CN105148855A - Magnetic chitosan bamboo charcoal composite material, preparation method and application thereof - Google Patents
Magnetic chitosan bamboo charcoal composite material, preparation method and application thereof Download PDFInfo
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- CN105148855A CN105148855A CN201510476005.6A CN201510476005A CN105148855A CN 105148855 A CN105148855 A CN 105148855A CN 201510476005 A CN201510476005 A CN 201510476005A CN 105148855 A CN105148855 A CN 105148855A
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Abstract
The invention discloses a magnetic chitosan bamboo charcoal composite material, a preparation method and an application thereof. The preparation method comprises: getting a solution of chitosan; adding magnetic Fe3O4 nanoparticles and pre-treated bamboo charcoal into the solution, and performing fully stirring for uniform mixing; and slowing adding 5% of a glutaraldehyde solution drop by drop while stirring to obtain the magnetic chitosan bamboo charcoal composite material. The magnetic chitosan bamboo charcoal composite material has an excellent absorption effect on copper ions, is high in adsorption rate and convenient to recycle, and is a novel adsorbent of heavy metals.
Description
Technical field
The present invention relates to a kind of chitosan magnetic bamboo charcoal composite material, its preparation method and application.
Background technology
Copper is one of trace element of a kind of extensive distribution, Cu in natural water
2+content is extremely low, but along with the fast development of industrial or agricultural, Cu
2+be mixed into water body with various channel and cause Cu in water
2+concentration is higher, causes water pollution, and is taken in by human body by all means.Cu
2+as a kind of heavy metal ion, biodegradation, therefore Cu cannot be passed through
2+concentration is higher very harmful to organism, there is carcinogenic danger to human body.Excess intake Cu in human body
2+the illnesss such as the distortion of liver lenticular nucleus, acute copper poisoning can be caused.In order to effectively process Cu in industrial wastewater
2+pollute, developed the technique such as chemistry and electrochemical process, membrane technology, ion-exchange, but it is high to there is cost, complicated operation, the process shortcoming such as not easily.Absorption method have can follow, environmental protection, the advantage such as efficient, energy-conservation, chemiadsorption is Cu in process industrial wastewater
2+pollution be widely used.The adsorbent developed at present mainly contains synthetic resin, active carbon and some low-cost sorbents thereof, as zeolite, bentonite, also has the biological adsorption agents such as shitosan, starch, chitin.In the dirty water decontamination handles, adopt suitable absorbing process to Cu in water body
2+the process of polluting is significant.
Shitosan is the material that a kind of absorption property is strong, there is a large amount of-COOH and-NH in its macromolecular chain
3, mainly with the mode Adsorption of Heavy Metal Ions of chemisorbed.Have no the report that shitosan bamboo charcoal composite material is applied in copper absorption at present temporarily.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, provide a kind of chitosan magnetic bamboo charcoal composite material, its preparation method and application, have good suction-operated to copper ion, adsorption rate is high, is convenient to reclaim.
One of the technical solution adopted for the present invention to solve the technical problems is:
A preparation method for chitosan magnetic bamboo charcoal composite material, comprising:
1) bamboo charcoal is carried out pretreatment, remove impurity, sieving for standby;
2) get the chitosan solution of 1%, add magnetic Fe
3o
4nano particle and bamboo charcoal after pretreatment, fully mix, and slowly drips the glutaraldehyde solution of 5%, being stirred to solution is that thickness is block, at being placed in 85 ~ 95 DEG C, dry 22 ~ 26h, obtains chitosan magnetic bamboo charcoal composite material, chitosan solution, the magnetic Fe of described 1%
3o
4nano particle, bamboo charcoal, 5% the formula rate of glutaraldehyde solution as follows: 98 ~ 102ml:0.18 ~ 0.22g:0.18 ~ 0.22g:18 ~ 22ml.
In one embodiment: described step 2) in, dry 24h at being placed in 90 DEG C, obtains chitosan magnetic bamboo charcoal composite material; Chitosan solution, the magnetic Fe of described 1%
3o
4nano particle, bamboo charcoal, 5% the formula rate of glutaraldehyde solution as follows: 100ml:0.2g:0.2g:20ml.
In one embodiment: described step 1) in, bamboo charcoal is carried out pretreated method is: get bamboo charcoal, after grinding, boils and filters several times to remove dust and the impurity on surface, dry, cross 200 mesh sieves for subsequent use at putting 100 ~ 110 DEG C by deionized water.
In one embodiment: described step 2) in, magnetic Fe
3o
4the preparation method of nano particle is: in ethylene glycol, add 1,6-hexamethylene diamine, anhydrous sodium acetate and Iron(III) chloride hexahydrate, fully stir to form homogeneous colloids at 44 ~ 46 DEG C, this colloid is transferred in reactor, at 197 ~ 199 DEG C, react 5.5 ~ 6.5h, be cooled to room temperature, Separation of Solid and Liquid, gained solid is dry 9 ~ 11h at 68 ~ 72 DEG C, obtains magnetic Fe
3o
4nano particle; The ratio of described ethylene glycol, 1,6-hexamethylene diamine, anhydrous sodium acetate and Iron(III) chloride hexahydrate is 28 ~ 32ml:6 ~ 7g:1.8 ~ 2.2g:0.9 ~ 1.1g.
Two of the technical solution adopted for the present invention to solve the technical problems is:
A kind of chitosan magnetic bamboo charcoal composite material prepared by above-mentioned preparation method.
Three of the technical solution adopted for the present invention to solve the technical problems is:
The application of above-mentioned chitosan magnetic bamboo charcoal composite material on absorbing copper ion.
In one embodiment: adsorption temp 44 ~ 46 DEG C, pH value is 6.8 ~ 7.2, absorption 8h, Cu
2+initial concentration is not higher than 2.5 μ g/ml.
The technical program is compared with background technology, and its tool has the following advantages:
This research have employed the novel chitosan magnetic bamboo charcoal composite material of cross-linking method design and synthesis, for the copper ion in adsorbed water, utilizes the physisorption of bamboo charcoal to be combined with the chemisorption of shitosan, greatly strengthen adsorption effect, simultaneously magnetic Fe
3o
4particle not only facilitates the recovery of composite, also add adsorption capacity, result shows that this chitosan magnetic bamboo charcoal composite material has good suction-operated to copper ion, and adsorption rate is higher than chitosan magnetic and common shitosan bamboo charcoal composite material, under oscillating condition, temperature is 25 DEG C, to Cu when pH is 5
2+absorptivity, up to 96.07%, is a kind of novel heavy metal adsorption composite.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is variable concentrations Cu
2+ultra-violet absorption spectrum.
Fig. 2 is absorbance A and Cu
2+the calibration curve schematic diagram of concentration C.
Fig. 3 is magnetic Fe
3o
4the infrared spectrogram of nano particle and bamboo charcoal, in figure, a is magnetic Fe
3o
4nano particle, b is bamboo charcoal.
Fig. 4 is the infrared analysis collection of illustrative plates of chitosan magnetic bamboo charcoal composite material and chitosan magnetic, common shitosan bamboo charcoal composite material, and in figure, a is common shitosan bamboo charcoal composite material, and b is chitosan magnetic bamboo charcoal composite material, and c is chitosan magnetic.
Detailed description of the invention
Content of the present invention is illustrated below by embodiment:
Embodiment 1
A kind of chitosan magnetic bamboo charcoal composite material, its preparation method is as follows:
1) bamboo charcoal is carried out pretreatment: get bamboo charcoal, after grinding, boil by deionized water and filter several times to remove dust and the impurity on surface, dry at putting 105 DEG C, cross 200 mesh sieves for subsequent use;
2) get the chitosan solution of 1% of 100ml, add 0.2g magnetic Fe
3o
4nano particle and 0.2g bamboo charcoal after pretreatment, in ultrasonator, vibration fully mixing, slowly drips the glutaraldehyde solution of 5% of 20ml, and being stirred to solution is that thickness is block, is placed in 90 DEG C of baking oven inner drying 24h, obtains chitosan magnetic bamboo charcoal composite material.
Described step 2) in, magnetic Fe
3o
4the preparation method of nano particle is: in 30ml ethylene glycol, add 6.5g1,6-hexamethylene diamine, 2.0g anhydrous sodium acetate and 1.0g Iron(III) chloride hexahydrate, fully stir to form homogeneous colloids with magnetic stirring apparatus at 45 DEG C, with glass bar, this colloid drainage being transferred to 100ml is with in the liner reactor of polytetrafluoroethylene (PTFE), put into baking oven, 6h is reacted at 198 DEG C, take out reactor, treat that product is cooled to room temperature, ultrafiltration is with Separation of Solid and Liquid and simultaneously with absolute ethyl alcohol repeatedly drip washing, gained solid is dry 10h at 70 DEG C, obtains amino functional magnetic Fe
3o
4nano particle.Its Reactive Synthesis route is as follows:
Embodiment 2
The preparation of chitosan magnetic: the chitosan solution getting 1% of 100mL, add the benzinum of OP-10 and 50mL of 2mL as solvent, limit edged stirs.After make CS solution fully emulsified in thick white shape in 35 DEG C of emulsified stirrings, add the magnetic Fe in 0.2g embodiment 1
3o
4nano particle, in solution, fully mixes, and slowly drips the glutaraldehyde solution of 10mL5%.After reaction a period of time is completely crosslinked to shitosan, the NaOH solution dripping 0.5mol/L is 9.0 to pH, after continuing to be warming up to 60 DEG C, keep temperature-resistant reaction 1h, after vavuum pump vacuum filtration, with absolute ethyl alcohol and the abundant drip washing of deionized water vacuum filtration again, at the baking oven inner drying 24h of 90 DEG C, rear grind into powder, obtains chitosan magnetic.
The preparation of common shitosan bamboo charcoal composite material: the chitosan solution getting 1% of 100mL, add the bamboo charcoal after pretreatment of 0.2g, fully after mixing, slowly drip the glutaraldehyde solution of 10mL, until solution presents the block object of thickness, obtain common shitosan bamboo charcoal composite material.
In the colorimetric cylinder of 25mL, add the Cu of 10.0mg/L of 0mL (reference), 2mL, 4mL, 6mL, 8mL, 10mL respectively
2+titer, then the BCO developer adding the pH=8.5 sodium tetraborate buffer solution of 5mL and the 1g/L of 10mL respectively, be diluted with water to scale, shake up.After abundant colour developing 55min, ultraviolet specrophotometer is adopted to record Cu
2+ultra-violet absorption spectrum as Fig. 1, absorbance and Cu
2+the linear relationship of concentration C as Fig. 2, Cu in certain scope
2+concentration and absorbance have good linear relationship, absorbance A and Cu
2+the relational expression of solution concentration C: A=0.0107+0.29338*C, its coefficient R=0.99977.This calibration curve is used for the Cu of embodiment 2 ~ 10
2+concentration Testing.
Get the colorimetric cylinder of 25ml, respectively add the chitosan magnetic bamboo charcoal composite material of 0.02g embodiment 1, in colorimetric cylinder, add the Cu that 10mL mass concentration is 10 μ g/mL
2+solution, is adjusted to pH=7, at 45 DEG C, 120r/min vibrate 8h oscillating condition under make it fully adsorb, centrifugally make Separation of Solid and Liquid, get supernatant body, add the pH=8.5 sodium tetraborate buffer solution of 5ml and the BCO developer of 10mL0.1%, fully develop the color 55min, records Cu in solution
2+content, calculate Cu according to above-mentioned calibration curve
2+concentration, and then obtain Cu
2+adsorption rate.
After testing, Cu
2+adsorption rate is 93.86%.The Cu of chitosan magnetic, common shitosan bamboo charcoal composite material is adopted under the same terms
2+adsorption rate is respectively 90.18%, 88.23%.
Embodiment 3
Get the colorimetric cylinder of 25ml, add the chitosan magnetic bamboo charcoal composite material of 0.02g embodiment 1, in colorimetric cylinder, add the Cu that 10mL mass concentration is 10 μ g/mL
2+solution, is adjusted to pH=5, at 25 DEG C, 120r/min vibrate 8h oscillating condition under make it fully adsorb, centrifugally make Separation of Solid and Liquid, get supernatant body, add the pH=8.5 sodium tetraborate buffer solution of 5ml and the BCO developer of 10mL0.1%, fully develop the color 55min, records Cu in solution
2+content, calculate Cu according to the calibration curve of embodiment 2
2+concentration, and then obtain Cu
2+adsorption rate.
After testing, Cu
2+adsorption rate is 88.25%.The Cu of chitosan magnetic, common shitosan bamboo charcoal composite material is adopted under the same terms
2+adsorption rate is respectively 86.23%, 83.06%.
Embodiment 4
Get the colorimetric cylinder of 25ml, add the chitosan magnetic bamboo charcoal composite material of 0.02g embodiment 1, in colorimetric cylinder, add the Cu that 10mL mass concentration is 3.2 μ g/mL
2+solution, is adjusted to pH=7, at 45 DEG C, makes it fully adsorb 10h, centrifugally makes Separation of Solid and Liquid, and get supernatant body, add the pH=8.5 sodium tetraborate buffer solution of 5ml and the BCO developer of 10mL0.1%, fully develop the color 55min, records Cu in solution
2+content, calculate Cu according to the calibration curve of embodiment 2
2+concentration, and then obtain Cu
2+adsorption rate.
After testing, Cu
2+adsorption rate is 90.89%.The Cu of chitosan magnetic, common shitosan bamboo charcoal composite material is adopted under the same terms
2+adsorption rate is respectively 85.87%, 81.69%.
Embodiment 5
Get the colorimetric cylinder of 25ml, add the chitosan magnetic bamboo charcoal composite material of 0.02g embodiment 1, in colorimetric cylinder, add the Cu that 10mL mass concentration is 10 μ g/mL
2+solution, is adjusted to pH=7, at 35 DEG C, 120r/min vibrate 12h oscillating condition under make it fully adsorb, centrifugally make Separation of Solid and Liquid, get supernatant body, add the pH=8.5 sodium tetraborate buffer solution of 5ml and the BCO developer of 10mL0.1%, fully develop the color 55min, records Cu in solution
2+content, calculate Cu according to the calibration curve of embodiment 2
2+concentration, and then obtain Cu
2+adsorption rate.
After testing, Cu
2+adsorption rate is 92.13%.The Cu of chitosan magnetic, common shitosan bamboo charcoal composite material is adopted under the same terms
2+adsorption rate is respectively 88.85%, 85.15%.
Embodiment 6
Get the colorimetric cylinder of 25ml, add the chitosan magnetic bamboo charcoal composite material of 0.02g embodiment 1, in colorimetric cylinder, add the Cu that 10mL mass concentration is 4 μ g/mL
2+solution, is adjusted to pH=1, at 55 DEG C, makes it fully adsorb 6h, centrifugally makes Separation of Solid and Liquid, and get supernatant body, add the pH=8.5 sodium tetraborate buffer solution of 5ml and the BCO developer of 10mL0.1%, fully develop the color 55min, records Cu in solution
2+content, calculate Cu according to the calibration curve of embodiment 2
2+concentration, and then obtain Cu
2+adsorption rate.
After testing, Cu
2+adsorption rate is 85.34%.The Cu of chitosan magnetic, common shitosan bamboo charcoal composite material is adopted under the same terms
2+adsorption rate is respectively 80.25%, 76.67%.
Embodiment 7
Get the colorimetric cylinder of 25ml, add the chitosan magnetic bamboo charcoal composite material of 0.02g embodiment 1, in colorimetric cylinder, add the Cu that 10mL mass concentration is 0.8 μ g/mL
2+solution, is adjusted to pH=4, at 65 DEG C, makes it fully adsorb 4h, centrifugally makes Separation of Solid and Liquid, and get supernatant body, add the pH=8.5 sodium tetraborate buffer solution of 5ml and the BCO developer of 10mL0.1%, fully develop the color 55min, records Cu in solution
2+content, calculate Cu according to the calibration curve of embodiment 2
2+concentration, and then obtain Cu
2+adsorption rate.
After testing, Cu
2+adsorption rate is 86.23%.The Cu of chitosan magnetic, common shitosan bamboo charcoal composite material is adopted under the same terms
2+adsorption rate is respectively 81.52%, 77.70%.
Embodiment 8
Get the colorimetric cylinder of 25ml, add the chitosan magnetic bamboo charcoal composite material of 0.02g embodiment 1, in colorimetric cylinder, add the Cu that 10mL mass concentration is 1.6 μ g/mL
2+solution, is adjusted to pH=6, at 25 DEG C, 120r/min vibrate 6h oscillating condition under make it fully adsorb, centrifugally make Separation of Solid and Liquid, get supernatant body, add the pH=8.5 sodium tetraborate buffer solution of 5ml and the BCO developer of 10mL0.1%, fully develop the color 55min, records Cu in solution
2+content, calculate Cu according to the calibration curve of embodiment 2
2+concentration, and then obtain Cu
2+adsorption rate.
After testing, Cu
2+adsorption rate is 87.35%.The Cu of chitosan magnetic, common shitosan bamboo charcoal composite material is adopted under the same terms
2+adsorption rate is respectively 83.29%, 78.86%.
Embodiment 9
Get the colorimetric cylinder of 25ml, add the chitosan magnetic bamboo charcoal composite material of 0.02g embodiment 1, in colorimetric cylinder, add the Cu that 10mL mass concentration is 4 μ g/mL
2+solution, is adjusted to pH=6, at 35 DEG C, makes it fully adsorb 8h, centrifugally makes Separation of Solid and Liquid, and get supernatant body, add the pH=8.5 sodium tetraborate buffer solution of 5ml and the BCO developer of 10mL0.1%, fully develop the color 55min, records Cu in solution
2+content, calculate Cu according to the calibration curve of embodiment 2
2+concentration, and then obtain Cu
2+adsorption rate.
After testing, Cu
2+adsorption rate is 90.44%.The Cu of chitosan magnetic, common shitosan bamboo charcoal composite material is adopted under the same terms
2+adsorption rate is respectively 85.02%, 79.93%.
Embodiment 10
Get the colorimetric cylinder of 25ml, add the chitosan magnetic bamboo charcoal composite material of 0.02g embodiment 1, in colorimetric cylinder, add the Cu that 10mL mass concentration is 10 μ g/mL
2+solution, is adjusted to pH=7, at 45 DEG C, 120r/min vibrate 6h oscillating condition under make it fully adsorb, centrifugally make Separation of Solid and Liquid, get supernatant body, add the pH=8.5 sodium tetraborate buffer solution of 5ml and the BCO developer of 10mL0.1%, fully develop the color 55min, records Cu in solution
2+content, calculate Cu according to the calibration curve of embodiment 2
2+concentration, and then obtain Cu
2+adsorption rate.
After testing, Cu
2+adsorption rate is 90.03%.The Cu of chitosan magnetic, common shitosan bamboo charcoal composite material is adopted under the same terms
2+adsorption rate is respectively 85.55%, 81.09%.
Above-described embodiment all can realize the effect of following experimental example:
Experimental example 1: the infrared analysis of chitosan magnetic bamboo charcoal composite material
Be 500 ~ 4000cm at wavelength
-1scope in test magnetic Fe respectively
3o
4the infrared spectrum of nano particle, bamboo charcoal, chitosan magnetic bamboo charcoal composite material, chitosan magnetic, common shitosan bamboo charcoal composite material.Fig. 3 is magnetic Fe
3o
4the infrared spectrogram of nano particle and bamboo charcoal, Fe
3o
4in Fe-O key at 580cm
-1place creates absworption peak; Bamboo charcoal is at 785cm
-1place creates the flexural vibrations peak of c h bond.Fig. 4 is the infrared analysis collection of illustrative plates of chitosan magnetic bamboo charcoal composite material and chitosan magnetic, common shitosan bamboo charcoal composite material, at 1744cm
-1place is-NH on shitosan macromolecular chain
3with glutaraldehyde-CHO occurs crosslinked to generate the characteristic peak of-NHCO and the characteristic absorption peak of amide groups, 2930cm
-1the absworption peak at place is the absworption peak that methyl in shitosan and methine produce, and analysis chart 1 successfully synthesizes with the known chitosan magnetic bamboo charcoal composite material of Fig. 2.
Those of ordinary skill in the art are known, when technical parameter of the present invention changes in following scope, it is expected to obtain same as the previously described embodiments or close technique effect:
A preparation method for chitosan magnetic bamboo charcoal composite material, comprising:
1) bamboo charcoal is carried out pretreatment, remove impurity, sieving for standby;
2) get the chitosan solution of 1%, add magnetic Fe
3o
4nano particle and bamboo charcoal after pretreatment, fully mix, and slowly drips the glutaraldehyde solution of 5%, and being stirred to solution is that thickness is block, and at being placed in 85 ~ 95 DEG C, dry 22 ~ 26h, obtains chitosan magnetic bamboo charcoal composite material; Chitosan solution, the magnetic Fe of described 1%
3o
4nano particle, bamboo charcoal, 5% the formula rate of glutaraldehyde solution as follows: 98 ~ 102ml:0.18 ~ 0.22g:0.18 ~ 0.22g:18 ~ 22ml.
Described step 2) in, dry 24h at being placed in 90 DEG C, obtains chitosan magnetic bamboo charcoal composite material; Chitosan solution, the magnetic Fe of described 1%
3o
4nano particle, bamboo charcoal, 5% the formula rate of glutaraldehyde solution as follows: 100ml:0.2g:0.2g:20ml.
Described step 1) in, bamboo charcoal is carried out pretreated method is: get bamboo charcoal, after grinding, boils and filters several times to remove dust and the impurity on surface, dry, cross 200 mesh sieves for subsequent use at putting 100 ~ 110 DEG C by deionized water.
Described step 2) in, magnetic Fe
3o
4the preparation method of nano particle is: in ethylene glycol, add 1,6-hexamethylene diamine, anhydrous sodium acetate and Iron(III) chloride hexahydrate, fully stir to form homogeneous colloids at 44 ~ 46 DEG C, this colloid is transferred in liner reactor, at 197 ~ 199 DEG C, react 5.5 ~ 6.5h, be cooled to room temperature, Separation of Solid and Liquid, gained solid is dry 9 ~ 11h at 68 ~ 72 DEG C, obtains magnetic Fe
3o
4nano particle; The ratio of described ethylene glycol, 1,6-hexamethylene diamine, anhydrous sodium acetate and Iron(III) chloride hexahydrate is 28 ~ 32ml:6 ~ 7g:1.8 ~ 2.2g:0.9 ~ 1.1g.
A kind of chitosan magnetic bamboo charcoal composite material prepared by above-mentioned preparation method.
The application of above-mentioned chitosan magnetic bamboo charcoal composite material on absorbing copper ion.
Wherein, adsorption temp 44 ~ 46 DEG C, pH value is 6.8 ~ 7.2, absorption 8h, Cu
2+initial concentration is not higher than 2.5 μ g/ml.
The above, be only present pre-ferred embodiments, therefore can not limit scope of the invention process according to this, the equivalence change namely done according to the scope of the claims of the present invention and description with modify, all should still belong in scope that the present invention contains.
Claims (7)
1. a preparation method for chitosan magnetic bamboo charcoal composite material, is characterized in that: comprising:
1) bamboo charcoal is carried out pretreatment, remove impurity, sieving for standby;
2) get the chitosan solution of 1%, add magnetic Fe
3o
4nano particle and bamboo charcoal after pretreatment, fully mix, and slowly drips the glutaraldehyde solution of 5%, and being stirred to solution is that thickness is block, and at being placed in 85 ~ 95 DEG C, dry 22 ~ 26h, obtains chitosan magnetic bamboo charcoal composite material; Chitosan solution, the magnetic Fe of described 1%
3o
4nano particle, bamboo charcoal, 5% the formula rate of glutaraldehyde solution as follows: 98 ~ 102ml:0.18 ~ 0.22g:0.18 ~ 0.22g:18 ~ 22ml.
2. the preparation method of a kind of chitosan magnetic bamboo charcoal composite material according to claim 1, is characterized in that: described step 2) in, dry 24h at being placed in 90 DEG C, obtains chitosan magnetic bamboo charcoal composite material; Chitosan solution, the magnetic Fe of described 1%
3o
4nano particle, bamboo charcoal, 5% the formula rate of glutaraldehyde solution as follows: 100ml:0.2g:0.2g:20ml.
3. the preparation method of a kind of chitosan magnetic bamboo charcoal composite material according to claim 1 and 2, it is characterized in that: described step 1) in, bamboo charcoal is carried out pretreated method is: get bamboo charcoal, after grinding, boil by deionized water and filter several times to remove dust and the impurity on surface, dry at putting 100 ~ 110 DEG C, cross 200 mesh sieves for subsequent use.
4. the preparation method of a kind of chitosan magnetic bamboo charcoal composite material according to claim 1 and 2, is characterized in that: described step 2) in, magnetic Fe
3o
4the preparation method of nano particle is: in ethylene glycol, add 1,6-hexamethylene diamine, anhydrous sodium acetate and Iron(III) chloride hexahydrate, fully stir to form homogeneous colloids at 44 ~ 46 DEG C, this colloid is transferred in reactor, at 197 ~ 199 DEG C, react 5.5 ~ 6.5h, be cooled to room temperature, Separation of Solid and Liquid, gained solid is dry 9 ~ 11h at 68 ~ 72 DEG C, obtains magnetic Fe
3o
4nano particle; The ratio of described ethylene glycol, 1,6-hexamethylene diamine, anhydrous sodium acetate and Iron(III) chloride hexahydrate is 28 ~ 32ml:6 ~ 7g:1.8 ~ 2.2g:0.9 ~ 1.1g.
5. the chitosan magnetic bamboo charcoal composite material prepared by a preparation method according to any one of claim 1 to 4.
6. the application of chitosan magnetic bamboo charcoal composite material according to claim 4 on absorbing copper ion.
7. application according to claim 6, is characterized in that: adsorption temp 44 ~ 46 DEG C, and pH value is 6.8 ~ 7.2, absorption 8h, Cu
2+initial concentration is not higher than 2.5 μ g/ml.
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| CN105817203A (en) * | 2016-05-27 | 2016-08-03 | 国际竹藤中心 | Bamboo charcoal-based magnetic composite material and preparation method |
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| CN108607529A (en) * | 2018-05-08 | 2018-10-02 | 中国科学院烟台海岸带研究所 | A kind of purification filtrate of Organic-inorganic composite contaminant water and its preparation method and application |
| CN108636366A (en) * | 2018-04-17 | 2018-10-12 | 江苏国创环保科技有限公司 | A kind of preparation method and application of the magnetic adsorptive material of absorption heavy metal |
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| CN105817203A (en) * | 2016-05-27 | 2016-08-03 | 国际竹藤中心 | Bamboo charcoal-based magnetic composite material and preparation method |
| CN106268673A (en) * | 2016-09-06 | 2017-01-04 | 河海大学 | A kind of preparation method of amino modified chitosan composite adsorbing material |
| CN106268673B (en) * | 2016-09-06 | 2019-03-12 | 河海大学 | A kind of preparation method of amino modified chitosan composite adsorbing material |
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| CN109589941A (en) * | 2018-12-26 | 2019-04-09 | 农业部环境保护科研监测所 | Preparation method, magnetic composite and its application of magnetic composite |
| CN113788509A (en) * | 2021-09-10 | 2021-12-14 | 陆挺 | Water treatment chitosan mixture and preparation method thereof |
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