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Series of inorganic antibacterial mildew-proof monatomic catalysts and preparation method thereof

An inorganic antibacterial, antibacterial and antifungal technology, which is applied in the field of inorganic antibacterial and antifungal single-atom catalysts and its preparation, can solve the problems such as difficulty in meeting the requirements of antibacterial and antifungal applications, and achieve the effects of excellent antibacterial performance and stable structure

Pending Publication Date: 2020-06-12
LINKWAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the wide application of single-atom catalysis, different applications have different requirements for it. It is difficult for existing single-atom catalysts to meet the requirements of antibacterial and antifungal applications. Therefore, it is very important to explore the development of antibacterial and antifungal single-atom catalysts. Significance

Method used

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  • Series of inorganic antibacterial mildew-proof monatomic catalysts and preparation method thereof
  • Series of inorganic antibacterial mildew-proof monatomic catalysts and preparation method thereof
  • Series of inorganic antibacterial mildew-proof monatomic catalysts and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Step 1, adding an aqueous solution of 5g / L ferric chloride into diatomite (inorganic silicon-based carrier), wherein the mass ratio of transition metal to carrier is 1:20, and the resulting solution is dispersed evenly by ultrasonication for 30min under the condition of 100kHz, and then Stir the mixed solution at 100r / min for 12h;

[0028] Step 2, warming up the mixed solution obtained in step 1 to the boiling point of water, volatilizing at high temperature, evaporating the solvent, and fully grinding for 0.5 hours with a ball mill at a speed of 50 r / min to obtain a solid powder;

[0029] Step 3: heat the solid powder obtained in step 2 for 2 hours in an air atmosphere and at a temperature of 400° C., cool to room temperature, and grind in a ball mill for 20 minutes at a speed of 50 r / min to obtain the desired catalyst. The prepared catalyst The contained transition metals are anchored to the defect sites on the surface of the support in the form of single atoms.

Embodiment 2

[0031] Step 1, the aqueous solution of 10g / L cupric chloride is added in the calcium carbonate (inorganic calcium-based carrier), wherein the mass ratio of transition metal and carrier is 1:50, ultrasonic 30min is dispersed evenly under the condition of the gained solution 100kHz, and then The mixed solution was stirred at 150r / min for 20h;

[0032] Step 2, heating the mixed solution obtained in step 1 to the boiling point of water, volatilizing at high temperature, evaporating the solvent to dryness, and fully grinding for 1 hour with a ball mill at a speed of 100 r / min to obtain a solid powder;

[0033] Step 3, heat the solid powder obtained in step 2 for 3 hours in an air atmosphere and at a temperature of 200°C, cool to room temperature, and grind the ball mill for 30 minutes at a speed of 100r / min to obtain the desired catalyst. The prepared catalyst The contained transition metals are anchored to the defect sites on the surface of the support in the form of single atoms....

Embodiment 3

[0035] Step 1, add 200g / L cobalt chloride in water and ethanol (volume ratio is 1:1) solution to alumina (inorganic aluminum-based carrier), wherein the mass ratio of transition metal to carrier is 1:200, and the resulting solution is 100kHz Ultrasonic 30min under the condition of uniform dispersion, and then the mixed solution was stirred at 200r / min for 48h;

[0036] In step 2, the mixed solution obtained in step 1 is heated to the boiling point of the mixed solution, evaporated at high temperature, evaporated to dryness, and fully ground for 3 hours with a ball mill at a speed of 500 r / min to obtain a solid powder;

[0037] Step 3: Heat the solid powder obtained in Step 2 for 4 hours under an argon atmosphere and a temperature of 800° C., cool to room temperature, and grind for 40 minutes in a ball mill at a speed of 500 r / min to obtain the desired catalyst. The prepared The transition metals contained in the catalyst are anchored on the defect sites on the surface of the s...

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Abstract

The invention belongs to the field of catalysts, particularly relates to a series of inorganic antibacterial mildew-proof monatomic catalysts and a preparation method thereof, and discloses a series of inorganic antibacterial mildew-proof monatomic catalysts. Each monatomic catalyst is composed of a carrier and transition metal, and the carrier is any one of an inorganic calcium-based carrier, aninorganic silicon-based carrier, an inorganic aluminum-based carrier and an inorganic titanium-based carrier; the transition metal is selected from one or more of first transition metal and second transition metal; and the transition metal is anchored at a defect site on the surface of the carrier in a monatomic form. The catalyst can efficiently activate oxygen in air or water without other auxiliary conditions, generate active oxygen species to oxidize cell membranes, proteins, genetic materials and the like of bacteria and kill the bacteria. The monatomic catalyst is stable in structure, free of consumption, capable of being repeatedly used, free of pollution to the environment and free of side effects on organisms.

Description

technical field [0001] The invention belongs to the field of catalysts, and in particular relates to a series of inorganic antibacterial and antifungal single-atom catalysts and a preparation method thereof. Background technique [0002] At present, the global environmental pollution problem is becoming more and more serious, endangering the healthy survival and development of human beings, and the problem of pollution control is imminent. Environmental pollution is mainly divided into air pollution, soil pollution and water pollution. Bacteria, viruses and other microorganisms not only consume a lot of energy and resources, but also seriously endanger people's health. Therefore, it is of great significance to develop new, practical and long-lasting broad-spectrum antibacterial and anti-mildew materials. [0003] In recent years, single-atom catalysis has rapidly developed into the most popular frontier field in the field of catalysis science, widely used in energy, materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/06B01J23/50B01J23/745B01J23/75B01J23/80B01J23/89B01J27/232A01N59/16A01N59/20B01J37/04B01J37/34B01J37/08A01P1/00A01P3/00
CPCA01N59/16A01N59/20B01J23/06B01J23/50B01J23/745B01J23/75B01J23/80B01J23/8926B01J27/232B01J37/04B01J37/08B01J37/343
Inventor 黄红锋
Owner LINKWAY TECH CO LTD
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