CN109894096A - Adsorb the microballoon and preparation method thereof of dyestuff composite hydrogel - Google Patents
Adsorb the microballoon and preparation method thereof of dyestuff composite hydrogel Download PDFInfo
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- CN109894096A CN109894096A CN201910269759.2A CN201910269759A CN109894096A CN 109894096 A CN109894096 A CN 109894096A CN 201910269759 A CN201910269759 A CN 201910269759A CN 109894096 A CN109894096 A CN 109894096A
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- dyestuff
- calcium nitrate
- microballoon
- composite hydrogel
- sodium alginate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28016—Particle form
- B01J20/28019—Spherical, ellipsoidal or cylindrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28047—Gels
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
Abstract
The present invention relates to the microballoons and preparation method thereof of absorption dyestuff composite hydrogel.Microballoon is made of sodium alginate, magnesium monohydrogen phosphate, aluminium oxide, attapulgite, calcium nitrate, ammonium hydroxide and phosphoric acid.Preparation method: sodium alginate soln and magnesium monohydrogen phosphate solution are (1) successively prepared with deionized water；(2) two solution of step (1) are mixed, after being warming up to 50 DEG C, with magnetic stirrer 1.5 hours；(3) 0.5~1 gram of aluminium oxide is taken, and stirring is added in the mixed liquor of step (2)；(4) take 1~10 gram of attapulgite to be placed in 102 DEG C of baking ovens 2 hours dry, quickly stirring is added in the mixed liquor of step (3), continues stirring 0.5 hour；(5) the calcium nitrate solution that mass concentration is 0.02~0.06 grams per milliliter is prepared, under stiring (4) step is obtained to mixed liquor and is added dropwise in calcium nitrate solution with syringe, hydrogel microsphere continuation is formed and is stirred overnight in calcium nitrate solution；By step (5) in gel after the screen to filtrate, clean 5 times with deionized water to get composite hydrogel microballoon.
Description
Technical field
It with sodium alginate is original more particularly, to one kind the present invention relates to a kind of preparation field of high-strength composite hydrogel
The microballoon and preparation method thereof of material preparation absorption dyestuff composite hydrogel.
Background technique
Organic dyestuff is widely used in dyeing, printing and textile industry, the in recent years weaving of developing country's rapid growth
Industry causes a large amount of waste water from dyestuff to enter directly into natural water without being effectively treated, to the health of aquatic animals and plants and public peace
It causes damages entirely.Methylene blue is in dyeing in a kind of most-often used Cationic organic dyes and dyeing waste water
A kind of major pollutants.After the waste water containing methylene blue is to eyes, the inflammation of eyelid irritation can lead to and with strong
Strong burning sensation.Methylene blue acute exposure can cause the serious life threats such as dizziness, vomiting, shock even paralysis to human body.
High-efficiency adsorbent is added into dyeing waste water, is a kind of most common technical method in decolorizing printing and dyeing waste water processing,
Have many advantages, such as easy to operate, low in cost, high-efficient.Hydrogel is by into the high molecular polymer with reticular structure
Introducing crosslinked dosage form at three-dimensional high molecular crosslink polymer, water absorption and swelling can occur in aqueous solution, have very to organic dyestuff
Good adsorption capacity is a kind of important adsorbent material.Hydrogel can be divided into natural polymer water-setting according to its raw material sources difference
Glue and synthesis macromolecule hydrogel.For natural polymer gel mostly using alginate as raw material, adsorption capacity is big, and genotoxic potential is small,
But bad mechanical strength；Chemical synthesis gel structure stability, but bio-toxicity is big, preparation process requirement, meeting pair after product abandonment
Environment generates biggish negative effect.Therefore current research is mostly to carry out method of modifying around sodium alginate gel, to protect
Its structural strength is improved while holding the advantages such as natural hydrogel low toxicity, high adsorption.
Existing research reports the methods of the chitin modified method of polyvinyl alcohol-, fixed graphene oxide method and improves alginic acid
Sodium microballoon intensity, but adsorption capacity is remarkably decreased.The poly- modified method of glutaraldehyde-acid cure and hectorite investment can be improved modified
Sodium alginate gel adsorbance, but preparation process is complicated, and expensive starting materials, toxicity are big, do not utilize large-scale production and industrialization
Using.
Hydroxyl calcium phosphate is a kind of natural mineral particles, has high biocompatibility, good chemical stability and machine
Tool intensity.Mineral particle (hydroxyl calcium phosphate and calcium phosphate) is introduced in alginate, the machinery that can significantly increase gel is strong
Degree, but may be decreased the adsorption capacity of gel micro-ball simultaneously.There is research solidifying using the mineral of coprecipitation preparation calcium phosphate containing hydroxyl
Glue, it is very limited to the adsorbance of organic dyestuff.Existing sodium alginate base gel can not meet high mechanical strength and high suction simultaneously
The defect of attached performance.Sodium aluminosilicate-alginate microballoon how is improved to have not been reported the adsorbance of methylene blue.Cause
This is badly in need of developing a kind of new alginate synthetic method, and this method needs to have low cost, easy-operating feature, both
The mechanical strength of gel can be effectively improved, strengthens adsorption capacity of the gel micro-ball to methylene blue, environmentally safe nothing again
Poison, application easy to spread.
CN201710729047.5 discloses a kind of preparation method of hydrogel microsphere for adsorbing dye ions, its purpose
Be to provide it is a kind of it is easy to operate, process is simple, technique is controllable, it is reproducible, low in cost, convenient for promoting the use of, water obtained
Gel micro-ball adsorbent material has the performance of good dyestuff contaminant, while can also reduce pollution, cleaning ambient, has wide
The preparation method of the hydrogel microsphere of the absorption dye ions of general application prospect.The technical solution: the absorption dye ions
Hydrogel microsphere preparation method, comprising the following steps:
(1) the polyvinyl alcohol of certain mass, sodium alginate, deionized water are added in there-necked flask and are placed in 85~100 DEG C
In water, 1~4h of mechanical stirring makes it completely dissolved and is uniformly mixed；
(2) above-mentioned solution is down in 50~80 DEG C of water-bath and is heated, while a certain amount of tannic acid is added, and stir 0.5
~1.5h is uniformly mixed mixed liquor；
(3) good mixed liquor made above is instilled in calcium chloride-boric acid saturated solution using syringe and be chemically crosslinked
It is prepared into the uniform spheric granules hydrogel that particle size is 1.0~1.5mm and impregnates 6~18h, finally rushed with deionized water
It washes 2~4 times, is freeze-dried, can be prepared by hydrogel microsphere.
Disadvantage is that: high temperature (85~100 DEG C) dissolutions crosslinking agent (polyvinyl alcohol, sea are (1) needed in production process
Mosanom), energy consumption is high, requires process equipment high；(2) one of raw material tannic acid is to the toxic effect of water environment, in production process
The waste liquid of generation must be unified to collect, and subsequent processing is complicated；(3) the gel surface functionality functional group prepared is single, and adsorption efficiency is not
It is high；(4) polyvinyl alcohol gel toughness is high, but hardness is lower, wears no resistance, and easily occurs to be crushed, using limited.
Summary of the invention
Fabricated in situ nanoscale hydroxyl calcium phosphate method is used the object of the present invention is to provide a kind of, mineral are introduced inside gel
Particle, and be added aluminium oxide simultaneously and attapulgite prepare alginate absorption dyestuff composite hydrogel microballoon.The present invention
Another object be to provide it is a kind of while sodium alginate and calcium nitrate are crosslinked, using magnesium monohydrogen phosphate and calcium nitrate in suitable pH
Reaction generates two kinds of mineral particles of hydroxyl calcium phosphate and calcium phosphate under environment, is evenly distributed on the netted knot of sodium alginate/calcium ion
In structure, interface cohesion is secured, enhances the mechanical stability of hydrogel, improves the mechanical strength of gel networks；By aluminium oxide
Be dispersed in polymerisation medium with attapulgite, improve plural gel to the adsorption capacity of dyestuff using its porosity characteristic, and by this
Two kinds of adsorption enhancers (aluminium oxide and attapulgite) combine with sodium alginate/calcium nitrate polymeric system, utilize oxidation
Aluminium surface functional group, attapulgite layered crystal structure and internal nanoscale hole channel enhance the absorption dyestuff of gel adsorption
The preparation method of composite hydrogel microballoon.
The technical solution of the invention is as follows it is described absorption dyestuff composite hydrogel microballoon, be characterized in that, by
Sodium alginate, magnesium monohydrogen phosphate, aluminium oxide, attapulgite, calcium nitrate, ammonium hydroxide and phosphoric acid are made；Wherein magnesium monohydrogen phosphate and calcium nitrate
Under pH=8.4 environment, the mineral microparticle of hydroxyl calcium phosphate is generated；The Si-O key of the mineral grain and the attapulgite's surface
Collective effect strengthens the reticular structure that sodium alginate and calcium ion crosslinking are formed, to improve the intensity of hydrogel；The concave convex rod
Soil is also known as palygorskite, is the aqueous rich magnesium aluminosilicate clays mineral for having chain layer structure, and internal cellular shape structure can increase
Porosity inside gel makes it have adsorption capacity to dyestuff.
As preferred: the quality accounting of the ammonium hydroxide and phosphoric acid is 1:4.
As preferred: the microballoon is made of the following components:
18%~36% magnesium monohydrogen phosphate of sodium alginate, 5%~14% aluminium oxide 1%~3%
24%~58% calcium nitrate 11%~24% of attapulgite.
Another technical solution of the invention is the method for preparing microsphere of the absorption dyestuff composite hydrogel, special
Place is, comprising the following steps:
(1) successively prepared with deionized water mass concentration be 0.03~0.08 grams per milliliter sodium alginate soln and 0.01~
The magnesium monohydrogen phosphate solution of 0.04 grams per milliliter；
By step (1) in two kinds of solution mix, after being warming up to 50 DEG C, with magnetic stirrer 1.5 hours；
(3) 0.5~1 gram of aluminium oxide is taken, is added in (2) mixed liquor that step obtains under fast stirring, stirring 0.5 is continued
Hour；
(4) take 1~10 gram of attapulgite to be placed in 102 DEG C of baking ovens 2 hours dry, be then added to step under fast stirring
Suddenly it in the mixed liquor (3) obtained, continues to quickly stir 0.5 hour later；
(5) (4) the calcium nitrate solution for preparing 0.02~0.06 grams per milliliter of mass concentration, under fast stirring obtains step
Mixed liquor be added dropwise in calcium nitrate solution with syringe, the hydrogel microsphere of formation continues stirred in calcium nitrate solution
Night；
(6) by the gel (5) obtained in step after the screen to filtrate, 5 times are cleaned with deionized water and is inhaled to get to high-intensitive height
The composite hydrogel microballoon of attached property.
As preferred: the aluminium oxide has hydrophobicity, and absorption dyestuff can be assisted by cationic bridging action.
As preferred: the attapulgite is also known as palygorskite, is a kind of aqueous rich magnesium aluminosilicate for having chain layer structure
Clay mineral, internal cellular shape structure can increase the porosity inside gel, effectively improve the porosity of gel micro-ball, make it
There is adsorption capacity to dyestuff.
As preferred: the composite hydrogel microballoon of manufacture is for adsorbing dye ions.
Compared with prior art, beneficial effects of the present invention:
(1) the mineral microparticle for the hydroxyl calcium phosphate that composite hydrogel microballoon of the invention generates and the Si-O of attapulgite's surface
Key collective effect strengthens the reticular structure that sodium alginate and calcium ion crosslinking are formed, can greatly improve the intensity of hydrogel, be detailed in
Shown in Fig. 2.
(2) by introducing aluminium oxide the hydrophobicity of gel surface can be improved, and auxiliary by cationic bridging action in the present invention
Absorption dyestuff is helped, to remove the dyestuff in water removal.
(3) the present invention can effectively improve the porosity of gel micro-ball by the attapulgite of introducing gel rubber system, so that its
There is stronger adsorption capacity to dyestuff.
(4) composite hydrogel microballoon produced by the present invention has degradable, high mechanical strength, adsorption capacity height, bio-compatible
The advantages that property is good, and use can be repeatedly regenerated after adsorption saturation, low in raw material price, preparation process are simple, before industrial application
Scape is wide.
(5) for the present invention while sodium alginate and calcium nitrate are crosslinked, magnesium monohydrogen phosphate is reacted with calcium ion generates hydroxyl calcium phosphate
And calcium phosphate particles, it is evenly distributed in sodium alginate/calcium ion reticular structure, interface cohesion is secured, enhances hydrogel
Mechanical stability；And attapulgite is dispersed in polymerisation medium, suction of the plural gel to dyestuff is improved using its porosity characteristic
Attached capacity, in detail as shown in Figure 3.
Detailed description of the invention
Fig. 1 is the shape appearance figure of 1 gained composite hydrogel microballoon of the embodiment of the present invention；
Fig. 2 is the suction of 1 gained composite hydrogel of the embodiment of the present invention and traditional sodium alginate gel to methylene blue dye
Attached contrast curve chart；
Fig. 3 is 1 gained composite hydrogel of the embodiment of the present invention and traditional sodium alginate gel at different temperatures to methylene
The comparison diagram of the saturated extent of adsorption of base indigo plant dyestuff.
Specific embodiment
The present invention is described in further detail below in conjunction with embodiment and attached drawing:
Embodiment 1
The microballoon of the absorption dyestuff composite hydrogel, by sodium alginate, magnesium monohydrogen phosphate, aluminium oxide, attapulgite, nitric acid
Calcium, ammonium hydroxide and phosphoric acid are made；The microballoon is made of the following components: sodium alginate: 36%；Magnesium monohydrogen phosphate: 13%；Aluminium oxide:
3%；Attapulgite: 24%；Calcium nitrate: 24%；The quality accounting of the ammonium hydroxide and phosphoric acid is 1:4；For adjusting the phosphoric acid
Hydrogen magnesium and the calcium nitrate generate the mineral microparticle of hydroxyl calcium phosphate in the environment of pH=8.4；The mineral grain and described recessed
The Si-O key collective effect on convex stick soil surface strengthens the reticular structure that sodium alginate and calcium ion crosslinking are formed, to improve water-setting
The intensity of glue；The attapulgite is also known as palygorskite, is the aqueous rich magnesium aluminosilicate clays mineral for having chain layer structure, in
Portion's honeycomb structure can increase the porosity inside gel, improve the porosity of gel micro-ball, it is made to have adsorption energy to dyestuff
Power.
The method for preparing microsphere of the absorption dyestuff composite hydrogel, comprising the following steps:
1) sodium alginate aqueous solution and 0.02 gram/milli that mass concentration is 0.06 grams per milliliter are successively prepared with deionized water
The magnesium monohydrogen phosphate aqueous solution risen；
2) two kinds of solution in step 1) are mixed in equal volume, it is small with magnetic stirrer 1.5 after being warming up to 50 DEG C
When；
3) 0.5 gram of aluminium oxide is taken, is added in (2) mixed liquor that step obtains under fast stirring, it is small to continue stirring 0.5
When；
4) it takes 4 grams of attapulgites to be placed in 102 DEG C of baking ovens 2 hours dry, is then added to step 2) under fast stirring
In obtained mixed liquor, continue to quickly stir 0.5 hour later；
5) calcium nitrate aqueous solution that mass concentration is 0.04 grams per milliliter is prepared, under fast stirring obtains step 3)
Mixed liquor is added dropwise in calcium nitrate solution with syringe, and the hydrogel microsphere of formation continues stirred in calcium nitrate solution
Night.
6) by gel obtained in step 5 after the screen to filtrate, 5 times is cleaned with deionized water and is inhaled to get to high-intensitive height
The composite hydrogel microballoon of attached property, in detail as shown in Figure 1.
Embodiment 2
The microballoon of the absorption dyestuff composite hydrogel, by sodium alginate, magnesium monohydrogen phosphate, aluminium oxide, attapulgite, nitric acid
Calcium, ammonium hydroxide and phosphoric acid are made；The microballoon is made of the following components: sodium alginate: 28%；Magnesium monohydrogen phosphate: 9%: aluminium oxide:
3%；Attapulgite: 46%；Calcium nitrate: 14%；The quality accounting of the ammonium hydroxide and phosphoric acid is 1:4；For adjusting the phosphoric acid
Hydrogen magnesium and the calcium nitrate generate the mineral microparticle of hydroxyl calcium phosphate in the environment of pH=8.4；The mineral grain and described recessed
The Si-O key collective effect on convex stick soil surface strengthens the reticular structure that sodium alginate and calcium ion crosslinking are formed, to improve water-setting
The intensity of glue；The attapulgite is also known as palygorskite, is the aqueous rich magnesium aluminosilicate clays mineral for having chain layer structure, in
Portion's honeycomb structure can increase the porosity inside gel, improve the porosity of gel micro-ball, it is made to have adsorption energy to dyestuff
Power.
The method for preparing microsphere of the absorption dyestuff composite hydrogel, comprising the following steps:
1) successively prepared with deionized water mass concentration be 0.03 grams per milliliter sodium alginate aqueous solution and 4% phosphoric acid
Hydrogen magnesium aqueous solution；
2) by two kinds of solution in step 1), 4:1 is mixed by volume, after being warming up to 50 DEG C, uses magnetic stirrer
1.5 hour；
3) 0.7 gram of aluminium oxide is taken, is added in (2) mixed liquor that step obtains under fast stirring, it is small to continue stirring 0.5
When；
4) it takes 10 grams of attapulgites to be placed in 102 DEG C of baking ovens 2 hours dry, is then added to step 5) under fast stirring
In obtained mixed liquor, continue to quickly stir 0.5 hour later；
5) calcium nitrate aqueous solution that mass concentration is 0.03 grams per milliliter is prepared, under fast stirring obtains step 4)
Mixed liquor is added dropwise in calcium nitrate solution with syringe, and the hydrogel microsphere of formation continues stirred in calcium nitrate solution
Night.
6) by gel obtained in step 4 after the screen to filtrate, 5 times is cleaned with deionized water and is inhaled to get to high-intensitive height
The composite hydrogel microballoon of attached property, in detail as shown in Figure 1.
Embodiment 3
The microballoon of the absorption dyestuff composite hydrogel, by sodium alginate, magnesium monohydrogen phosphate, aluminium oxide, attapulgite, nitric acid
Calcium, ammonium hydroxide and phosphoric acid are made；The microballoon is made of the following components: sodium alginate: 18%；Magnesium monohydrogen phosphate: 14%: aluminium oxide:
1%；Attapulgite: 56%；Calcium nitrate: 11%；The quality accounting of the ammonium hydroxide and phosphoric acid is 1:4；For adjusting the phosphoric acid
Hydrogen magnesium and the calcium nitrate generate the mineral microparticle of hydroxyl calcium phosphate in the environment of pH=8.4；The mineral grain and described recessed
The Si-O key collective effect on convex stick soil surface strengthens the reticular structure that sodium alginate and calcium ion crosslinking are formed, to improve water-setting
The intensity of glue；The attapulgite is also known as palygorskite, is the aqueous rich magnesium aluminosilicate clays mineral for having chain layer structure, in
Portion's honeycomb structure can increase the porosity inside gel, improve the porosity of gel micro-ball, it is made to have adsorption energy to dyestuff
Power.
The method for preparing microsphere of the absorption dyestuff composite hydrogel, comprising the following steps:
1) successively prepared with deionized water mass concentration be 0.08 grams per milliliter sodium alginate aqueous solution and 1% phosphoric acid
Hydrogen magnesium aqueous solution；
2) by two kinds of solution in step 1), 1:6 is mixed by volume, after being warming up to 50 DEG C, uses magnetic stirrer
1.5 hour；
3) 0.5 gram of aluminium oxide is taken, is added in the mixed liquor that step 2) obtains under fast stirring, it is small to continue stirring 0.5
When；
4) it takes 25 grams of attapulgites to be placed in 102 DEG C of baking ovens 2 hours dry, is then added to step 3) under fast stirring
In obtained mixed liquor, continue to quickly stir 0.5 hour later；
5) calcium nitrate aqueous solution that mass concentration is 0.05 grams per milliliter is prepared, under fast stirring obtains step 4)
Mixed liquor is added dropwise in calcium nitrate solution with syringe, and the hydrogel microsphere of formation continues stirred in calcium nitrate solution
Night.
6) by gel obtained in step 5) after the screen to filtrate, 5 times is cleaned with deionized water and is inhaled to get to high-intensitive height
The composite hydrogel microballoon of attached property, in detail as shown in Figure 1.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the invention as claimed with
Modification, should all belong to the covering scope of the claims in the present invention.
Claims (7)
1. a kind of microballoon for adsorbing dyestuff composite hydrogel, which is characterized in that by sodium alginate, magnesium monohydrogen phosphate, aluminium oxide, bumps
Stick soil, calcium nitrate, ammonium hydroxide and phosphoric acid are made；Wherein magnesium monohydrogen phosphate and calcium nitrate generate hydroxyl calcium phosphate under pH=8.4 environment
Mineral microparticle；The Si-O key collective effect of the mineral grain and the attapulgite's surface strengthens sodium alginate and calcium ion
The reticular structure being cross-linked to form, to improve the intensity of hydrogel；The attapulgite is also known as palygorskite, is tool chain layer structure
Aqueous rich magnesium aluminosilicate clays mineral, internal cellular shape structure can increase the porosity inside gel, have it to dyestuff
There is adsorption capacity.
2. adsorbing the microballoon of dyestuff composite hydrogel according to claim 1, it is characterised in that the matter of the ammonium hydroxide and phosphoric acid
Amount accounting is 1:4.
3. adsorbing the microballoon of dyestuff composite hydrogel according to claim 1, which is characterized in that the microballoon is by following component
Composition:
18%~36% magnesium monohydrogen phosphate of sodium alginate, 5%~14% aluminium oxide 1%~3%
24%~58% calcium nitrate 11%~24% of attapulgite.
4. a kind of method for preparing microsphere for adsorbing dyestuff composite hydrogel, which comprises the following steps:
(1) the sodium alginate soln and 0.01~0.04 that mass concentration is 0.03~0.08 grams per milliliter is successively prepared with deionized water
The magnesium monohydrogen phosphate solution of grams per milliliter；
By step (1) in two kinds of solution mix, after being warming up to 50 DEG C, with magnetic stirrer 1.5 hours；
(3) 0.5~1 gram of aluminium oxide is taken, is added in (2) mixed liquor that step obtains under fast stirring, it is small to continue stirring 0.5
When；
(4) 1~25 gram of attapulgite is placed in 102 DEG C of baking ovens 2 hours dry, is then added to step under fast stirring and is (2) obtained
To mixed liquor in, continue to later quickly stir 0.5 hour；
(5) the calcium nitrate solution that mass concentration is 0.02~0.06 grams per milliliter is prepared, under fast stirring (4) obtains step
Mixed liquor is added dropwise in calcium nitrate solution with syringe, and the hydrogel microsphere of formation continues stirred in calcium nitrate solution
Night；
By step (5) obtained in gel after the screen to filtrate, clean 5 times with deionized water to get composite hydrogel microballoon.
5. adsorbing the method for preparing microsphere of dyestuff composite hydrogel according to claim 4, it is characterised in that, the concave convex rod
Soil is also known as palygorskite, is the aqueous rich magnesium aluminosilicate clays mineral for having chain layer structure, and internal cellular shape structure can increase
Porosity inside gel improves the porosity of gel micro-ball, it is made to have adsorption capacity to dyestuff.
6. according to claim 4 adsorb dyestuff composite hydrogel method for preparing microsphere, it is characterised in that, manufacture it is compound
Hydrogel microsphere is for adsorbing dye ions.
7. adsorbing the method for preparing microsphere of dyestuff composite hydrogel according to claim 4, it is characterised in that, the aluminium oxide
With hydrophobicity, and absorption dyestuff can be assisted by cationic bridging action.
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| CN111286233A (en) * | 2020-01-16 | 2020-06-16 | 浙江工业大学 | Preparation method of fluorescent pigment gel |
| CN115672293A (en) * | 2022-10-24 | 2023-02-03 | 中南大学 | Sodium alginate-loaded clay mineral gel microsphere, preparation method thereof and application of sodium alginate-loaded clay mineral gel microsphere as rare earth ion adsorption material |
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| CN103690994B (en) * | 2013-12-13 | 2015-05-27 | 苏州大学 | Alginate/hydroxyapatite hydrogel material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111286233A (en) * | 2020-01-16 | 2020-06-16 | 浙江工业大学 | Preparation method of fluorescent pigment gel |
| CN115672293A (en) * | 2022-10-24 | 2023-02-03 | 中南大学 | Sodium alginate-loaded clay mineral gel microsphere, preparation method thereof and application of sodium alginate-loaded clay mineral gel microsphere as rare earth ion adsorption material |
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| CN111036179A (en) | 2020-04-21 |
| CN111036179B (en) | 2021-02-09 |
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