CN106423099A - Preparation method of jute/polymer gel and application of jute/polymer gel as heavy metal adsorbent - Google Patents
Preparation method of jute/polymer gel and application of jute/polymer gel as heavy metal adsorbent Download PDFInfo
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- CN106423099A CN106423099A CN201610905840.1A CN201610905840A CN106423099A CN 106423099 A CN106423099 A CN 106423099A CN 201610905840 A CN201610905840 A CN 201610905840A CN 106423099 A CN106423099 A CN 106423099A
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- Prior art keywords
- corchorus olitorius
- polymer gel
- jute
- preparation
- heavy metal
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- 229920000642 polymer Polymers 0.000 title claims abstract description 45
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 235000011777 Corchorus aestuans Nutrition 0.000 title abstract description 51
- 235000010862 Corchorus capsularis Nutrition 0.000 title abstract description 51
- 239000003463 adsorbent Substances 0.000 title abstract description 18
- 240000000491 Corchorus aestuans Species 0.000 title abstract description 16
- 238000001179 sorption measurement Methods 0.000 claims abstract description 26
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000178 monomer Substances 0.000 claims abstract description 18
- 150000002500 ions Chemical class 0.000 claims abstract description 13
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 11
- WLZRMCYVCSSEQC-UHFFFAOYSA-N cadmium(2+) Chemical compound [Cd+2] WLZRMCYVCSSEQC-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000006185 dispersion Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 6
- 229910001431 copper ion Inorganic materials 0.000 claims abstract description 4
- 229910001437 manganese ion Inorganic materials 0.000 claims abstract description 4
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims abstract description 3
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910001430 chromium ion Inorganic materials 0.000 claims abstract description 3
- 244000227473 Corchorus olitorius Species 0.000 claims description 87
- 235000010206 Corchorus olitorius Nutrition 0.000 claims description 87
- 239000000243 solution Substances 0.000 claims description 19
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000002250 absorbent Substances 0.000 claims description 12
- 230000002745 absorbent Effects 0.000 claims description 12
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 8
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- RVPVRDXYQKGNMQ-UHFFFAOYSA-N lead(2+) Chemical compound [Pb+2] RVPVRDXYQKGNMQ-UHFFFAOYSA-N 0.000 claims description 6
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 5
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 claims description 5
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 4
- 239000003431 cross linking reagent Substances 0.000 claims description 4
- 239000012467 final product Substances 0.000 claims description 4
- 239000003999 initiator Substances 0.000 claims description 4
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 4
- 235000019394 potassium persulphate Nutrition 0.000 claims description 4
- WAEMQWOKJMHJLA-UHFFFAOYSA-N Manganese(2+) Chemical compound [Mn+2] WAEMQWOKJMHJLA-UHFFFAOYSA-N 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 3
- 229920002125 Sokalan® Polymers 0.000 abstract description 33
- 239000000463 material Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000002351 wastewater Substances 0.000 abstract 1
- 240000004792 Corchorus capsularis Species 0.000 description 35
- 238000010521 absorption reaction Methods 0.000 description 29
- 239000004584 polyacrylic acid Substances 0.000 description 25
- 229910052793 cadmium Inorganic materials 0.000 description 15
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 15
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 14
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 14
- 229910052804 chromium Inorganic materials 0.000 description 14
- 239000011651 chromium Substances 0.000 description 14
- 239000010949 copper Substances 0.000 description 14
- 239000011701 zinc Substances 0.000 description 14
- 229910052725 zinc Inorganic materials 0.000 description 14
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 13
- 229910052802 copper Inorganic materials 0.000 description 13
- 229910052748 manganese Inorganic materials 0.000 description 13
- 239000011572 manganese Substances 0.000 description 13
- 229920002401 polyacrylamide Polymers 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000843 powder Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VAZSKTXWXKYQJF-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)OOS([O-])=O VAZSKTXWXKYQJF-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- -1 Vermiculitum Chemical compound 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009920 chelation Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000010814 metallic waste Substances 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003911 water pollution 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
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
- B01J20/265—Synthetic macromolecular compounds modified or post-treated polymers
-
- 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
- B01J20/28047—Gels
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
- B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
Abstract
The invention discloses a preparation method of jute/polymer gel and an application of the jute/polymer gel as a heavy metal adsorbent. The preparation method is characterized by adding acrylic acid polymeric monomers to jute aqueous dispersion to carry out polymerization reaction, thus obtaining the jute/polymer gel. The preparation method has the beneficial technical effects that by modifying jute with the acrylic acid polymers, the heavy metal adsorption capacity of the jute material can be effectively improved, good mechanical properties can be obtained and the jute material can be recycled; the prepared jute/polymer gel has good adsorption effects on lead ions, cadmium ions, chromium ions, zinc ions, copper ions, manganese ions, and the like in water as a heavy metal adsorbent and can be widely applied to treatment of heavy metal polluted wastewater.
Description
Technical field
The present invention relates to a kind of preparation of heavy metal absorbent, more particularly to a kind of preparation of Corchorus olitorius L./polymer gel and
Which belongs to water pollution processing technology field as the application of heavy metal absorbent.
Background technology
Heavy metal water body pollution has badly influenced human health and ecological safety.Therefore, heavy metal waste water is net
Change is processed has become one of problem demanding prompt solution in environmental conservation.Absorption method is important handss for processing heavy metal pollution
Section, existing heavy metal absorbent has inorganic adsorbing material such as activated carbon, Vermiculitum, bentonite etc., organic adsorption material fibre at present
Dimension element and its modified product, shitosan etc..There is heavy metal adsorption limited capacity, be difficult to reuse or become in these adsorbing materials
The shortcomings of this is high.
Corchorus olitorius L. is a kind of abundance, cheap Renewable resource.Containing abundant-OH in Corchorus olitorius L. especially Folium corchori
With-NH2Deng group, there is to metal ion certain chelation.But single Corchorus olitorius L. is used as adsorbent, show as in water gluing
Thick shape, functional group is difficult to abundant exposure, and is difficult to regeneration, causes its application to be limited to.
Content of the invention
For the defect that Corchorus olitorius L. in prior art is present as heavy-metal adsorption material, first purpose of the present invention is intended to
A kind of method for carrying out composite modified acquisition Corchorus olitorius L./polymer gel to Corchorus olitorius L. by acrylic polymer, the method are provided
The absorbability of Corchorus olitorius L. material heavy metal can be effectively improved, and good mechanical performance can be obtained, so that Corchorus olitorius L. material is weighed
Multiple utilization.
Second object of the present invention is to be to provide application of the Corchorus olitorius L./polymer gel as heavy metal absorbent, right
The heavy metal ion such as lead, cadmium, chromium, zinc, copper, manganese in aqueous solution show good removal effect, and adsorbent can be reclaimed
And reuse.
In order to realize above-mentioned technical purpose, the invention provides a kind of preparation method of Corchorus olitorius L./polymer gel, the method
It is acrylic monomer to be added in Corchorus olitorius L. aqueous dispersions polyreaction is carried out, obtains final product.
Technical scheme is it is critical only that using acrylic polymer (as polyacrylic acid PAA, polymethylacrylic acid
PMA or polyacrylamide (PAAM) etc.) Corchorus olitorius L. is carried out In-situ reaction formed Corchorus olitorius L./polymer gel composite, the Corchorus olitorius L./
Polymer gel has good water permeability, the adsorption site of Corchorus olitorius L. can be made to be exposed in aqueous systems, be conducive in solution
Metal ion can be quickly be diffused into inside gel, make Corchorus olitorius L. heavy metal ion have a more preferable adsorption effect, and Corchorus olitorius L. be logical
Preferable mechanical performance can be obtained after crossing polymer modification, be conducive to which to reclaim and reuse.
Preferred scheme, Corchorus olitorius L. includes at least one of the bar of Corchorus olitorius L., branch, leaf.Most preferably Folium corchori.Many experiments table
Bright Folium corchori contains more active groups, and the chelating being more beneficial for the heavy metal ion in solution, with Folium corchori as Corchorus olitorius L.
The absorbability of the Corchorus olitorius L. that material is obtained/polymer gel heavy metal is higher than with jute stalk or branch as answering that Corchorus olitorius L. material is obtained
Condensation material.
Preferred scheme, acrylic monomer includes at least one of acrylic acid, methacrylic acid, acrylamide.
More preferably acrylic acid.The polyacrylic acid (PAA) for being prepared using acrylic acid, methacrylic acid, acrylamide or polymethyl
Sour (PMA) or polyacrylamide (PAAM) or their copolymer have preferable gelling performance.And shown by many experiments,
The absorption property of the Corchorus olitorius L./polymer gel heavy metal for being prepared with acroleic acid polymerization monomer is a little higher than with methacrylic acid or third
The absorption property of Corchorus olitorius L./polymer gel heavy metal prepared by acrylamide polymerized monomer.
Preferred scheme, the acrylic monomer is 1～10: 1～15 with the mass ratio of Corchorus olitorius L.；Mass ratio optimum
Elect 1: 1～5 as.Many experiments show：Polymer monomer and the mass ratio of Corchorus olitorius L. can reach optimal in the range of 1: 1～5
Implementation result, if polymer monomer is more than 1: 0.5 with the mass ratio of Corchorus olitorius L., mechanical performance increases, but absorption property declines
Substantially；If polymer monomer is less than 1: 7 with the mass ratio of Corchorus olitorius L., absorption property is not significantly improved, but mechanical performance then has relatively
Big decline.
Preferred scheme, the polyreaction with Ammonium persulfate. (APS) and/or potassium peroxydisulfate (PPS) as initiator, with N,
N'- methylene-bisacrylamide (MBA) is cross-linking agent, and polymeric reaction temperature is 55 DEG C～65 DEG C.
Preferred scheme, polymerization reaction time is 3～6 hours.
Preferred scheme, Corchorus olitorius L. aqueous dispersions are obtained by following methods：After Corchorus olitorius L. is soaked in NaOH solution, adopt
HCl solution is adjusted to neutrality, obtains final product Corchorus olitorius L. aqueous dispersions.By alkali process acid neutralization again, increase the active group on Corchorus olitorius L. surface,
Be conducive to which to disperse in water, be simultaneously also beneficial to improve its absorption property.
The concrete preparation method of the Corchorus olitorius L./polymer gel of the present invention is as follows：By acrylic acid (AA), methacrylic acid (MA)
And/or acrylamide (AAM) monomer is added in Corchorus olitorius L. (Jute) aqueous dispersions, the mass ratio of wherein monomer and Corchorus olitorius L. is 1～
10: 1～15, using Ammonium persulfate. and/or potassium peroxydisulfate as initiator, with N, N'- methylene-bisacrylamide for cross-linking agent,
Stir 3～6 hours at 55 DEG C～65 DEG C, obtain Corchorus olitorius L./polymer gel (Jute/PAA or Jute/PMA or Jute/PAAM).
Present invention also offers a kind of application of Corchorus olitorius L./polymer gel as heavy metal absorbent, by Corchorus olitorius L./polymer
Gel is used for the heavy metal ion in adsorption aqueous solution.
Preferred scheme, heavy metal ion is included in lead ion, cadmium ion, chromium ion, zinc ion, copper ion, manganese ion
At least one.
Preferred scheme, Corchorus olitorius L./polymer gel concentration in aqueous is 0.1～5g L-1, preferably 0.5～
1.5g·L-1.Concentration of heavy metal ion 10～600mg L in aqueous solution-1.The temperature of aqueous solution is 10～40 DEG C, typically exists
Under room temperature.
In technical scheme, Corchorus olitorius L./polymer gel is applied in adsorption aqueous solution as heavy metal absorbent
Heavy metal ion, such as lead, cadmium, chromium, zinc, copper and manganese plasma all have good removal effect, especially Jute/PAA adsorbent
508 and 383mg/g may be up to respectively to the adsorbance of lead and cadmium ion, higher than true yellow fiber crops absorption of the adsorbent to lead and cadmium ion
Amount, meanwhile, Corchorus olitorius L./polymer gel possesses good mechanical performance, can reclaim, and reuse.
Hinge structure, the Advantageous Effects that technical solution of the present invention is brought：
Technical scheme is first using polyacrylic acid (PAA) or polymethylacrylic acid (PMA) or polyacrylamide
(PAAM) polymer carries out the Corchorus olitorius L./polymer gel of composite modified formation to Corchorus olitorius L., and the gel of formation has good water and oozes
Permeability, can make the adsorption site of Corchorus olitorius L. be exposed in aqueous systems, be conducive to the metal ion in solution to be diffused rapidly in gel
Portion, makes Corchorus olitorius L. heavy metal ion have more preferable adsorption effect, and modification of the Corchorus olitorius L. by polymer, with preferable machinery
Performance, is conducive to reclaiming and reuses.With Jute/PAA or Jute/PMA or Jute/PAAM as adsorbent in aqueous solution
Lead, cadmium, chromium, zinc, copper and manganese plasma all have good removal effect, especially suction of the Jute/PAA adsorbent to lead and cadmium ion
Attached amount may be up to 508 and 383mg/g respectively, higher than true yellow fiber crops adsorbent to lead and the adsorbance of cadmium ion.
Description of the drawings
【Fig. 1】Photo for Corchorus olitorius L./polymer gel Jute/PAA；
【Fig. 2】Recycle to lead and the adsorption effect figure of cadmium for Corchorus olitorius L./polymer gel Jute/PAA.
Specific embodiment
Following examples are further intended to describe present invention in detail, rather than to the further of the scope of the present invention
Limit.
Embodiment 1
(1) Corchorus olitorius L. pretreatment
Corchorus olitorius L. tree is separated by bar, branch, leaf, and natural sunlight is dried, and is then crushed with pulverizer standby.
(2) prepared by Folium corchori/carbopol gel (Jute (leaf)/PAA)
Corchorus olitorius L. solution by 100mL containing 20wt% (dissolves Folium corchori powder with NaOH, Ran Houyou in a heated condition
Solution is adjusted to neutrality by HCl), the acrylic monomerss of 20mL, 0.25mol% initiator A PS, 1.5mol% cross-linking agent MBA is (with third
The mol ratio of olefin(e) acid) mixed liquor be added to reaction bulb, sealing is put in 60 DEG C of water-bath and is reacted 5 hours, completes polymerization
Reaction, (polymer monomer is 1 with Corchorus olitorius L. mass ratio to obtain Jute (leaf)/PAA gel:1), i.e., heretofore described heavy metal
Adsorbent.The photo of Jute (leaf)/PAA heavy metal absorbent as shown in figure 1, in figure shows, Jute (leaf)/PAA heavy metal
Adsorbent has good mechanical flexibility and compression performance.
(3) measure of absorption property
Jute (leaf)/PAA is that adsorbent heavy metal lead, cadmium, chromium, zinc, copper and manganese ion carry out adsorption test.Heavy metal
The concentration of solution respectively 600,500,400 300 200 100 70 50,30,10mg.L-1, absorbent concentration is 1g.L-1,
Temperature is respectively 293K, 303K, 313K, and adsorption time is 2 hours.Simulation Langmuir adsorption isotherm surveys its adsorbance.
Jute (leaf)/PAA is to lead, cadmium, chromium, zinc, copper and manganese maximal absorptive capacity difference 508,383,301,282,266 and 243mg.g-1.
(4) test of adsorbent reusing
Jute (leaf)/PAA is the test that adsorbent heavy metal lead and cadmium ion carry out adsorbent reusing.Lead and
The concentration of cadmium ion is 400mg.L-1, absorbent concentration is 1g.L-1, temperature is that adsorption time is 2 hours 303K, each time.
Desorbing is carried out with the HCl solution of 0.1mol/L after the completion of adsorbing each time.As shown in Fig. 2 in first time adsorbs, adsorbent pair
Pb ion, the adsorption rate of Cd ion are respectively 96% and 83%.After five circulations, adsorption rate is still up to 93% He respectively
81%.As a result show, the adsorbent has good recycling performance.
Embodiment 2
(1) Corchorus olitorius L. pretreatment
With embodiment 1.
(2) prepared by Folium corchori/polymethyl acid gel (Jute (leaf)/PMA)
Acrylic acid (AA) in embodiment 1 is substituted with methacrylic acid (MA), remaining is with embodiment 1.
(3) measure of absorption property
Jute (leaf)/PMA substitutes Jute (leaf)/PAA, and remaining is with embodiment 1.Jute (leaf)/PMA to lead, cadmium, chromium, zinc,
Copper and manganese maximal absorptive capacity difference 492,377,289,276,263 and 239mg.g-1.
Embodiment 3
(1) Corchorus olitorius L. pretreatment
With embodiment 1.
(2) prepared by Folium corchori/polyacrylamide gel (Jute (leaf)/PAAM)
Acrylic acid (AA) in embodiment 1 is substituted with acrylamide (AAM), remaining is with embodiment 1.
(3) measure of absorption property
Jute (leaf)/PAAM substitutes Jute (leaf)/PAA, and remaining is with embodiment 1.Jute (leaf)/PAAM to lead, cadmium, chromium,
Zinc, copper and manganese maximal absorptive capacity difference 496,382,299,294,289 and 258mg.g-1.
Embodiment 4
(1) Corchorus olitorius L. pretreatment
With embodiment 1.
(2) prepared by Corchorus olitorius L. branch/carbopol gel (Jute (branch)/PAA)
Folium corchori in embodiment 1 is substituted with Corchorus olitorius L. branch, remaining is with embodiment 1.
(3) measure of absorption property
The condition determination of absorption property is with embodiment 1.Jute (branch)/PAA is to lead, cadmium, chromium, zinc, copper and manganese maximum adsorption
Amount difference 427,352,268,243,223 and 209mg.g-1.
Embodiment 5
(1) Corchorus olitorius L. pretreatment
With embodiment 1.
(2) prepared by jute stem/carbopol gel (Jute (bar)/PAA)
Folium corchori in embodiment 1 is substituted with jute stalk, remaining is with embodiment 1.
(3) measure of absorption property
The condition determination of absorption property is with embodiment 1.Jute (bar)/PAA is to lead, cadmium, chromium, zinc, copper and manganese maximum adsorption
Amount difference 398,339,247,216,204 and 188mg.g-1.
Embodiment 6
(1) Corchorus olitorius L. pretreatment
With embodiment 1.
(2) prepared by Folium corchori/carbopol gel (Jute (leaf)/PAA)
Polymer monomer in embodiment 1 and Corchorus olitorius L. mass ratio are changed to 1:0.5, remaining is with embodiment 1.
(3) measure of absorption property
The condition determination of absorption property is with embodiment 1.Jute (leaf)/PAA is to lead, cadmium, chromium, zinc, copper and manganese maximum adsorption
Amount difference 302,241,209,176,133 and 107mg.g-1.Compared with embodiment 1, absorption property declines substantially, and mechanical performance has
Improved.
Embodiment 7
(1) Corchorus olitorius L. pretreatment
With embodiment 1.
(2) prepared by Folium corchori/carbopol gel (Jute (leaf)/PAA)
Polymer monomer in embodiment 1 and Corchorus olitorius L. mass ratio are changed to 1:7, remaining is with embodiment 1.
(3) measure of absorption property
The condition determination of absorption property is with embodiment 1.Jute (leaf)/PAA is to lead, cadmium, chromium, zinc, copper and manganese maximum adsorption
Amount difference 512,387,321,293,273 and 254mg.g-1.Compared with embodiment 1, absorption property is slightly improved, but mechanical performance
Decline obvious.
Comparative example 1
(1) Corchorus olitorius L. pretreatment
With embodiment 1.
(2) the Folium corchori solution by 100mL containing 20wt% (makes Folium corchori in a heated condition with NaOH
Powder dissolves, and then by HCl, solution is adjusted to neutrality) it is directly used in heavy metal adsorption.
(3) measure of absorption property
The condition determination of absorption property is with embodiment 1.Folium corchori is to lead, cadmium, chromium, zinc, copper and manganese maximal absorptive capacity respectively
488th, 341,269,240,226 and 217mg.g-1.Compared with embodiment 1, absorption property has declined, while being difficult to repeat profit
With.
Comparative example 2
(1) Corchorus olitorius L. pretreatment
With embodiment 1.
(2) the Corchorus olitorius L. branch solution by 100mL containing 20wt% (makes jute stalk in a heated condition with NaOH
Powder dissolves, and then by HCl, solution is adjusted to neutrality) it is directly used in heavy metal adsorption.
(3) measure of absorption property
The condition determination of absorption property is with embodiment 1.Corchorus olitorius L. branch is to dividing to lead, cadmium, chromium, zinc, copper and manganese maximal absorptive capacity
Other 407,296,251,226,187 and 169mg.g-1.Compared with comparative example 1, absorption property has declined, and is equally difficult to repeat profit
With.
Comparative example 3
(1) Corchorus olitorius L. pretreatment
With embodiment 1.
(2) the jute stalk solution by 100mL containing 20wt% (makes jute stalk in a heated condition with NaOH
Powder dissolves, and then by HCl, solution is adjusted to neutrality) it is directly used in heavy metal adsorption.
(3) measure of absorption property
The condition determination of absorption property is with embodiment 1.Jute stalk is to dividing to lead, cadmium, chromium, zinc, copper and manganese maximal absorptive capacity
Other 354,272,215,186,146 and 114mg.g-1.Compared with comparative example 2, absorption property has declined, and is equally difficult to repeat profit
With.
Claims (10)
1. a kind of preparation method of Corchorus olitorius L./polymer gel, it is characterised in that：Acrylic monomer is added to Corchorus olitorius L. water
Polyreaction is carried out in dispersion liquid, obtain final product.
2. the preparation method of Corchorus olitorius L./polymer gel according to claim 1, it is characterised in that：Described Corchorus olitorius L. includes
At least one of the bar of Corchorus olitorius L., branch, leaf.
3. the preparation method of Corchorus olitorius L./polymer gel according to claim 1, it is characterised in that：Described acrylic compounds
Polymerized monomer includes at least one of acrylic acid, methacrylic acid, acrylamide.
4. the preparation method of the Corchorus olitorius L./polymer gel according to any one of claims 1 to 3, it is characterised in that：Described third
Olefin(e) acid Type of Collective monomer is 1～10: 1～15 with the mass ratio of Corchorus olitorius L..
5. the preparation method of Corchorus olitorius L./polymer gel according to claim 4, it is characterised in that：The acrylic polymer
The mass ratio for monomer being closed with Corchorus olitorius L. is 1: 1～5.
6. the preparation method of Corchorus olitorius L./polymer gel according to claim 1, it is characterised in that：The polyreaction
Condition is：With Ammonium persulfate. and/or potassium peroxydisulfate as initiator, with N, N'- methylene-bisacrylamide for cross-linking agent, polymerization is anti-
Temperature is answered for 55 DEG C～65 DEG C.
7. the preparation method of the Corchorus olitorius L./polymer gel according to claim 1 or 6, it is characterised in that：Polymerization reaction time
For 3～6 hours.
8. the preparation method of Corchorus olitorius L./polymer gel according to claim 1, it is characterised in that：Described Corchorus olitorius L. moisture
Dispersion liquid is obtained by following methods：After Corchorus olitorius L. is soaked in NaOH solution, neutrality is adjusted to using HCl solution, obtains final product Corchorus olitorius L. moisture
Dispersion liquid.
9. the preparation method described in any one of claim 1～8 obtains Corchorus olitorius L./polymer gel answering as heavy metal absorbent
With, it is characterised in that：For the heavy metal ion in adsorption aqueous solution.
10. Corchorus olitorius L./polymer gel according to claim 9 is used as the application of heavy metal absorbent, it is characterised in that：Institute
The heavy metal ion that states includes at least one in lead ion, cadmium ion, chromium ion, zinc ion, copper ion, manganese ion.
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