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Method for preparing stable compound through gas-liquid plasma technology and application of method

A plasma and composite technology, applied in the fields of botanical equipment and methods, applications, nanotechnology, etc., can solve the problems of unstable surfactants and performance degradation, and achieve cost savings, small footprint, and reaction energy consumption. low effect

Pending Publication Date: 2021-05-28
JIANGSU XINRI E VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Their process technology is relatively mature from the synthesis mechanism to the preparation method, but most of these methods require expensive equipment and produce by-products. Using traditional nanomaterial preparation methods will introduce other surfactants into the compound system of nanomaterials. Chemicals that cause surfactant instability and reduced performance

Method used

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  • Method for preparing stable compound through gas-liquid plasma technology and application of method
  • Method for preparing stable compound through gas-liquid plasma technology and application of method
  • Method for preparing stable compound through gas-liquid plasma technology and application of method

Examples

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Embodiment 1

[0034] A method for preparing a stable compound by gas-liquid plasma technology, said method comprising the steps of:

[0035] (1) 10mL of 0.1mM silver nitrate aqueous solution and 3mL of 1% PVA aqueous solution are mixed, and the mixed solution is used as the reaction solution;

[0036] (2) The reaction solution obtained in step (1) is placed in a petri dish, and the petri dish is placed at 3 mm below the stainless steel tube cathode (tube length 60 mm, tube inner diameter 1.6 mm, tube outer diameter 1.8 mm) of the plasma reactor, A platinum wire is inserted into the reaction solution as an anode;

[0037] (3) In the plasma reactor, the argon gas of 30 sccm is regulated and controlled by the mass flow control meter and passed into the plasma reactor, and maintained for 3min, and then under the argon atmosphere, a DC negative bias is applied to the cathode of the plasma reactor to ensure that the output power is 10W is used to break down the argon gas to generate plasma. Afte...

Embodiment 2

[0043] The preparation method is the same as in Example 1, except that the precursor is 0.3 mM silver nitrate solution.

Embodiment 3

[0045] The preparation method is the same as in Example 1, except that the precursor is a 0.5 mM silver nitrate solution.

[0046] The ultraviolet absorption spectrum figure of the colloidal solution containing silver nanoparticles prepared under different concentrations of precursors in embodiment 1-3 is as follows Figure 6 shown by Figure 6It can be seen that under the same plasma treatment conditions, the number of silver nanoparticles in the solution increases with the increase of the concentration of silver nitrate, so the corresponding surface plasmon resonance absorption peak also increases.

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Abstract

The invention discloses a method for preparing a stable compound through a gas-liquid plasma technology. The method comprises the following steps: (1) mixing a silver nitrate water solution and a stabilizer water solution to obtain a reaction solution; (2) placing the reaction solution obtained in the step (1) into a container, placing the container at a position below a stainless steel tube cathode of a plasma reactor, and inserting a platinum wire into the reaction solution to serve as an anode; (3) in an inert gas atmosphere, applying direct-current negative bias to the cathode of the plasma reactor, and treating the reaction solution for 10-30 minutes to obtain a colloidal solution containing silver nanoparticles; and (4) adding a cationic surfactant into the colloidal solution containing the silver nanoparticles, and carrying out uniform mixing to obtain the stable compound. According to the method, the colloidal solution containing the silver nanoparticles is prepared by utilizing a high-energy electron one-step method through the gas-liquid plasma technology. The method is simple, feasible, green and efficient, and the compound with stability, transparency and excellent antibacterial performance can be obtained by compounding the colloidal solution with the surfactant.

Description

technical field [0001] The invention relates to the field of fine chemical industry, in particular to a method for preparing a stable compound by gas-liquid plasma technology and its application. Background technique [0002] Because of its superior surface activity, good biodegradability and compatibility, Gemini surfactants are widely used in the fields of detergents, cosmetics, oil exploration, biological antibacterial and phase transfer catalytic chemical reactions. In recent years, with the development of the daily chemical industry and the improvement of living standards, more performance requirements have been put forward for surfactants. Among them, compounding Gemini surfactants with functional nanomaterials is an emerging research direction. The complex system not only maintains the excellent surface activity of Gemini surfactants, but also endows its nanomaterials with some specific functions and produces synergistic effects. However, the traditional nanomateria...

Claims

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Application Information

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IPC IPC(8): B22F9/24A01N59/16A01N25/04A01P1/00B82Y30/00B82Y40/00
CPCB22F9/24A01N59/16A01N25/04B82Y30/00B82Y40/00
Inventor 林良良李青
Owner JIANGSU XINRI E VEHICLE
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