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Preparation method of nano-silver/potassium monopersulfate composite sterilizing liquid, and product thereof

A technology of potassium monopersulfate and potassium hydrogen persulfate is applied in the fields of nanotechnology and fine chemicals, which can solve the problems of difficult storage for a long time, poor stability of peroxides, etc., achieves wide adjustable range of parameters, and improves sterilization effect. , the effect of high bactericidal effect

Inactive Publication Date: 2021-02-12
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, some peroxides have poor stability and are difficult to store for a long time

Method used

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  • Preparation method of nano-silver/potassium monopersulfate composite sterilizing liquid, and product thereof
  • Preparation method of nano-silver/potassium monopersulfate composite sterilizing liquid, and product thereof
  • Preparation method of nano-silver/potassium monopersulfate composite sterilizing liquid, and product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of nano-silver / potassium monopersulfate composite bactericidal liquid, based on 1000 milliliters of this nano-silver / potassium monopersulfate composite bactericidal liquid, the formula is shown in the following table:

[0036]

[0037] Prepare as follows:

[0038] (1) Add potassium peroxodisulfate solution into the reaction vessel, stir, wait for it to be hydrolyzed into potassium monopersulfate and potassium hydrogensulfate, and detect that the active oxygen content reaches the standard; then,

[0039] (2) Add the stabilizer sodium hexametaphosphate, slowly add potassium bisulfate, and mix well;

[0040] (3) Add potassium carbonate solution to adjust the pH value to 7-8;

[0041] (4) Add silver oxide powder with a concentration of 30ppm, and continue to stir for 24 hours until the solution is colorless and clear, and the target nano-silver / potassium monopersulfate sterilizing solution is obtained.

[0042] Product performance:

[0043] (1) The active oxyge...

Embodiment 2

[0046] A kind of nano-silver / potassium monopersulfate composite bactericidal liquid, based on 1000 milliliters of this nano-silver / potassium monopersulfate composite bactericidal liquid, the formula is shown in the following table:

[0047]

[0048] Prepare as follows:

[0049] (1) Add 180 grams of potassium peroxodisulfate solution into a 900mL beaker, the hydrolysis reaction time is 10 hours, and the monomeric active oxygen of potassium peroxodisulfate reaches 1.03%;

[0050] (2) Add 3.6g of stabilizer sodium pyrophosphate, then slowly add 81.9g of potassium bisulfate, stir and mix;

[0051] (3) Add 76.5 grams of potassium carbonate to adjust the pH value to 7-8;

[0052](4) Add 0.032 g of silver oxide powder, add 100 ml of purified water and continue to stir for 24 hours until the solution is colorless and clear, and the target nano-silver / potassium monopersulfate sterilizing solution is obtained.

[0053] Product performance:

[0054] (1) The active oxygen content of...

Embodiment 3

[0057] A kind of nano-silver / potassium monopersulfate composite bactericidal liquid, based on 1000 milliliters of this nano-silver / potassium monopersulfate composite bactericidal liquid, the formula is shown in the following table:

[0058]

[0059] Prepare as follows:

[0060] (1) Add 300 grams of potassium peroxodisulfate solution into a 900mL beaker, the hydrolysis reaction time is 8 hours, and the monomer active oxygen of potassium peroxodisulfate reaches 1.56%;

[0061] (2) Add 3g of stabilizer sodium tripolyphosphate, then slowly add 136.5g of potassium bisulfate, stir and mix;

[0062] (3) Add 150 grams of potassium carbonate to adjust the pH value to 7-8;

[0063] (4) Add 0.032 g of silver oxide powder, and continue to stir for 24 hours until the solution is colorless and clear, and the target nano-silver / potassium monopersulfate sterilizing solution is obtained.

[0064] Product performance:

[0065] (1) The active oxygen content of nano-silver / potassium monoper...

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Abstract

The invention discloses a preparation method of a nano-silver / potassium monopersulfate composite sterilizing liquid, and a product thereof. The preparation method comprises the following steps: hydrolyzing a potassium disulfate solution into potassium peroxymonosulfate and potassium hydrogen sulfate, adding a potassium hydrogen sulfate solid after the active oxygen content exceeds 1% and the active oxygen content reaches the standard, uniformly mixing, adding a potassium carbonate solution, and regulating the pH value; and adding silver oxide powder, and stirring to obtain a nano-silver / potassium monopersulfate composite sterilizing liquid. According to the invention, the composite sterilizing liquid has the characteristics of no color, transparency, color change resistance, strong stability and the like; under the condition that the concentrations of nano-silver and peroxide are relatively low, the sterilizing liquid can achieve a relatively high sterilization rate in a relatively short time, the sterilization effect is lasting, the compounding of the nano-silver and the peroxide makes up for the defects of each other, and the sterilizing liquid with relatively strong comprehensive performance is obtained; by adding the peroxide as an initiator of catalytic reaction, nano-silver is helped to activate oxygen in water or air and generate hydroxyl radicals and negative oxygen ions, so that the sterilization effect of the nano-silver in a catalytic reaction mode is improved; and the preparation method is simple and convenient to operate, wide in parameter adjustable range, lowin energy consumption, short in period and suitable for large-scale production.

Description

technical field [0001] The invention relates to a method for preparing a nano-silver / peroxide composite sterilizing liquid and a product thereof, belonging to the field of nanotechnology and fine chemical industry. Background technique [0002] The emergence of nanotechnology has brought about a qualitative leap in the bactericidal properties of silver in the nanometer state. Nano-silver can produce a strong bactericidal effect with a small amount of use, strong permeability, broad-spectrum bactericidal effect, and no drug resistance; and nano-silver can promote wound healing, cell growth and repair of damaged cells, And without any toxic reaction, without any irritation to the skin. Therefore, nano-silver antibacterial materials can be used in functional plastics, functional coatings, textile fibers, air purification, food, daily chemicals, medical care and other fields, and have very broad market prospects. In recent years, they have gradually become a research hotspot. ...

Claims

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Application Information

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IPC IPC(8): A01N59/02A01N59/16A01N25/22A01P1/00A01P3/00
CPCA01N25/22A01N59/02A01N59/16
Inventor 崔大祥林琳朱正邬淑红吴晓燕
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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