CN106215888A - A kind of method forming heavy metal nano adsorber with anti-phase miniemulsion - Google Patents
A kind of method forming heavy metal nano adsorber with anti-phase miniemulsion Download PDFInfo
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- CN106215888A CN106215888A CN201610602719.1A CN201610602719A CN106215888A CN 106215888 A CN106215888 A CN 106215888A CN 201610602719 A CN201610602719 A CN 201610602719A CN 106215888 A CN106215888 A CN 106215888A
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- polysaccharide
- aldehyde ketone
- heavy metal
- deionized water
- ketone imines
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- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 16
- -1 aldehyde ketone imines polysaccharide Chemical class 0.000 claims abstract description 54
- 229920001282 polysaccharide Polymers 0.000 claims abstract description 50
- 239000005017 polysaccharide Substances 0.000 claims abstract description 50
- 239000003463 adsorbent Substances 0.000 claims abstract description 37
- 238000001179 sorption measurement Methods 0.000 claims abstract description 16
- 238000010521 absorption reaction Methods 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 49
- 239000008367 deionised water Substances 0.000 claims description 22
- 229910021641 deionized water Inorganic materials 0.000 claims description 22
- 239000002904 solvent Substances 0.000 claims description 14
- 239000010865 sewage Substances 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 229910001431 copper ion Inorganic materials 0.000 claims description 7
- BQPIGGFYSBELGY-UHFFFAOYSA-N mercury(2+) Chemical compound [Hg+2] BQPIGGFYSBELGY-UHFFFAOYSA-N 0.000 claims description 7
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 6
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 6
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 6
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 6
- 239000003431 cross linking reagent Substances 0.000 claims description 6
- 230000007935 neutral effect Effects 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 5
- 239000003999 initiator Substances 0.000 claims description 5
- 239000004816 latex Substances 0.000 claims description 5
- 229920000126 latex Polymers 0.000 claims description 5
- RVPVRDXYQKGNMQ-UHFFFAOYSA-N lead(2+) Chemical compound [Pb+2] RVPVRDXYQKGNMQ-UHFFFAOYSA-N 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical group [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 5
- 235000019394 potassium persulphate Nutrition 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000004945 emulsification Methods 0.000 claims description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 4
- 239000003350 kerosene Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 229940057995 liquid paraffin Drugs 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 229920002545 silicone oil Polymers 0.000 claims description 2
- 238000007720 emulsion polymerization reaction Methods 0.000 abstract description 10
- 150000002500 ions Chemical class 0.000 abstract description 6
- 239000003381 stabilizer Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 238000012986 modification Methods 0.000 abstract description 3
- 229920000642 polymer Polymers 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000002194 synthesizing effect Effects 0.000 abstract description 2
- 229920002101 Chitin Polymers 0.000 description 5
- 229920001661 Chitosan Polymers 0.000 description 4
- 150000004676 glycans Chemical class 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 150000001299 aldehydes Chemical class 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 2
- 150000003926 acrylamides Chemical class 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 239000000693 micelle Substances 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- ZNZYKNKBJPZETN-WELNAUFTSA-N Dialdehyde 11678 Chemical compound N1C2=CC=CC=C2C2=C1[C@H](C[C@H](/C(=C/O)C(=O)OC)[C@@H](C=C)C=O)NCC2 ZNZYKNKBJPZETN-WELNAUFTSA-N 0.000 description 1
- 229920001503 Glucan Polymers 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000002262 Schiff base Substances 0.000 description 1
- 150000004753 Schiff bases Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000007957 coemulsifier Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000004530 micro-emulsion Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- 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
- B01J20/26—Synthetic macromolecular compounds
-
- 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
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
- B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
A kind of method forming heavy metal nano adsorber with anti-phase miniemulsion of the present invention, relates to the fields such as Polymer Synthesizing, bio-modification macromolecular material and environmental conservation.The present invention uses with aldehyde ketone imines polysaccharide as base material, forms aldehyde ketone imines polysaccharide loaded nano adsorbent by the method for mini-emulsion polymerization, it is possible to Reusability Adsorption of Heavy Metal Ions.Aldehyde ketone imines polysaccharide of the present invention is as the co-stabilizer/stabilizer of mini-emulsion polymerization, and miniemulsion particle diameter is up to 70 nanometers, even particle size distribution；Directly use aldehyde ketone imines polysaccharide loaded nano adsorbent after can using moistening, separate after reunion, easy to use；Can use Reusability adsorbent, after absorption, heavy metal remnants is few.
Description
Technical field:
The present invention relates to aldehyde ketone imines polysaccharide as co-stabilizer/stabilizer, be successfully made anti-phase mini-emulsion polymerization；And
Heavy metal solution adsorbs.The method relates to the fields such as Polymer Synthesizing, bio-modification macromolecular material and environmental conservation.
Background technology:
In nature, pollute especially heavy metal owing to existing environment caused serious destruction.Heavy metal pollution by
In can not natural degradation, and circulated between soil and organism by the mode such as the surface water, subsoil water, outstanding to ecological disruption
It is serious.The most how enriching heavy metal ion, reuses and becomes significant research emphasis.
Chitosan is the acetylizad product of chitin, and chitin has another name called chitin, chitin, chitin, is a kind of natural
Aminopolysaccharide polymer substance, molecular formula is (C8H13NO5) N, molecular weight is about 1,000,000, and chemical name is (Isosorbide-5-Nitrae) poly-2-
Acetylaminohydroxyphenylarsonic acid 2-deoxidation-D-glucosan, has many special physicochemical properties.Chitosan structure has amino and hydroxyl
The groups such as base have stronger combination to metal ion, it is particularly possible to reuse and have biological degradation function.Common
The feature that chitosan owing to its mechanical strength is the highest, easily dissolves in acid medium makes it limited in Adsorption of Heavy Metals effect.
Therefore, first pass through chitosan and aldehyde ketone carries out schiff base reaction modification, generate corresponding aldehyde ketone imines polysaccharide.Profit
Reacting with this, can protect free amino, introduce other group on hydroxyl, this analog derivative is to some metal ion such as copper
Ion, mercury ion and lead ion have special sequestering power；Secondly, by the method for mini-emulsion polymerization, many to aldehyde ketone imines
Sugar carries out partially grafted and micro-crosslinking, and it is supported to carry out aldehyde ketone imines polysaccharide, the other adsorbent of synthesis nano, owing to size is imitated
Should, it being allowed to that there is great adsorption area, the most therefore adsorbance promotes；And method can be obtained by changing pH value, repeat to make
With.
Mini-emulsion polymerization is introduction co-emulsifier in system with the difference of general emulsion polymerization, and have employed microemulsion chemical industry
Skill, so makes the biggest monomer droplet be dispersed into less Submicron monomer droplet.The emulsifying agent existed with micelle form
Transferring on Submicron monomer droplet surface, micelle quantity reduces, and therefore Submicron monomer droplet just becomes the main position causing nucleation
Put.By the method for mini-emulsion polymerization, the latex particle with nanostructured can be synthesized.Use anti-phase mini-emulsion polymerization,
To particle diameter than more uniform Nano grade water based emulsion particle.
Summary of the invention:
It is an object of the invention to stablize miniemulsion by aldehyde ketone imines polysaccharide and be polymerized, by making it to apply after separating
In terms of heavy metal adsorption.Carry out as steps described below:
(1) aldehyde ketone imines polysaccharide is stablized miniemulsion drop and forms latex particle:
Under room temperature, being added in certain acid deionized water by aldehyde ketone imines polysaccharide, gentle agitation is to being completely dissolved；Add
Quantitative acrylamide and cross-linking agent, form water solution system and stir 15 minutes；At room temperature, quantitative aqueous slkali regulation is added
Water solution system is to alkalescence, and stirs 15 minutes pre-emulsifications, ultrasonic cell disrupte machine with magnetic stirrer after oil-based solvent mixing
With 90% output ultrasonic 5 minutes (frozen water cooling).Being added in the reactor after changing nitrogen by miniemulsion after ultrasonic, addition is drawn
Send out after agent heats up and cause polymerization, react 5 hours and terminate reaction, use the method for oil-based solvent and water azeotropic remove oil-based solvent with
Water, obtains aldehyde ketone imines polysaccharide loaded nano adsorbent.
(2) heavy metal adsorption of aldehyde ketone imines polysaccharide loaded nano adsorbent and reusing:
Be directly placed into after aldehyde ketone imines polysaccharide loaded nano adsorbent deionized water moistening made above containing or
Mixing is containing copper ion, mercury ion and the sewage of lead ion, and after absorption, the adsorbent of heavy metal can produce reunion, used aldehyde
Ketimide polysaccharide loaded nano adsorbent uses acid water washing, the neutral deionized water wash of rear employing, again adsorbs a huge sum of money
Belong to ion.
In step (1), the mass ratio of aldehyde ketone imines polysaccharide consumption and deionized water consumption is 5-10:100, and pH value is 4；Its
Acrylamide consumption and deionized water quality amount ratio that middle step (1) adds are 5-10:100, after adding alkali regulation pH value are
9；
Wherein in step (1), cross-linking agent is acrylic acid glycol ester, and consumption and acrylamide quality amount ratio are 0.1-
0.5:100:
Wherein step (1) medium oil solvent be a kind of in hexamethylene, normal heptane, kerosene, liquid paraffin or phenyl silicone oil or
Several, consumption and deionized water quality are than for 400:100；
Wherein in step (1), initiator is potassium peroxydisulfate and benzoyl peroxide or azo-bis-isobutyl cyanide composition, persulfuric acid
The consumption of potassium: benzoyl peroxide or azo-bis-isobutyl cyanide: deionized water quality amount ratio is 1:1:1000；
Wherein in step (1), polymeric reaction temperature is 80 DEG C.
The acid water washing that in step (2), used aldehyde ketone imines polysaccharide loaded nano adsorbent uses pH value to be 2；
The neutral deionized water wash pH value of rear employing is 6；Five Adsorption of Heavy Metals repeatedly.
It is an advantage of the current invention that the present invention uses with aldehyde ketone imines polysaccharide as base material, by the method shape of mini-emulsion polymerization
Become aldehyde ketone imines polysaccharide loaded nano adsorbent, it is possible to Reusability Adsorption of Heavy Metal Ions, have the following advantages 1, aldehyde
Ketimide polysaccharide is as the co-stabilizer/stabilizer of mini-emulsion polymerization, and miniemulsion particle diameter is up to 70 nanometers, even particle size distribution；
2, directly use aldehyde ketone imines polysaccharide loaded nano adsorbent after moistening can be used, separate after reunion, easy to use；3, may be used
To use Reusability adsorbent, after absorption, heavy metal remnants is few.
Detailed description of the invention
Below in conjunction with example, the present invention is described in further detail.
Embodiment 1
(1) aldehyde ketone imines polysaccharide is stablized miniemulsion drop and forms latex particle:
Under room temperature, being added in 100 grams of deionized waters that pH value is 4 by 5 grams of aldehyde ketone imines polysaccharide, gentle agitation is to the most molten
Solve；Add 5 grams of acrylamides and 0.005 gram of acrylic acid glycol ester cross-linking agent, form water solution system and stir 15 minutes；In room
Under temperature, adding quantitative aqueous slkali regulation water solution system to pH value is 9, and uses magnetic agitation after 400 grams of kerosene solvent mixing
Machine 15 minutes pre-emulsifications of stirring, ultrasonic cell disrupte machine 90% power ultrasonic 5 minutes (frozen water cooling).By the miniemulsion after ultrasonic
Add in the reactor after changing nitrogen, add 0.1 gram of potassium peroxydisulfate and 0.1 gram of benzoyl peroxide initiator is warming up to 80 DEG C, draw
Send out polymerization, react 5 hours and terminate reaction, use the method for oil-based solvent and water azeotropic to remove oil-based solvent and water, obtain aldehyde ketone
Imines polysaccharide loaded nano adsorbent.
(2) heavy metal adsorption of aldehyde ketone imines polysaccharide loaded nano adsorbent and reusing:
It is respectively put into 10,000 after 1 gram of aldehyde ketone imines polysaccharide loaded nano adsorbent deionized water moistening made above
(concentration is respectively 9.0 mg/kg, 10.0 mg/kg and 12.8 to sewage gram containing copper ion, mercury ion and lead ion
Mg/kg)；In combined sewage copper ion, mercury ion and plumbum ion concentration be (6.0 mg/kg, 7.0 mg/kg and
5.2 mg/kg).After absorption, the adsorbent of heavy metal can produce reunion, detects after filtering aggregate and being washed with deionized
The heavy metal concentration of sewage, calculates aldehyde ketone imines polysaccharide loaded nano adsorbent amount.
Used aldehyde ketone imines polysaccharide loaded nano adsorbent uses pH value to be 2 acid water washings, uses neutrality afterwards
Deionized water wash, the neutral deionized water wash pH value of rear employing is 6, and Adsorption of Heavy Metal Ions again reuses five suctions
After attached heavy metal containing sewage, calculate the change of aldehyde ketone imines polysaccharide loaded nano adsorbent amount.Table one is example one aldehyde ketone
Imines polysaccharide loaded nano adsorbent amount and change:
Table one example one aldehyde ketone imines polysaccharide loaded nano adsorbent amount and change
1 be the 5th time absorption after sewage heavy metal residual volume be calculated as through absorption after residual heavy metal than upper absorption before a huge sum of money
Belong to absolute content；2 is maximum that saturated extent of adsorption is unit weight aldehyde ketone imines polysaccharide loaded nano ABSORBENTS ABSORPTION metal
Absorbability.
Embodiment 2
(1) aldehyde ketone imines polysaccharide is stablized miniemulsion drop and forms latex particle:
Under room temperature, being added in 100 grams of deionized waters that pH value is 4 by 10 grams of aldehyde ketone imines polysaccharide, gentle agitation is to completely
Dissolve；Add 10 grams of acrylamides and 0.05 gram of acrylic acid glycol ester cross-linking agent, form water solution system and stir 15 minutes；?
Under room temperature, adding quantitative aqueous slkali regulation water solution system to pH value is 9, and stirs with magnetic force after 400 grams of kerosene solvent mixing
Mix machine 15 minutes pre-emulsifications of stirring, ultrasonic cell disrupte machine 90% power ultrasonic 5 minutes (frozen water cooling).By the thin breast after ultrasonic
Liquid adds in the reactor after changing nitrogen, adds 0.1 gram of potassium peroxydisulfate and 0.1 gram of benzoyl peroxide initiator is warming up to 80 DEG C,
Cause polymerization, react 5 hours and terminate reaction, use the method for oil-based solvent and water azeotropic to remove oil-based solvent and water, obtain aldehyde
Ketimide polysaccharide loaded nano adsorbent.
(2) heavy metal adsorption of aldehyde ketone imines polysaccharide loaded nano adsorbent and reusing:
It is respectively put into 10,000 after 1 gram of aldehyde ketone imines polysaccharide loaded nano adsorbent deionized water moistening made above
(concentration is respectively 9.0 mg/kg, 10.0 mg/kg and 12.8 to sewage gram containing copper ion, mercury ion and lead ion
Mg/kg)；In combined sewage copper ion, mercury ion and plumbum ion concentration be (6.0 mg/kg, 7.0 mg/kg and
5.2 mg/kg).After absorption, the adsorbent of heavy metal can produce reunion, detects after filtering aggregate and being washed with deionized
The heavy metal concentration of sewage, calculates aldehyde ketone imines polysaccharide loaded nano adsorbent amount.
Used aldehyde ketone imines polysaccharide loaded nano adsorbent uses pH value to be 2 acid water washings, uses neutrality afterwards
Deionized water wash, the neutral deionized water wash pH value of rear employing is 6, and Adsorption of Heavy Metal Ions again reuses five suctions
After attached heavy metal containing sewage, calculate the change of aldehyde ketone imines polysaccharide loaded nano adsorbent amount.Table two is example two aldehyde ketone
Imines polysaccharide loaded nano adsorbent amount and change
Table two example dialdehyde ketimide polysaccharide loaded nano adsorbent amount and change
1 be the 5th time absorption after sewage heavy metal residual volume be calculated as through absorption after residual heavy metal than upper absorption before a huge sum of money
Belong to absolute content；2 for suction that saturated extent of adsorption is unit weight aldehyde ketone imines polysaccharide loaded nano ABSORBENTS ABSORPTION metal
Big attached ability.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and apply the present invention.
These embodiments obviously easily can be made various amendment by those skilled in the art, and General Principle described herein
It is applied in other embodiments without through performing creative labour.Therefore, the invention is not restricted to embodiment here, this area
Technical staff is according to the announcement of the present invention, and the amendment made for the present invention all should be within protection scope of the present invention.
Claims (3)
1. the method forming heavy metal nano adsorber with anti-phase miniemulsion, it is characterised in that carry out as steps described below:
(1) aldehyde ketone imines polysaccharide is stablized miniemulsion drop and forms latex particle:
Under room temperature, being added in certain acid deionized water by aldehyde ketone imines polysaccharide, gentle agitation is to being completely dissolved；Add quantitatively
Acrylamide and cross-linking agent, formed water solution system stir 15 minutes；At room temperature, quantitative aqueous slkali regulation is added water-soluble
Liquid system is to alkalescence, and stirs 15 minutes pre-emulsifications with magnetic stirrer after oil-based solvent mixing, and ultrasonic cell disrupte machine is with 90%
Output ultrasonic 5 minutes (frozen water cooling)；Miniemulsion after ultrasonic is added in the reactor after changing nitrogen, adds initiator liter
Cause polymerization after temperature, react 5 hours and terminate reaction, use the method for oil-based solvent and water azeotropic to remove oil-based solvent and water,
To aldehyde ketone imines polysaccharide loaded nano adsorbent；
(2) heavy metal adsorption of aldehyde ketone imines polysaccharide loaded nano adsorbent and reusing:
It is directly placed into after aldehyde ketone imines polysaccharide loaded nano adsorbent deionized water moistening made above containing or mixes
Containing the sewage of copper ion, mercury ion and lead ion, after absorption, the adsorbent of heavy metal can produce reunion, and used aldehyde ketone is sub-
Amine polysaccharide loaded nano adsorbent uses acid water washing, rear uses neutral deionized water wash, again Adsorption of Heavy Metals from
Son.
A kind of method forming heavy metal nano adsorber with anti-phase miniemulsion the most according to claim 1, its feature exists
In step (1), the mass ratio of aldehyde ketone imines polysaccharide consumption and deionized water consumption is 5-10:100, and pH value is 4；Wherein step
(1) the acrylamide consumption and the deionized water quality amount ratio that add are 5-10:100, are 9 after adding alkali regulation pH value；
Wherein in step (1), cross-linking agent is acrylic acid glycol ester, and consumption and acrylamide quality amount ratio are 0.1-0.5:
100:
Wherein step (1) medium oil solvent is one or more in hexamethylene, normal heptane, kerosene, liquid paraffin or phenyl silicone oil,
Consumption and deionized water quality are than for 400:100；
Wherein in step (1), initiator is potassium peroxydisulfate and benzoyl peroxide or azo-bis-isobutyl cyanide composition, potassium peroxydisulfate
Consumption: benzoyl peroxide or azo-bis-isobutyl cyanide: deionized water quality amount ratio is 1:1:1000；
Wherein in step (1), polymeric reaction temperature is 80 DEG C.
A kind of method forming heavy metal nano adsorber with anti-phase miniemulsion the most according to claim 1, its feature exists
The acid water washing that used aldehyde ketone imines polysaccharide loaded nano adsorbent uses pH value to be 2 in step (2)；Rear employing
Neutral deionized water wash pH value is 6；Five Adsorption of Heavy Metals repeatedly.
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| CN201610602719.1A CN106215888B (en) | 2016-07-27 | 2016-07-27 | A method of heavy metal nano adsorber is formed with reverse phase miniemulsion |
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| CN201610602719.1A CN106215888B (en) | 2016-07-27 | 2016-07-27 | A method of heavy metal nano adsorber is formed with reverse phase miniemulsion |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008057163A3 (en) * | 2006-10-09 | 2008-07-24 | Univ Carnegie Mellon | Preparation of functional gel particles with a dual crosslink network |
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