CN104585235B - Carry silver-colored bentonite and preparation method thereof - Google Patents
Carry silver-colored bentonite and preparation method thereof Download PDFInfo
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- CN104585235B CN104585235B CN201410849777.5A CN201410849777A CN104585235B CN 104585235 B CN104585235 B CN 104585235B CN 201410849777 A CN201410849777 A CN 201410849777A CN 104585235 B CN104585235 B CN 104585235B
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Abstract
The invention discloses a kind of silver-colored preparation method for bentonite of load, the preparation method includes：A, at 85 90 DEG C, bentonite and dilute nitric acid solution are mixed and made into mixed liquor M1；B, at 60 70 DEG C, mixed liquor M1 and water are mixed and made into mixed liquor M2；C, mixed liquor M2, lignin benzene sulfonic acid sodium salt and amino acid is mixed and made into mixed liquor M3；D, in pH it is under conditions of 6.5 7, mixed liquor M3 and silver nitrate to be subjected to haptoreaction the silver-colored bentonite of load is made.The silver-colored bentonite of load being prepared from by this method has excellent anti-microbial property.
Description
Technical field
The present invention relates to bentonite, in particular it relates to which a kind of carry silver-colored bentonite and preparation method thereof.
Background technology
Bentonite is the aqueous clay pit based on montmorillonite.It is such as bloating tendency, viscous because bentonite has special property
Knot property, adsorptivity, catalytic, thixotropy, suspension and cation exchange, so each industrial circle is widely used in, but
It is that bentonite is not used widely also in sterilizing field.
The content of the invention
Silver-colored bentonite and preparation method thereof is carried it is an object of the invention to provide one kind, the load silver being prepared from by this method
Bentonite has excellent anti-microbial property.
To achieve these goals, the invention provides a kind of silver-colored preparation method for bentonite of load, the preparation method
Including：
A, at 85-90 DEG C, bentonite and dilute nitric acid solution are mixed and made into mixed liquor M1；
B, at 60-70 DEG C, mixed liquor M1 and water are mixed and made into mixed liquor M2；
C, mixed liquor M2, lignin benzene sulfonic acid sodium salt and amino acid is mixed and made into mixed liquor M3；
D, under conditions of pH is 6.5-7, mixed liquor M3 and silver nitrate are subjected to haptoreaction the silver-colored bentonite of load are made.
Silver-colored bentonite is carried present invention also offers one kind, the silver-colored bentonite of the load is prepared from by above-mentioned method.
By above-mentioned technical proposal, the silver-colored bentonite of load that the present invention is provided is first passed through is changed bentonite in dust technology
Property, modified bentonite and water, lignin benzene sulfonic acid sodium salt and amino acid are then mixed to form modified bentonite solution,
Silver nitrate and the modified bentonite solution are finally subjected to haptoreaction the silver-colored bentonite of load, the silver-colored bentonite of such load is made
With excellent antibacterial effect.
Other features and advantages of the present invention will be described in detail in subsequent embodiment part.
Embodiment
The embodiment to the present invention is described in detail below.It should be appreciated that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The invention provides a kind of silver-colored preparation method for bentonite of load, the preparation method includes：
A, at 85-90 DEG C, bentonite and dilute nitric acid solution are mixed and made into mixed liquor M1；
B, at 60-70 DEG C, mixed liquor M1 and water are mixed and made into mixed liquor M2；
C, mixed liquor M2, lignin benzene sulfonic acid sodium salt and amino acid is mixed and made into mixed liquor M3；
D, under conditions of pH is 6.5-7, mixed liquor M3 and silver nitrate are subjected to haptoreaction the silver-colored bentonite of load are made.
In the present invention, the specific species of amino acid can be selected in wide scope, but in order that obtain obtained carry
Silver-colored bentonite has more excellent antibacterial effect；Preferably, the amino acid is selected from glycine, glutamic acid, valine and phenylpropyl alcohol
One or more in propylhomoserin.
In the present invention, in step a, the concentration of dilute nitric acid solution can be selected in wide scope, but in order that
Obtaining the obtained silver bentonite that carries has more excellent antibacterial effect；Preferably, in step a, nitric acid in the dilute nitric acid solution
Concentration be 1.2mol/L-1.5mol/L.
In the present invention, in step a, the consumption of each material can be selected in wide scope, but in order that must be made
The silver-colored bentonite of load obtained has more excellent antibacterial effect；Preferably, in step a, relative to the swelling of 1 parts by weight
Soil, the consumption of the dilute nitric acid solution is 30-40 parts by weight.
In the present invention, in stepb, the consumption of each material can be selected in wide scope, but in order that must be made
The silver-colored bentonite of load obtained has more excellent antibacterial effect；Preferably, in stepb, relative to the mixing of 100 parts by weight
Liquid M1, the consumption of the water is 80-120 parts by weight.
In the present invention, in step c, the consumption of each material can be selected in wide scope, but in order that must be made
The silver-colored bentonite of load obtained has more excellent antibacterial effect；Preferably, it is described relative to the mixed liquor M2 of 100 parts by weight
The consumption of lignin benzene sulfonic acid sodium salt is 4-8 parts by weight, and the consumption of the amino acid is 1-5 parts by weight.
In the present invention, in step d, the consumption of each material can be selected in wide scope, but in order that must be made
The silver-colored bentonite of load obtained has more excellent antibacterial effect；Preferably, it is described relative to the mixed liquor M3 of 100 parts by weight
The consumption of silver nitrate is 3-7 parts by weight.
Silver-colored bentonite is carried present invention also offers one kind, the silver-colored bentonite of the load is prepared from by above-mentioned method.
The present invention will be described in detail by way of examples below.In following examples, the detection of antibiotic property passes through《Disappear
Malicious technical specification》In the detection of vibration flask method obtain, choose ATCC8099 Escherichia coli and ATCC6538 Staphylococcus aureus
Bacterium is the detection strain of antibiotic property performance.
Embodiment 1
A, at 88 DEG C, 6g bentonites and 200g dilute nitric acid solutions (1.3mol/L) are mixed and made into mixed liquor M1；
B, at 65 DEG C, 200g mixed liquors M1 and 200g water are mixed and made into mixed liquor M2；
C, 400g mixed liquors M2,20g lignin benzene sulfonic acid sodium salt and 15g glycine be mixed and made into mixed liquor M3；
D, in pH it is under conditions of 6.5, mixed liquor M3 and silver nitrate to be subjected to haptoreaction the silver-colored bentonite A1 of load is made, its
In, the weight ratio of mixed liquor M3 and silver nitrate is 100：5.
The performance of the bentonitic antibiotic property of load silver is shown in Table 1.
Embodiment 2
A, at 85 DEG C, 6g bentonites and 200g dilute nitric acid solutions (1.2mol/L) are mixed and made into mixed liquor M1；
B, at 60 DEG C, 200g mixed liquors M1 and 200g water are mixed and made into mixed liquor M2；
C, 400g mixed liquors M2,4g lignin benzene sulfonic acid sodium salt and 4g glycine be mixed and made into mixed liquor M3；
D, in pH it is under conditions of 6.5, mixed liquor M3 and silver nitrate to be subjected to haptoreaction the silver-colored bentonite A2 of load is made, its
In, the weight ratio of mixed liquor M3 and silver nitrate is 100：3.
The performance of the bentonitic antibiotic property of load silver is shown in Table 1.
Embodiment 3
A, at 90 DEG C, 6g bentonites and 200g dilute nitric acid solutions (1.5mol/L) are mixed and made into mixed liquor M1；
B, at 70 DEG C, 200g mixed liquors M1 and 200g water are mixed and made into mixed liquor M2；
C, 400g mixed liquors M2,32g lignin benzene sulfonic acid sodium salt and 20g glycine be mixed and made into mixed liquor M3；
D, in pH it is under conditions of 7, mixed liquor M3 and silver nitrate to be subjected to haptoreaction the silver-colored bentonite A3 of load is made, its
In, the weight ratio of mixed liquor M3 and silver nitrate is 100：7.
The performance of the bentonitic antibiotic property of load silver is shown in Table 1.
Comparative example 1
Method according to embodiment 1, which be made, carries silver-colored bentonite B1, except that, without lignin benzene sulphur in step c
Sour sodium, the performance of the bentonitic antibiotic property of load silver is shown in Table 1.
Comparative example 2
Method according to embodiment 1, which be made, carries silver-colored bentonite B1, except that, without amino acid in step c, the load
The performance of the bentonitic antibiotic property of silver is shown in Table 1.
Comparative example 3
Method according to embodiment 1, which be made, carries silver-colored bentonite B3, except that, it is catalytic in step d
The pH of environment is 6, and the performance of the bentonitic antibiotic property of load silver is shown in Table 1.
Comparative example 4
Method according to embodiment 1, which be made, carries silver-colored bentonite B4, except that, it is catalytic in step d
The pH of environment is 8, and the performance of the bentonitic antibiotic property of load silver is shown in Table 1.
Table 1
By above-described embodiment and comparative example, the silver-colored bentonite of load that the present invention is provided has excellent anti-microbial property.
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited in above-mentioned embodiment
Detail, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, this
A little simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (5)
1. the silver-colored preparation method for bentonite of a kind of load, it is characterised in that the preparation method includes：
A, at 85-90 DEG C, bentonite and dilute nitric acid solution are mixed and made into mixed liquor M1；
B, at 60-70 DEG C, mixed liquor M1 and water are mixed and made into mixed liquor M2；
C, mixed liquor M2, lignin benzene sulfonic acid sodium salt and amino acid is mixed and made into mixed liquor M3；
D, under conditions of pH is 6.5-7, mixed liquor M3 and silver nitrate are subjected to haptoreaction the silver-colored bentonite of load are made；
Wherein, in step a, relative to the bentonite of 1 parts by weight, the consumption of the dilute nitric acid solution is 30-40 weight
Part；Relative to the mixed liquor M2 of 100 parts by weight, the consumption of the lignin benzene sulfonic acid sodium salt is 4-8 parts by weight, the amino
The consumption of acid is 1-5 parts by weight；Relative to the mixed liquor M3 of 100 parts by weight, the consumption of the silver nitrate is 3-7 weight
Part.
2. preparation method according to claim 1, wherein, the amino acid is selected from glycine, glutamic acid, valine and benzene
One or more in alanine.
3. preparation method according to claim 2, wherein, in step a, the concentration of nitric acid is in the dilute nitric acid solution
1.2mol/L-1.5mol/L。
4. the preparation method according to any one in claim 1-3, wherein, in stepb, relative to 100 parts by weight
The mixed liquor M1, the consumption of the water is 80-120 parts by weight.
5. one kind carries silver-colored bentonite, it is characterised in that the silver-colored bentonite of the load passes through described in any one in claim 1-4
Method be prepared from.
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| CN201410849777.5A CN104585235B (en) | 2014-12-31 | 2014-12-31 | Carry silver-colored bentonite and preparation method thereof |
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| CN104585235B true CN104585235B (en) | 2017-09-01 |
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| CN105968416B (en) * | 2016-05-25 | 2019-01-18 | 吴琦 | A kind of antibacterial agent for antibiotic plastic |
Citations (5)
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|---|---|---|---|---|
| CN1557150A (en) * | 2004-02-13 | 2004-12-29 | 黄德欢 | Nanometer silver antiseptic powder preparation method |
| CN102125055A (en) * | 2010-12-02 | 2011-07-20 | 上海纳米技术及应用国家工程研究中心有限公司 | Sliver-carried nano-montmorillonite antibacterial agent and preparation method thereof |
| CN102599164A (en) * | 2012-01-19 | 2012-07-25 | 西安文理学院 | Preparation method of nano-grade layered silver-carrying-amino acid complex antibacterial agent |
| CN103461382A (en) * | 2013-08-08 | 2013-12-25 | 广东药学院 | Silver-loading modified montmorillonite antibacterial agent, preparation method and application thereof |
| CN104012573A (en) * | 2014-06-05 | 2014-09-03 | 朱岳 | Bentonite-loaded nano silver antibacterial agent and preparation method thereof |
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2014
- 2014-12-31 CN CN201410849777.5A patent/CN104585235B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1557150A (en) * | 2004-02-13 | 2004-12-29 | 黄德欢 | Nanometer silver antiseptic powder preparation method |
| CN102125055A (en) * | 2010-12-02 | 2011-07-20 | 上海纳米技术及应用国家工程研究中心有限公司 | Sliver-carried nano-montmorillonite antibacterial agent and preparation method thereof |
| CN102599164A (en) * | 2012-01-19 | 2012-07-25 | 西安文理学院 | Preparation method of nano-grade layered silver-carrying-amino acid complex antibacterial agent |
| CN103461382A (en) * | 2013-08-08 | 2013-12-25 | 广东药学院 | Silver-loading modified montmorillonite antibacterial agent, preparation method and application thereof |
| CN104012573A (en) * | 2014-06-05 | 2014-09-03 | 朱岳 | Bentonite-loaded nano silver antibacterial agent and preparation method thereof |
Non-Patent Citations (2)
| Title |
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| ed with silver.《Journal of Molecular Catalysis A: Chemical》.2007,第281卷192-199. * |
| S.M. Maga˜na等.Antibacterial activity of montmorillonites modifi * |
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