CN107903408A - A kind of cellulose feather protein hydrogel nano metal compound and preparation method thereof - Google Patents
A kind of cellulose feather protein hydrogel nano metal compound and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of cellulose feather protein hydrogel nano metal compound and preparation method thereof, the compound includes cellulose feather protein hydrogel, nano-metal particle is adsorbed with inside cellulose feather protein hydrogel, the cellulose feather protein hydrogel is mixed to prepare for the cellulose of ion liquid dissolving and the feather protein of ion liquid dissolving, the hydrogel of the present invention can adsorb heavy metal very well so as to prepare hydrogel nano metal compound, and as catalyst degraded nitro compound, dyestuff, chlorohydrocarbon.The process not only realizes the recycling of solid waste, also achieves the recycling and utilization of heavy metal, has accomplished the treatment of wastes with processes of wastes against one another.And the hydrogel prepared is pure natural molecular material, has good degradability, the recyclable recycling of ionic liquid used in the engineering for preparing hydrogel sphere.Of low cost in whole process, production process is easy and environmentally protective has broad application prospects.
Description
Technical field
The present invention relates to a kind of cellulose-feather protein hydrogel nano metal compound and preparation method thereof, belonging to
And field of environmental technology.
Background technology
Hydrogel is containing hydrophilic functional group (- OH ,-NH2,-OOH) and there is the cross-linked polymeric of tridimensional network
Thing, in water can absorb a large amount of water and it is indeformable.Functional group in hydrogel complexing can occur with metal ion or chelating is made
With being the preferable soft template of metal nanoparticle so there is significant adsorption effect to heavy metal.The structure of hydrogel in itself
It can make metal nanoparticle dispersed again and prevent its reunion, ensure that their stability.
Crops wheat stalk is a kind of reproducible biomass resource, the annual yield in China about 700,000,000, wherein big portion absolutely
Divide and be not utilized effectively, cause the huge waste of natural resources and a series of problem of environmental pollutions.Stalk it is main into
It is cellulose, hemicellulose, lignin to divide.There are strong adsorption capacity, institute to moisture containing largely free hydroxyl in cellulose
Synthetic hydrogel can be used for cellulose, and the hydrogel synthesized belongs to degradable Green Chemistry product.It is so both sharp
With waste resource, and new promising environment-friendly materials are prepared, killed two birds with one stone.
In daily life, waste by-product of the chicken feather as poultry industry, world's annual output more than 4,000,000 tons, its
The middle big chicken feather of the overwhelming majority can directly be carried out landfill disposal, not utilized well.This way not only causes
The waste of resource, and increase the burden in soil, it can also damage to environment.Discarded chicken feather is important keratin protein
Resource, the content of keratin is up to more than 80% in chicken feather, is a kind of protein resource being dirt cheap.Keratin is a kind of
Rigid albumen, since keratin molecule passes through the three-dimensional molecular knot of the highly cross-linked stabilization of the formation such as disulfide bond, hydrogen bond, ionic bond
Structure, so do not dissolved under general condition, and ionic liquid can be accomplished to dissolve keratin.Since ionic liquid fusing point is low, hot steady
Unique properties such as qualitative good, not volatile, solvability is strong make it receive much concern in recent years, and are considered as that one kind can
The green solvent and reaction medium of traditional volatile solvent are substituted, there is potential application valency in fields such as extraction, synthesis, new energy
Value.Reported some successively in recent years and prepare feather protein using reduction method and ion liquid dissolving method, nonetheless, on angle
The research that albumen is prepared and its utilized is still very little.And the blending prepared using stalk cellulose and chicken feather protein as raw material
Type hydrogel, has no report.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of cellulose-feather protein hydrogel nano metal compound
And preparation method thereof.
Summary of the invention：
The present invention dissolves stalk cellulose using stalk and feather as raw material, using ionic liquid (a kind of novel green solvent)
Cellulose-feather protein hydrogel is prepared with feather protein, and the magnetic fibre of tool is further prepared by chemical reaction
Tie up element-feather protein hydrogel.Group (- NH in hydrogel2,-OH) and heavy metal ion can be adsorbed, pass through in-situ reducing
Method prepares metal nanoparticle inside hydrogel, and obtained hydrogel nano metal compound can be used for a variety of catalysis anti-
Should, such as nitro compound reducing, chlorohydrocarbon, colored dyes, the various hydride of catalyzing hydrolysis etc. of degrading.Realized in whole process
Refuse reclamation, the treatment of wastes with processes of wastes against one another, the hydrogel of preparation belongs to natural macromolecular material, biodegradable, is a kind of to have hair
The ep-type material of exhibition prospect.
Technical scheme is as follows：
A kind of cellulose-feather protein hydrogel nano metal compound, including cellulose-feather protein hydrogel,
Nano-metal particle is adsorbed with inside cellulose-feather protein hydrogel, the load capacity of nano-metal particle is 21.7-35.25,
Unit：Mg/g, the cellulose-feather protein hydrogel are the cellulose of ion liquid dissolving and the plumage of ion liquid dissolving
Hairless protein is mixed to prepare.
According to the present invention, the preparation method of a kind of cellulose-feather protein hydrogel nano metal compound, including：
Stalk after processing prepares dissolving stalk cellulose step with ion liquid dissolving；
Feather after processing prepares dissolving feather protein step with ion liquid dissolving；
Dissolving stalk cellulose is mixed with the nonmagnetic/cellulose that is magnetic-feather protein water-setting with dissolving feather protein
Glue step；
Nonmagnetic/the cellulose that is magnetic-feather protein hydrogel absorption heavy metal ion, the weight being adsorbed in hydrogel sphere
Metal ion is converted into nano metal step, and it is compound to obtain the nonmagnetic/cellulose that is magnetic-feather protein hydrogel nano metal
Thing.
Preferable according to the present invention, the stalk after the processing prepares dissolving stalk fibre with ion liquid dissolving
Plain step is：Stalk clean after drying, crushing, sieving with HNO3Solution mixes, heating stirring reaction, the solid obtained after reaction
Stalk cellulose is made in cleaning, drying, sieving, and stalk cellulose is mixed with ionic liquid, and it is fine that heating stirring obtains dissolving stalk
Dimension element.
It is further preferred that the stalk is wheat stalk or maize straw, the drying temperature of stalk is 65~80 DEG C,
It is 90-110 mesh to cross grit number, HNO3The mass percent of solution is 5%-15%, stalk and HNO3The mass ratio of solution is 1：
(40-60), heating stirring temperature are 100-120 DEG C, mixing time 6-10h.
It is further preferred that the ionic liquid is 1- butyl -3- methylimidazole villaumites (B [MIMCl]) or 1- allyls
Base -3- methylimidazole villaumites (A [MIMCl]), the mass ratio of stalk cellulose and ionic liquid is 3-10：100, dissolving stalk is fine
The plain heating-up temperature of dimension is 90-110 DEG C, mixing time 6-10h.
Preferable according to the present invention, the feather after the processing prepares dissolving feather protein step with ion liquid dissolving
It is：Feather cleans drying, crushes, and obtains crushing feather, crushes feather and is mixed with ionic liquid with ionic liquid, heating stirring obtains
To dissolving feather protein.
It is further preferred that the feather is chicken feather or duck feather, feather drying temperature is 55~70 DEG C, dissolves plumage
Ionic liquid used in hair is identical with the ionic liquid for dissolving stalk cellulose, and the mass ratio of feather and ionic liquid is 1-7：
100, dissolving feather heating-up temperature is 120-140 DEG C, mixing time 5-8h.
It is preferable according to invention, the dissolving stalk cellulose and dissolving feather protein be mixed with it is nonmagnetic/have magnetic
Property cellulose-feather protein hydrogel step is：Dissolving stalk cellulose is uniformly mixed with dissolving feather protein, obtained mixing
Liquid is instilled in deionized water dropwise to be soaked, and obtains nonmagnetic cellulose-feather protein hydrogel；Nonmagnetic cellulose-feather egg
Plain boiled water gel adds Fe2+And Fe3+Mixed solution in concussion absorption be placed in NaOH solution, clean, obtain magnetic fibre
Tie up element-feather protein hydrogel.
It is further preferred that the immersion is is placed in water immersion and certain interval of time changes a water, by ionic liquid
Body is replaced into water, and immersion interval time is 6-10h, and soaking time is 3 days, and deionized water collects after immersion, evaporates back
Ionic liquid is received for recycling, evaporation recovered temperature is 60-80 DEG C.
It is further preferred that dissolving stalk cellulose is with dissolving the mass ratio that feather protein mixes：(5-10):(1-3).
It is further preferred that Fe2+And Fe3+Mixed solution in Fe2+With Fe3+Molar ratio be 1:1.5-3, Fe2+With Fe3+
Concentration be 0.4-0.7mol/L, concussion adsorption time is 10-30h, and the preferable adsorption time that shakes is 8-12h.
It is further preferred that concussion absorption is placed in the NaOH solution that concentration is 0.4-0.7mol/L.
Nonmagnetic/the cellulose that is magnetic-feather protein hydrogel absorption heavy metal ion preferable according to invention, described
Specially：Nonmagnetic/the cellulose that is magnetic-feather protein hydrogel is respectively placed in heavy metal ion solution, in room temperature condition
Lower concussion absorption 10-30h, is cleaned with deionized water after the completion of absorption and removes unadsorbed heavy metal ion.
It is further preferred that the heavy metal ion is copper ion, nickel ion；
It is further preferred that the concentration of the heavy metal ion solution is 50-2000mg/L, more preferably 1500-
2000mg/L；Adsorption time is 12-24h.
Preferable according to invention, it is specific that the heavy metal ion being adsorbed in hydrogel sphere is converted into nano metal
For：Adsorbed heavy metal ion the nonmagnetic/hydrogel sphere that is magnetic be placed in it is continuous at ambient temperature in sodium borohydride solution
Stir 0.5-2h, the heavy metal ion being adsorbed in hydrogel sphere is converted into nano metal, obtain it is nonmagnetic/be magnetic fiber
Element-feather protein hydrogel nano metal compound.
It is further preferred that the concentration of the sodium borohydride solution is 0.1-2g/L, it is preferred that sodium borohydride solution
Concentration is 0.2-1.2g/L；The volume of the quality and sodium borohydride solution of the nonmagnetic/hydrogel nano metal compound that is magnetic
The ratio between be 1:100.
According to the present invention, the application of a kind of cellulose-feather protein hydrogel nano metal compound, for nitro of degrading
Benzoic acid, p-nitrophenol, chloramphenicol or methylene blue pollutant.
It is further preferred that biodegrading process is specific as follows：Hydrogel nano metal compound is placed in containing pollutant
In solution, and NaBH is added in the solution4, catalyzing and degrading pollutant, degradation temperature are 20-40 DEG C under agitation；Pollution
The concentration of thing is 25-125mg/L.
It is further preferred that the addition of hydrogel nano metal compound is：The solution for containing pollutant per 500mL adds
Enter hydrogel nano metal compound 0.5g-1.0g；NaBH4Addition be：0.2g-0.5g.
The beneficial effects of the invention are as follows：
1st, preparation method of the invention is simple, and stalk and feather raw material used is cheap and easy to get, and ionic liquid can be recycled,
It is of low cost, by the use of stalk and feather waste utilization is realized as raw material.
2nd, the nonmagnetic/cellulose that is magnetic-feather protein hydrogel produced by the present invention can effectively adsorb copper ion and make
Into hydrogel nano metal compound.Nonmagnetic/hydrogel nano metal the compound that is magnetic can be used for catalytic degradation nitration
Compound, dyestuff, chlorohydrocarbon.The present invention has not only handled heavy metal contaminants but also has realized the recycling of heavy metal
3rd, the nonmagnetic/hydrogel nano metal compound that is magnetic produced by the present invention can reuse.
4th, cellulose produced by the present invention-feather protein hydrogel is easy to degrade, environmental-friendly.
Brief description of the drawings
The gained of Fig. 1 embodiment of the present invention 4 is nonmagnetic, and cellulose-feather protein hydrogel nano metal compound scanning is electric
Mirror.
5 gained magnetic cellulose of Fig. 2 embodiment of the present invention-feather protein hydrogel nano metal compound scanning electron microscope.
The shadow of the amount paranitrobenzoic acid degraded of nonmagnetic hydrogel nano metal compound in Fig. 3 experimental examples 1 of the present invention
Ring.
NaBH in Fig. 4 experimental examples 2 of the present invention4Amount be paranitrobenzoic acid degraded influence.
The influence of the initial concentration paranitrobenzoic acid degraded of nitrobenzoyl acid solution in Fig. 5 experimental examples 3 of the present invention.
The influence that reaction temperature paranitrobenzoic acid is degraded in Fig. 6 experimental examples 4 of the present invention.
The influence of the amount paranitrobenzoic acid degraded of magnetic hydrogel nano metal compound in Fig. 7 experimental examples 5 of the present invention.
NaBH in Fig. 8 experimental examples 6 of the present invention4Amount be paranitrobenzoic acid degraded influence.
The influence of the initial concentration paranitrobenzoic acid degraded of nitrobenzoyl acid solution in Fig. 9 experimental examples 7 of the present invention.
The influence that reaction temperature paranitrobenzoic acid is degraded in Figure 10 experimental examples 8 of the present invention.
Embodiment
Below by specific embodiment and with reference to attached drawing, the present invention will be further described, but not limited to this.
The raw material used in embodiment is conventional commercial products.
Embodiment 1,
The preparation of cellulose-feather protein hydrogel：
(1) wheat stalk is dried at 70 ± 5 DEG C, then crushes and cross 100 mesh sieves, the Enteromorpha powder for collecting sieving is standby
With it is spare that chicken feather is cleaned the dries pulverizing at 60 ± 5 DEG C；
(2) 4g wheat stalk powder is taken in round-bottomed flask, by 200mL10%HNO3Solution is added in round-bottomed flask,
Mixed solution is taken out after 110 DEG C of stirring reactions 8h, 8h to be washed with deionized water only, untill supernatant water white transparency, that is, is obtained
Wheat straw fiber element, wheat straw fiber element is dried at 70 ± 5 DEG C, is then crushed and is crossed 100 mesh sieves, collects sieving
Stalk cellulose end is standby；
(3) take stalk cellulose 0.5g made from step (2) to be placed in round-bottomed flask, 9.5g ionic liquids are added, 100
± 5 DEG C continuously stir reaction 8h, and stalk cellulose has been completely dissolved at this time；
(4) take chicken feather 0.3g made from step (1) to be placed in round-bottomed flask, 9.7g ionic liquids are added, 130 ± 5
Reaction 6h DEG C is continuously stirred, feather protein has been completely dissolved at this time；
(5) by step (3) and step (4), the good liquid of solution mixes completely, will be mixed with syringe
Close liquid and be added dropwise to dropwise in the beaker for fill deionized water and soak, a water is changed per 8h, immersion obtains cellulose-feather in 3 days
Protein hydrogel.The aqueous solution soaked is collected recycling ionic liquid is constantly evaporated under the conditions of 60 ± 5 DEG C and is circulated
Use.
Detection：5%+3% celluloses-feather protein hydrogel made from 0.5g steps (5) is taken to be placed in copper ion solution,
Concussion absorption 24h at ambient temperature；Utilize flame atomic absorption spectrometry 5%+3% celluloses-feather protein mixed type water
Adsorbance of the gel ball to copper.Adsorbance is 24.7mg/g.
Embodiment 2,
The preparation method of cellulose-feather protein hydrogel as described in Example 1, except that changing cellulose
With the dosage of feather protein：
0.7g (0.3g, 0.5g, 1g) celluloses and 0.3g (0.1g, 0.2g) chicken feather is respectively taken to be dissolved in ion in step (3)
In liquid, remaining operation, dosage are identical with embodiment 1.5%+3%, 7%+1%, 7%+2%, 7%+3% are prepared,
The cellulose of 10%+3%, 10%+2%, 10%+1% different ratio-feather protein mixed type hydrogel sphere.Remaining operation, use
Amount is identical with embodiment 1.
After measured, the cellulose of the 7%+3% obtained by the present embodiment-feather protein mixed type hydrogel sphere is to copper ion
Adsorption effect is best, adsorbance 35.25mg/g.
Embodiment 3,
Has the preparation of magnetic cellulose-feather protein water-setting
Best proportion cellulose-feather protein the hydrogel obtained using embodiment 2 prepares magnetic cellulose-feather egg
Plain boiled water gel, including step are as follows：
(1) 0.5g 7%+3% celluloses-feather protein mixed type hydrogel sphere is taken to be placed in the mixed of 0.5mol/L iron ions
Close (Fe in solution2+：Fe3+=1:2 (molar ratios)) absorption 24h is shaken at ambient temperature；
(2) hydrogel sphere after taking-up absorption is put into 0.5mol/L NaOH solutions is cleaned after reaction 2h with deionized water
Unnecessary impurity above, obtains having magnetic cellulose-feather protein hydrogel.
Embodiment 4,
The preparation of nonmagnetic cellulose-feather protein hydrogel nano metal compound：
(1) the optimal nonmagnetic cellulose of Example 2-feather protein hydrogel 0.5g is placed in the conical flask of 100mL,
The content of copper ion for adding 50mL is the copper nitrate solution of 2000mg/L, is placed in concussion absorption 24h in 20 DEG C of water-bath oscillators.
(2) take out the hydrogel after step (1) absorption copper ion, soaked with enough deionized water, wash off it is unadsorbed in
Copper ion on hydrogel, scavenging period 1h；
(3) hydrogel sphere after the completion of step (2) is cleaned is taken out in beaker, and adding 50mL sodium borohydride contents is
The sodium borohydride solution of 1.0g/L, continuously stirs 1h at ambient temperature, and the heavy metal ion being adsorbed on hydrogel is converted
For nano metal, nonmagnetic cellulose-feather protein hydrogel nano metal compound is obtained；
Using：The nitrobenzoyl acid solution 500mL that concentration is 50mg/L is taken in beaker, by 0.5g hydrogel nano metals
Compound is placed in beaker, adds 0.5g NaBH4, the degrading nitrobenzene formic acid under conditions of 20 DEG C of magnetic agitations.
Application effect：Measured after the sample dilution of 1mL is taken out at interval of a period of time with ultraviolet reflective photometer in 267nm
Absorbance, the degradation rate of nitrobenzoic acid is determined with this.
Embodiment 5,
Be magnetic the preparation of cellulose-feather protein hydrogel nano metal compound：
(1) 3 magnetic celluloses of Example-feather protein hydrogel 0.5g is placed in the conical flask of 100mL, adds 50mL
Content of copper ion be 2000mg/L copper nitrate solution, be placed in 20 DEG C of water-bath oscillators concussion absorption 24h.
(2) take out the hydrogel after step (1) absorption copper ion, soaked with enough deionized water, wash off it is unadsorbed in
Copper ion on hydrogel, scavenging period 1h；
(3) magnetic hydrogel after the completion of step (2) is cleaned is taken out in beaker, and adding 50mL sodium borohydride contents is
The sodium borohydride solution of 1.0g/L, continuously stirs 1h at ambient temperature, and the heavy metal ion being adsorbed in hydrogel sphere is turned
Nano metal is turned to, obtains magnetic cellulose-feather protein hydrogel nano metal compound；
Using：The nitrobenzoyl acid solution 500mL that concentration is 50mg/L is taken in beaker, by 0.5g magnetic hydrogel nanometers
Metal composite is placed in beaker, adds 0.25g NaBH4, the degrading nitrobenzene formic acid under conditions of 20 DEG C of magnetic agitations.
Application effect：Measured after the sample dilution of 1mL is taken out at interval of a period of time with ultraviolet reflective photometer in 267nm
Absorbance, the degradation rate of nitrobenzoic acid is determined with this.
Embodiment 6,
As described in Example 4, except that in step (1), the measurement 0.75g of cellulose-feather protein hydrogel, its
Remaining operation, dosage are identical with embodiment 4.
Embodiment 7,
As described in Example 4, except that in step (1), the measurement 1g of cellulose-feather protein hydrogel, remaining
Operation, dosage are identical with embodiment 4.
Embodiment 8,
As described in Example 4, except that in step (4), NaBH4Amount be 0.3g, remaining operation, dosage and implementation
Example 4 is identical.
Embodiment 9,
As described in Example 4, except that in step (4), NaBH4Amount be 0.4g, remaining operation, dosage and implementation
Example 4 is identical.
Embodiment 10,
As described in Example 4, except that in step (4), the concentration of nitrobenzoic acid is 75mg/L, remaining operation,
Dosage is identical with embodiment 4.
Embodiment 11,
As described in Example 4, except that in step (4), the concentration of nitrobenzoic acid is 100mg/L, remaining operation,
Dosage is identical with embodiment 4.
Embodiment 12,
As described in Example 4, except that in step (4), reaction temperature is 30 DEG C, remaining operation, dosage and implementation
Example 4 is identical.
Embodiment 13,
As described in Example 4, except that in step (4), reaction temperature is 40 DEG C, remaining operation, dosage and implementation
Example 4 is identical.
Embodiment 14,
As described in Example 5, except that in step (1), the measurement of magnetic cellulose-feather protein hydrogel
0.75g, remaining operation, dosage are identical with embodiment 5.
Embodiment 15,
As described in Example 5, except that in step (1), the measurement 1g of magnetic cellulose-feather protein hydrogel,
Remaining operation, dosage are identical with embodiment 5.
Embodiment 16,
As described in Example 5, except that in step (4), NaBH4Amount be 0.2g, remaining operation, dosage and implementation
Example 5 is identical.
Embodiment 17,
As described in Example 5, except that in step (4), NaBH4Amount be 0.3g, remaining operation, dosage and implementation
Example 5 is identical.
Embodiment 18,
As described in Example 5, except that in step (4), the concentration of nitrobenzoic acid is 75mg/L, remaining operation,
Dosage is identical with embodiment 5.
Embodiment 19,
As described in Example 5, except that in step (4), the concentration of nitrobenzoic acid is 100mg/L, remaining operation,
Dosage is identical with embodiment 5.
Embodiment 20,
As described in Example 5, except that in step (4), reaction temperature is 30 DEG C, remaining operation, dosage and implementation
Example 5 is identical.
Embodiment 21,
As described in Example 5, except that in step (4), reaction temperature is 40 DEG C, remaining operation, dosage and implementation
Example 5 is identical.
Here is the experiment for the influence for carrying out different condition paranitrobenzoic acid degradation effect.
Experimental example 1：
The experiment of degrading nitrobenzene formic acid is carried out to embodiment 4,6,7, experimental result is as shown in Figure 3.
Experimental example 2：
The experiment of degrading nitrobenzene formic acid is carried out to embodiment 4,8,9, experimental result is as shown in Figure 4.
Experimental example 3
The experiment of degrading nitrobenzene formic acid is carried out to embodiment 4,10,11, experimental result is as shown in Figure 5.
Experimental example 4
The experiment of degrading nitrobenzene formic acid is carried out to embodiment 4,12,13, other conditions are constant to be controlled with thermostat water bath
Temperature, experimental result are as shown in Figure 6.
Experimental example 5
The experiment of degrading nitrobenzene formic acid is carried out to embodiment 5,14,15, experimental result is as shown in Figure 7.
Experimental example 6
The experiment of degrading nitrobenzene formic acid is carried out to embodiment 5,16,17, experimental result is as shown in Figure 8.
Experimental example 7
The experiment of degrading nitrobenzene formic acid is carried out to embodiment 5,18,19, experimental result is as shown in Figure 9.
Experimental example 8
The experiment of degrading nitrobenzene formic acid is carried out to embodiment 5,20,21, other conditions are constant to be controlled with thermostat water bath
Temperature, experimental result are as shown in Figure 10.
The results show：With the nonmagnetic/cellulose that is magnetic-amount of feather protein hydrogel nano metal compound, boron
The increase of sodium hydride amount, nitrobenzoic acid initial concentration, temperature, the degradation rate of nitrobenzoic acid all increased；Magnetic water-setting
The degraded of glue nano metal compound p-nitrophenol is better than nonmagnetic hydrogel nano metal compound.
Claims (10)
1. a kind of cellulose-feather protein hydrogel nano metal compound, including cellulose-feather protein hydrogel, in fibre
Nano-metal particle is adsorbed with inside dimension element-feather protein hydrogel, the load capacity of nano-metal particle is 21.7-35.25, single
Position：Mg/g, the cellulose-feather protein hydrogel are the cellulose of ion liquid dissolving and the feather of ion liquid dissolving
Albumen is mixed to prepare.
2. a kind of preparation method of cellulose-feather protein hydrogel nano metal compound, including：
Stalk after processing prepares dissolving stalk cellulose step with ion liquid dissolving；
Feather after processing prepares dissolving feather protein step with ion liquid dissolving；
Dissolving stalk cellulose is mixed with the nonmagnetic/cellulose that is magnetic-feather protein hydrogel with dissolving feather protein and walks
Suddenly；
Nonmagnetic/the cellulose that is magnetic-feather protein hydrogel absorption heavy metal ion, the heavy metal being adsorbed in hydrogel sphere
Ion conversion is nano metal step, obtains the nonmagnetic/cellulose that is magnetic-feather protein hydrogel nano metal compound.
3. the preparation method of cellulose according to claim 2-feather protein hydrogel nano metal compound, its feature
It is, the stalk after the processing prepares dissolving stalk cellulose step with ion liquid dissolving is：Stalk cleans baking
It is dry, crush, after sieving with HNO3Solution mixes, heating stirring reaction, and solid cleaning, drying, the sieving obtained after reaction is made
Stalk cellulose, stalk cellulose are mixed with ionic liquid, and heating stirring obtains dissolving stalk cellulose.
4. the preparation method of cellulose according to claim 3-feather protein hydrogel nano metal compound, its feature
It is, the stalk is wheat stalk or maize straw, and the drying temperature of stalk is 65~80 DEG C, and it is 90-110 to cross grit number
Mesh, HNO3The mass percent of solution is 5%-15%, stalk and HNO3The mass ratio of solution is 1：(40-60), heating stirring temperature
Spend for 100-120 DEG C, mixing time 6-10h；The ionic liquid is 1- butyl -3- methylimidazole villaumites (B [MIMCl])
Or 1- pi-allyl -3- methylimidazole villaumites (A [MIMCl]), the mass ratio of stalk cellulose and ionic liquid is 3-10：100, it is molten
It is 90-110 DEG C to solve stalk cellulose heating-up temperature, mixing time 6-10h.
5. the preparation method of cellulose according to claim 2-feather protein hydrogel nano metal compound, its feature
It is, the feather after the processing prepares dissolving feather protein step with ion liquid dissolving is：Feather cleans drying, powder
It is broken, obtain crushing feather, crush feather and mixed with ionic liquid with ionic liquid, heating stirring obtains dissolving feather protein；Institute
The feather stated is chicken feather or duck feather, and feather drying temperature is 55~70 DEG C, dissolves the ionic liquid used in feather and dissolving
The ionic liquid of stalk cellulose is identical, and the mass ratio of feather and ionic liquid is 1-7：100, dissolving feather heating-up temperature is
120-140 DEG C, mixing time 5-8h.
6. the preparation method of cellulose according to claim 2-feather protein hydrogel nano metal compound, its feature
It is, the dissolving stalk cellulose is mixed with the nonmagnetic/cellulose that is magnetic-feather protein water with dissolving feather protein
Gel step is：Dissolving stalk cellulose is uniformly mixed with dissolving feather protein, and obtained mixed liquor instills deionized water dropwise
Middle immersion, obtains nonmagnetic cellulose-feather protein hydrogel；Fe is added in nonmagnetic cellulose-feather protein hydrogel2+With
Fe3+Mixed solution in concussion absorption be placed in NaOH solution, clean, obtain magnetic cellulose-feather protein water-setting
Glue.
7. the preparation method of cellulose according to claim 6-feather protein hydrogel nano metal compound, its feature
It is, the immersion is is placed in water immersion and certain interval of time changes a water, by ionic liquid displacement into water, immersion
Interval time is 6-10h, and soaking time is 3 days, and deionized water collects after immersion, and evaporation recycling ionic liquid makes for circulation
It it is 60-80 DEG C with evaporation recovered temperature；Dissolving stalk cellulose with dissolving the mass ratio that feather protein mixes is：(5-10):(1-
3)；Fe2+And Fe3+Mixed solution in Fe2+With Fe3+Molar ratio be 1:1.5-3, Fe2+With Fe3+Concentration be 0.4-
0.7mol/L, concussion adsorption time are 10-30h, and the preferable adsorption time that shakes is 8-12h；Concussion absorption is placed on concentration and is
In the NaOH solution of 0.4-0.7mol/L.
8. the preparation method of cellulose according to claim 2-feather protein hydrogel nano metal compound, its feature
It is, the nonmagnetic/cellulose that is magnetic-feather protein hydrogel absorption heavy metal ion is specially：It is nonmagnetic/to have magnetic
Property cellulose-feather protein hydrogel be respectively placed in heavy metal ion solution, at ambient temperature concussion absorption 10-30h, inhale
Cleaned after the completion of attached with deionized water and remove unadsorbed heavy metal ion.
9. the preparation method of cellulose according to claim 8-feather protein hydrogel nano metal compound, its feature
It is, the heavy metal ion is copper ion, nickel ion；Preferably, the concentration of the heavy metal ion solution is 50-
2000mg/L, more preferably 1500-2000mg/L；Adsorption time is 12-24h；The heavy metal being adsorbed in hydrogel sphere
Ion conversion is specially for nano metal：Nonmagnetic/the hydrogel sphere that is magnetic for having adsorbed heavy metal ion is placed in sodium borohydride
0.5-2h is continuously stirred in solution at ambient temperature, the heavy metal ion being adsorbed in hydrogel sphere is converted into nanogold
Belong to, obtain the nonmagnetic/cellulose that is magnetic-feather protein hydrogel nano metal compound；Preferably, the sodium borohydride
The concentration of solution is 0.1-2g/L, it is preferred that the concentration of sodium borohydride solution is 0.2-1.2g/L；Nonmagnetic/be magnetic water-setting
The ratio between the quality of glue nano metal compound and the volume of sodium borohydride solution are 1:100.
A kind of 10. application of cellulose-feather protein hydrogel nano metal compound, for degrading nitrobenzene formic acid, to nitre
Base phenol, chloramphenicol or methylene blue pollutant；Biodegrading process is specific as follows：By hydrogel nano metal compound be placed in containing
In the solution of pollutant, and the NaBH added in the solution4, catalyzing and degrading pollutant under agitation, degradation temperature 20-
40℃；The concentration of pollutant is 25-125mg/L；Preferably, the addition of hydrogel nano metal compound is：Contain per 500mL
The solution for having pollutant adds hydrogel nano metal compound 0.5g-1.0g；NaBH4Addition be：0.2g-0.5g.
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