CN101779672B - Antibacterial agent for absorbing copper ion, zinc ion and silver ion by taking silica gel as carrier - Google Patents
Antibacterial agent for absorbing copper ion, zinc ion and silver ion by taking silica gel as carrier Download PDFInfo
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- CN101779672B CN101779672B CN2010101172543A CN201010117254A CN101779672B CN 101779672 B CN101779672 B CN 101779672B CN 2010101172543 A CN2010101172543 A CN 2010101172543A CN 201010117254 A CN201010117254 A CN 201010117254A CN 101779672 B CN101779672 B CN 101779672B
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- antibacterial agent
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- zinc
- silver
- silica gel
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Abstract
The invention relates to an antibacterial agent for absorbing copper ion, zinc ion and silver ion by taking silica gel as carrier, belonging to the technical field of antibacterial materials. The preparation method of the antibacterial agent specifically comprises the following steps of: dropwise adding 15mL of copper nitrate, zinc nitrate and silver nitrate solution with the concentration of 0.2mol/L and the mol ratio of 1-2:2-4:2-4 into 5-10ml of ludox with the pH value of 2-6 by means of stirring; stirring again for 2-3h at 50-70 DEG C; putting the mixed sol into a microwave oven, heating for 30-60s, withdrawing, and cooling to be room temperature; putting the mixed sol into a drying oven to dry after the mixed sol is changed into gel; washing with deionized water; filtering for times; and redrying and grinding to prepare the antibacterial agent. The antibacterial ratio can reach 95%. The research shows that the antibacterial performance of the antibacterial agent for absorbing the copper ion, the zinc ion and the silver ion by taking silica gel as carrier is better than that of the antibacterial agent for absorbing the copper ion and the zinc ion by taking silica gel as the carrier under the same test condition, and the antibacterial agent also solves the problem that the cost caused by independently using the silver antibacterial agent is high, and can be widely used in the fields of plastics, ceramics, dyes and the like.
Description
Technical field:
The present invention relates to a kind of technology of preparing of inorganic antiseptic, especially is the antibacterial agent of carrier for adsorbing copper, zinc and silver ion with silica gel.Belong to the anti-biotic material technical field.
Background technology:
In recent years, along with expanding economy and growth in the living standard, people are to environment, health problem and quality of life pay attention to day by day, and the application of antibacterial agent also causes concern.Wherein the inorganic silver series antibacterial agent is owing to its high security and slow release, broad spectrum antibacterial and good pesticide resistance, warm tolerance and easy to process enjoys attention; Be widely used at aspects such as pottery, glass, plastics, fiber, coating both at home and abroad at present, antibacterial product is cross-centennial environmental protection and health-oriented products by generally acknowledging.The common carrier of inorganic silver series antibacterial agent mainly contains zeolite, clay, soluble glass and silica gel etc.Because the price comparison of silver is expensive, and produce with use in easy to change and be difficult to control, so People more and more manyly replaces or part replaces silver-colored in antibacterial agent with other material considering.Copper and zinc antibacterial agent obtain people's favor gradually, and copper zinc antibacterial agent has following advantage:
(1) high security.
(2) price comparison is cheap, satisfies people's daily demand.
(3) broad spectrum antibacterial is arranged, the antibacterial effect of mould is better than silver antibacterial agent.
(4) be difficult for developing immunity to drugs
(5) good heat resistance
(6) easy to process
Therefore adopt copper, zinc antibacterial agent partly or entirely to replace the research of silver antibacterial agent will become one of emphasis of future research.The existing at present relevant report that adopts carrier absorption silver, silver-zinc and copper antibacterial agents such as silica, zeolite, the present invention is to be that carrier comes absorbing copper, zinc and silver ion with the Ludox, prepares efficient complex antimicrobials, makes it have good broad spectrum antibacterial.
Summary of the invention:
The present invention is to be that carrier comes absorbing copper, zinc and silver ion with silica gel, prepares the antibacterial agent of new copper zinc-silver ion three components, owing to substitute the part silver ion with part copper ion and zinc ion cost is reduced.This antibacterial agent has discoloration-resistant, weather resistance and good heat resistance, low cost and other advantages, can be widely used in fields such as plastics, pottery, coating.
Its preparation process is following:
(1) use concentration as the pH value scope of the nitric acid of 1mol/L adjustment Ludox between 2～6.
(2) take by weighing the above-mentioned Ludox of 5～10mL and place container; Using the magnetic stirring apparatus mol ratio that dropping concentration is 0.2mol/L in the Ludox while stirring is 1～2: 2～4: 2～4 copper nitrate, zinc nitrate and liquor argenti nitratis ophthalmicus amount to 15mL; In temperature is to stir 2～3h again under 50～70 ℃ of conditions; It is that 600～900W, frequency are the micro-wave oven of 40kHz that above-mentioned mixed sols is placed power, takes out behind heating 30～60s.
(3) mixed sols is cooled to room temperature.Treating to put into when this mixed sols becomes solid gel by liquid state drying box is 80～100 ℃ of dryings down in temperature.
(4) treat the fully dry back grinding of above-mentioned gel, spend deionised water, filtered several times, to guarantee to remove the Cu in the powder
2+, Zn
2+, Ag
+And NO
3 -, and adopt in the NaOH solution check cleaning solution and do not have Cu
2+, Zn
2+, Ag
+Residual.Final after super-dry, the grinding again is the antibacterial agent that prepared silica gel is carrier for adsorbing copper, zinc and silver ion.
Antibacterial agent to preparation carries out antibacterial effect test (like Fig. 1) under the different sintering temperatures.As can beappreciated from fig. 1,900 ℃ of beginnings, inhibition zone obviously diminishes; Analyze former because the silicon dioxide structure part is by unformed transformation to crystal in the carrier; Loose structure is damaged, and the part antimicrobial component is present in the pore structure that subsides separates out difficulty, thereby anti-microbial property obviously descends.Can find out the inhibition zone that under copper zinc-silver ion three components synergy, occurs obviously greater than the inhibition zone with copper, zinc ion bi-component antibacterial agent under the test condition by Fig. 2, anti-microbial property has also reduced the high problem of single use silver antibacterial agent cost when strengthening.
Description of drawings:
The inhibition zone of the copper-loaded zinc-silver antibacterial agent of the different sintering temperature silica gel of Fig. 1
The inhibition zone of 300 ℃ of copper-loaded zinc-silvers of silica gel of Fig. 2 roasting and copper-loaded zinc antibacterial agent relatively
The inhibition zone of 300 ℃ of copper-loaded zinc-silver antibacterial agents of silica gel of Fig. 2 a roasting
The inhibition zone of 300 ℃ of copper-loaded zinc antibacterial agents of silica gel of Fig. 2 b roasting
Embodiment:
Embodiment 1
Take by weighing 5～10mL Ludox and place container, use concentration as the pH value scope of the nitric acid of 1mol/L adjustment Ludox between 2～6.Using the magnetic stirring apparatus mol ratio that dropping concentration is 0.2mol/L in the Ludox while stirring is 1～2: 2～4: 2～4 copper nitrate, zinc nitrate and liquor argenti nitratis ophthalmicus amount to 15mL; In temperature is to stir 2～3h again under 50～70 ℃ of conditions; Take out after placing micro-wave oven to heat 30～60s the above-mentioned mixed sols, through dry, grind, wash and filter again drying after to be made through grinding be the antibacterial agent of carrier for adsorbing copper, zinc, silver ion with silica gel.
Embodiment 2
Adopt inhibition zone method to carry out the anti-microbial property test copper, zinc and the silver-colored three component antibacterial agents of preparation; Test result shows that in every 10mL Ludox, adding the 15mL mol ratio is 1: 2: 2 copper nitrate, zinc nitrate and liquor argenti nitratis ophthalmicus; PH value scope is 3～4 o'clock, microwave heating time 30s, mixing time 2h; During 70 ℃ of whipping temps, antibiotic rate reaches 95%.
Claims (1)
1. one kind is the antibacterial agent of carrier for adsorbing copper, zinc and silver ion with silica gel; It is characterized in that this antibacterial agent comprises following preparation process: in pH value scope is that the mol ratio that agitation and dropping concentration is 0.2mol/L in the Ludox of 5～10mL of 2～6 is 1～2: 2～4: 2～4 copper nitrate, zinc nitrate and liquor argenti nitratis ophthalmicus amount to 15mL; In temperature is to stir 2～3h again under 50～70 ℃ of conditions; After above-mentioned mixed sols is placed power is that 600～900W, frequency are the micro-wave oven of 40kHz; Be to take out behind 30～60s heat time heating time, is cooled to room temperature, treats to place when this mixed sols becomes gel drying box again; After drying under 80～100 ℃ the temperature, spend deionised water, filtered several times, dry again back is ground and is made antibacterial agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101172543A CN101779672B (en) | 2010-03-04 | 2010-03-04 | Antibacterial agent for absorbing copper ion, zinc ion and silver ion by taking silica gel as carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101172543A CN101779672B (en) | 2010-03-04 | 2010-03-04 | Antibacterial agent for absorbing copper ion, zinc ion and silver ion by taking silica gel as carrier |
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| Publication Number | Publication Date |
|---|---|
| CN101779672A CN101779672A (en) | 2010-07-21 |
| CN101779672B true CN101779672B (en) | 2012-07-25 |
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| CN2010101172543A Expired - Fee Related CN101779672B (en) | 2010-03-04 | 2010-03-04 | Antibacterial agent for absorbing copper ion, zinc ion and silver ion by taking silica gel as carrier |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102630704A (en) * | 2012-03-26 | 2012-08-15 | 浙江建业化工股份有限公司 | Preparation method of hydrated sodium antibacterial agent |
| CN104526806B (en) * | 2014-12-05 | 2016-09-28 | 中南林业科技大学 | The preparation method of bamboo wood mould preservative |
| CN112640898A (en) * | 2020-12-30 | 2021-04-13 | 宣城晶瑞新材料有限公司 | Preparation method of nano aluminum-silicon-silver-loaded antibacterial agent powder with ultrahigh water dispersibility and superactivity |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1343746A (en) * | 2001-10-25 | 2002-04-10 | 四川升达林产有限公司 | Antibacterial antimildew surface decorative material and its application method |
| CN1531851A (en) * | 2003-03-20 | 2004-09-29 | 蔡惠萍 | Method for preparing inorganic antibiotic primary liquid |
| CN1552205A (en) * | 2003-05-30 | 2004-12-08 | 中国科学院大连化学物理研究所 | Nanometer catalyst with adsorbing and virus killing activity |
| CN101258856A (en) * | 2008-04-21 | 2008-09-10 | 河北理工大学 | Method for preparing antimicrobial agent with carrier for adsorbing copper and zinc ion by microwave heating |
-
2010
- 2010-03-04 CN CN2010101172543A patent/CN101779672B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1343746A (en) * | 2001-10-25 | 2002-04-10 | 四川升达林产有限公司 | Antibacterial antimildew surface decorative material and its application method |
| CN1531851A (en) * | 2003-03-20 | 2004-09-29 | 蔡惠萍 | Method for preparing inorganic antibiotic primary liquid |
| CN1552205A (en) * | 2003-05-30 | 2004-12-08 | 中国科学院大连化学物理研究所 | Nanometer catalyst with adsorbing and virus killing activity |
| CN101258856A (en) * | 2008-04-21 | 2008-09-10 | 河北理工大学 | Method for preparing antimicrobial agent with carrier for adsorbing copper and zinc ion by microwave heating |
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|---|---|
| CN101779672A (en) | 2010-07-21 |
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