CN101792151A - Method for improving dispersibility of attapulgite nanometer material - Google Patents
Method for improving dispersibility of attapulgite nanometer material Download PDFInfo
- Publication number
- CN101792151A CN101792151A CN 201010132809 CN201010132809A CN101792151A CN 101792151 A CN101792151 A CN 101792151A CN 201010132809 CN201010132809 CN 201010132809 CN 201010132809 A CN201010132809 A CN 201010132809A CN 101792151 A CN101792151 A CN 101792151A
- Authority
- CN
- China
- Prior art keywords
- attapulgite
- nanometer material
- suspension
- dispersibility
- distilled water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a method for improving the dispersibility of an attapulgite nanometer material. The method comprises the following steps: attapulgite and distilled water are mixed in the mass part ratio of 1:5-10 to prepare suspension; the suspension is moved into a hydrothermal reaction kettle, is heated to react for 8 to 10 hours at the temperature of 150-200 DEG C, is naturally cooled to room temperature, is dried at the temperature of 30-60 DEG C, and is ground and sieved through a 200-meshes sieve to prepare the attapulgite nanometer material with high dispersibility. The method has the advantages of low high-energy, no pollution, convenient operation, strong feasibility and stable product performance.
Description
Technical field
The present invention relates to the environment protecting nano material field, concrete a kind of method that improves dispersibility of attapulgite nanometer material.
Background technology
Attapulgite is a kind of natural nonmetal clay mineral, is the hydrous magnesium aluminosilicate with filamentary structure, and desirable chemical formula is Al (OH
2)
4(OH)
2Mg
5Si
8.4H
2O.The microstructure of attapulgite shows that excellent crystalline substance is the basic structural unit that constitutes attapulgite.The rod crystalline substance is needle-like, is about 1-2 μ m, diameter 0.01 μ m.Therefore, about the classification of nanoparticle (1-100nm), excellent crystalline substance belongs to monodimension nanometer material according at present.Because the attapulgite clay nano specific grain surface is long-pending big, the specific surface energy height belongs to thermodynamic unstable system, and particle coalescence, agglomeration very easily take place in preparation process or in the last handling process, causes losing when finally using due rerum natura of particle and function.Nano-technology Development is to today, and reuniting has become the bottleneck that nanotechnology continues development, and attapulgite nanometer material faces such difficult problem equally.Therefore, need a kind of can effectively attapulgite nanometer material the dispersion, make the method and apparatus of stabilized nano dispersed system, use obstacle thereby overcome the attapulgite clay nano particulate effectively.
The hydrothermal synthesis method hydro-thermal reaction is that the mineralogist is used to study mineral forming process under the super critical condition the earliest in the laboratory, the chemist is by centering, the research in a synthetic century of low-temperature hydrothermal, prepare a lot of mineral compound, comprised fast solid ion conductor, chemical sensing material, composite oxides electronic material, ferrite magnetic material, nonlinear optical material, luminescent material, crystalline microporous material and nano material etc.Yet, utilize hydro-thermal reaction to disperse attapulgite nanometer material still not have report.
The dispersing method of nano material:
One, physics disperses:
(1), mechanical dispersion:
Mechanical dispersion method is to utilize high speed dispersor, under strong shear action, nano particle is reached in matrix effectively disperse.This method adopts mechanical means to realize the group of separating of cluster of grains aggressiveness, and effect is unsatisfactory.Its physical cause is that this method belongs to the mandatory group of separating of mechanical force method, although agglomerating particles is being forced the group of separating under the shear action, intergranular absorption gravitation still exists, and may reunite rapidly again after the group of separating and grow up.
(2): ultrasonic dispersing:
The localized hyperthermia that produces when utilizing ultrasonic cavitation, high pressure or strong impact force and microjet etc., the nanometer interaction energy between nanoparticle of can weakening greatly, preventing effectively that nanoparticle from reuniting and making it disperses.When adopting ultrasonic dispersing,, nanoparticle is reunited once again, in addition if stop ultra-sonic oscillation, ultrasonic wave is to superfine little nano particle, and its dispersion effect is unsatisfactory, because during ultrasonic dispersing, particle resonance accelerated motion increases the particle collision energy, may cause reuniting.
Two, chemical dispersion:
(1), chemical modification is disperseed:
It is exactly the surface group that utilizes nanoparticle that chemical modification is disperseed, with can react organic compound deposits yields chemical bond, form the organic graft compound of nanometer,, strengthen the dispersion of nanoparticle in organic medium by the solubility of organic chain compound in organic medium.Though this method can effectively be disperseed specific nano material, may introduce some unwanted group or change some raw-material characteristic simultaneously at dispersive.
(2), dispersion agent disperses:
Mainly be the surface charge distribution that changes particle by dispersant adsorption, produce electrostatic stabilization and space potential barrier stabilization and reach dispersion effect.The dispersion agent dispersion method can be used for the dispersion in the various collectives nano composite material preparation process, but it should be noted that when the quantity not sufficient that adds dispersion agent or when excessive, may cause flocculation.
Summary of the invention
The invention provides a kind of method that improves dispersibility of attapulgite nanometer material, have the advantage that high energy is low, pollution-free, easy to operate, feasibility is strong, product property is stable.
Technical scheme of the present invention is:
A kind of method that improves dispersibility of attapulgite nanometer material, it is characterized in that: at first attapulgite and distilled water are mixed and made into suspension, suspension is changed in the hydrothermal reaction kettle, at 150-200 ℃ of following reacting by heating 8-10 hour, naturally cool to room temperature, dry, grind, cross 200 mesh sieves, the Attapulgite nano material of the diffusing property that secures satisfactory grades then down at 30-60 ℃.
The method of described raising dispersibility of attapulgite nanometer material is characterized in that: described attapulgite is 1 with the mass parts ratio of distilled water: 5-10.
The principle of the invention is: utilize autoclave, under the cryogenic high pressure condition below 250 ℃, realize the attapulgite hydration reaction, improve its dispersiveness.
Useful achievement of the present invention and innovation part:
Utilize the hydrothermal method to improve the dispersiveness of nano material attapulgite, overcome the shortcoming of other physics, chemical process, have efficient height, low, easy and simple to handle, the clean environment firendly of energy consumption, improved the absorption property of original soil greatly.
Description of drawings
Fig. 1 is the modification of various dose and unmodified attapulgite, and (ATP is the Attapulgite original soil, and M-ATP is the attapulgite after disperseing to the adsorption effect of methylenum coeruleum; The methylene blue starting point concentration is: 100mg/L; Adsorption time is 120 minutes; Temperature is 30 ℃; Shaking speed is 150rpm).
Fig. 2 is the modification of 500mg/L and unmodified attapulgite, and (ATP is the Attapulgite original soil, and M-ATP is the attapulgite after disperseing to the curve of adsorption kinetics of methylenum coeruleum; The methylene blue starting point concentration is: 100mg/L; Temperature is 30 ℃; Shaking speed is 150rpm).
Embodiment
Improve the method for dispersibility of attapulgite nanometer material:
At first with attapulgite and distilled water by 1: the mass parts ratio of 5-10 is mixed and made into suspension, suspension is changed in the hydrothermal reaction kettle of 100mL, then hydrothermal reaction kettle is placed baking oven or retort furnace at 150-200 ℃ of following reacting by heating 8-10 hour, naturally cool to room temperature, then 30-60 ℃ of down oven dry, grind, cross 200 mesh sieves, the secure satisfactory grades Attapulgite nano material of diffusing property of modification.
Claims (2)
1. method that improves dispersibility of attapulgite nanometer material, it is characterized in that: at first attapulgite and distilled water are mixed and made into suspension, suspension is changed in the hydrothermal reaction kettle, at 150-200 ℃ of following reacting by heating 8-10 hour, naturally cool to room temperature, dry, grind, cross 200 mesh sieves, the Attapulgite nano material of the diffusing property that secures satisfactory grades then down at 30-60 ℃.
2. the method for raising dispersibility of attapulgite nanometer material according to claim 1 is characterized in that: described attapulgite is 1 with the mass parts ratio of distilled water: 5-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010132809 CN101792151A (en) | 2010-03-22 | 2010-03-22 | Method for improving dispersibility of attapulgite nanometer material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010132809 CN101792151A (en) | 2010-03-22 | 2010-03-22 | Method for improving dispersibility of attapulgite nanometer material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101792151A true CN101792151A (en) | 2010-08-04 |
Family
ID=42585108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010132809 Pending CN101792151A (en) | 2010-03-22 | 2010-03-22 | Method for improving dispersibility of attapulgite nanometer material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101792151A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191696A (en) * | 2013-04-10 | 2013-07-10 | 合肥工业大学 | Method for improving adsorption property of attapulgite by using hydrothermal process |
-
2010
- 2010-03-22 CN CN 201010132809 patent/CN101792151A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 《水热结晶学》 20040930 施尔畏等 水热制备技术概述 第36-37页 1-2 , 1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103191696A (en) * | 2013-04-10 | 2013-07-10 | 合肥工业大学 | Method for improving adsorption property of attapulgite by using hydrothermal process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Sankar et al. | Biogenerated silica nanoparticles synthesized from sticky, red, and brown rice husk ashes by a chemical method | |
| Charkhi et al. | Optimized experimental design for natural clinoptilolite zeolite ball milling to produce nano powders | |
| Mucsi et al. | Control of geopolymer properties by grinding of land filled fly ash | |
| Shen et al. | Porous silica and carbon derived materials from rice husk pyrolysis char | |
| Sánchez‐Soto et al. | Effects of dry grinding on the structural changes of kaolinite powders | |
| Balczár et al. | Mechanochemical and thermal activation of kaolin for manufacturing geopolymer mortars–Comparative study | |
| Kavaz et al. | Synthesizing nano silica nanoparticles from barley grain waste: effect of temperature on mechanical properties. | |
| Chen et al. | Stably dispersed high-temperature Fe 3 O 4/silicone-oil nanofluids for direct solar thermal energy harvesting | |
| Panasenko et al. | A novel approach for rice straw agricultural waste utilization: Synthesis of solid aluminosilicate matrices for cesium immobilization | |
| CN103370276A (en) | Method for preparing a composition including synthetic inorganic particles | |
| Zhang et al. | Dry grinding effect on pyrophyllite–quartz natural mixture and its influence on the structural alternation of pyrophyllite | |
| Mukhtar et al. | Effect of milling time on particle size and surface morphology of commercial zeolite by planetary ball mill | |
| CN1265887C (en) | Method for preparing nanometer ultra-fine tourmaline powder | |
| Ghani et al. | Hydrothermal extraction of amorphous silica from locally available slate | |
| Salah et al. | Carbon rich fly ash and their nanostructures | |
| Qian et al. | Coal waste to two-dimensional materials: Fabrication of α-Fe2O3 nanosheets and MgO nanosheets from brown coal fly ash | |
| Akhayere et al. | Nano-silica and nano-zeolite synthesized from barley grass straw for effective removal of gasoline from aqueous solution: A comparative study | |
| Saravanan et al. | An extensive review on mesoporous silica from inexpensive resources: Properties, synthesis, and application toward modern technologies | |
| Rahim et al. | Production of activated carbon and precipitated white nanosilica from rice husk ash,'' | |
| Xu et al. | Synthesis of ordered mesoporous silica from biomass ash and its application in CO2 adsorption | |
| Sikder et al. | Effect of processing parameters on the development of anisotropic α-Al2O3 platelets during molten salt synthesis | |
| CN101792151A (en) | Method for improving dispersibility of attapulgite nanometer material | |
| CN103949205B (en) | A kind of nanometer of mixed layer assembles preparation method and the application thereof of clay mineral material | |
| Pérez-Rodríguez et al. | The effect of sonication on dioctahedral and trioctahedral micas | |
| Mittal et al. | Physical adsorption of organic molecules on the surface of layered silicate clay platelets: A thermogravimetric study |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100804 |