated olefins, haloge...

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 Patents(China)
IPC IPC(8): B22F1/02B22F9/24B82Y40/00C02F1/70C02F1/28
CPCB82Y40/00C02F1/281C02F1/705B22F9/24C02F2101/36C02F2101/308C02F2101/20C02F2101/12B22F1/16
Inventor 王向宇丛姗
Owner KUNMING UNIV OF SCI & TECH
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