Antibacterial material of molecular sieve containing zinc and its preparing method

An antibacterial material and molecular sieve technology, applied in botany equipment and methods, animal repellents, biocides, etc., can solve the problems of human body harm, silver-containing molecular sieves are easy to oxidize and discolor, expensive and copper-containing molecular sieves, etc., to achieve manufacturing The effect of low cost, reliable design parameters and good chemical stability

Inactive Publication Date: 2004-08-11
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The object of the present invention is to propose a zinc-containing molecular sieve antibacterial material and a preparation method thereof to solve the problems that the silver-containing molecular sieve is easy to oxidize and discolor, the cost is expensive, and the copper-containing molecular sieve is harmful to the human body.

Method used

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  • Antibacterial material of molecular sieve containing zinc and its preparing method
  • Antibacterial material of molecular sieve containing zinc and its preparing method
  • Antibacterial material of molecular sieve containing zinc and its preparing method

Examples

Experimental program
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Effect test

Embodiment 1

[0039] The carrier of the antibacterial material is selected as X-type molecular sieve Na 2 O+Al 2 o 3 +(2.5±0.5)SiO 2 As a carrier, the zinc salt is zinc sulfate. The ratio of raw materials is as follows: the weight of zinc sulfate is 600g, the weight of molecular sieve is 100g, and the weight of water dispersant is 10000g.

[0040] Dissolve 600g of zinc salt in 10,000g of distilled water at room temperature to form a colorless solution. Add 100 g of molecular sieves, heat to 100° C., stir and reflux for 6 hours, cool to room temperature, filter with suction, wash with distilled water 6 times to remove surface ions, and dry in the air. That is, the zinc-containing molecular sieve antibacterial material is obtained, wherein the exchange degree of zinc ions and sodium ions is 85%. The antibacterial rate to Staphylococcus aureus and pathogenic Escherichia coli both reached 95%.

Embodiment 2

[0042] The carrier of the antibacterial material is selected as X-type molecular sieve Na 2 O+Al 2 o 3 +(2.5±0.5)SiO 2 As a carrier, the zinc salt is zinc sulfate. The ratio of raw materials is as follows: the weight of zinc sulfate is 300g, the weight of molecular sieve is 100g, and the weight of distilled water dispersant is 10000g.

[0043] Dissolve 300g of zinc salt in 10,000g of distilled water at room temperature to form a colorless solution. And add 100g of molecular sieves, heat to 95°C, stir and reflux for 3 hours, cool, filter with suction, wash with distilled water 6 times to remove surface ions, and dry in the air. That is, the zinc-containing molecular sieve antibacterial material is obtained, wherein the exchange degree of zinc ions and sodium ions is 75%, and the antibacterial rates against Staphylococcus aureus and pathogenic Escherichia coli both reach 85%.

Embodiment 3

[0045] The carrier of antibacterial materials is B-type (4A), also known as sodium A-type; the chemical composition is Na 2 O+Al 2 o 3 +2SiO 2 Molecular sieve with a pore size of 0.4nm.

[0046] The ratio of zinc sulfate:molecular sieve:distilled water is 3:1:100.

[0047] Dissolve 300g of zinc salt in 10,000g of distilled water at room temperature to form a colorless solution. And add 100g molecular sieve, heat to 90°C, stir and reflux for 4 hours, cool, filter with suction, wash 6 times with distilled water, wash away surface ions, and dry to obtain zinc-containing molecular sieve antibacterial material, wherein the exchange of zinc ions and sodium ions The degree is 80%. The antibacterial rate to Staphylococcus aureus and pathogenic Escherichia coli both reached 90%.

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Abstract

An antibacterial material containing Zn and molecular sieve for clothes, building materials, etc is prepared from Zn contained soluble salt through dissolving in distilled water, adding molecular sieve, reflux stirring at 50-60 rpm for 0.5-6 hrs, cooling, vacuum filter, flushing with distilled water 4-6 times, and natural drying in air. Its advantages are high exchange capacity, high adsorbility, high structure stability and slow release of ions.

Description

technical field [0001] The invention relates to a molecular sieve antibacterial material and a preparation method thereof, in particular to a zinc-containing molecular sieve antibacterial material and a preparation method thereof. Background technique [0002] There are a large number of bacteria everywhere around us, although the growth and reproduction of some non-pathogenic bacteria are beneficial to people's lives. However, in most cases, the malignant growth and reproduction of bacteria bring diseases and disasters to human beings. Statistics from the World Health Organization in 1998 showed that in 1995, the death toll caused by bacterial infection was 17 million. In the long-term struggle of human beings with bacterial diseases, people have recognized the importance of antibacterial. Not only in hospitals, public places and residences, but also daily necessities and production tools are gradually adopting antibacterial materials. [0003] At present, the antibacter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/16
Inventor 李正强阎雁肖丰收
Owner JILIN UNIV
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