Inorganic mesoporous antiseptic material and its preparing method

A technology of antibacterial materials and mesoporous materials, applied in the field of inorganic mesoporous antibacterial materials and their preparation, can solve problems affecting application prospects, wide particle size distribution, etc., and achieve the effect of improving antibacterial effect and large specific surface area

Inactive Publication Date: 2005-05-18
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the particle size of metal (metal oxide) particles obtained by traditional synthesis routes is usually on the order of microns (μm), and the particle size distribution is very wide, which cannot be controlled artificially. The synthesis method of the particles has not been reported, and these limitations directly affect their application prospects in the field of antibacterial

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1, the concentration of loaded ZnO nanoparticles is 10 -3 (or 10 -4 ) mol / g mesoporous silica (SBA-15, SBA-16, FDU-1, FDU-5) antibacterial material preparation: 1g mesoporous silica material (SBA-15, SBA-16, FDU-1, FDU-5) and 0.001 (or 0.0001) mol Zn(NO) 3 ·6H 2 O was dissolved in 50ml ethanol and stirred for 2-3 hours. Slowly evaporate to dryness at 20°C. Then transferred to the muffle furnace, controlled 550 ° C roasting for 6 hours, that is, the concentration of loaded ZnO nanoparticles was 10 -3 (or 10 -4 )mo / g mesoporous silica antibacterial material.

Embodiment 2

[0029] Embodiment 2, the concentration of loaded Ag nanoparticles is 10 -3 (or 10 -4 ) mol / g mesoporous silica (SBA-15, SBA-16, FDU-1, FDU-5) antibacterial material preparation: 1g mesoporous silica material (SBA-15, SBA-16, FDU-1, FDU-5) and 0.001 (or 0.0001) mol AgNO 3Dissolve in a mixed solvent of 25ml ethanol and 25ml water, and stir for 2-3 hours. Slowly evaporates at 20°C. Then it was transferred to a tube furnace and baked at 400°C for 6 hours under the protection of nitrogen to obtain a concentration of loaded Ag nanoparticles of 10 -3 (or 10 -4 ) mol / g mesoporous silica antibacterial material.

Embodiment 3

[0030] Example 3, the concentration of ZnO nanoparticles loaded is 10 -3 (or 10 -4 ) mol / g mesoporous carbon (CMK-3) antibacterial material preparation: 1g mesoporous carbon material (CMK-3) and 0.001 or (0.0001) mol Zn(NO) 3 ·6H 2 O was dissolved in 50ml ethanol solution and stirred for 2-3 hours. Slowly evaporates at 20°C. Then it was transferred to a tube furnace and baked at 550°C for 6 hours under the protection of nitrogen to obtain a concentration of loaded ZnO nanoparticles of 10 -3 (or 10 -4 ) mol / g mesoporous carbon antibacterial material.

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Abstract

The present invention relates to a kind of inorganic mesoporous antiseptic material carrying nano ZnO or Ag particle and its preparation process. The preparation process includes dissolving mesoporous material and inorganic metal salt in volatile solvent via stirring; setting in the air to volatilize solvent; and direct roasting or high temperature roasting under nitrogen protection to decompose and crystallize metal salt to obtain the required mesoporous antiseptic material powder. The mesoporous antiseptic material has ordered tunnel structure, great specific surface area and pore volume, small nano ZnO or Ag particle with narrow size distribution, high sterilizing effect and other features.

Description

technical field [0001] The invention belongs to the technical field of inorganic materials, and in particular relates to an inorganic mesoporous antibacterial material loaded with ZnO or Ag nanoparticles and a preparation method thereof. technical background [0002] After the nationwide pathogenic Escherichia coli O-157 infection occurred in Japan in 1996, especially in recent years, the great global panic caused by the SARS virus has set off a wave of research on antibacterial agents and normal temperature sterilization methods all over the world. upsurge. Among them, inorganic metal antibacterial materials have aroused renewed interest due to their long-lasting and effective antibacterial effects. A large number of antibacterial materials are widely used in textiles, ceramics, coatings and other industries. Experiments have proved that compared with organic antibacterial agents, they have the characteristics of broad antibacterial spectrum, high bactericidal efficiency,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/16
Inventor 赵东元李彦光李想田博之屠波
Owner FUDAN UNIV
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