Supported flower-shaped hierarchical-structure nanoscale precious metal material and preparation method thereof

A technology of flower-like grading and structural materials, applied in metal processing equipment, nanotechnology, transportation and packaging, etc., to achieve the effect of easy operation

Active Publication Date: 2018-04-20
XI'AN PETROLEUM UNIVERSITY +1
View PDF8 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to the above-mentioned oxidative self-polymerization properties of dopami...

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
  • Supported flower-shaped hierarchical-structure nanoscale precious metal material and preparation method thereof
  • Supported flower-shaped hierarchical-structure nanoscale precious metal material and preparation method thereof
  • Supported flower-shaped hierarchical-structure nanoscale precious metal material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. Dissolve 20mg of phosphotungstic acid in 10mL of 10mM Tris-HCl buffer solution with a pH of 9.5 to prepare a 2mg / mL phosphotungstic acid solution; dissolve 20mg of dopamine hydrochloride in 10mL of 10mM Tris-HCl buffer with a pH of 9.5 In the solution, prepare a 2mg / mL dopamine hydrochloride solution; shake and mix 10mL2mg / mL phosphotungstic acid solution and 10mL2mg / mL dopamine hydrochloride solution evenly, and the solution turns yellow within a few minutes and gradually becomes turbid After aging for 2 hours at room temperature, the product was collected by centrifugation at 5000rpm, washed 3 times with water, and a flower-like hierarchical structure material assembled with phosphotungstic acid and dopamine was obtained. from figure 1 It can be seen in the figure that dopamine and phosphotungstic acid have been co-assembled to obtain a regular flower-like hierarchical structure material with a size between 1 and 5 μm, which is composed of stacked sheet structures....

Embodiment 2

[0029] 1. Mix 1g of Weakley type Na 9 [EuW 10 o 36 ]·32H 2 O was dissolved in 100 mL of PBS buffer solution with pH 11 to prepare 10 mg / mL of Na 9 [EuW 10 o 36 ]·32H 2 O solution; 1g of dopamine hydrochloride was dissolved in 100mL of PBS buffer solution with a pH of 11 to prepare a 10mg / mL dopamine hydrochloride solution; 100mL of 10mg / mL Na 9 [EuW 10 o 36 ]·32H 2 O solution and 100mL 10mg / mL dopamine hydrochloride solution were oscillated and mixed evenly, the solution turned yellow within a few minutes, and gradually appeared turbid, aged at room temperature for 16 hours, centrifuged at 5000rpm to collect the product, washed 3 times with water, and obtained Na 9 [EuW 10 o 36 ]·32H 2 O Flower-like hierarchically structured material assembled with dopamine.

[0030] 2. Add 5mg Na 9 [EuW 10 o 36 ]·32H 2 The flower-like hierarchical structure material assembled by O and dopamine was dispersed in 5 mL of 1 mg / mL silver nitrate aqueous solution, and the reaction w...

Embodiment 3

[0032] 1. Dissolve 0.25mg of silicomolybdic acid in 0.5mL glycine-sodium hydroxide buffer solution with a pH of 8 to prepare a 0.5mg / mL silicomolybdic acid solution; dissolve 1.5mg of dopamine hydrochloride in 0.5mL of pH 8 8 in glycine-sodium hydroxide buffer solution to prepare 3mg / mL dopamine hydrochloride solution; 0.5mL0.5mg / mL silicomolybdic acid solution and 0.5mL3mg / mL dopamine hydrochloride solution were shaken and mixed evenly, The solution turned yellow within a few minutes and gradually became turbid. After aging at room temperature for 2 hours, the product was collected by centrifugation at 5000 rpm, washed 3 times with water, and a flower-like hierarchical structure material assembled with silicomolybdic acid and dopamine was obtained.

[0033] 2. Disperse 1.5 mg of the flower-like hierarchical structure material assembled with silicomomolybdic acid and dopamine in 1.5 mL of 1 mg / mL silver sulfate aqueous solution, shake and react at room temperature for 10 hours,...

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
Sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a supported flower-shaped hierarchical-structure nanoscale precious metal material and a preparation method thereof. The method comprises the following steps that firstly, heteropolyacid and dopamine are co-assembled by adopting a chemical self-assembling method so as to obtain the flower-shaped hierarchical structure material assembled by the heteropolyacid and the dopamine; and then the flower-shaped hierarchical structure material is dispersed into a soluble salt aqueous solution of precious metal, pyrocatechol groups of the flower-shaped hierarchical nano-structureis used for reducing precious metal ions in situ so as to prepare the supported flower-shaped hierarchical-structure nanoscale precious metal material. The preparation method has the advantages of being simple and convenient to operate and controllable in height. The prepared supported flower-shaped hierarchical-structure nanoscale precious metal material is a crystal material with a face-centeredcubic structure, is controllable in size and morphology and has a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of metal nano-materials, and in particular relates to a loaded flower-like hierarchical structure nano-noble metal material and a preparation method thereof. Background technique [0002] Nano-silver is a new type of metal nano-material. Due to its stable physical and chemical properties, it has broad application prospects in the fields of electronics, optics, antibacterial, and catalysis. In particular, nano-silver has strong bactericidal ability, broad-spectrum bactericidal, safe application, and has great application value in the field of antibacterial. There are many forms of nano-silver, such as spherical, cubic, linear, octahedral, triangular, etc. have been found. Different forms of nano-silver have different antibacterial effects. [0003] The preparation methods of nano silver are mainly divided into physical methods, chemical methods and biological methods. Among them, the principle of the physi...

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): B22F9/24B22F1/00B82Y40/00
CPCB82Y40/00B22F9/24B22F1/054
Inventor 李红彭浩南燕永利顾雪凡赵媛媛
Owner XI'AN PETROLEUM UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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