Inorganic complex antimicrobials containing zincium-rare earth as well as preparation method and application thereof

An inorganic composite, antibacterial agent technology, applied in the field of antibacterial materials, can solve the problems of unsatisfactory antibacterial activity, high addition amount, affecting the appearance of materials and products, etc., and achieves low cost, improved antibacterial activity, and good color stability.

Inactive Publication Date: 2008-05-14
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The antibacterial activity of antibacterial agents containing rare earth ions cannot meet the requirements of practical applications, and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Contains 0.14mol / l zinc nitrate and 3.2×10 in 100ml -2 mol / l cerium nitrate [Ce(NO 3 ) 3 ], add montmorillonite (100mmol / 100g cation exchange capacity) 10.0g, stir and react at 80°C for 5 hours, then filter, wash, and dry in sequence, then roast at 500°C for 3 hours, and finally supercharge Finely crushed to a white powder with an average particle size of less than 5 microns to obtain an inorganic composite antibacterial agent with a zinc loading of 8.0 wt % and a cerium loading of 4.0 wt %. The test results are shown in Table 1.

Embodiment 2

[0029] Contains 0.10mol / l zinc acetate and 1.6×10 in 100ml -2 mol / l cerium acetate [Ce(AC) 3 ], add montmorillonite (100mmol / 100g cation exchange capacity) 10.0g, stir and react at 60°C for 7 hours, then filter, wash, and dry in sequence, then roast at 600°C for 2 hours, and finally supercharge Finely crushed to a white powder with an average particle size of less than 5 microns to obtain an inorganic composite antibacterial agent with a zinc loading of 6.0 wt % and a cerium loading of 2.0 wt %. The test results are shown in Table 1.

Embodiment 3

[0031] Contains 0.12mol / l zinc nitrate and 2.4×10 in 100ml -2 mol / l cerium nitrate [Ce(NO 3 ) 3 ], add montmorillonite (100mmol / 100g cation exchange capacity) 10.0g, stir and react at 70°C for 6 hours, then filter, wash, and dry in sequence, then roast at 400°C for 4 hours, and finally supercharge Finely crushed to a white powder with an average particle size of less than 5 microns to obtain an inorganic composite antibacterial agent with a zinc loading of 7.1wt% and a cerium loading of 2.8wt%. The test results are shown in Table 1.

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Abstract

The utility model discloses an inorganic composite antimicrobial with zinc - rare earth and a preparation method and applications thereof. The antimicrobial uses natural or chemosynthetic ion exchange material as the carrier, and loads the double active centre of the zinc ions and the rare earth ions by an ion exchange method, wherein, the content of the zinc ions is 6.0 to 8.0wt%, the content of the rare earth ions is 2.0 to 4.0wt%. The antimicrobial exchanges the zinc ions and the rare earth ions into the carrier by means of a liquidoid or a solidoid ion exchange, and then the inorganic composite antimicrobial is prepared after a post treatment. Because having a double antimicrobial active centre of the zinc ions and the rare earth ions which can generate a synergistic effect, the antimicrobial has the advantages of broad antimicrobial spectrum, higher antimicrobial efficiency, good thermal stability and photostability, steady color and low cost; the antimicrobial is an ideal substitute for the silver-loaded inorganic antimicrobial, and can be added in plastic, rubber, fiber, paints, adhesive, paper or ceramic and other material for preparing antimicrobial functional material and products.

Description

technical field [0001] The invention belongs to the field of antibacterial materials, in particular to an inorganic composite antibacterial agent containing zinc-rare earth dual active centers, a preparation method and application thereof. Background technique [0002] The rapid development of material civilization and technological civilization in modern human society has promoted the take-off of the global economy, but it is facing an increasingly severe environmental situation. Environmental pollution and biosafety have become the fundamental and strategic issues that human society faces when seeking sustainable development in the 21st century. Due to the extensive use of chemical drugs such as various antibiotics, disinfectants, and fungicides, the incidence of global infectious diseases that were once suppressed has risen sharply, new pathogenic microorganisms have been discovered one after another, and the mutated populations of known pathogenic microorganisms are also...

Claims

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Application Information

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IPC IPC(8): A01N59/00A01P1/00C08K3/34C09D5/14D21H21/36
Inventor 谭绍早谢瑜珊张力玲刘应亮
Owner JINAN UNIVERSITY
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