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Metal nanoparticle preparing method

A metal nanoparticle, metal nanoparticle technology, applied in nanotechnology, nanotechnology, metal processing equipment and other directions, can solve the problems of difficulty in collection, low productivity, and high equipment cost, and achieve a wide range of raw material resources, strong selectivity, and preparation. simple craftsmanship

Active Publication Date: 2021-08-17
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are that it is difficult to collect, the cost of equipment is high, and the productivity is low.

Method used

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  • Metal nanoparticle preparing method

Examples

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Embodiment 1

[0031] In this example, see figure 1 and figure 2 , a method for preparing metal nanoparticles, comprising the steps of:

[0032] (1) Use a glass substrate as the substrate; the size of the glass substrate is 3.1cm×2.6cm, and the thickness is 0.2cm; the substrate is cleaned with a cleaning agent and then dried;

[0033] (2) Using polytetrafluoroethylene (PTFE) dispersion liquid, using deionized water as a solvent for the polytetrafluoroethylene dispersion liquid, preparing the dispersion liquid with a mass fraction of 60%, then placing the prepared solution on a magnetic stirrer, and stirring for 3 hours;

[0034] (3) After coating the polytetrafluoroethylene dispersion in the step (2) on the surface of the glass substrate in the step (1), set the spin coating speed as 3000r / min, and the spin coating time is 60s; then Dry at 100°C for 5 minutes under a baking lamp to form a polytetrafluoroethylene coating with a thickness of 0.5mm;

[0035] (4) Evaporate metal gold on the ...

Embodiment 2

[0041] This embodiment is basically the same as Embodiment 1, especially in that:

[0042] In the above embodiment, a method for preparing metal nanoparticles comprises the following steps:

[0043] (1) Use a glass substrate as the substrate; the size of the glass substrate is 3.1cm×2.6cm, and the thickness is 0.2cm; the substrate is cleaned with a cleaning agent and then dried;

[0044] (2) Using polytetrafluoroethylene (PTFE) dispersion liquid, using deionized water as a solvent for the polytetrafluoroethylene dispersion liquid, preparing the dispersion liquid with a mass fraction of 60%, then placing the prepared solution on a magnetic stirrer, and stirring for 3 hours;

[0045] (3) After coating the polytetrafluoroethylene dispersion in the step (2) on the surface of the glass substrate in the step (1), set the spin coating speed as 3000r / min, and the spin coating time is 60s; then Dry at 100°C for 5 minutes under a baking lamp to form a polytetrafluoroethylene coating wi...

Embodiment 3

[0052] This embodiment is basically the same as the above-mentioned embodiment, and the special features are:

[0053] In the above embodiment, a method for preparing metal nanoparticles comprises the following steps:

[0054] (1) Use a glass substrate as the substrate; the size of the glass substrate is 3.1cm×2.6cm, and the thickness is 0.2cm; the substrate is cleaned with a cleaning agent and then dried;

[0055] (2) Using polytetrafluoroethylene (PTFE) dispersion liquid, using deionized water as a solvent for the polytetrafluoroethylene dispersion liquid, preparing the dispersion liquid with a mass fraction of 60%, then placing the prepared solution on a magnetic stirrer, and stirring for 3 hours;

[0056] (3) After coating the polytetrafluoroethylene dispersion in the step (2) on the surface of the glass substrate in the step (1), set the spin coating speed as 3000r / min, and the spin coating time is 60s; then Dry at 100°C for 5 minutes under a baking lamp to form a polyte...

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Abstract

The invention discloses a metal nanoparticle preparing method, belongs to the technical field of metal nano materials, and particularly relates to a physical preparation method based on metal nanoparticles. The method comprises the following steps that polytetrafluoroethylene dispersion liquid is applied to the surface of a glass substrate, and drying is conducted to obtain a polytetrafluoroethylene-coating glass substrate; and then, the substrate is put into a glove box vacuum evaporator, a metal wire is evaporated to the polytetrafluoroethylene-coating glass substrate at high temperature, and then metal nanoparticles grow and are formed. When different metal nanoparticles are prepared, particle sizes of the metal nanoparticles of each metal are realized by controlling a thickness of the growth layer of the metal nanoparticles; and the method is simple in operation, simple in preparation process principle, energy-saving, environment-friendly and safe, and a series of chemical reaction synthesis and purification are omitted.

Description

technical field [0001] The invention mainly belongs to the technical field of metal nanomaterials, and in particular relates to a physical preparation method based on metal nanoparticle. Background technique [0002] Metal nanoparticle materials, with their unique physical and chemical properties, make it widely used in metallurgical industry, advanced ceramics, electronic appliances, bioengineering, agriculture, optoelectronic integration, chemical industry, medicine, molecular assembly, environmental protection, energy, national defense, etc. The field has broad application prospects, such as efficient catalytic catalyst materials, energetic materials, anti-corrosion materials, lubricating oil additive materials and medical and sanitation sterilization materials. Therefore, related researches are getting more and more attention. [0003] At present, there are generally two methods for preparing metal nanoparticles, physical method and chemical method. The chemical method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F9/06B82Y30/00B82Y40/00C23C14/18C23C14/58C23C14/02
CPCB22F9/06C23C14/18C23C14/0005C23C14/5873C23C14/024B82Y40/00B82Y30/00B22F1/054
Inventor 赵宁徐亚晨徐海洋徐晗飞曲明镐廖英杰魏斌
Owner SHANGHAI UNIV
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