Manganese dioxide nanorod silver-loaded catalyst as well as preparation method and application thereof

A manganese dioxide, nanorod technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of difficult to achieve sterilization effect, high cost, and overall equipment complex problems, to achieve the effect of low operating costs

Active Publication Date: 2013-12-18
上海棕晟企业管理合伙企业(有限合伙)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, catalytic oxidation technology, especially with semiconductor materials such as TiO 2 The photocatalytic oxidation technology as a catalyst has become a research hotspot in sterilization and disinfection technology, but the problem in its practical application is that it needs to use ultraviolet light or near ultraviolet light to excite TiO2. 2 The production of strong oxidative intermediates kills microorgan...

Method used

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  • Manganese dioxide nanorod silver-loaded catalyst as well as preparation method and application thereof
  • Manganese dioxide nanorod silver-loaded catalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A manganese dioxide nanorod-supported silver catalyst, which is composed of a manganese dioxide nanorod carrier and active species silver, the quality of the silver accounts for 2wt% of the mass of the catalyst, and the mass of the manganese dioxide nanorod carrier accounts for the mass of the catalyst 98wt%. The manganese dioxide nanorod carrier is selected from α-crystalline manganese dioxide nanorod carriers.

[0036] The preparation method of the manganese dioxide nanorod-supported silver catalyst as described above, the method is to add the manganese dioxide nanorod into the silver source solution, stir for 1-2h, rotate at 60°C, dry at 100°C for 12h, and then 500°C Calcined at ~600°C for 3 hours to obtain a manganese dioxide nanorod-supported silver catalyst.

Embodiment 2

[0038] Except that the mass of silver accounts for 4wt% of the mass of the catalyst, the mass of the manganese dioxide nanorod carrier accounts for 96wt% of the mass of the catalyst, the rest are the same as in Example 1.

Embodiment 3

[0040] Except that the mass of silver accounts for 6wt% of the mass of the catalyst, the mass of the manganese dioxide nanorod carrier accounts for 94wt% of the mass of the catalyst, the rest are the same as in Example 1.

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Abstract

The invention discloses a manganese dioxide nanorod silver-loaded catalyst which consists of a manganese dioxide nanorod carrier and an active substance silver, wherein the mass of the silver accounts for 1-6wt% of the mass of the catalyst, and the mass of the manganese dioxide nanorod carrier accounts for 94-99wt% of the mass of the catalyst. According to the invention, the manganese dioxide nanorod silver-loaded catalysts of different crystal forms are applied to room-temperature catalytic sterilization for the first time; the manganese dioxide nanorod silver-loaded catalysts of different crystal forms have different sterilization properties and can suppress and kill various germs such as escherichia coli and staphylococcus aureus.

Description

technical field [0001] The invention relates to a manganese dioxide nanometer silver-loaded silver catalyst, a preparation method and an application thereof. Background technique [0002] In recent years, catalytic oxidation technology, especially with semiconductor materials such as TiO 2 The photocatalytic oxidation technology as a catalyst has become a research hotspot in sterilization and disinfection technology, but the problem in its practical application is that it needs to use ultraviolet light or near ultraviolet light to excite TiO2. 2 The production of strong oxidizing intermediates kills microorganisms, which makes the overall equipment of this technology complex and leads to high costs. These obvious shortcomings limit the large-scale popularization and application of this technology. [0003] Non-photocatalytic sterilization technology mainly involves a series of catalysts loaded with silver, magnesium oxide and zinc oxide. Efficient adsorption and inactivati...

Claims

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Application Information

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IPC IPC(8): B01J23/68A01N59/16A01P1/00
Inventor 贺泓王莲张长斌
Owner 上海棕晟企业管理合伙企业(有限合伙)
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