CN105435745B - A kind of chitosan/oxidized graphene composite materials of Zn ferrite@and its preparation method and application - Google Patents
A kind of chitosan/oxidized graphene composite materials of Zn ferrite@and its preparation method and application Download PDFInfo
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- 229920001661 Chitosan Polymers 0.000 title claims abstract description 80
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 78
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 75
- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000006249 magnetic particle Substances 0.000 claims abstract description 15
- 239000003513 alkali Substances 0.000 claims abstract description 3
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- 239000000243 solution Substances 0.000 claims description 36
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- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- JUQPZRLQQYSMEQ-UHFFFAOYSA-N CI Basic red 9 Chemical compound [Cl-].C1=CC(N)=CC=C1C(C=1C=CC(N)=CC=1)=C1C=CC(=[NH2+])C=C1 JUQPZRLQQYSMEQ-UHFFFAOYSA-N 0.000 claims description 13
- 229940052223 basic fuchsin Drugs 0.000 claims description 13
- 239000000047 product Substances 0.000 claims description 12
- 238000001179 sorption measurement Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- 238000004821 distillation Methods 0.000 claims description 7
- 230000035484 reaction time Effects 0.000 claims description 7
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims description 6
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 6
- 239000003463 adsorbent Substances 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 4
- 239000000908 ammonium hydroxide Substances 0.000 claims description 4
- 235000019441 ethanol Nutrition 0.000 claims description 4
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- 239000003208 petroleum Substances 0.000 claims description 4
- 239000002244 precipitate Substances 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- 150000001336 alkenes Chemical class 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000011592 zinc chloride Substances 0.000 claims description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 2
- 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 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 238000004132 cross linking Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 17
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- 239000007788 liquid Substances 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000009514 concussion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
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- 239000001301 oxygen Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical compound C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 description 1
- 229920002101 Chitin Polymers 0.000 description 1
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- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 1
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- AHKUMISTYQVMAP-UHFFFAOYSA-N oxoiron;zinc Chemical compound [Zn].[Fe]=O AHKUMISTYQVMAP-UHFFFAOYSA-N 0.000 description 1
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- Compounds Of Iron (AREA)
Abstract
A kind of chitosan/oxidized graphene composite materials of Zn ferrite@and its preparation method and application, it is obtained with magnetic Zn ferrite chitosan with chitosan crosslinked by magnetic particle Zn ferrite, Zn ferrite@chitosan/oxidized graphene composite materials are made in graphene oxide layer by Zn ferrite@is chitosan loaded again, and the mass ratio of the magnetic particle Zn ferrite and the chitosan is 0.83~1.66:3, the Zn ferrite@chitosans are 0.8~1.2 with the graphene oxide mass ratio:1.Preparation process is simple, at low cost, and for the chitosan/oxidized graphene composite materials of Zn ferrite@obtained in the application for handling water neutral and alkali magenta, absorption property is good.
Description
Technical field
The present invention relates to a kind of chitosan/oxidized graphene composite materials of Zn ferrite@and its preparation method and application, belong to
In graphene composite material and Dye Adsorption technical field.
Background technology
Organic dyestuff is a kind of important chemicals, it is widely used in the fields such as rubber, varnish, pesticide and dyeing.
Nowadays, a kind of environmental pollution becomes very universal, here it is polluted caused by dyestuff.Dyeing waste water can bring very severe
Environment influences, if because of incorrect processing, pollutant can be recycled into the internal of a regional animals and plants and people with dampening, draw
The diseases such as hair mutation or cancer.Therefore, control dye discoloration is extremely urgent.People have grasped many different methods
Remove dye discoloration, including absorption method, chemocoagulation, liquid membrane separating method, electrolysis, biological decomposition method, oxidation and other
Certain methods.But absorption method is more feasible, because it is easy to operate, at low cost, efficient.To do is to find to close for we
Suitable adsorbent make a return journey water removal in dyestuff.
Chitin is the second abundant natural biological copolymer in nature, it has good film forming, bio-compatible
Property, biological degradability, simultaneously because containing abundant amino and hydroxyl, it is nontoxic, easy bonding, chemically reactive modification.Therefore, shell is more
Sugar has both good absorption property, can effectively improve the absorption of adsorbent as a kind of environmental protection, the substance harmless to the mankind
Ability and separating property.
2004, Andre Geim and the Konstantin Novoselov of Britain utilized micromechanics partition method directly by stone
Black thin slice is cut successively, and the blank of two-dimentional carbon material has been filled up in the single-layer graphene stablized, this important breakthrough, greatly
Ground enriches understanding of the people to carbon material.Fullerene, carbon nanotube, graphite can obtain stone by certain " chemistry is cut "
Black alkene, therefore, graphene are the basic structural units of former three carbon material.Graphene is rich because of its huge specific surface area, surface
Rich oxygen-containing functional group and show extremely strong adsorption capacity, itself is handling organic wastewater, a huge sum of money with its composite material
Belonging to ion etc. has huge potential using value.Currently, graphene preparation technology also continues to develop, the forerunner of graphene
The synthetic technology of body graphene oxide is also constantly reformed, greatly reinforced graphene every field application power.By graphite
Alkene (Graphene) and other materials compound can not only solve above-mentioned two problems but also can further enhance material
Allomeric function.Graphene is widely used as adsorbent due to high specific surface area, and chitosan is coated in magnetic flow
It is a kind of new method of extension chitosan function on body.Specific surface area of the chitosan as adsorbent can be improved, while also may be used
Concentration minimum when dyestuff is adsorbed to reduce.The two Material cladding can further be prevented into graphene and metallic
Reunite, both raisings material absorption property achievees the purpose that safety, cheap, environmental protection, efficiently removal organic dyestuff, realizes material
Material absorption is of great significance to the removal of organic dyestuff with difunctionalization of separation.
Invention content
The technical problem to be solved in the present invention is to provide a kind of preparation process is simple, the good zinc-iron of absorption property at low cost
Chitosan/oxidized graphene composite materials of oxysome@and its preparation method and application.
To solve the technical problem, the technical solution adopted by the present invention is：
A kind of chitosan/oxidized graphene composite materials of Zn ferrite@, it is characterised in that：By magnetic particle Zn ferrite
It is obtained with magnetic Zn ferrite chitosan with chitosan crosslinked, then Zn ferrite is chitosan loaded in graphene oxide
The chitosan/oxidized graphene composite materials of Zn ferrite@, the magnetic particle Zn ferrite and the shell are made on lamella
The mass ratio of glycan is 0.83~1.66:3, the Zn ferrite@chitosans and the graphene oxide mass ratio be 0.8~
1.2:1。
A kind of preparation method of the chitosan/oxidized graphene composite materials of Zn ferrite@, which is characterized in that including as follows
Step：
A, Zn ferrite@chitosans are prepared：By ZnCl2、FeCl3With redistilled water wiring solution-forming, and instill in ammonium hydroxide,
By the mixed solution, constant temperature is stirred to react in a water bath again, and obtained product is calcined in Muffle furnace obtains magnetic particle zinc-iron oxygen
Body；It dissolves chitosan in acetic acid solution, adds magnetic particle Zn ferrite, the glutaraldehyde that purity is 25% is added to
It mixes, and is stirred to react with solution in flask, use petroleum ether, ethyl alcohol, second distillation water washing precipitate upright to pH value successively
It is 7, Zn ferrite@chitosans is made；
B, the chitosan/oxidized graphene composite materials of Zn ferrite@are prepared：Graphene oxide is dissolved in redistilled water
Ultrasound obtains the suspension of GO (graphene oxide), and 1- (3- dimethylamino-propyls) -3- ethyls carbon two is added in GO suspensions
Imines (EDC) and sub- (NHS) solution of hydroxyl Hu Po Hai simultaneously continuously stir 2 hours, so that the activated carboxylic in GO, molten using NaOH
Liquid tune pH value is 7, and graphene oxide solution is made；Zn ferrite@chitosans and graphene oxide solution obtained are added again
It into the flask equipped with redistilled water, and is ultrasonically treated, acquired solution is stirred and uses sodium hydroxide solution, distilled water successively
Washing precipitation is 7 up to pH value, then screens product under externally-applied magnetic field help, the product being collected into is Zn ferrite shell
Glycan/graphene oxide composite material.
ZnCl in step A2Quality is 0.523g, FeCl3Quality is 1.031g, magnetic particle Zn ferrite quality is 0.083
~0.166g, chitosan mass 0.3g, acetic acid solution mass fraction are 0.3%, and the glutaraldehyde volume that purity is 25% is
2mL；Graphene oxide quality described in step B is a concentration of 0.03M of 0.3g, EDC a concentration of 0.03M, NHS, Zn ferrite@shells
Glycan quality is 0.24~0.36g, sodium hydroxide solution mass fraction is 2%.
It is 90 DEG C that constant temperature, which is stirred to react temperature, in the step A, reaction time 3h.
The reaction temperature calcined in Muffle furnace in the step A is 650 DEG C, reaction time 2h.
It is 60 DEG C that temperature is stirred to react in the step A, reaction time 2h.
Ultrasonic temperature is 30 DEG C in the step B, reaction time 3h.
The chitosan/oxidized graphene composite materials of Zn ferrite@are in the application of processing water neutral and alkali magenta, specific steps
For：It is 10 that the chitosan/oxidized graphene composite material adsorbents of 30~80mg Zn ferrites@, which are added to 25mL concentration ranges,
In the Basic Fuchsin in Aqueous Solution of~100mg/L, pH of mixed is adjusted to neutrality, then, is put into 30 degrees Celsius of isothermal vibration devices and shakes
For 24 hours, the chitosan/oxidized graphene composite materials of Zn ferrite@are separated with magnet, is completed to the absorption of basic fuchsin
Reason.The application, concussion temperature are 20~40 DEG C, and the concussion time is 4h, shake the rotating speed of absorption for 200rpm, the application,
The pH value of waste water containing dye is 3~10, and dye strength is 10~100mg/L.
The above-mentioned chitosan/oxidized graphene composite material preparation process of Zn ferrite@is simple, at low cost, and adsorptivity
It can be good.
Description of the drawings：
Fig. 1 is the chitosan/oxidized graphene composite woods of graphene oxide (A) Zn ferrite@that the method for the present invention is prepared
Expect the scanning electron microscope diagram of (B, C) and the X-ray diffractogram of the chitosan/oxidized graphene composite materials of Zn ferrite@.
Fig. 2, which is the chitosan/oxidized graphene composite material absorption pH of Zn ferrite@that the method for the present invention is prepared, to be influenced to divide
Analysis.
Fig. 3 is the chitosan/oxidized graphene composite material adsorption dynamics adsorption kinetics of Zn ferrite@point that the method for the present invention is prepared
Analysis.
Fig. 4 is the chitosan/oxidized graphene composite material Adsorption thermodynamics of Zn ferrite@point that the method for the present invention is prepared
Analysis.
Specific embodiment mode
Following embodiment material therefor and instrument are commercially available.The feature of the present invention is further described below by example,
But the present invention is not limited to the following examples.
Embodiment 1
The preparation method of the above-mentioned chitosan/oxidized graphene composite materials of Zn ferrite@：
(1)0.523g ZnCl2,1.031g FeCl3With 30mL redistilled water wiring solution-formings, and instill in ammonium hydroxide, after will
The mixed solution is put into constant temperature in 90 DEG C of water-baths and is stirred to react 3h.Final product calcines 2h in Muffle furnace under the conditions of 650 DEG C.It
The magnetic particle Zn ferrite for Chitosan-coated is obtained by magnetic screening afterwards.
(2) 0.30g chitosans are dissolved in the acetic acid solution of 30mL concentration 0.3%, by 0.083g magnetic particle zinc-irons
Oxysome is added in four neck round-bottom flasks equipped with the solution.By 2mL purity be 25% glutaraldehyde be added in flask with it is molten
Liquid mixes, and is stirred to react 2h at 60 DEG C.Use petroleum ether, ethyl alcohol, second distillation water washing precipitate upright to pH value successively
It is 7.Then deposit is dried in vacuo at 50 DEG C, obtained substance is exactly Zn ferrite@chitosans.
(3) 0.3g graphene oxides are added in redistilled water and ultrasound obtains the suspension of GO in 3 hours.It is suspended in GO
0.03M EDC and 0.03M NHS solution is added in liquid and continuously stirs 2h, so that the activated carboxylic in GO.Use NaOH solution
It is 7 to adjust pH value.0.24g Zn ferrite@chitosans and graphene oxide solution obtained are added to equipped with redistilled water
It in flask, and is ultrasonically treated, acquired solution is stirred into 2h at 60 DEG C.It is heavy with 2% sodium hydroxide solution, distillation water washing successively
It forms sediment until pH value is 7.Then product is screened under externally-applied magnetic field help, is dried in vacuo at 50 DEG C of the product being collected into.Gained is most
Final product is exactly the chitosan/oxidized graphene composite materials of Zn ferrite@.
Embodiment 2
(1)0.523g ZnCl2,1.031g FeCl3With 30mL redistilled water wiring solution-formings, and instill in ammonium hydroxide, after will
The mixed solution is put into isothermal reaction 3h in 90 DEG C of water-baths.Final product calcines 2h in Muffle furnace under the conditions of 650 DEG C.Lead to later
It crosses magnetic screening and obtains the Zn ferrite for being used for Chitosan-coated.
(2) 0.30g chitosans are dissolved in the acetic acid solution of 30mL concentration 0.3%.0.166g magnetic particles are added
Into four neck round-bottom flasks equipped with the solution.The glutaraldehyde that 2mL purity is 25% is added in flask and is mixed with solution, and
It is stirred to react 2h at 60 DEG C.It is 7 to use petroleum ether, ethyl alcohol, second distillation water washing precipitate upright successively to pH value.Then will
Deposit is dried in vacuo at 50 DEG C, and obtained substance is exactly Zn ferrite@chitosans.
(3) 0.3g graphene oxides are added in redistilled water and ultrasound obtains the suspension of GO in three hours.It is outstanding in GO
0.03M EDC and 0.03M NHS solution is added in turbid and continuously stirs 2h, so that the activated carboxylic in GO.It is molten using NaOH
Liquid tune pH value is 7.0.36g Zn ferrite@chitosans and graphene oxide solution obtained are added to equipped with redistilled water
Flask in, and be ultrasonically treated, acquired solution stirred into 2h at 60 DEG C.Successively with 2% sodium hydroxide solution, distillation water washing
Precipitation is until pH value is 7.Then product is screened under externally-applied magnetic field help, is dried in vacuo at 50 DEG C of the product being collected into.Gained
Final product is exactly the chitosan/oxidized graphene composite materials of Zn ferrite@.Fig. 1 is the oxidation stone that the method for the present invention is prepared
The scanning electron microscope diagram and Zn ferrite@of the chitosan/oxidized graphene composite materials of black alkene (A) Zn ferrite@(B, C)
The X-ray diffractogram of chitosan/oxidized graphene composite material, it can be seen that Zn ferrite and chitosan are successfully supported on oxygen
Change surface of graphene oxide.
Embodiment 3
The chitosan/oxidized graphene composite materials of Zn ferrite@in a kind of embodiment 1 must answer in adsorbing basic fuchsin
With concrete application method is：
By the basic fuchsin of 0.03g Zn ferrites@chitosan/oxidized graphene composite material and a concentration of 10mg/L of 25mL
Solution is added in 50mL centrifuge tubes, and mixed liquor pH value is neutrality, is put into 20 DEG C of isothermal vibration devices and shakes 4 hours.Use magnet
The chitosan/oxidized graphene composite materials of Zn ferrite@are separated, it is dense to measure excess dye with ultraviolet specrophotometer
Degree.The wherein a length of 542nm of basic fuchsin maximum absorption wave.
Embodiment 4
The chitosan/oxidized graphene composite materials of Zn ferrite@in a kind of embodiment 1 must answer in adsorbing basic fuchsin
With concrete application method is：
By the alkaline product of 0.08g Zn ferrites@chitosan/oxidized graphene composite material and a concentration of 100mg/L of 25mL
It is neutrality that red solution, which is added to mixed liquor pH value in 50mL centrifuge tubes, is put into 40 DEG C of isothermal vibration devices and shakes 4 hours.Use magnet
The chitosan/oxidized graphene composite materials of Zn ferrite@are separated, it is dense to measure excess dye with ultraviolet specrophotometer
Degree.The wherein a length of 542nm of basic fuchsin maximum absorption wave.
By Fig. 2, when pH is in 9 or so, the chitosan/oxidized graphene composite materials of Zn ferrite@are to basic fuchsin
Adsorption effect it is best.Pass through the experimental analysis of Fig. 3 and Fig. 4, it can be seen that the chitosan/oxidized graphenes of Zn ferrite@are compound
Material absorption basic fuchsin is to meet absorption second-order dynamic and meet Langmuir thermodynamics.Data analysis, Zn ferrite@
Chitosan/oxidized graphene composite material absorption basic fuchsin is the spontaneous adsorption process of a heat absorption.
By above-mentioned a series of the study found that the chitosan/oxidized graphene composite materials of Zn ferrite@are to basic fuchsin
Adsorption effect be preferable.By example it has also been found that pH, temperature and basic fuchsin initial concentration all have adsorption effect
It is certain to influence.
Claims (7)
1. a kind of chitosan/oxidized graphene composite materials of Zn ferrite@exist in the application of processing water neutral and alkali magenta, feature
In, the specific steps are：It is dense that the chitosan/oxidized graphene composite material adsorbents of 30~80mg Zn ferrites@are added to 25mL
In the degree ranging from Basic Fuchsin in Aqueous Solution of 10~100mg/L, pH of mixed is adjusted to 9, then, is put into 20~40 degrees Celsius of constant temperature shakes
It swings and shakes 4h in device, separated the chitosan/oxidized graphene composite materials of Zn ferrite@with magnet, complete to alkaline product
Red adsorption treatment；The chitosan/oxidized graphene composite materials of Zn ferrite@are by magnetic particle Zn ferrite and chitosan
Crosslinking is obtained with magnetic Zn ferrite chitosan, then is made in graphene oxide layer by Zn ferrite is chitosan loaded
Obtain the chitosan/oxidized graphene composite materials of Zn ferrite@, the matter of the magnetic particle Zn ferrite and the chitosan
Amount is than being 0.83~1.66:3, the Zn ferrite@chitosans are 0.8~1.2 with the graphene oxide mass ratio:1.
2. application according to claim 1, which is characterized in that the wherein described chitosan/oxidized graphene of Zn ferrite is multiple
Condensation material is prepared using the method included the following steps：
A, Zn ferrite@chitosans are prepared：By ZnCl2、FeCl3It with redistilled water wiring solution-forming, and instills in ammonium hydroxide, then will
Constant temperature is stirred to react the mixed solution in a water bath, and obtained product is calcined in Muffle furnace and obtains magnetic particle Zn ferrite；
It dissolves chitosan in acetic acid solution, adds magnetic particle Zn ferrite obtained, the glutaraldehyde that purity is 25% is added
Enter and mixed into flask with solution, and be stirred to react, uses petroleum ether, ethyl alcohol, second distillation water washing precipitate upright extremely successively
PH value is 7, and Zn ferrite@chitosans are made；
B, the chitosan/oxidized graphene composite materials of Zn ferrite@are prepared：Graphene oxide is dissolved in redistilled water ultrasonic
The suspension of GO is obtained, EDC and NHS solution is added in GO suspensions and is continuously stirred 2 hours, so that the carboxyl in GO is lived
Change, the use of NaOH solution tune pH value is 7, graphene oxide solution is made；Again by Zn ferrite@chitosans and oxidation stone obtained
Black alkene solution is added in the flask equipped with redistilled water, and is ultrasonically treated, and acquired solution is stirred and uses hydroxide successively
Sodium solution, distillation water washing precipitation until pH value be 7, then externally-applied magnetic field help under screen product, the product being collected into is i.e.
For the chitosan/oxidized graphene composite materials of Zn ferrite@.
3. application according to claim 2, it is characterised in that：ZnCl in step A2Quality is 0.523g, FeCl3Quality is
1.031g, magnetic particle Zn ferrite quality be 0.083~0.166g, chitosan mass 0.3g, acetic acid solution mass fraction
It is 0.3%, the glutaraldehyde volume that purity is 25% is 2mL；Graphene oxide quality described in step B is that 0.3g, EDC are a concentration of
A concentration of 0.03M of 0.03M, NHS, Zn ferrite@chitosan masses are 0.24~0.36g, sodium hydroxide solution mass fraction is
2%.
4. application according to claim 2, it is characterised in that：It is 90 DEG C that constant temperature, which is stirred to react temperature, in the step A, instead
It is 3h between seasonable.
5. application according to claim 2, it is characterised in that：The reaction temperature calcined in Muffle furnace in the step A
It is 650 DEG C, reaction time 2h.
6. application according to claim 2, it is characterised in that：It is 60 DEG C that temperature is stirred to react in step A, B, reaction
Time is 2h.
7. application according to claim 2, it is characterised in that：Ultrasonic temperature is 30 DEG C in the step B, and the reaction time is
3h。
Priority Applications (1)
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| "氧化石墨及石墨烯对阳离子染料的吸附行为研究";李丽霞;《分析科学学报》;20140630;第30卷(第3期);引言部分，第2.3节，结论部分 * |
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