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 PDF

Info

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
Authority
CN
China
Prior art keywords
magnetic
charcoal
sorbing
aqueous solution
modified magnetic
Prior art date
Application number
CN201410581368.1A
Other languages
Chinese (zh)
Other versions
CN104258823A (en
Inventor
杨宝山
许世鹏
王惠
Original Assignee
济南大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 济南大学 filed Critical 济南大学
Priority to CN201410581368.1A priority Critical patent/CN104258823B/en
Publication of CN104258823A publication Critical patent/CN104258823A/en
Application granted granted Critical
Publication of CN104258823B publication Critical patent/CN104258823B/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/24Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002Solid 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
    • B01J20/28009Magnetic properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054Solid 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
    • B01J20/28057Surface area, e.g. B.E.T specific surface area
    • B01J20/28059Surface area, e.g. B.E.T specific surface area being less than 100 m2/g
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/288Treatment 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

A kind of modified magnetic charcoal sorbing material and application thereof

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.
CN201410581368.1A 2014-10-27 2014-10-27 A kind of modified magnetic charcoal sorbing material and application thereof CN104258823B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410581368.1A CN104258823B (en) 2014-10-27 2014-10-27 A kind of modified magnetic charcoal sorbing material and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410581368.1A CN104258823B (en) 2014-10-27 2014-10-27 A kind of modified magnetic charcoal sorbing material and application thereof

Publications (2)

Publication Number Publication Date
CN104258823A CN104258823A (en) 2015-01-07
CN104258823B true CN104258823B (en) 2016-03-30

Family

ID=52150471

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410581368.1A CN104258823B (en) 2014-10-27 2014-10-27 A kind of modified magnetic charcoal sorbing material and application thereof

Country Status (1)

Country Link
CN (1) CN104258823B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07256239A (en) * 1992-06-26 1995-10-09 Kuraray Chem Corp Cartridge for water purifier
CN101502789A (en) * 2009-01-22 2009-08-12 上海交通大学 Method for preparing magnetic active carbon composite material for water processing

Also Published As

Publication number Publication date
CN104258823A (en) 2015-01-07

Similar Documents

Publication Publication Date Title
Feng et al. Water-stable metal-organic frameworks for aqueous removal of heavy metals and radionuclides: A review
Awual et al. Ultimate selenium (IV) monitoring and removal from water using a new class of organic ligand based composite adsorbent
Yan et al. Magnetic biochar decorated with ZnS nanocrytals for Pb (II) removal
Ghaedi et al. Application of central composite design for simultaneous removal of methylene blue and Pb2+ ions by walnut wood activated carbon
Song et al. Simultaneous removal of U (VI) and humic acid on defective TiO2− x investigated by batch and spectroscopy techniques
Heidari et al. Adsorptive removal of CO2 on highly microporous activated carbons prepared from Eucalyptus camaldulensis wood: effect of chemical activation
Nethaji et al. Preparation and characterization of corn cob activated carbon coated with nano-sized magnetite particles for the removal of Cr (VI)
Wang et al. Nanomaterials as sorbents to remove heavy metal ions in wastewater treatment
Božić et al. Adsorption of heavy metal ions by beech sawdust–Kinetics, mechanism and equilibrium of the process
Liu et al. Mesoporous carbon stabilized MgO nanoparticles synthesized by pyrolysis of MgCl2 preloaded waste biomass for highly efficient CO2 capture
Homagai et al. Adsorption behavior of heavy metals onto chemically modified sugarcane bagasse
Fasfous et al. Uranium (VI) sorption by multiwalled carbon nanotubes from aqueous solution
Umeno et al. Preparation and adsorptive properties of membrane-type adsorbents for lithium recovery from seawater
Huang et al. Adsorption of tetracycline and ciprofloxacin on activated carbon prepared from lignin with H3PO4 activation
Khani et al. Equilibrium, kinetic and thermodynamic study of the biosorption of uranium onto Cystoseria indica algae
Ding et al. Biosorption of aquatic cadmium (II) by unmodified rice straw
Wang et al. Removal of uranium (VI) ion from aqueous solution by SBA-15
Gottipati et al. Preparation of microporous activated carbon from Aegle Marmelos fruit shell and its application in removal of chromium (VI) from aqueous phase
Nunell et al. Nitrate uptake improvement by modified activated carbons developed from two species of pine cones
Zhang et al. Kinetics and equilibrium studies from the methylene blue adsorption on diatomite treated with sodium hydroxide
Kumar et al. Equilibrium and kinetic studies for the biosorption system of copper (II) ion from aqueous solution using Tectona grandis Lf leaves powder
Biswas et al. Effective removal and recovery of antimony using metal-loaded saponified orange waste
Nam et al. Mercury (II) adsorption from wastewaters using a thiol functional adsorbent
Lu et al. Influence of the pore structure and surface chemical properties of activated carbon on the adsorption of mercury from aqueous solutions
Pang et al. Biosorption of uranium (VI) from aqueous solution by dead fungal biomass of Penicillium citrinum

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant