CN106955675A - A kind of magnetic aqueous solution and its preparation method and application - Google Patents
A kind of magnetic aqueous solution and its preparation method and application Download PDFInfo
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- CN106955675A CN106955675A CN201710250001.5A CN201710250001A CN106955675A CN 106955675 A CN106955675 A CN 106955675A CN 201710250001 A CN201710250001 A CN 201710250001A CN 106955675 A CN106955675 A CN 106955675A
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- aqueous solution
- sodium carboxymethylcellulose
- magnetic
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- fecl
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- 239000007864 aqueous solution Substances 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 38
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 51
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims abstract description 51
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims abstract description 51
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000002105 nanoparticle Substances 0.000 claims abstract description 26
- 239000000243 solution Substances 0.000 claims abstract description 23
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 16
- 239000008367 deionised water Substances 0.000 claims abstract description 11
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 11
- 229910021577 Iron(II) chloride Inorganic materials 0.000 claims abstract description 10
- 238000010792 warming Methods 0.000 claims abstract description 10
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 239000003292 glue Substances 0.000 claims description 13
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 9
- 229910052708 sodium Inorganic materials 0.000 claims description 9
- 239000011734 sodium Substances 0.000 claims description 9
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000003643 water by type Substances 0.000 claims description 3
- 238000002242 deionisation method Methods 0.000 claims description 2
- 239000010865 sewage Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 8
- 238000013019 agitation Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 8
- 239000002351 wastewater Substances 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 5
- 239000006228 supernatant Substances 0.000 description 4
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 3
- -1 Fe (III) ions Chemical class 0.000 description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229960004887 ferric hydroxide Drugs 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- NQXWGWZJXJUMQB-UHFFFAOYSA-K iron trichloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].Cl[Fe+]Cl NQXWGWZJXJUMQB-UHFFFAOYSA-K 0.000 description 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
- 238000002604 ultrasonography 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
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
-
- 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
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- 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
- B01J20/28002—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 physical properties
- B01J20/28009—Magnetic properties
-
- 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
-
- 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
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/203—Iron or iron compound
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The present invention relates to a kind of magnetic aqueous solution and preparation method thereof.This method comprises the following steps：Prepare Fe3O4Nanoparticles：By FeCl3Solution and FeCl2Solution is uniformly mixed, in the basic conditions react 1~2h, separated through magnet, wash, dry after, obtain Fe3O4Nanoparticles；Prepare the gluey aqueous solution of sodium carboxymethylcellulose：Sodium carboxymethylcellulose powder is dissolved in deionized water, bath temperature is at the uniform velocity warming up to 50 DEG C and keeps 50 DEG C of constant temperature stirrings, treats after all dissolvings, obtains the gluey aqueous solution of sodium carboxymethylcellulose；Prepare the magnetic aqueous solution：By Fe3O4Nanoparticles are added in the gluey aqueous solution of described sodium carboxymethylcellulose, and stirring at normal temperature obtains the magnetic aqueous solution.Fe in the inventive method3O4Nanoparticles are dispersed in the gluey aqueous solution of the sodium carboxymethylcellulose fully dissolved, it is to avoid sodium carboxymethylcellulose occurred and do not wrapped up Fe3O4The situation of nanoparticles, causes sodium carboxymethylcellulose residual in the environment, so that Fe (III) ion can not be adsorbed fully.
Description
Technical field
The present invention relates to a kind of magnetic aqueous solution and preparation method thereof, a kind of application of the magnetic aqueous solution is further related to.
Background technology
Fe (III) ions are as a kind of heavy metal being widely present in water body, one of element necessary to be organism.Although
Country does not limit the quantity clearly it specification, but is discharged to water body rich in the exceeded waste water of Fe (III) ion and can cause the dissolving in water body
Oxygen is reduced rapidly, water body muddy, and certain harm is caused to environment.The common method containing Fe (III) ion waste water of processing at present has：
UF membrane, neutralization precipitation, biological treatment etc..UF membrane is unfavorable for promoting due to high costs.Neutralisation is by adding alkali, shape
Removed into ferric hydroxide precipitate, but iron containing sludge can be formed.Bioanalysis is, by cultivating strain, to utilize the new into generation of itself
The effect of thanking removes Fe (III) ion, but step is complicated, with high costs.
Chinese patent CN105617977A discloses a kind of sodium carboxymethylcellulose MODIFIED Fe3O4The method of nanoparticles,
But this method proposes that sodium carboxymethylcellulose powder directly is directly added into Fe3O4In nanoparticles solution, because carboxymethyl is fine
The factor influence such as the plain sodium of dimension is difficult to disperse in aqueous, mixing time is insufficient, causes blending uneven, directly affects Fe
(III) adsorbance of ion.
Therefore, it is necessary to propose effective technical scheme, solve the above problems.
The content of the invention
There is provided a kind of magnetic aqueous solution and preparation method thereof for above-mentioned the deficiencies in the prior art by the present invention.This method letter
List, mild condition, yield are high, and the product that this method is obtained is uniform, with nanometer particle size.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：
A kind of preparation method of the magnetic aqueous solution, comprises the following steps：
(1) Fe is prepared3O4Nanoparticles：By FeCl3Solution and FeCl2Solution is uniformly mixed, and is reacted in the basic conditions
1~2h, is separated through magnet, wash, dry after, obtain Fe3O4Nanoparticles；
(2) the gluey aqueous solution of sodium carboxymethylcellulose is prepared：Sodium carboxymethylcellulose powder is dissolved in deionized water,
Bath temperature is at the uniform velocity warming up to 50 DEG C and keeps 50 DEG C of constant temperature to stir 5~20h, treats after all dissolvings, obtains carboxymethyl cellulose
The gluey aqueous solution of plain sodium；
(3) the magnetic aqueous solution is prepared：By the Fe described in step (1)3O4Nanoparticles are added to the carboxylic described in step (2)
In the sodium carboxymethylcellulose pyce glue aqueous solution, stirring at normal temperature obtains the magnetic aqueous solution.
Further, step (2) is described is dissolved in sodium carboxymethylcellulose powder in deionized water, is specially：30
Sodium carboxymethylcellulose powder is dissolved in deionized water in batches in~120min.
Further, step (2) is described is dissolved in sodium carboxymethylcellulose powder in deionization, is specially：By carboxylic first
Base sodium cellulosate powder is uniformly divided into five batches, is uniformly added at a slow speed in 100g deionized waters every 10min.
Further, the sodium carboxymethylcellulose powder and the mass ratio of deionized water are 1:100-2:100.
Further, the FeCl3Concentration of polymer solution is 0.2-0.3g/mL, the FeCl2Concentration of polymer solution is
0.05-0.1g/mL, the FeCl3FeCl in solution3With the FeCl2FeCl in solution2Mol ratio be 1:1-2:1.
Further, the Fe3O4The volume of the quality of nanoparticles and the gluey aqueous solution of the sodium carboxymethylcellulose
Than for 1g:300mL-1g:2800mL.
The present invention also provides the magnetic aqueous solution that a kind of utilization above method is prepared.
The present invention also provides a kind of application of above-mentioned magnetic aqueous solution in sewage.
Beneficial effect：Fe in the inventive method3O4Nanoparticles are dispersed in the carboxymethyl cellulose fully dissolved
In the sodium glue aqueous solution, it is to avoid sodium carboxymethylcellulose occur and do not wrap up Fe3O4The situation of nanoparticles, causes carboxymethyl fine
The plain sodium of dimension is remained in the environment, so that Fe (III) ion can not be adsorbed fully.
Embodiment
The present invention relates to a kind of preparation method of the magnetic aqueous solution, FeCl is prepared first3Solution and FeCl2Solution, Zhi Hou
Reaction obtains Fe under alkalescence condition3O4Nanoparticles, finally by the gluey aqueous solution of sodium carboxymethylcellulose and Fe3O4Nanometer
Grain thing reaction, obtains the well mixed magnetic aqueous solution of the invention.The magnetic aqueous solution and Fe (III) ion in waste water are anti-
Rapid afterwards it should precipitate, additional magnet is to separate.Reactions steps of the present invention are simple, mild condition, yield are high, it is to avoid secondary dirt
The hidden danger of dye, is conducive to industrial production, can be used as a kind of novel solutions of Fe (III) ion in Adsorption waste water.
Wherein, the preparation method of the gluey aqueous solution of sodium carboxymethylcellulose is important for the magnetic aqueous solution of the present invention
's.Fe in the inventive method3O4Nanoparticles are dispersed in the gluey aqueous solution of the sodium carboxymethylcellulose fully dissolved
In, it is to avoid there is sodium carboxymethylcellulose and do not wrap up Fe3O4The situation of nanoparticles, causes sodium carboxymethylcellulose to remain in
In environment, so that Fe (III) ion can not be adsorbed fully.Sodium carboxymethylcellulose glue the aqueous solution preparation method be specially：Will
Sodium carboxymethylcellulose powder is uniformly divided into 3-5 batches, is uniformly added at a slow speed in 100g deionized waters every 10min, water-bath temperature
Degree is at the uniform velocity warming up to 50 DEG C from 25 DEG C and maintains 50 DEG C of magnetic agitation 18h, and wherein magnetic agitation is to carboxymethyl cellulose of the present invention
The preparation of the gluey aqueous solution of plain sodium is the gluey aqueous solution of sodium carboxymethylcellulose that is important, fully being dissolved.
Embodiment 1
By 27.03g FeCl3.6H2O is dissolved in 100mL and temperature is in 0 DEG C of deionized water, under inert gas shielding
Ultrasonic 20min, is made FeCl3Solution；By 9.94g FeCl2·4H2O is dissolved in 100mL and temperature in 0 DEG C of deionized water,
Ultrasound 20min, is made FeCl under inert gas shielding2Solution；By foregoing FeCl3Solution and FeCl2Solution is uniformly mixed, and is used
The pH of mixed solution is adjusted to 9.0, stirring at normal temperature 1.5h by 2mol/L ammonia spirits, uses magnet separation of solid and liquid, and uses clear water respectively
Flush three times, be finally dried to obtain Fe3O4Nanoparticles；
1.5g sodium carboxymethylcelluloses powder is uniformly divided into three parts, uniformly 100g is added in three times at a slow speed every 10min
In clear water, bath temperature is at the uniform velocity warming up to 50 DEG C from 25 DEG C and maintains 50 DEG C of magnetic agitation 18h, obtains sodium carboxymethylcellulose
The gluey aqueous solution；The magnetic agitation is at the uniform velocity stirred for magnetic rotor with 300rpm.
By 0.3g Fe obtained above3O4Nanoparticles are at the uniform velocity added in the gluey aqueous solution of sodium carboxymethylcellulose, often
Temperature stirring 2h, Fe3O4Carboxyl on the iron ion and sodium carboxymethylcellulose on nanoparticles surface produces electrostatic interaction, makes
Fe3O4In the fully dispersed gluey aqueous solution to sodium carboxymethylcellulose of nanoparticles, the magnetic aqueous solution of black is obtained.
Embodiment 2
Embodiment 2 is identical with the preparation method of embodiment 1.It the difference is that only, sodium carboxymethylcellulose glue is water-soluble
The preparation temperature of liquid is：Water-bath maintains 0 DEG C of magnetic agitation 18h.
Embodiment 3
Embodiment 3 is identical with the preparation method of embodiment 1.It the difference is that only, sodium carboxymethylcellulose glue is water-soluble
The preparation temperature of liquid is：Bath temperature is at the uniform velocity warming up to 10 DEG C from 0 DEG C and maintains 10 DEG C of magnetic agitation 18h.
Embodiment 4
Embodiment 4 is identical with the preparation method of embodiment 1.It the difference is that only, sodium carboxymethylcellulose glue is water-soluble
The preparation temperature of liquid is：Bath temperature is at the uniform velocity warming up to 25 DEG C from 0 DEG C and maintains 25 DEG C of magnetic agitation 18h.
Embodiment 5
Embodiment 5 is identical with the preparation method of embodiment 1.It the difference is that only, sodium carboxymethylcellulose glue is water-soluble
The preparation temperature of liquid is：Bath temperature maintains 25 DEG C of magnetic agitation 18h.
Embodiment 6
Embodiment 6 is identical with the preparation method of embodiment 1.It the difference is that only, sodium carboxymethylcellulose glue is water-soluble
The preparation temperature of liquid is：Bath temperature is at the uniform velocity warming up to 35 DEG C from 25 DEG C and maintains 35 DEG C of magnetic agitation 18h.
Embodiment 7
Embodiment 7 is identical with the preparation method of embodiment 1.It the difference is that only, sodium carboxymethylcellulose glue is water-soluble
The preparation temperature of liquid is：50 DEG C of magnetic agitation 18h of bath temperature.
Embodiment 8
Embodiment 8 is identical with the preparation method of embodiment 1.It the difference is that only, sodium carboxymethylcellulose glue is water-soluble
The preparation temperature of liquid is：Bath temperature is at the uniform velocity warming up to 75 DEG C from 50 DEG C and maintains 75 DEG C of magnetic agitation 18h.
Embodiment 9
Embodiment 9 is identical with the preparation method of embodiment 1.It the difference is that only, sodium carboxymethylcellulose glue is water-soluble
The preparation temperature of liquid is：Bath temperature is at the uniform velocity warming up to 100 DEG C from 50 DEG C and maintains 100 DEG C of magnetic agitation 18h.
Test example 1
Take the magnetic aqueous solution 10mL that the preparation method according to embodiment 1 is obtained, be added separately to 90mL containing 10mg/L,
In 20mg/L, 50mg/L, 100mg/L, 500mg/L, 1000mg/L Fe (III) waste water, 2min is at the uniform velocity stirred, is separated with magnet
2min is stood, supernatant is obtained.
The content of Fe (III) in supernatant is tested with ICP-AOS5000 types atomic absorption instrument.Table 1 is different Fe (III) initial
Influence of the concentration to magnetic aqueous solution adsorbance of the present invention.
By Fe in the magnetic aqueous solution3O4The quality of nanoparticles is as adsorbent mass, such as by the 10mL magnetic aqueous solution
Fe3O4The quality of nanoparticles is as adsorbent mass (0.03g), and formula is as follows：
Q=(CInitial concentration-CEquilibrium concentration)×0.1/0.03
Influence of difference Fe (III) initial concentrations of table 1 to magnetic Nano material adsorption from aqueous solution amount
As shown in table 1, using the isodose magnetic aqueous solution, with the continuous increase of Fe (III) initial concentration, magnetic is water-soluble
The adsorption capacity of liquid also constantly increases.The magnetic aqueous solution high adsorption capacity prepared using the inventive method, effect is obvious.
Test example 2
The magnetic aqueous solution 10mL that the preparation method according to embodiment 1- embodiments 9 is obtained is taken, 100mL is added separately to and contains
In 900mg/L Fe (III) waste water, 2min is at the uniform velocity stirred, 2min is stood with magnet separation, obtains supernatant.Using test example 1
Fe (III) content in detection method measurement supernatant.Table 2 is the preparation temperature of the gluey aqueous solution of different sodium carboxymethylcelluloses
To the influence table of magnetic Nano material adsorption from aqueous solution amount.
The preparation temperature of the gluey aqueous solution of the different sodium carboxymethylcelluloses of table 2 is inhaled to the magnetic Nano material aqueous solution
The influence of attached amount
As seen from Table 2, said from energy-saving angle, embodiment 1 is that optimal sodium carboxymethylcellulose glue is water-soluble
The preparation temperature of liquid.When wherein temperature is less than 10, sodium carboxymethylcellulose can not fully dissolve when stirring 10h；100℃
When due to temperature it is too high, cause the degraded of part sodium carboxymethylcellulose, ultimately result in adsorbance reduction.
The present invention can be summarized with others without prejudice to the concrete form of the spirit or essential characteristics of the present invention.Therefore, nothing
By from the point of view of which point, the embodiment above of the invention can only all be considered the description of the invention and can not limit this hair
Bright, claims indicate the scope of the present invention, and above-mentioned explanation does not point out the scope of the present invention, therefore, with this
Any change in claims of invention suitable implication and scope, is all considered as being included in the claim of the present invention
In the range of book.
Claims (8)
1. a kind of preparation method of the magnetic aqueous solution, it is characterised in that comprise the following steps：
(1) Fe is prepared3O4Nanoparticles：By FeCl3Solution and FeCl2Solution is uniformly mixed, in the basic conditions react 1~
2h, is separated through magnet, wash, dry after, obtain Fe3O4Nanoparticles；
(2) the gluey aqueous solution of sodium carboxymethylcellulose is prepared：Sodium carboxymethylcellulose powder is dissolved in deionized water, water-bath
Temperature is at the uniform velocity warming up to 50 DEG C and keeps 50 DEG C of constant temperature to stir 5~20h, treats after all dissolvings, obtains sodium carboxymethylcellulose
The gluey aqueous solution；
(3) the magnetic aqueous solution is prepared：By the Fe described in step (1)3O4Nanoparticles are added to the carboxymethyl described in step (2)
In the sodium cellulosate glue aqueous solution, stirring at normal temperature obtains the magnetic aqueous solution.
2. the preparation method of the magnetic aqueous solution as claimed in claim 1, it is characterised in that step (2) is described fine by carboxymethyl
The plain sodium powder end of dimension is dissolved in deionized water, is specially：It is in batches that sodium carboxymethylcellulose powder is molten in 30~120min
Solution is in deionized water.
3. the preparation method of the magnetic aqueous solution as claimed in claim 2, it is characterised in that step (2) is described fine by carboxymethyl
The plain sodium powder end of dimension is dissolved in deionization, is specially：Sodium carboxymethylcellulose powder is uniformly divided into 3-5 batches, every 10min
Uniformly it is added at a slow speed in 100g deionized waters.
4. the preparation method of the magnetic aqueous solution as claimed in claim 3, it is characterised in that the sodium carboxymethylcellulose powder
Mass ratio with deionized water is 1:100-2:100.
5. the preparation method of the magnetic aqueous solution as claimed in claim 4, it is characterised in that the FeCl3Concentration of polymer solution is
0.2-0.3g/mL, the FeCl2Concentration of polymer solution is 0.05-0.1g/mL, the FeCl3FeCl in solution3With it is described
FeCl2FeCl in solution2Mol ratio be 1:1-2:1.
6. the preparation method of the magnetic aqueous solution as claimed in claim 5, it is characterised in that the Fe3O4The matter of nanoparticles
The volume ratio of the gluey aqueous solution of amount and the sodium carboxymethylcellulose is 1g:300mL-1g:2800mL.
7. a kind of magnetic aqueous solution, it is characterised in that the magnetic aqueous solution is according to the magnetic as described in claim any one of 1-6
The preparation method of the property aqueous solution is obtained.
8. a kind of application of magnetic aqueous solution as claimed in claim 7 in sewage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710250001.5A CN106955675B (en) | 2017-04-17 | 2017-04-17 | A kind of magnetism aqueous solution and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710250001.5A CN106955675B (en) | 2017-04-17 | 2017-04-17 | A kind of magnetism aqueous solution and its preparation method and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106955675A true CN106955675A (en) | 2017-07-18 |
| CN106955675B CN106955675B (en) | 2019-06-11 |
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| CN112892494A (en) * | 2021-02-24 | 2021-06-04 | 西安理工大学 | Preparation method of magnetically-modified ethyl cellulose adsorption material |
| CN113990644A (en) * | 2021-08-01 | 2022-01-28 | 北京工业大学 | Preparation method of micro-nano composite magnetic liquid for electromagnetic damping vibration attenuation |
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| CN113990644A (en) * | 2021-08-01 | 2022-01-28 | 北京工业大学 | Preparation method of micro-nano composite magnetic liquid for electromagnetic damping vibration attenuation |
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