CN103657614B - Polystyrene based magnetic nano ferroferric oxide arsenic removal composite and preparation method thereof - Google Patents

Polystyrene based magnetic nano ferroferric oxide arsenic removal composite and preparation method thereof Download PDF

Info

Publication number
CN103657614B
CN103657614B CN201310732393.0A CN201310732393A CN103657614B CN 103657614 B CN103657614 B CN 103657614B CN 201310732393 A CN201310732393 A CN 201310732393A CN 103657614 B CN103657614 B CN 103657614B
Authority
CN
China
Prior art keywords
polystyrene
arsenic removal
preparation
ferroferric oxide
removal composite
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CN201310732393.0A
Other languages
Chinese (zh)
Other versions
CN103657614A (en
Inventor
江伟
陈旭斌
潘丙才
张全兴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing University
Original Assignee
Nanjing University
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 Nanjing University filed Critical Nanjing University
Priority to CN201310732393.0A priority Critical patent/CN103657614B/en
Publication of CN103657614A publication Critical patent/CN103657614A/en
Application granted granted Critical
Publication of CN103657614B publication Critical patent/CN103657614B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

The invention discloses a preparation method of a polystyrene based magnetic nano ferroferric oxide arsenic removal composite, which comprises the steps of taking water as a reaction solvent, mixing a styrene monomer and potassium persulfate for reaction for 12-24h under the shield of nitrogen and the stirring condition at 70-85 DEG C in a sealed container to form a polystyrene pellet, taking the water as the reaction solvent, bubbling and supplying nitrogen to deoxidize, then adding FeSO4.7H2O and FeCl3.6H2O, slowly dropwise adding ammonia water under the stirring condition till a pH (potential of hydrogen) value is 8, stopping dropwise adding, performing reaction for 30-120min under the stirring condition at 25-40 DEG C in the sealed container, performing magnetic separation on an obtained product, decantating and cleaning for several times, dialyzing to form colloid, anmely nanoscale magnetic Fe3O4, performing ultrasonic treatment on the nanoscale magnetic Fe3O4 colloid, dropwise adding into the polystyrene pellet under the stirring condition, after stirring and heterocoagulation, performing magnetic separation on an obtained product, decantating and cleaning for several times to form the composite.

Description

A kind of polystyrene-based magnetic nano ferroferric oxide arsenic removal composite and preparation method thereof
Technical field
The present invention relates to micro-A in a kind of absorption surrounding medium s(V) the high performance environments functional composite material of pollutant, particularly relates to the nucleocapsid arsenic removal composite that a kind of polystyrene is core, nano ferriferrous oxide is shell.
Background technology
Nanoscale Iron oxygen compound Fe 3o 4pay attention to widely because receive in arsenic-containing waste water process the high adsorption capacity of As.Particularly ferroferric oxide nano granules is owing to having magnetic, can realize the separation of adsorbent under magnetic field, has had a lot of relevant research work.The factor affecting Nanoscale Iron oxygen compound arsenic-adsorbing capacity is a lot, and wherein particle size is a very crucial factor.Reduce particle size, can the raising adsorption area of hundreds and thousands of times, increase dispersiveness in aqueous.There is job evaluation Fe 3o 4particle diameter finds as single dispersing Fe the impact (C.T.Yavuz, et.al.Science314 (2006) 964.) of arsenic-adsorbing capacity 3o 4particle diameter is when about 25nm, and maximum adsorption capacity is about 25mg/g, as reduction Fe 3o 4when particle diameter reaches 12nm, maximum adsorption capacity can reach more than 150mg/g.This shows that reducing particle size is improve an effective way of adsorbance.But these small-sized adsorption particles with in may encounter problems because magnetic field is directly proportional to particle size for the active force of particle, when the size of particles is too small, be not enough to overcome intergranular Brownian and move, Magneto separate just can not realize.Or need very high magnetic field to be separated, can raise the cost greatly like this.Such adsorbent stability and be easy to separation property and become a contradiction in aqueous.Develop a kind of adsorbent in raising nanometer Fe 3o 4while the adsorption capacity of materials adsorption arsenic, ensure that being again easy to separation in aqueous seems very important.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of polystyrene-based magnetic nano ferroferric oxide composite, this material improves the adsorption capacity of Magnetic nano iron oxygen granular absorption arsenic while keeping Separation of Solid and Liquid, reaches the efficient removal to arsenic in water.
The present invention also will provide the preparation method of above-mentioned polystyrene-based magnetic nano ferroferric oxide composite.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A preparation method for polystyrene-based magnetic nano ferroferric oxide arsenic removal composite, the method comprises the steps:
(1) synthesis of polystyrene sphere: in airtight container take water as reaction dissolvent, by styrene monomer and potassium peroxydisulfate mixing, at inert gas shielding, 70 ~ 85 DEG C, reaction 12 ~ 24h under stirring condition, obtains polystyrene sphere;
(2) nano-scale magnetic Fe 3o 4synthesis: in airtight container, take water as reaction dissolvent, bubbling leads to inert gas deoxygenation, then adds FeSO 4.7H 2o and FeCl 3.6H 2o, slowly drips ammoniacal liquor until pH value to 8, stops dripping under stirring condition, at 25 ~ 40 DEG C, reaction 30 ~ 120min under stirring condition, finally by the product Magneto separate of gained, for several times, dialysis 24 ~ 48h, the colloid of gained is nano-scale magnetic Fe in decantation cleaning 3o 4;
(3) synthesis of arsenic removal composite: the nano-scale magnetic Fe that step (2) is obtained 3o 4after the ultrasonic process of colloid, under agitation, drop in polystyrene sphere, after stirring 1 ~ 3h heterocoagulation, by the product Magneto separate of gained, decantation cleaning for several times, to obtain final product.
In step (1), add that quality is styrene monomer quality 0.12 ~ 0.5% of potassium peroxydisulfate.
In step (1), mixing speed is 100 ~ 200rmp.
In step (2), FeSO 4.7H 2o and FeCl 3.6H 2the reaction mol ratio of O is 1:1 ~ 1.5.
In step (2), mixing speed is 200 ~ 320rmp.
In step (2), the concentration of ammoniacal liquor is 5 ~ 15mol/L.
In step (2), the time that bubbling leads to inert gas deoxygenation is preferably 30 ~ 60min.
In step (1) and (2), described inert gas preferred nitrogen.
In step (1) and (2), take water as reaction dissolvent, the consumption of water, without particular provisions, as long as be enough to solubilizing reaction raw material, provides the reaction environment that liquid.
In step (3), ultrasonic treatment conditions are power 70 ~ 100w, frequency 20 ~ 60KHZ, and the duration is 3 ~ 20min.
In step (3), polystyrene sphere and nano-scale magnetic Fe 3o 4the mass ratio of colloid is 1:0.1 ~ 0.2.
In step (3), mixing speed is 300 ~ 500rmp.
The polystyrene-based magnetic nano ferroferric oxide arsenic removal composite that said method prepares is also within protection scope of the present invention.
Wherein, obtained polystyrene-based magnetic nano ferroferric oxide arsenic removal composite, it take polystyrene sphere as core, with nano-scale magnetic Fe 3o 4for shell, polystyrene sphere particle diameter is 500nm ~ 2um, and shell thickness is 20 ~ 100nm.
Beneficial effect: preparation method of the present invention has simple to operate, low cost and other advantages.Polystyrene-based magnetic nano ferroferric oxide arsenic removal composite prepared by the present invention has the following advantages: 1, kernel is polystyrene PS microballoon, and this makes the intensity of composite improve a lot; 2, the ferroferric oxide nano granules of area load is evenly distributed, and three is that material has high-specific surface area, is uniformly dispersed in waste water; 3, the dispersiveness in water has increased significantly, and this As (V) removed in waste water for its efficient adsorption lays a good foundation, and makes material have high arsenic A s(V) adsorption capacity and good stability, and be easy to Magneto separate recycling.
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:
The synthesis of polystyrene sphere: reaction vessel is sealed; under nitrogen protection; add 100ml distilled water; be heated to 70 DEG C; add styrene monomer 1g, mixing speed 160rmp, add 2.3mg potassium peroxydisulfate after stirring in reaction system; react 12h under constant temperature 70 DEG C of conditions, obtaining polystyrene sphere (being called for short PS bead) is 800nm.
Nano-scale magnetic Fe 3o 4synthesis: reactor is airtight, and bubbling leads to nitrogen deoxygenation 30min, then by the FeSO of 2.78g (0.01mol) 4.7H 2o and 3.244g (0.012mol) FeCl 3.6H 2o joins in reactor respectively, slowly drips the ammoniacal liquor of 5mol/L under 300rmp mechanical agitation, until pH value to 8, stops dripping, continues to react 120min under constant temperature 25 DEG C of conditions.Finally by the product Magneto separate of gained, for several times, dialysis 48h, the colloid of gained is Fe in decantation cleaning 3o 4, particle diameter is 30nm.
The synthesis of arsenic removal composite: get 0.2g Fe 3o 4nano-colloid particle is placed on ultrasonic 3min in ultrasonic device, ultrasonic power 100w, frequency 20KHZ, then under 300rmp mechanical agitation, by Fe 3o 4colloidal droplets dropwise drops in 1g polystyrene sphere, after stirring 1h, by heterocoagulation, finally obtains product P S-Fe 3o 4.
By the PS-Fe prepared 3o 4ultrasonic 10min, is then As (V) simulated wastewater of 50mg/L by every 100ml concentration, adds 0.05g sample, put into shaking table, and after constant temperature 25 DEG C absorption 24h, the adsorbance of material to As (V) is 100mg/g.
Embodiment 2:
The synthesis of polystyrene sphere: reaction vessel is sealed; under nitrogen protection; add 90ml distilled water; be heated to 70 DEG C; add styrene monomer 1g, mixing speed 200rmp, add 2.3mg potassium peroxydisulfate after stirring in reaction system; react 24h under constant temperature 70 DEG C of conditions, obtaining polystyrene sphere (being called for short PS bead) is 500nm.
Nano-scale magnetic Fe 3o 4synthesis: reactor is airtight, and bubbling leads to nitrogen deoxygenation 30min, then by the FeSO of 2.78g (0.01mol) 4.7H 2o and 3.5165g (0.013mol) FeCl 3.6H 2o joins in reactor respectively, slowly drips the ammoniacal liquor of 10mol/L, until pH value to 8 under 320rmp mechanical agitation, stop dripping, continue under constant temperature 25 DEG C of conditions, to react 120min, finally by the product Magneto separate of gained, for several times, dialysis 48h, the colloid of gained is Fe in decantation cleaning 3o 4, particle diameter is 20nm.
The synthesis of arsenic removal composite: get 0.1g Fe 3o 4nano-colloid particle is placed on ultrasonic 20min in ultrasonic device, ultrasonic power 90w, frequency 20KHZ, then under 350rmp mechanical agitation, by Fe 3o 4colloidal droplets dropwise drops in 1g polystyrene sphere, after stirring 3h, by heterocoagulation, finally obtains product P S-Fe 3o 4.
By the PS-Fe prepared 3o 4ultrasonic 10min, is then As (V) simulated wastewater of 50mg/L by every 100ml concentration, adds 0.05g sample, put into shaking table, and after constant temperature 25 DEG C absorption 24h, the adsorbance of material to As (V) is 150mg/g.
Embodiment 3:
The synthesis of polystyrene sphere: reaction vessel is sealed; under nitrogen protection; add 110ml distilled water; be heated to 85 DEG C; add styrene monomer 1g, mixing speed 100rmp, add 2.8mg potassium peroxydisulfate after stirring in reaction system; react 12h under constant temperature 85 DEG C of conditions, obtaining polystyrene sphere (being called for short PS bead) is 2 μm.
Nano-scale magnetic Fe 3o 4synthesis: reactor is airtight, and bubbling leads to nitrogen deoxygenation 30min, then by the FeSO of 2.78g (0.01mol) 4.7H 2o and 4.0575g (0.015mol) FeCl 3.6H 2o joins in reactor respectively, slowly drips the ammoniacal liquor of 15mol/L until pH value to 8 under 200rmp mechanical agitation, stops dripping, continues to react 30min under constant temperature 40 DEG C of conditions.Finally by the product Magneto separate of gained, for several times, dialysis 24h, the colloid of gained is Fe in decantation cleaning 3o 4, particle diameter is 100nm.
The synthesis of arsenic removal composite: get 0.2g Fe 3o 4nano-colloid particle is placed on ultrasonic 20min in ultrasonic device, ultrasonic power 100w, frequency 60KHZ, then under 300rmp mechanical agitation, by Fe 3o 4colloidal droplets dropwise drops in 1g polystyrene sphere, after stirring 3h, by heterocoagulation, finally obtains product P S-Fe 3o 4.
By the PS-Fe prepared 3o 4ultrasonic 10min, is then As (V) simulated wastewater of 50mg/L by every 100ml concentration, adds 0.05g sample, put into shaking table, and after constant temperature 25 DEG C absorption 24h, the adsorbance of material to As (V) is 80mg/g.
Embodiment 4:
The synthesis of polystyrene sphere: reaction vessel is sealed; under nitrogen protection; add 100ml distilled water; be heated to 85 DEG C; add styrene monomer 1g, mixing speed 180rmp, add 5mg potassium peroxydisulfate after stirring in reaction system; react 24h under constant temperature 85 DEG C of conditions, obtaining polystyrene sphere (being called for short PS bead) is 700nm.
Nano-scale magnetic Fe 3o 4synthesis: reactor is airtight, and bubbling leads to nitrogen deoxygenation 30min, then by the FeSO of 2.78g (0.01mol) 4.7H 2o and 3.244g (0.012mol) FeCl 3.6H 2o joins in reactor respectively, slowly drips the ammoniacal liquor of 5mol/L, until pH value to 8 under 250rmp mechanical agitation, stop dripping, continue to react 120min. finally by the product Magneto separate of gained under constant temperature 25 DEG C of conditions, decantation cleaning for several times, dialysis 24h, the colloid of gained is Fe 3o 4, particle diameter is 50nm.
The synthesis of arsenic removal composite: get 0.16g Fe 3o 4nano-colloid particle is placed on ultrasonic 20min in ultrasonic device, ultrasonic power 100w, frequency 20KHZ, then under 400rmp mechanical agitation, by Fe 3o 4colloidal droplets dropwise drops in 1g polystyrene sphere, after stirring 3h, by heterocoagulation, finally obtains product P S-Fe 3o 4.
By the PS-Fe prepared 3o 4ultrasonic 10min, is then As (V) simulated wastewater of 50mg/L by every 100ml concentration, adds 0.05g sample, put into shaking table, and after constant temperature 25 DEG C absorption 24h, the adsorbance of material to As (V) is 103mg/g.
Embodiment 5:
The synthesis of polystyrene sphere: reaction vessel is sealed; under nitrogen protection; add 100ml distilled water; be heated to 70 DEG C; add styrene monomer 5g, mixing speed 180rmp, add 10mg potassium peroxydisulfate after stirring in reaction system; react 24h under constant temperature 70 DEG C of conditions, obtaining polystyrene sphere (being called for short PS bead) is 600nm.
Nano-scale magnetic Fe 3o 4synthesis: reactor is airtight, and bubbling leads to nitrogen deoxygenation 30min, then by the FeSO of 2.78g (0.01mol) 4.7H 2o and 3.244g (0.012mol) FeCl 3.6H 2o joins in reactor respectively, slowly drips the ammoniacal liquor of 10mol/L under 300rmp mechanical agitation, until pH value to 8, stops dripping, continues to react 120min under constant temperature 35 DEG C of conditions.Finally by the product Magneto separate of gained, for several times, dialysis 48h, the colloid of gained is Fe in decantation cleaning 3o 4, particle diameter is 35nm.
The synthesis of arsenic removal composite: get 0.1g Fe 3o 4nano-colloid particle is placed on ultrasonic 10min in ultrasonic device, ultrasonic power 70w, frequency 40KHZ, then under 350rmp mechanical agitation, by Fe 3o 4colloidal droplets dropwise drops in 1g polystyrene sphere, after stirring 3h, by heterocoagulation, finally obtains product P S-Fe 3o 4.
By the PS-Fe prepared 3o 4ultrasonic 10min, is then As (V) simulated wastewater of 50mg/L by every 100ml concentration, adds 0.05g sample, put into shaking table, and after constant temperature 25 DEG C absorption 24h, the adsorbance of material to As (V) is 120mg/g.
Embodiment 6:
The synthesis of polystyrene sphere: reaction vessel is sealed; under nitrogen protection; add 100ml distilled water; be heated to 70 DEG C; add styrene monomer 3g, mixing speed 130rmp, add 5mg potassium peroxydisulfate after stirring in reaction system; react 24h under constant temperature 85 DEG C of conditions, obtaining polystyrene sphere (being called for short PS bead) is 1.2 μm.
Nano-scale magnetic Fe 3o 4synthesis: reactor is airtight, and bubbling leads to nitrogen deoxygenation 30min, then by the FeSO of 2.78g (0.01mol) 4.7H 2o and 2.705g (0.01mol) FeCl 3.6H 2o joins in reactor respectively, slowly drips the ammoniacal liquor of 5mol/L under 320rmp mechanical agitation, until pH value to 8, stops dripping, continues to react 60min under constant temperature 35 DEG C of conditions.Finally by the product Magneto separate of gained, for several times, dialysis 48h, the colloid of gained is Fe in decantation cleaning 3o 4, particle diameter is 25nm.
The synthesis of arsenic removal composite: get 0.125g Fe 3o 4nano-colloid particle is placed on ultrasonic 10min in ultrasonic device, ultrasonic power 100w, frequency 40KHZ, then under 350rmp mechanical agitation, by Fe 3o 4colloidal droplets dropwise drops in 1g polystyrene sphere, after stirring 3h, by heterocoagulation, finally obtains product P S-Fe 3o 4.
By the PS-Fe prepared 3o 4ultrasonic 10min, is then As (V) simulated wastewater of 50mg/L by every 100ml concentration, adds 0.05g sample, put into shaking table, and after constant temperature 25 DEG C absorption 24h, the adsorbance of material to As (V) is 86mg/g.
Embodiment 7:
The synthesis of polystyrene sphere: reaction vessel is sealed; under nitrogen protection; add 100ml distilled water; be heated to 70 DEG C; add styrene monomer 3g, mixing speed 140rmp, add 6.8mg potassium peroxydisulfate after stirring in reaction system; react 12h under constant temperature 70 DEG C of conditions, obtaining polystyrene sphere (being called for short PS bead) is 1.0 μm.
Nano-scale magnetic Fe 3o 4synthesis: reactor is airtight, and bubbling leads to nitrogen deoxygenation 30min, then by the FeSO of 2.78g (0.01mol) 4.7H 2o and 3.244g (0.012mol) FeCl 3.6H 2o joins in reactor respectively, slowly drips the ammoniacal liquor of 15mol/L under 270rmp mechanical agitation, until pH value to 8, stops dripping, continues to react 120min under constant temperature 30 DEG C of conditions.Finally by the product Magneto separate of gained, for several times, dialysis 48h, the colloid of gained is Fe in decantation cleaning 3o 4, particle diameter is 40nm.
The synthesis of arsenic removal composite: get 0.2g Fe 3o 4nano-colloid particle is placed on ultrasonic 10min in ultrasonic device, ultrasonic power 80w, frequency 60KHZ, then under 350rmp mechanical agitation, by Fe 3o 4colloidal droplets dropwise drops in 1g polystyrene sphere, after stirring 3h, by heterocoagulation, finally obtains product P S-Fe 3o 4.
By the PS-Fe prepared 3o 4ultrasonic 10min, is then As (V) simulated wastewater of 50mg/L by every 100ml concentration, adds 0.05g sample, put into shaking table, and after constant temperature 25 DEG C absorption 24h, the adsorbance of material to As (V) is 90mg/g.
Embodiment 8:
The synthesis of polystyrene sphere: reaction vessel is sealed; under nitrogen protection; add 100ml distilled water; be heated to 70 DEG C; add styrene monomer 2g, mixing speed 190rmp, add 3mg potassium peroxydisulfate after stirring in reaction system; react 24h under constant temperature 70 DEG C of conditions, obtaining polystyrene sphere (being called for short PS bead) is 560nm.
Nano-scale magnetic Fe 3o 4synthesis: reactor is airtight, and bubbling leads to nitrogen deoxygenation 30min, then by the FeSO of 2.78g (0.01mol) 4.7H 2o and 3.244g (0.012mol) FeCl 3.6H 2o joins in reactor respectively, slowly drips the ammoniacal liquor of 10mol/L under 300rmp mechanical agitation, until pH value to 8, stops dripping, continues to react 100min under constant temperature 25 DEG C of conditions.Finally by the product Magneto separate of gained, for several times, dialysis 36h, the colloid of gained is Fe in decantation cleaning 3o 4, particle diameter is 32nm.
The synthesis of arsenic removal composite: get 0.1g Fe 3o 4nano-colloid particle is placed on ultrasonic 5min in ultrasonic device, ultrasonic power 100w, frequency 50KHZ, then under 330rmp mechanical agitation, by Fe 3o 4colloidal droplets dropwise drops in 1g polystyrene sphere, after stirring 3h, by heterocoagulation, finally obtains product P S-Fe 3o 4.
By the PS-Fe prepared 3o 4ultrasonic 10min, is then As (V) simulated wastewater of 50mg/L by every 100ml concentration, adds 0.05g sample, put into shaking table, and after constant temperature 25 DEG C absorption 24h, the adsorbance of material to As (V) is 132mg/g.

Claims (9)

1. a preparation method for polystyrene-based magnetic nano ferroferric oxide arsenic removal composite, it is characterized in that, the method comprises the steps:
(1) synthesis of polystyrene sphere: in airtight container take water as reaction dissolvent, by styrene monomer and potassium peroxydisulfate mixing, at inert gas shielding, 70 ~ 85 DEG C, reaction 12 ~ 24h under stirring condition, obtains polystyrene sphere;
(2) nano-scale magnetic Fe 3o 4synthesis: in airtight container, take water as reaction dissolvent, bubbling leads to inert gas deoxygenation, then adds FeSO 4.7H 2o and FeCl 3.6H 2o, slowly drips ammoniacal liquor until pH value to 8, stops dripping under stirring condition, at 25 ~ 40 DEG C, reaction 30 ~ 120min under stirring condition, finally by the product Magneto separate of gained, for several times, dialysis 24 ~ 48h, the colloid of gained is nano-scale magnetic Fe in decantation cleaning 3o 4;
(3) synthesis of arsenic removal composite: the nano-scale magnetic Fe that step (2) is obtained 3o 4after the ultrasonic process of colloid, under agitation, drop in polystyrene sphere, after stirring 1 ~ 3h heterocoagulation, by the product Magneto separate of gained, decantation cleaning for several times, to obtain final product.
2. the preparation method of polystyrene-based magnetic nano ferroferric oxide arsenic removal composite according to claim 1, is characterized in that, in step (1), and add that quality is styrene monomer quality 0.12 ~ 0.5% of potassium peroxydisulfate.
3. the preparation method of polystyrene-based magnetic nano ferroferric oxide arsenic removal composite according to claim 1, is characterized in that, in step (1), mixing speed is 100 ~ 200rmp.
4. the preparation method of polystyrene-based magnetic nano ferroferric oxide arsenic removal composite according to claim 1, is characterized in that, in step (2), and FeSO 4.7H 2o and FeCl 3.6H 2the reaction mol ratio of O is 1:1 ~ 1.5.
5. the preparation method of polystyrene-based magnetic nano ferroferric oxide arsenic removal composite according to claim 1, is characterized in that, in step (2), mixing speed is 200 ~ 320rmp.
6. the preparation method of polystyrene-based magnetic nano ferroferric oxide arsenic removal composite according to claim 1, is characterized in that, in step (2), the concentration of ammoniacal liquor is 5 ~ 15mol/L.
7. the preparation method of polystyrene-based magnetic nano ferroferric oxide arsenic removal composite according to claim 1, it is characterized in that, in step (3), ultrasonic treatment conditions are power 70 ~ 100w, frequency 20 ~ 60KHZ, the duration is 3 ~ 20min.
8. the preparation method of polystyrene-based magnetic nano ferroferric oxide arsenic removal composite according to claim 1, is characterized in that, in step (3), and polystyrene sphere and nano-scale magnetic Fe 3o 4the mass ratio of colloid is 1:0.1 ~ 0.2.
9. the preparation method of polystyrene-based magnetic nano ferroferric oxide arsenic removal composite according to claim 1, is characterized in that, in step (3), mixing speed is 300 ~ 500rmp.
CN201310732393.0A 2013-12-26 2013-12-26 Polystyrene based magnetic nano ferroferric oxide arsenic removal composite and preparation method thereof Active CN103657614B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310732393.0A CN103657614B (en) 2013-12-26 2013-12-26 Polystyrene based magnetic nano ferroferric oxide arsenic removal composite and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310732393.0A CN103657614B (en) 2013-12-26 2013-12-26 Polystyrene based magnetic nano ferroferric oxide arsenic removal composite and preparation method thereof

Publications (2)

Publication Number Publication Date
CN103657614A CN103657614A (en) 2014-03-26
CN103657614B true CN103657614B (en) 2015-06-17

Family

ID=50297101

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310732393.0A Active CN103657614B (en) 2013-12-26 2013-12-26 Polystyrene based magnetic nano ferroferric oxide arsenic removal composite and preparation method thereof

Country Status (1)

Country Link
CN (1) CN103657614B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104624175B (en) * 2015-02-13 2017-02-01 厦门大学 Nano-magnetic adsorbent and preparation method thereof
CN104707582A (en) * 2015-03-20 2015-06-17 南京理工大学 Super-hydrophobic porous Fe3O4/PS nano composite material and preparation method thereof
CN108444974A (en) * 2018-04-24 2018-08-24 福州大学 A kind of magnetic surface enhancing Raman active substrate and preparation method thereof
CN109092273A (en) * 2018-09-30 2018-12-28 庞博 A kind of preparation method of magnetic polystyrene base bentonite compound adsorbent

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO155316C (en) * 1982-04-23 1987-03-11 Sintef PROCEDURE FOR MAKING MAGNETIC POLYMER PARTICLES.
CN1303136C (en) * 2004-11-18 2007-03-07 同济大学 Method for preparing hollow magnetic composite particulate for magnetic rheologic liquid by using polystyrene microsphere
CN103157412A (en) * 2013-03-25 2013-06-19 哈尔滨工业大学 Preparation method of electromagnetic composite hollow microspheres

Also Published As

Publication number Publication date
CN103657614A (en) 2014-03-26

Similar Documents

Publication Publication Date Title
Li et al. Highly efficient degradation of sulfamethoxazole (SMX) by activating peroxymonosulfate (PMS) with CoFe2O4 in a wide pH range
Meng et al. Adsorption of Cu2+ ions using chitosan-modified magnetic Mn ferrite nanoparticles synthesized by microwave-assisted hydrothermal method
Bhowmik et al. Sono-assisted rapid adsorption of anionic dye onto magnetic CaFe2O4/MnFe2O4 nanocomposite from aqua matrix
Luo et al. Adsorption of As (III) and As (V) from water using magnetite Fe3O4-reduced graphite oxide–MnO2 nanocomposites
CN103657614B (en) Polystyrene based magnetic nano ferroferric oxide arsenic removal composite and preparation method thereof
Wang et al. Nanomaterials as sorbents to remove heavy metal ions in wastewater treatment
Liu et al. Removal of pharmaceuticals by novel magnetic genipin-crosslinked chitosan/graphene oxide-SO3H composite
Kim et al. Oxidative degradation of the antibiotic oxytetracycline by Cu@ Fe3O4 core-shell nanoparticles
Wang et al. Nickel aluminum layered double oxides modified magnetic biochar from waste corncob for efficient removal of acridine orange
Liu et al. Microwave-enhanced catalytic degradation of methylene blue by porous MFe2O4 (M= Mn, Co) nanocomposites: Pathways and mechanisms
Cheng et al. Ultrasound-assisted heterogeneous Fenton-like process for methylene blue removal using magnetic MnFe2O4/biochar nanocomposite
Chong et al. Rapid degradation of dyes in water by magnetic Fe0/Fe3O4/graphene composites
CN107930629A (en) The preparation method of support type charcoal catalysis material
Sun et al. Highly efficient catalytic reduction of bromate in water over a quasi-monodisperse, superparamagnetic Pd/Fe 3 O 4 catalyst
CN103599751A (en) Preparation method of thiol-functionalized magnetic silica nano-material
Yadav et al. Arsenic removal using bagasse fly ash-iron coated and sponge iron char
Liu et al. Metal-organic framework modified pine needle-derived N, O-doped magnetic porous carbon embedded with Au nanoparticles for adsorption and catalytic degradation of tetracycline
CN109107531A (en) Remove the magnetic oxygenated graphene composite material and preparation method thereof of quadracycline in aqueous solution
Liu et al. A novel CNTs-Fe3O4 synthetized via a ball-milling strategy as efficient fenton-like catalyst for degradation of sulfonamides
Bai et al. Binary adsorption of 17β-estradiol and bisphenol A on superparamagnetic amino-functionalized graphene oxide nanocomposites
Cong et al. A dandelion-like NiCo2O4 microsphere with superior catalytic activity as the mediator of persulfate activation for high-efficiency degradation of emerging contaminants
Khandelwal et al. Impact of long-term storage of various redox-sensitive supported nanocomposites on their application in removal of dyes from wastewater: Mechanisms delineation through spectroscopic investigations
Singh et al. Starch-functionalized magnetite nanoparticles for hexavalent chromium removal from aqueous solutions
Song et al. Performance and mechanism of chelating resin (TP-207) supported Pd/Cu bimetallic nanoparticles in selective reduction of nitrate by using ZVI (zero valent iron) as reductant
CN105642298B (en) The graphene-supported nano Ce of reproducibility0/Fe0Composite material and its preparation method and application

Legal Events

Date Code Title Description
PB01 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