CN104258823B - A kind of modified magnetic charcoal sorbing material and application thereof - Google Patents
A kind of modified magnetic charcoal sorbing material and application thereof Download PDFInfo
- Publication number
- CN104258823B CN104258823B CN201410581368.1A CN201410581368A CN104258823B CN 104258823 B CN104258823 B CN 104258823B CN 201410581368 A CN201410581368 A CN 201410581368A CN 104258823 B CN104258823 B CN 104258823B
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- CN
- China
- Prior art keywords
- magnetic
- charcoal
- sorbing
- aqueous solution
- modified magnetic
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- 239000003610 charcoal Substances 0.000 title claims abstract description 48
- 239000000463 materials Substances 0.000 title claims abstract description 28
- 229910001431 copper ion Inorganic materials 0.000 claims abstract description 21
- JPVYNHNXODAKFH-UHFFFAOYSA-N cu2+ Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims abstract description 21
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- 239000003463 adsorbents Substances 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium Chemical compound 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[Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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[C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000536 complexating Effects 0.000 description 1
- 238000010668 complexation reactions Methods 0.000 description 1
- 238000007796 conventional methods Methods 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering processes Methods 0.000 description 1
- 239000000696 magnetic materials Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 methods Methods 0.000 description 1
- 230000002265 prevention Effects 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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28009—Magnetic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—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 surface properties or porosity
- B01J20/28057—Surface area, e.g. B.E.T specific surface area
- B01J20/28059—Surface area, e.g. B.E.T specific surface area being less than 100 m2/g
-
- 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
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
Abstract
The invention discloses a kind of modified magnetic charcoal sorbing material and application thereof, this sorbing material is for raw material with agricultural wastes maize straw, by composing magnetic, carbonization, and obtain at its surface attachment shitosan coat, these sorbing material raw material sources are extensive, Stability Analysis of Structures, not easily block, not only to representative heavy metal pollutant-cadmium ion and copper ion in water, there is higher removal efficiency, and be convenient to separation and recovery and recycling, non-secondary pollution, achieve recycling, there is good environmental benefit and economic benefit.
Description
Technical field
The present invention relates to a kind of sorbing material, particularly relate to a kind of modified magnetic charcoal sorbing material and application thereof, belong to the Environmental capacity field of agricultural wastes recycling and heavy metal-polluted water.
Background technology
Owing to containing a large amount of discharges of cadmium, copper waste water in industrial and agricultural production process, the content of Heavy Metals in Water Environment is caused day by day to increase, serious threat, to the existence of the mankind, thus becomes the focus of China's water prevention and cure of pollution concern to the removal of representative heavy metal pollutant in water environment.
Charcoal, as a kind of emerging sorbing material, prepares the concern efficiently and being more and more subject to people of raw-material wide material sources, preparation method simple possible, adsorption capacity with it.But the recovery of charcoal after adsorption fouling thing is the difficult problem being difficult to capture always.The appearance of magnetic bio charcoal, improve the difficult problem that it causes secondary pollution in recovery, but because charcoal is for adsorption mechanism mainly charcoal surface and the complexing of heavy metal and the effect of co-precipitation of heavy metal, and modified charcoal surface, in hole all fill by magnetic material, cover, intercept the contact of heavy metal ion in charcoal surface and the aqueous solution, and then affect its surface complexation and co-precipitation.In order to enhanced biological charcoal is for the adsorption capacity of heavy metal again, the present invention is reacted by shitosan and magnetic bio charcoal, prepares modified magnetic charcoal sorbing material, to strengthen the adsorption capacity of magnetic bio charcoal to representative heavy metal pollutant in water.
Summary of the invention
The object of this invention is to provide a kind of modified magnetic charcoal sorbing material, this material is for raw material with agricultural wastes maize straw, by composing magnetic, carbonization, and obtain at its surface attachment shitosan coat, this sorbing material Stability Analysis of Structures, not easily blocks, high adsorption capacity, significantly improves the adsorption efficiency of representative heavy metal pollutant-cadmium ion and copper ion in water.
Another object of the present invention is the application providing above-mentioned modified magnetic charcoal sorbing material.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of modified magnetic charcoal sorbing material, is characterized in that, prepared by following steps:
1) 40gFeCl is taken 3.6H 2o is dissolved in 60ml deionized water, obtains FeCl 3the aqueous solution, to FeCl 3add biological material in the aqueous solution, stir, place 2h at 80 DEG C and compose magnetic;
2) living beings composing magnetic are placed in crucible, aluminium foil sealing is placed in Muffle furnace, and certain heating rate is warming up to 700 DEG C, and constant temperature keeps 3h, is cooled to room temperature, grinds, sieve, obtain magnetic bio charcoal;
3) getting 3g shitosan is dissolved in 100ml acetum, after fully dissolving, adds magnetic bio charcoal, stirs, dropwise drop in the NaOH aqueous solution, leaves standstill, and filters, gets wherein solid, deionized water rinsing, dries, obtains modified magnetic charcoal sorbing material.
The present invention is reacted by shitosan and magnetic bio charcoal, shitosan is covered in magnetic bio carbon surface, significantly strengthens the adsorption capacity of magnetic bio charcoal to cadmium ion in water and copper ion, this modified magnetic charcoal sorbing material Stability Analysis of Structures, not easily block, high adsorption capacity.
Described, biological material was the maize straw of 2mm sieve, FeCl 3.6H 2the mass ratio of O and biological material is 1:0.25.
Described, heating rate is 10 DEG C/min, and magnetic bio charcoal crosses 0.5-1mm sieve, and the mass ratio of shitosan and magnetic bio charcoal is 1:1.
Described, the concentration of acetum is the concentration of 2%, the NaOH aqueous solution is 1.2%, and time of repose is 24h.
The application of a kind of modified magnetic charcoal sorbing material in water in representative heavy metal pollutant removal.
Described, in water, representative heavy metal pollutant is cadmium ion or copper ion.
The specific area 39.87m of the sorbing material that the present invention obtains 2/ g, total pore size volume 2.018 × 10 -2cm 3/ g, micro pore volume 1.61 × 10 -2cm 3/ g, pore radius 0.557nm.
Beneficial effect of the present invention:
1. modified magnetic charcoal sorbing material Stability Analysis of Structures of the present invention, not easily blocks, high adsorption capacity, not only has higher removal efficiency to representative heavy metal pollutant-cadmium ion and copper ion in water, and is convenient to separation and recovery and recycling, non-secondary pollution.
2. raw material sources of the present invention is extensive, and with low cost, preparation method is simple.
3., after agricultural wastes maize straw being prepared into sorbing material, not only can alleviating its destruction to ecological environment, the cadmium ion in waste water and copper ion can also be adsorbed, achieve recycling, there is good environmental benefit and economic benefit.
Accompanying drawing explanation
Fig. 1 is the ESEM of charcoal prepared by conventional method;
Fig. 2 is the ESEM of magnetic bio charcoal prepared by the embodiment of the present invention 1;
Fig. 3 is the ESEM of modified magnetic charcoal sorbing material prepared by the embodiment of the present invention 1.
Detailed description of the invention
According to following embodiment, the present invention may be better understood.But those skilled in the art will readily understand, the content described by embodiment only for illustration of the present invention, and should can not limit the present invention described in detail in claims yet.
Embodiment 1
A kind of modified magnetic charcoal sorbing material, is obtained by following steps: take 40gFeCl 3.6H 2o is dissolved in 60ml deionized water and prepares FeCl 3the aqueous solution, adds wherein by the 10g maize straw after crossing 2mm sieve, stirs, place the attached magnetic of 2h at 80 DEG C; The living beings composing magnetic are placed in crucible, and aluminium foil sealing is placed in Muffle furnace and is warming up to 700 DEG C with the heating rate of 10 DEG C/min, and constant temperature keeps 3h, is cooled to room temperature, grinds, and crosses 0.7mm sieve, obtains magnetic bio charcoal; Getting 3g shitosan is dissolved in 100ml acetum (2%), after abundant dissolving, 3g magnetic bio charcoal is added in this solution, stirs, dropwise drop to 900mlNaOH(1.2%) in the aqueous solution, leave standstill, filter, get wherein solid, deionized water rinsing 5 times, dry, obtain the modified magnetic charcoal adsorbent of the present embodiment.
The specific area 39.87m of the sorbing material that the present embodiment obtains 2/ g, total pore size volume 2.018 × 10 -2cm 3/ g, micro pore volume 1.61 × 10 -2cm 3/ g, pore radius 0.557nm.
Measuring concentration is respectively 40mg/l cadmium ion and copper ion solution 50ml, the 0.05g magnetic bio charcoal that the present embodiment is obtained adds in cadmium ion and copper ion solution respectively, shake through 24h, Atomic absorption is utilized to measure cadmium ion residual in solution or the concentration of copper ion respectively, calculating cadmium ion clearance is 4.5%, and the clearance of copper ion is 3.2%.
Measuring concentration is respectively 40mg/l cadmium ion and copper ion solution 50ml, the 0.05g modified magnetic charcoal that the present embodiment is obtained adds in cadmium ion and copper ion solution respectively, shake through 24h, Atomic absorption is utilized to measure cadmium ion residual in solution or the concentration of copper ion respectively, calculating cadmium ion clearance is 99.3%, and the clearance of copper ion is 99.5%.
The removal experiment of cadmium ion and copper ion
The modified magnetic charcoal that selected embodiment 1 obtains is as experimental group, the modified magnetic charcoal that embodiment 1 obtains as a control group, measuring concentration is respectively 40mg/l, each 2 parts of 80mg/l and 180mg/l cadmium-ion solution, measuring concentration is respectively 40mg/l, each 2 parts of 80mg/l and 180mg/l copper ion solution, in the cadmium ion respectively charcoal of experimental group and control group being joined variable concentrations or copper ion solution, shake through 24h, Atomic absorption is utilized to measure cadmium ion residual in solution or the concentration of copper ion respectively, calculate the clearance of cadmium ion and copper ion, result is as shown in table 1.
Table 1 ion remaval rate test result
As shown in Table 1, in the cadmium ion or copper ion solution of variable concentrations, the clearance of experimental group is all apparently higher than control group.
Claims (2)
1. a modified magnetic charcoal sorbing material, is characterized in that, is prepared by following steps:
1) 40gFeCl is taken
3.6H
2o is dissolved in 60ml deionized water, obtains FeCl
3the aqueous solution, to FeCl
3add biological material in the aqueous solution, stir, place 2h at 80 DEG C and compose magnetic;
Described biological material was the maize straw of 2mm sieve, described FeCl
3.6H
2the mass ratio of O and biological material is 1:0.25;
2) living beings composing magnetic are placed in crucible, aluminium foil sealing is placed in Muffle furnace, and certain heating rate is warming up to 700 DEG C, and constant temperature keeps 3h, is cooled to room temperature, grinds, sieve, obtain magnetic bio charcoal;
Described heating rate is 10 DEG C/min, and described magnetic bio charcoal crosses 0.5-1mm sieve;
3) getting 3g shitosan is dissolved in 100ml acetum, after fully dissolving, adds magnetic bio charcoal, stirs, dropwise drop in the NaOH aqueous solution, leaves standstill, and filters, gets wherein solid, deionized water rinsing, dries, obtains modified magnetic charcoal sorbing material;
The concentration of described acetum is 2%, and the mass ratio of described shitosan and magnetic bio charcoal is 1:1, and the concentration of the described NaOH aqueous solution is 1.2%, and described time of repose is 24h.
2. an application for modified magnetic charcoal sorbing material according to claim 1, is characterized in that, the application of described modified magnetic charcoal sorbing material in water in representative heavy metal pollutant removal;
In described water, representative heavy metal pollutant is cadmium ion or copper ion.
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| CN201410581368.1A CN104258823B (en) | 2014-10-27 | 2014-10-27 | A kind of modified magnetic charcoal sorbing material and application thereof |
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| CN104787831A (en) * | 2015-03-23 | 2015-07-22 | 湖南大学 | Method for removing hexavalent chromium in wastewater through magnetic adsorbent compounded by chitosan and magnetic biological carbon |
| CN104741083A (en) * | 2015-03-30 | 2015-07-01 | 安徽理工大学 | Method for preparing composite magnetic adsorption material |
| CN105013811B (en) * | 2015-07-02 | 2018-11-20 | 华南师范大学 | A kind of preparation and application of heavy metal chromium pollution soil remediation material |
| CN105056897B (en) * | 2015-07-16 | 2017-06-23 | 湖南大学 | Biological carbon composite of graphene oxide modification and its preparation method and application |
| CN105601022B (en) * | 2016-04-01 | 2017-12-29 | 武汉科技大学 | A kind of method that high-quality Nacl is reclaimed in the waste water from Desulphurization for Coal-fired Power Plant |
| CN105688840A (en) * | 2016-04-19 | 2016-06-22 | 肥东县柯文斌家庭农场 | Stereoscopically-acting water clarifying agent |
| CN105921119B (en) * | 2016-04-26 | 2018-10-30 | 南京中科水治理股份有限公司 | A kind of preparation method and applications of cotton stalk carbon ecology attachment base rod |
| CN107876020B (en) * | 2017-10-20 | 2020-10-27 | 福建省农业科学院农业生态研究所 | Adsorbent, preparation method and application thereof |
| CN107900092A (en) * | 2017-10-30 | 2018-04-13 | 常州大学 | A kind of arid area lead cadmium pollution soil repair system |
| CN107930596B (en) * | 2017-11-29 | 2020-12-15 | 烟台大学 | Modified magnetic biomass charcoal adsorption material and preparation method thereof |
| CN108380179A (en) * | 2018-03-09 | 2018-08-10 | 吉林建筑大学 | A method of removing water removal moderate resistance life element |
| CN109225135A (en) * | 2018-10-23 | 2019-01-18 | 山东省科学院生态研究所 | A kind of modification biological charcoal adsorbent material and preparation method thereof with to Pb in water body2+Removal application |
| CN109513424B (en) * | 2018-12-17 | 2020-06-30 | 中南大学 | Carbon/hydrotalcite composite adsorbent, preparation thereof, application of carbon/hydrotalcite composite adsorbent in heavy metal adsorption and regeneration method |
| CN110560008A (en) * | 2019-09-11 | 2019-12-13 | 广东华南环保产业技术研究院有限公司 | Persistent organic pollutant contaminated site repairing agent and preparation method thereof |
| CN111117814A (en) * | 2019-12-30 | 2020-05-08 | 湖南大学 | Magnetic carbon material for treating plastic surface pollutants and treatment method thereof |
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