CN108821751A - A kind of antimicrobial form active carbon ceramic and preparation method thereof - Google Patents
A kind of antimicrobial form active carbon ceramic and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of antimicrobial form active carbon ceramics and preparation method thereof, use alumina powder for raw material, add natural antibacterial agent and Powdered Activated Carbon, it is handled using microwave drying mode and a kind of active carbon ceramic with anti-microbial property is made, due to introducing thulium in the natural antibacterial agent, and use aluminium isopropoxide for colloidal sol, so that antibacterial effect is more preferable, crystal phase is more evenly, open pore increases, with certain translucency, and also make the absorption property of the ceramics more excellent, and raw material is conveniently easy to get, it is cheap, preparation is simple, it is at low cost, it is suitble to industrialization promotion.
Description
Technical field
The invention belongs to function ceramics field, in particular to a kind of antimicrobial form active carbon ceramic and preparation method thereof.
Background technique
Now with the development and the improvement of people's living standards of science and technology, the environmental consciousness of people constantly enhances；Meanwhile by
Promote bacteria breed in environmental degradation, global warming, the infection of infectious disease, disease incidence also gradually rise.Especially in recent years
The wreaking havoc of bird flu and haze more allows it was recognized that the purification of home environment, clean outdoor air, being effectively protected water
Resource etc. is all closely bound up with health, has also expedited the emergence of the big market of environment-friendly antibacterial articles.Due to current antibacterial activity carbon product
It is mostly powdery or graininess, generally existing intensity is low, frangible, the most of inorganic antiseptics that can not be formed, and use, such as
Natural antibacterial agent is introduced active carbon ceramic by what is worth research.
Summary of the invention
To solve the disadvantage that the prior art and deficiency, the present invention provides a kind of antimicrobial form active carbon ceramic, including it is natural
Antibacterial agent, Powdered Activated Carbon, gel and alumina powder introduce rare earth metal in the natural antibacterial agent, in oxygen atmosphere
Lower heat treatment is made.
Further, the natural antibacterial agent is the one or more of chitin, chitosan and antibiotic property protein
Mixing.
Further, the rare earth metal is scandium, one or more mix in yttrium, group of the lanthanides.
Further, the gel uses aluminium isopropoxide gel.
A kind of preparation method of antimicrobial form active carbon ceramic, includes the following steps：
（1）Pretreatment：Powdered Activated Carbon is weighed, is put into saline solution and impregnates 2h, is washed 3 times, it is dry in 80 DEG C of baking ovens
For 24 hours, spare；
（2）Configure gel solvent：Aluminium isopropoxide is added in deionized water, acid is added dropwise to PH between 4-5,80 DEG C of thermostatted waters
Bath；
（3）Configure antibacterial agent：Rare earth metal is added in natural antibacterial agent；
（4）Load antibacterial agent：Natural antibacterial agent and above-mentioned pretreated Powdered Activated Carbon mixing are weighed, gel solvent is added
In, the ultrasonic disperse under ice bath environment, and ultraviolet light 1h is used simultaneously, antimicrobial form absorbent charcoal powder body is made in microwave drying；
（5）Potting：Antimicrobial form absorbent charcoal powder body and alumina powder are weighed, adds water base, is heat-treated in oxygen atmosphere,
Cooling to obtain the final product；
Further,（1）Salts substances described in step are one of phosphate, carbonate or sulfate.
Further,（4）The additive amount of natural antibacterial agent is the pretreated Powdered Activated Carbon 1wt%- in step
5wt%。
Further,（2）The mass ratio of the material value of aluminium isopropoxide described in step and deionized water is 1：（100-200）.
Further,（5）The additive amount of antimicrobial form absorbent charcoal powder body described in step is the 20wt%- of alumina powder
50wt%。
Further,（5）Heat treatment temperature described in step is 500-800 DEG C, heating rate：10℃/min.
The beneficial effects of the invention are as follows：The present invention adds natural antibacterial agent and powder is living using alumina powder as raw material
Property charcoal, is made a kind of active carbon ceramic with anti-microbial property, due to introducing thulium in the natural antibacterial agent, and adopts
With ultrasonic disperse and ultraviolet light under ice bath environment, so that antibacterial effect is more preferable, and the rare earth metal is under oxygen atmosphere
When heat treatment, and sintering aid can be formed, so that the active carbon ceramic crystal phase is more evenly, open pore increases, and has centainly
Translucency, and also make the absorption property of the ceramics more excellent, and raw material is conveniently easy to get, cheap, preparation is simple, cost
It is low, without using high temperature, it is suitble to industrialization promotion.
Detailed description of the invention
Fig. 1 is using the schematic diagram of the anti-microbial property of antibacterial circle method measurement sample, is that Escherichia coli and eight are folded referring to strain
Coccus；
Fig. 2 is the comparison diagram of embodiment 5 with reference examples 1, the anti-microbial property of 2 sample of reference examples；
In figure, 1, antibacterial circle, 2, antibacterial bandwidth, 3, culture medium.
Specific embodiment
Below with reference to embodiment, the present invention will be further described, it should be understood that these embodiments are only used for illustration
Purpose, be in no way intended to limit protection scope of the present invention.
Embodiment 1
Powdered Activated Carbon 100g is weighed, is put into trisodium phosphate solution and impregnates 2h, is washed 3 times, is dried in 80 DEG C of baking ovens for 24 hours,
It is spare；Configure gel solvent：4g aluminium isopropoxide is added in 1000ml deionized water, dropwise addition nitric acid to PH is 4.5,80 DEG C of constant temperature
Water-bath；3g first mass shell powder is weighed, and 0.1g rare earth metal yttrium is added, is uniformly mixed；By above-mentioned natural antibacterial agent and above-mentioned pre- place
Powdered Activated Carbon mixing after reason, is added in gel solvent, the ultrasonic disperse under ice bath environment, and use ultraviolet light simultaneously
Antimicrobial form absorbent charcoal powder body is made in 1h, microwave drying 30min；By 20wt% antimicrobial form absorbent charcoal powder body and 80wt% alumina powder
Body adds water base, is heat-treated for 600 DEG C in oxygen atmosphere, and heating rate is 10 DEG C/min, and cooling to obtain the final product.
Embodiment 2
Powdered Activated Carbon 100g is weighed, is put into trisodium phosphate solution and impregnates 2h, is washed 3 times, is dried at 80 DEG C
Drying is for 24 hours, spare in case；4g aluminium isopropoxide is added in 1000ml deionized water, dropwise addition nitric acid to PH is 4.5,80 DEG C
Water bath with thermostatic control；3g first mass shell powder is weighed, and 0.1g rare earth lanthanum is added, is uniformly mixed；By above-mentioned natural antibacterial agent and above-mentioned
Pretreated Powdered Activated Carbon mixing, is added in gel solvent, the ultrasonic disperse under ice bath environment, and use ultraviolet light simultaneously
1h is irradiated, antimicrobial form absorbent charcoal powder body is made in microwave drying 30min；By 20wt% antimicrobial form absorbent charcoal powder body and 80wt% aluminium oxide
Powder adds water base, is heat-treated for 600 DEG C in oxygen atmosphere, and heating rate is 10 DEG C/min, and cooling to obtain the final product.
Embodiment 3
Powdered Activated Carbon 100g is weighed, is put into trisodium phosphate solution and impregnates 2h, is washed 3 times, is dried in 80 DEG C of baking ovens for 24 hours,
It is spare；4g aluminium isopropoxide is added in 1000ml deionized water, dropwise addition nitric acid to PH is 4.5,80 DEG C of waters bath with thermostatic control；Weigh 3g first
Mass shell powder, and 0.1g rare earth metal scandium is added, it is uniformly mixed；By above-mentioned natural antibacterial agent and above-mentioned pretreated powder activity
Charcoal mixing, is added in gel solvent, the ultrasonic disperse under ice bath environment, and uses ultraviolet light 1h, microwave drying simultaneously
Antimicrobial form absorbent charcoal powder body is made in 30min；By 20wt% antimicrobial form absorbent charcoal powder body and 80wt% alumina powder, add water base,
It is heat-treated for 600 DEG C in oxygen atmosphere, heating rate is 10 DEG C/min, and cooling to obtain the final product.
Reference examples 1
Powdered Activated Carbon 100g is weighed, is put into trisodium phosphate solution and impregnates 2h, is washed 3 times, is dried in 80 DEG C of baking ovens for 24 hours,
It is spare；4g aluminium isopropoxide is added in 1000ml deionized water, dropwise addition nitric acid to PH is 4.5,80 DEG C of waters bath with thermostatic control；Weigh 3g first
Mass shell powder；Above-mentioned natural antibacterial agent and above-mentioned pretreated Powdered Activated Carbon are mixed, are added in gel solvent, in ice bath ring
Ultrasonic disperse under border, and use ultraviolet light 1h, microwave drying 30min that antimicrobial form absorbent charcoal powder body is made simultaneously；By 20wt%
Antimicrobial form absorbent charcoal powder body and 80wt% alumina powder, add water base, are heat-treated for 600 DEG C in oxygen atmosphere, heating speed
Rate is 10 DEG C/min, and cooling to obtain the final product.
Embodiment 4
Powdered Activated Carbon 100g is weighed, is put into trisodium phosphate solution and impregnates 2h, is washed 3 times, is dried in 80 DEG C of baking ovens for 24 hours,
It is spare；4g aluminium isopropoxide is added in 1000ml deionized water, dropwise addition nitric acid to PH is 5,80 DEG C of waters bath with thermostatic control；Weigh 3g antibacterial
Property protein powder, and 0.1g rare earth metal scandium is added, is uniformly mixed；By above-mentioned natural antibacterial agent and above-mentioned pretreated powder
Active carbon mixing, is added in gel solvent, the ultrasonic disperse under ice bath environment, and uses ultraviolet light 1h simultaneously, and microwave is dry
Antimicrobial form absorbent charcoal powder body is made in dry 30min；By 20wt% antimicrobial form absorbent charcoal powder body and 80wt% alumina powder, add water system
Base is heat-treated for 600 DEG C in oxygen atmosphere, and heating rate is 10 DEG C/min, and cooling to obtain the final product.
Embodiment 5
Powdered Activated Carbon 100g is weighed, is put into trisodium phosphate solution and impregnates 2h, is washed 3 times, is dried in 80 DEG C of baking ovens for 24 hours,
It is spare；4g aluminium isopropoxide is added in 1000ml deionized water, dropwise addition nitric acid to PH is 4.5,80 DEG C of waters bath with thermostatic control；Weigh 3g shell
Glycan, and 0.1g rare earth metal scandium is added, it is uniformly mixed；By above-mentioned natural antibacterial agent and above-mentioned pretreated Powdered Activated Carbon
Mixing is added in gel solvent, the ultrasonic disperse under ice bath environment, and uses ultraviolet light 1h, microwave drying 15min simultaneously
Antimicrobial form absorbent charcoal powder body is made；By 20wt% antimicrobial form absorbent charcoal powder body and 80wt% alumina powder, add water base, in oxygen
It is heat-treated for 600 DEG C in atmosphere, heating rate is 10 DEG C/min, and cooling to obtain the final product.
Embodiment 6
Powdered Activated Carbon 100g is weighed, is put into trisodium phosphate solution and impregnates 2h, is washed 3 times, is dried in 80 DEG C of baking ovens for 24 hours,
It is spare；4g aluminium isopropoxide is added in 1000ml deionized water, dropwise addition nitric acid to PH is 5,80 DEG C of waters bath with thermostatic control；It is poly- to weigh 3g shell
Icing Sugar, and 0.2g rare earth metal scandium is added, it is uniformly mixed；By above-mentioned natural antibacterial agent and above-mentioned pretreated Powdered Activated Carbon
Mixing is added in gel solvent, the ultrasonic disperse under ice bath environment, and uses ultraviolet light 1h, microwave drying 30min simultaneously
Antimicrobial form absorbent charcoal powder body is made；By 20wt% antimicrobial form absorbent charcoal powder body and 80wt% alumina powder, add water base, in oxygen
It is heat-treated for 600 DEG C in atmosphere, heating rate is 10 DEG C/min, and cooling to obtain the final product.
Embodiment 7
Powdered Activated Carbon 100g is weighed, is put into trisodium phosphate solution and impregnates 2h, is washed 3 times, is dried in 80 DEG C of baking ovens for 24 hours,
It is spare；4g aluminium isopropoxide is added in 1000ml deionized water, dropwise addition nitric acid to PH is 5,80 DEG C of waters bath with thermostatic control；It is poly- to weigh 3g shell
Icing Sugar, and 0.3g rare earth metal scandium is added, it is uniformly mixed；By above-mentioned natural antibacterial agent and above-mentioned pretreated Powdered Activated Carbon
Mixing is added in gel solvent, the ultrasonic disperse under ice bath environment, and uses ultraviolet light 1h, microwave drying 30min simultaneously
Antimicrobial form absorbent charcoal powder body is made；By 20wt% antimicrobial form absorbent charcoal powder body and 80wt% alumina powder, add water base, in oxygen
It is heat-treated for 600 DEG C in atmosphere, heating rate is 10 DEG C/min, and cooling to obtain the final product.
Embodiment 8
Powdered Activated Carbon 100g is weighed, is put into trisodium phosphate solution and impregnates 2h, is washed 3 times, is dried in 80 DEG C of baking ovens for 24 hours,
It is spare；4g aluminium isopropoxide is added in 1000ml deionized water, dropwise addition nitric acid to PH is 5,80 DEG C of waters bath with thermostatic control；It is poly- to weigh 3g shell
Icing Sugar, and 0.4g rare earth metal scandium is added, it is uniformly mixed；By above-mentioned natural antibacterial agent and above-mentioned pretreated Powdered Activated Carbon
Mixing is added in gel solvent, the ultrasonic disperse under ice bath environment, and uses ultraviolet light 1h, microwave drying 20min simultaneously
Antimicrobial form absorbent charcoal powder body is made；By 20wt% antimicrobial form absorbent charcoal powder body and 80wt% alumina powder, add water base, in oxygen
It is heat-treated for 600 DEG C in atmosphere, heating rate is 10 DEG C/min, and cooling to obtain the final product.
Embodiment 9
Powdered Activated Carbon 100g is weighed, is put into trisodium phosphate solution and impregnates 2h, is washed 3 times, is dried in 80 DEG C of baking ovens for 24 hours,
It is spare；4g aluminium isopropoxide is added in 1000ml deionized water, dropwise addition nitric acid to PH is 5,80 DEG C of waters bath with thermostatic control；Weigh 3g antibacterial
Property protein powder, and 0.1g rare earth metal scandium is added, is uniformly mixed；By above-mentioned natural antibacterial agent and above-mentioned pretreated powder
Active carbon mixing, is added in gel solvent, the ultrasonic disperse under ice bath environment, and uses ultraviolet light 1h simultaneously, and microwave is dry
Antimicrobial form absorbent charcoal powder body is made in dry 10min；By 20wt% antimicrobial form absorbent charcoal powder body and 80wt% alumina powder, add water system
Base is heat-treated for 600 DEG C in oxygen atmosphere, and heating rate is 10 DEG C/min, and cooling to obtain the final product.
Embodiment 10
Powdered Activated Carbon 100g is weighed, is put into trisodium phosphate solution and impregnates 2h, is washed 3 times, is dried in 80 DEG C of baking ovens for 24 hours,
It is spare；4g aluminium isopropoxide is added in 1000ml deionized water, dropwise addition nitric acid to PH is 5,80 DEG C of waters bath with thermostatic control；Weigh 3g antibacterial
Property protein powder, and 0.2g rare earth metal scandium is added, is uniformly mixed；By above-mentioned natural antibacterial agent and above-mentioned pretreated powder
Active carbon mixing, is added in gel solvent, the ultrasonic disperse under ice bath environment, and uses ultraviolet light 1h simultaneously, and microwave is dry
Antimicrobial form absorbent charcoal powder body is made in dry 20min；By 20wt% antimicrobial form absorbent charcoal powder body and 80wt% alumina powder, add water system
Base is heat-treated for 600 DEG C in oxygen atmosphere, and heating rate is 10 DEG C/min, and cooling to obtain the final product.
Embodiment 11
Powdered Activated Carbon 100g is weighed, is put into trisodium phosphate solution and impregnates 2h, is washed 3 times, is dried in 80 DEG C of baking ovens for 24 hours,
It is spare；4g aluminium isopropoxide is added in 1000ml deionized water, dropwise addition nitric acid to PH is 5,80 DEG C of waters bath with thermostatic control；Weigh 3g antibacterial
Property protein powder, and 0.2g rare earth metal scandium is added, is uniformly mixed；By above-mentioned natural antibacterial agent and above-mentioned pretreated powder
Active carbon mixing, is added in gel solvent, the ultrasonic disperse under ice bath environment, and uses ultraviolet light 1h simultaneously, and microwave is dry
Antimicrobial form absorbent charcoal powder body is made in dry 40min；By 20wt% antimicrobial form absorbent charcoal powder body and 80wt% alumina powder, add water system
Base is heat-treated for 600 DEG C in oxygen atmosphere, and heating rate is 10 DEG C/min, and cooling to obtain the final product.
Embodiment 12
Powdered Activated Carbon 100g is weighed, is put into trisodium phosphate solution and impregnates 2h, is washed 3 times, is dried in 80 DEG C of baking ovens for 24 hours,
It is spare；4g aluminium isopropoxide is added in 1000ml deionized water, dropwise addition nitric acid to PH is 5,80 DEG C of waters bath with thermostatic control；It is poly- to weigh 3g shell
Icing Sugar, and 0.2g rare earth metal scandium is added, it is uniformly mixed；By above-mentioned natural antibacterial agent and above-mentioned pretreated Powdered Activated Carbon
Mixing is added in gel solvent, the ultrasonic disperse under ice bath environment, and uses ultraviolet light 1h, microwave drying 50min simultaneously
Antimicrobial form absorbent charcoal powder body is made；By 20wt% antimicrobial form absorbent charcoal powder body and 80wt% alumina powder, add water base, in oxygen
It is heat-treated for 600 DEG C in atmosphere, heating rate is 10 DEG C/min, and cooling to obtain the final product.
Reference examples 2
Powdered Activated Carbon 100g is weighed, is put into trisodium phosphate solution and impregnates 2h, is washed 3 times, is dried in 80 DEG C of baking ovens for 24 hours,
It is spare；4g aluminium isopropoxide is added in 1000ml deionized water, dropwise addition nitric acid to PH is 5,80 DEG C of waters bath with thermostatic control；It is poly- to weigh 3g shell
Icing Sugar, and 0.1g rare earth metal scandium is added, it is uniformly mixed；By above-mentioned natural antibacterial agent and above-mentioned pretreated Powdered Activated Carbon
Mixing is added in gel solvent, stirs under normal temperature environment, and antimicrobial form absorbent charcoal powder body is made in 120 DEG C of oven dryings；It will
20wt% antimicrobial form absorbent charcoal powder body and 80wt% alumina powder, add water base, are heat-treated for 600 DEG C in oxygen atmosphere,
Heating rate is 10 DEG C/min, and cooling to obtain the final product.
Benzene adsorption test, antibacterial tests and light transmittance is carried out to sample made from above embodiments and reference examples respectively to try
It tests, data such as the following table 1：
Each sample performance test value of table 1
Pass through upper table, it can be seen that the benzene absorption property shadow of natural antibacterial agent type and microwave drying treatment mode to each sample
Sound is not very big, and the selection of natural antibacterial agent, the addition of rare earth metal and the selection of preparation method are to the light transmittance of sample
Influenced with anti-microbial property it is very big, and by tables of data 1 and Fig. 2 it can be concluded that, addition rare earth metal can effectively enhance
The anti-microbial property of sample, and using ultrasonic disperse under ice bath environment and using ultraviolet light and the processing side of microwave drying
Formula makes sample have excellent anti-microbial property, and sample also has certain translucency.
The present invention has passed through above-mentioned case study on implementation and has been illustrated, but it is to be understood that, above-mentioned case study on implementation is
Purpose for illustrating and illustrating, and be not intended to limit the invention within the scope of described case study on implementation.The present invention is not
It is confined to above-mentioned case study on implementation, introduction according to the present invention can also make many kinds of modification, all fall within required by the present invention
Within the scope of protection.
Claims (10)
1. a kind of antimicrobial form active carbon ceramic, it is characterised in that：Including natural antibacterial agent, Powdered Activated Carbon, gel and oxidation
Aluminium powder body introduces rare earth metal in the natural antibacterial agent, is heat-treated and is made under oxygen atmosphere.
2. a kind of antimicrobial form active carbon ceramic according to claim 1, it is characterised in that：The natural antibacterial agent is crust
One or more kinds of mixing of matter, chitosan and antibiotic property protein.
3. a kind of antimicrobial form active carbon ceramic according to claim 1, it is characterised in that：The rare earth metal be scandium, yttrium,
One or more kinds of mixing in group of the lanthanides.
4. a kind of antimicrobial form active carbon ceramic according to claim 1, it is characterised in that：The gel uses aluminium isopropoxide
Gel.
5. a kind of preparation method of antimicrobial form active carbon ceramic, which is characterized in that include the following steps：
（1）Pretreatment：Powdered Activated Carbon is weighed, is put into saline solution and impregnates 2h, is washed 3 times, it is dry in 80 DEG C of baking ovens
For 24 hours, spare；
（2）Configure gel solvent：Aluminium isopropoxide is added in deionized water, acid is added dropwise to PH between 4-5,80 DEG C of thermostatted waters
Bath；
（3）Configure antibacterial agent：Rare earth metal is added in natural antibacterial agent powder；
（4）Load antibacterial agent：Natural antibacterial agent and above-mentioned pretreated Powdered Activated Carbon mixing are weighed, gel solvent is added
In, the ultrasonic disperse under ice bath environment, and ultraviolet light 1h is used simultaneously, antimicrobial form absorbent charcoal powder body is made in microwave drying；
（5）Potting：Antimicrobial form absorbent charcoal powder body and alumina powder are weighed, adds water base, is heat-treated in oxygen atmosphere,
Cooling to obtain the final product.
6. a kind of preparation method of antimicrobial form active carbon ceramic according to claim 5, which is characterized in that（1）In step
The salts substances are one of phosphate, carbonate or sulfate.
7. a kind of preparation method of antimicrobial form active carbon ceramic according to claim 5, which is characterized in that（4）In step
The additive amount of natural antibacterial agent is the 1wt%-5wt% of the pretreated Powdered Activated Carbon.
8. a kind of preparation method of antimicrobial form active carbon ceramic according to claim 5, which is characterized in that（2）In step
The mass ratio of the material value of the aluminium isopropoxide and deionized water is 1：（100-200）.
9. a kind of preparation method of antimicrobial form active carbon ceramic according to claim 5, which is characterized in that（5）In step
The additive amount of the antimicrobial form absorbent charcoal powder body is the 20wt%-50wt% of alumina powder.
10. a kind of preparation method of antimicrobial form active carbon ceramic according to claim 5, which is characterized in that（5）In step
The heat treatment temperature is 500-800 DEG C, heating rate：10℃/min.
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| CN112371084A (en) * | 2020-10-20 | 2021-02-19 | 广西南宁都宁通风防护设备有限公司 | Preparation method and application of sterilized activated carbon |
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| CN112371084A (en) * | 2020-10-20 | 2021-02-19 | 广西南宁都宁通风防护设备有限公司 | Preparation method and application of sterilized activated carbon |
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