CN104128196A - Super-macroporous material loaded with silver nanoparticles and preparation method thereof - Google Patents
Super-macroporous material loaded with silver nanoparticles and preparation method thereof Download PDFInfo
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- CN104128196A CN104128196A CN201410377718.2A CN201410377718A CN104128196A CN 104128196 A CN104128196 A CN 104128196A CN 201410377718 A CN201410377718 A CN 201410377718A CN 104128196 A CN104128196 A CN 104128196A
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Abstract
The invention discloses a super-macroporous material loaded with silver nanoparticles and a preparation method thereof; barnacle shell is used as a template agent, a certain amount of phosphate is added for synthesis of calcium carbonate, calcium phosphate and hydroxyapatite super-macroporous composite material, the super-macroporous composite material as a carrier is soaked in an aqueous solution of silver ammonia complex ions, and then is sintered at high temperature, and the super-macroporous material is loaded with the silver nanoparticles. According to the method, effective regulation of size and dispersion property of the silver nanoparticles can be realized, the uniform-particle-size and good-dispersion macroporous material loaded with the silver nanoparticles can be obtained, the super-macroporous material has large specific surface area, has the strong adsorption capacity and bearing capacity, especially by loading of the nano silver particles, the super-macroporous material product has wide application prospects in catalysis and antibacterial and other fields, and the super-macroporous material has the advantages of simple preparation process, low cost, and less investment and is suitable for mass production.
Description
Technical field
The invention belongs to Material Field, be specifically related to a kind of silver nanoparticles loaded super big hole material and preparation method thereof.
Background technology
Porous material has strengthened the performances such as its catalysis and absorption owing to having large surface area, thereby is widely used in the fields such as gas absorption, separation, heterocatalysis and ion-exchange.
Nano particle has Large ratio surface and causes the physics of material, chemical property to change with significant quantum size effect, thereby has a wide range of applications in fields such as bio-sensing, catalysis, photoelectricity conduction.
Wherein the purposes of nano-Ag particles is the most extensive, and its main application fields has: the Measurement of Low Temperature Thermal Conductivity of Nano Silver is high and specific area is large, and this makes Nano Silver become good low temperature Heat Conduction Material; As catalyst, for alkadienes, alkynes selective hydrogenation monoolefine processed, ethylene selectivity is oxidized epoxy ethane, the alkanisation alkylaromatic hydrocarbon processed of aromatic hydrocarbons, methane prepared by ammoxidation hydrogen cyanide, methyl alcohol selective oxidation formaldehyde processed etc.; As anti-biotic material for the production of antibiotic odourproof fiber, antibiotic plastic, antibiotic paint, anti-bacteria ceramic etc.; Silver-doped nano particle in insulator and semiconductor, makes it have good optical characteristics, is suitable for manufacturing various Novel Optoelectronic Devices.
Therefore nano-Ag particles is loaded on large pore material and will have important application at aspects such as catalysis, biomedicine, environment.Scholars are a lot of to the preparation research of loading nano silvery particle, as disclosure of the invention such as Wang Xin a kind of graphite oxide and preparation method thereof of loading nanometer metallic silver corpuscle (Wang's letter, Xu Chao, Zhu Junwu, Deng, graphite oxide of loading nanometer metallic silver corpuscle and preparation method thereof, application number/patent No. 200710135561), but this method preparation process is more complicated; He Junhui etc. be take the abundant natural fiber existing of occurring in nature and are obtained the silver nano-grain (He Junhui that original position is carried on surface of natural fibers as template, Zhu Chunyang, be carried on the method for in-situ preparation of silver nanoparticles on natural cellulose sheet, application number/patent No. 200810116208), the method is with low cost, technique is simple, but poor with the heat endurance of natural cellulose sheet, is not suitable for applying at high temperature; The method that the use sol-gels such as Lin Changjian and hydrothermal treatment consists combine, at titania nanotube and titanium dioxide nano-belts load Nano silver grain (Lin Changjian, Chen Yicong, Zhuan Huifang etc., the method of loading silver nanometer particles onto nanometer titanium dioxide, application number/patent No. 200510126613), can be in different titanium dioxide nanostructures load Nano silver grain, but titanium dioxide cost is too high, be not suitable for large-scale production.Within 1996, Luo Meng flies, and the people such as Fu Wenli studies show that load ag material is to N
xo, CO etc. have good catalytic (chemistry circular, 1996,4,30-32).
Summary of the invention
For the above state of the art, technical problem to be solved by this invention is to provide a kind of, and preparation process is simple, with low cost, has silver nanoparticles loaded super big hole material of good catalytic performance and preparation method thereof.
The present invention solves the problems of the technologies described above adopted technical scheme to be: a kind of preparation method of silver nanoparticles loaded super big hole material, it is characterized in that described preparation method is that to take balanite and phosphate be raw material, by method synthetic calcium carbonate, calcium phosphate and the hydroxyapatite super big hole composite of hydro-thermal, then take this super big hole composite is carrier, adopt the method for dipping, reduction to prepare the super big hole material of silver nanoparticles loaded, specifically comprise the following steps:
(1) get commercially available balanite (main component is calcium carbonate, and calcium carbonate content is 85-95%), be cut into bulk;
(2) get and be above-mentionedly cut into block balanite and in distilled water, hydrogen peroxide, alcohol, carrene, soak 10～30 hours respectively, then with alcohol, rinse, dry, standby;
(3) get above-mentioned pretreated balanite, phosphate and water and put into reactor, sealing is reacted 24～72 hours at 110～200 ℃, is cooled to room temperature, dry, standby; Wherein balanite is that 1:1～3 take by calcium ion with the ratio of the molal quantity of phosphate anion with phosphatic amount;
(4) product of above-mentioned (3) hydro-thermal reaction is put into crucible electrical resistance furnace, at the temperature of 400-950 ℃, carry out high temperature sintering 1～2 hour, obtain calcium carbonate, calcium phosphate and hydroxyapatite super big hole composite;
(5) the product calcium carbonate of high temperature sintering, calcium phosphate and hydroxyapatite super big hole composite are soaked after 6～24 hours in the aqueous solution of silver-colored ammonia complex ion, in the D/W of 0.5M, carry out reduction reaction 5～20 hours, then dry, carry out again high temperature sintering, obtain silver nanoparticles loaded super big hole composite.
Described phosphate is ammonium hydrogen phosphate, ammonium dihydrogen phosphate (ADP).
Described silver-colored ammonia complex ion is [Ag (NH
3)
2]
+.
As preferably, described calcium ion is 1:2 with the ratio of the molal quantity of phosphate anion.
In the aqueous solution of described silver-colored ammonia complex ion, the concentration of silver-colored ammonia complex ion is 0.05～2.00 mol/L.
The large I of described silver nano-grain regulated and controled by its time of reduction reaction in D/W.
The present invention is usingd balanite as template, by hydro-thermal reaction, artificial synthetic calcium carbonate, calcium phosphate and hydroxyapatite super big hole composite have been realized, and take super big hole composite as carrier, load silver nano-grain, realize silver nanoparticle particle diameter size and dispersed Effective Regulation, obtained the silver nanoparticles loaded super big hole material of uniform particle diameter, favorable dispersibility.This composite is block loose structure, has surface area large, and absorption and bearing capacity are strong, because specific surface is large, and the particularly load of nano-Ag particles, this product can also be as good catalyst and anti-biotic material.
Compared with prior art, advantage of the present invention is as follows:
1, reaction raw materials is chemical reagent common and that price is lower, and wherein template used is balanite, and these raw material sources are wide, and low price, so low production cost;
2, the present invention makes calcium carbonate and the phosphate reaction in balanite under HTHP hydrothermal condition, part calcium carbonate is converted into calcium phosphate and hydroxyapatite, then by high temperature sintering, removes organic matter, successfully synthesize porosity high, aperture is large, the super big hole composite that mechanical strength is good.The prepared super big hole composite of take is carrier, by controlling the concentration of silver-colored ammonia complex ion and the concentration of reducing agent glucose, realized silver nanoparticles loaded particle size and dispersed Effective Regulation, obtained the silver nanoparticles loaded super big hole composite of uniform particle diameter, favorable dispersibility, prepared silver nanoparticles loaded super big hole composite, has broad application prospects in catalysis and the field such as antibacterial;
3, preparation technology of the present invention is simple, and production efficiency is high, and equipment investment is few, and whole production process, without any pollution, meets sustainable development requirement simultaneously.
Accompanying drawing explanation
Fig. 1 is the scanning electron microscope (SEM) photograph of the super big hole composite silver nanoparticles loaded prepared of the present invention.
The specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
Embodiment 1
Get city's balanite, be cut into piece, in distilled water, hydrogen peroxide, alcohol, carrene, soak 10 hours respectively, then with alcohol, rinse, dry, standby.Take the block balanite of 0.50g in thering is teflon-lined stainless steel cauldron, then the ratio that is 1:1 in the ratio of calcium ion and the molal quantity of phosphate anion takes diammonium hydrogen phosphate salt 0.66g in reactor, add 15 milliliters of distilled water, sealing.At the temperature of 110 ℃, reaction kettle for reaction is 72 hours, after reaction finishes, naturally cools to room temperature, with distilled water flushing, at the temperature of 120 ℃, is dried 3 hours.By above-mentioned product, in crucible electrical resistance furnace, at the temperature of 950 ℃, high temperature sintering is 1 hour.Prepare the silver-colored ammonia complex ion solution of 2.0 mol/L, sintered product was immersed in silver-colored ammonia complex ion solution after 6 hours, carry out reduction reaction 20 hours in the D/W of 0.5M, in crucible electrical resistance furnace, at the temperature of 500 ℃, high temperature sintering is 2 hours.
The product that reaction is obtained carries out x-ray powder diffraction instrument analysis and scanning electron microscope test, result shows that product is the compound of calcium carbonate (59%), calcium phosphate (20%), hydroxyapatite (20%) and nano-Ag particles (1%), and material aperture is about 500 microns.The nano-Ag particles of load is uniformly distributed.
Embodiment 2
Get commercially available balanite, be cut into piece, in distilled water, hydrogen peroxide, alcohol, carrene, soak 30 hours respectively, then with alcohol, rinse, dry, standby.Take the block balanite of 0.50g in thering is teflon-lined stainless steel cauldron, then the ratio that is 1:2 in the ratio of calcium ion and the molal quantity of phosphate anion takes diammonium hydrogen phosphate salt 1.32g in reactor, add 15 milliliters of distilled water, sealing.At the temperature of 200 ℃, reaction kettle for reaction 24 hours, after finishing, reaction naturally cools to room temperature, with distilled water flushing, and at the temperature of 120 ℃ dry 2 hours.By above-mentioned product, in crucible electrical resistance furnace, at the temperature of 400 ℃, high temperature sintering is 2 hours.Prepare the silver-colored ammonia complex ion solution of 0.05 mol/L, sintered product was immersed in silver-colored ammonia complex ion solution after 24 hours, carry out reduction reaction 5 hours in the D/W of 0.5M, in crucible electrical resistance furnace, at the temperature of 700 ℃, high temperature sintering is 1 hour.
The product that reaction is obtained carries out x-ray powder diffraction instrument analysis and scanning electron microscope test.Test result shows that product is the compound of calcium carbonate (10%), calcium phosphate (40%), hydroxyapatite (49.9%) and nano-Ag particles (0.1%), and material aperture is about 1800 microns.The nano-Ag particles of load is uniformly distributed.
Embodiment 3
Get city's balanite, be cut into piece, in distilled water, hydrogen peroxide, alcohol, carrene, soak 24 hours respectively, then with alcohol, rinse, dry, standby.Take the block balanite of 0.50g in thering is teflon-lined stainless steel cauldron, then the ratio that is 1:3 in the ratio of calcium ion and the molal quantity of phosphate anion takes diammonium hydrogen phosphate salt 1.98g in reactor, add 15 milliliters of distilled water, sealing.At the temperature of 160 ℃, reaction kettle for reaction 48 hours, after finishing, reaction naturally cools to room temperature, with distilled water flushing, and at the temperature of 120 ℃ dry 2 hours.By above-mentioned product, in crucible electrical resistance furnace, at the temperature of 800 ℃, high temperature sintering is 1 hour.
Prepare the silver-colored ammonia complex ion solution of 0.5 mol/L, sintered product was immersed in silver-colored ammonia complex ion solution after 12 hours, carry out reduction reaction 15 hours in the D/W of 0.5M, in crucible electrical resistance furnace, at the temperature of 600 ℃, high temperature sintering is 1.5 hours.
The product that reaction is obtained carries out x-ray powder diffraction instrument analysis and scanning electron microscope test, test result shows that product is the compound of calcium carbonate (20%), calcium phosphate (29%), hydroxyapatite (50%) and nano-Ag particles (1%), and material aperture is about 900 microns.The nano-Ag particles of load is uniformly distributed.
Those of ordinary skill in the field are to be understood that: the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a preparation method for silver nanoparticles loaded super big hole material, is characterized in that step is followed successively by:
(1) by balanite stripping and slicing, in distilled water, hydrogen peroxide, alcohol, carrene, soak 10～30 hours respectively, then with alcohol, rinse, dry;
(2) get above-mentioned pretreated balanite, phosphate and distilled water and put into reactor, sealing is reacted 24～72 hours at the temperature of 110～200 ℃, naturally cools to room temperature, with distilled water flushing, dry.Wherein balanite is that 1:1～3 take by calcium ion with the ratio of the molal quantity of phosphate anion with phosphatic amount; ;
(3) by the product of above-mentioned steps (2) in crucible electrical resistance furnace, at the temperature of 400～950 ℃, sintering is 1～2 hour, obtains calcium carbonate, calcium phosphate, hydroxyapatite super big hole composite;
(4) calcium carbonate, calcium phosphate and hydroxyapatite super big hole composite are soaked after 6～24 hours in the aqueous solution of silver-colored ammonia complex ion, in the D/W of 0.5M, carry out reduction reaction 5～20 hours, then dry, carry out again high temperature sintering, obtain silver nanoparticles loaded super big hole composite.
2. the preparation method of silver nanoparticles loaded super big hole material according to claim 1, is characterized in that in the aqueous solution of described silver-colored ammonia complex ion, silver-colored ammonia complex ion is [Ag (NH
3)
2]
+, its concentration is 0.05～2.00 mol/L.
3. the preparation method of silver nanoparticles loaded super big hole material according to claim 1, is characterized in that the particle diameter of described silver nanoparticles loaded can regulate and control according to the time of the concentration of silver-colored ammonia complex ion and reduction reaction.
4. the preparation method of silver nanoparticles loaded super big hole material according to claim 1, what it is characterized in that described silver nanoparticles loaded super big hole composite consists of calcium carbonate 10～59%, calcium phosphate 20～40% and hydroxyapatite (20～50% and silver nano-grain 0.1～1%.
5. the preparation method of silver nanoparticles loaded super big hole material according to claim 1, the aperture that it is characterized in that described silver nanoparticles loaded super big hole composite is 500～1800 microns.
6. a silver nanoparticles loaded super big hole material, is characterized in that described silver nanoparticles loaded super big hole material makes according to the preparation method of the silver nanoparticles loaded super big hole material described in any one in claim 1～5.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108838407A (en) * | 2018-06-28 | 2018-11-20 | 浙江加州国际纳米技术研究院台州分院 | A kind of phosphate/nano silver composite conductive powder |
| US10470463B2 (en) | 2015-12-23 | 2019-11-12 | Silver Future Co., Ltd. | Antibacterial product and method of manufacturing the same |
| CN111226917A (en) * | 2020-03-26 | 2020-06-05 | 深圳市亚微新材料有限公司 | Preparation method of zirconium hydrogen phosphate nano-silver antibacterial composite material |
| CN112516971A (en) * | 2020-12-15 | 2021-03-19 | 河南省科学院化学研究所有限公司 | Chitosan composite adsorption material, preparation method and application |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08119821A (en) * | 1994-10-21 | 1996-05-14 | High Dentaru Japan Kk | Antibacterial resin for dentistry |
| KR20050055100A (en) * | 2003-12-05 | 2005-06-13 | 요업기술원 | Bone filler comprising ag-doped hydroxyapatite |
| CN101151967A (en) * | 2006-09-28 | 2008-04-02 | 广东海洋大学 | Nano antimicrobial powder body with shell powder as carrier and method for preparing the same |
| CN101987208A (en) * | 2009-08-03 | 2011-03-23 | 宁波大学 | Multi-phase large-aperture bone regeneration bracket material transformed from cuttlebone and preparation method thereof |
| CN102274737A (en) * | 2010-06-13 | 2011-12-14 | 宁波大学 | Method for preparing macroporous material loaded with silver nanometer particles |
| CN103835124A (en) * | 2014-02-28 | 2014-06-04 | 河南省科学院化学研究所有限公司 | Silver-carried cotton fabric antibacterial material and preparation method thereof |
-
2014
- 2014-08-01 CN CN201410377718.2A patent/CN104128196B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08119821A (en) * | 1994-10-21 | 1996-05-14 | High Dentaru Japan Kk | Antibacterial resin for dentistry |
| KR20050055100A (en) * | 2003-12-05 | 2005-06-13 | 요업기술원 | Bone filler comprising ag-doped hydroxyapatite |
| CN101151967A (en) * | 2006-09-28 | 2008-04-02 | 广东海洋大学 | Nano antimicrobial powder body with shell powder as carrier and method for preparing the same |
| CN101987208A (en) * | 2009-08-03 | 2011-03-23 | 宁波大学 | Multi-phase large-aperture bone regeneration bracket material transformed from cuttlebone and preparation method thereof |
| CN102274737A (en) * | 2010-06-13 | 2011-12-14 | 宁波大学 | Method for preparing macroporous material loaded with silver nanometer particles |
| CN103835124A (en) * | 2014-02-28 | 2014-06-04 | 河南省科学院化学研究所有限公司 | Silver-carried cotton fabric antibacterial material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 赖水发等: "网纹藤壶壳板矿化结构及其碳酸钙含量测定", 《海洋科学》 * |
| 陶凯: "乌贼骨转化羟基磷灰石材料（CBHA）的制备及其作为骨组织工程支架材料的应用基础研究", 《中国优秀博硕士学位论文全文数据库（博士）医药卫生科技辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10470463B2 (en) | 2015-12-23 | 2019-11-12 | Silver Future Co., Ltd. | Antibacterial product and method of manufacturing the same |
| CN108838407A (en) * | 2018-06-28 | 2018-11-20 | 浙江加州国际纳米技术研究院台州分院 | A kind of phosphate/nano silver composite conductive powder |
| CN111226917A (en) * | 2020-03-26 | 2020-06-05 | 深圳市亚微新材料有限公司 | Preparation method of zirconium hydrogen phosphate nano-silver antibacterial composite material |
| CN112516971A (en) * | 2020-12-15 | 2021-03-19 | 河南省科学院化学研究所有限公司 | Chitosan composite adsorption material, preparation method and application |
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