CN103263886A - Hydrothermal preparation method and application of magnetic ferroferric oxide nanochain - Google Patents
Hydrothermal preparation method and application of magnetic ferroferric oxide nanochain Download PDFInfo
- Publication number
- CN103263886A CN103263886A CN2013102218124A CN201310221812A CN103263886A CN 103263886 A CN103263886 A CN 103263886A CN 2013102218124 A CN2013102218124 A CN 2013102218124A CN 201310221812 A CN201310221812 A CN 201310221812A CN 103263886 A CN103263886 A CN 103263886A
- Authority
- CN
- China
- Prior art keywords
- ferroferric oxide
- magnetic ferroferric
- oxide nanometer
- nanometer chain
- magnetic
- 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.)
- Pending
Links
Images
Abstract
The invention belongs to the technical field of nano materials, and provides a hydrothermal preparation method and application of a magnetic ferroferric oxide nanochain and provides the magnetic ferroferric oxide nanochain synthesized in the presence of amine surfactants in one step. The magnetic ferroferric oxide nanochain prepared by the method has good absorption to heavy metal ions Cr (VI) and can be used for water treatment. The method provided by the invention is simple in operational step, and the magnetic ferroferric oxide nanochain prepared is stable in repeatability, good in dispersibility, larger in specific surface area and non-toxic, can exist in different acid-base environments stably, and has a good absorption effect to heavy metal ions (especially hexavalent chromium ions).
Description
Technical field
The invention belongs to technical field of nano material, be specifically related to a kind of hydrothermal preparing process and application thereof of magnetic ferroferric oxide nanometer chain.
Background technology
Chromium is one of essential trace element of organism.The shortage of chromium can cause the metabolic disorder of materials such as sugar, fat, but intake is too high to biological and human harmful.The toxicity of chromium exists form that great relation is arranged with it, trivalent chromium compound is almost non-toxic, and is that humans and animals is necessary; On the contrary, hexavalent chromium compound has strong oxidizing property and carcinogenicity.In general, chromic toxicity is bigger 100 times than trivalent chromium.China's regulation chromium maximum permissible concentration in the surface water: trivalent chromium is 0.5 mg/L, and Cr VI is 0.1 mg/L, and drinking water maximum permissible concentration (hexavalent chromium) is 0.055 mg/L.Therefore be badly in need of seeking a kind of material that can effectively adsorb and be easy to reclaim and can reuse heavy metal ion Cr (VI).
Ferriferrous oxide nano-particle had both had good magnetic performance, have the peculiar character of nano material again: particle diameter is little, specific area is big, coupling capacity height, it is a kind of very important magnetic material, its magnetism characteristic can wait by size, pattern, so they have important use at aspects such as biological medicine, gas sensing, photocatalysis and ambient water pollution control such as magnetic target therapy, the transfection of magnetic induced gene, NMR imagings.But the size of simple ferriferrous oxide particles is especially little, and the unit volume specific area is huge, thereby has high surface energy, and reunites easily, has therefore restricted the application commercialization of this material.Chinese patent CN201010226392.5 discloses a kind of one-dimensional ferroferric oxide magnetic nano chain and preparation method thereof, this method is: place the ferriferrous oxide nano druse in absolute ethyl alcohol and the oxolane mixed solution and carry out ultrasonic dispersion, add HCCP and BPS and further ultrasonic dispersion then successively, add triethylamine at last, through preparing the one-dimensional ferroferric oxide magnetic nano chain of ring cross-linking type polyphosphazene parcel behind the room temperature reaction, the resulting magnetic Nano material of this method can be used for biological fields such as magnetic resonance imaging MIR.This method combines self assembly and the original position template prepares the magnetic ferroferric oxide nanometer chain, (diameter is 194.9 ± 10.8nm) at first to prepare the positively charged super-paramagnetic ferriferrous oxide nano druse in surface, and then obtain the 1-dimention nano chain by adding the finishing ultrasonic reaction, although optimized the preparation method of magnetic nano chain to a certain extent, improved its biocompatibility, but the nanometer crystal druse particle diameter of this method preparation is bigger, be unfavorable for the further finishing of material, and the reagent hexachlorocyclotriph,sphazene that uses, the oxolane excitant is bigger, operating process is relatively complicated, influence factor is many, the preparation cost height, thus limited nano chain application in practice.
Summary of the invention
The present invention is directed to weak point of the prior art, and a kind of hydrothermal preparing process and application thereof of magnetic ferroferric oxide nanometer chain are provided, creatively propose to exist next step to synthesize the magnetic ferroferric oxide nanometer chain at the amine surface agent.The inventive method is simpler, and the magnetic ferroferric oxide nanometer chain of preparation is repeatable stable, good dispersion, have bigger specific area, nontoxic, and can stably be present in the different acid or alkali environments, and to heavy metal ion, particularly hexavalent chromium has the good adsorption effect.
First purpose of the present invention is the complexing of utilizing the amine organic reagent to possess, successfully a step synthesizing magnetic ferriferrous oxide nano chain.Described method preparation technology is simple, and the reaction condition gentleness is applied widely, and being easy to recyclingly, magnetic behavior is good, good dispersion, and the magnetic ferroferric oxide nanometer chain of pattern uniqueness, can stably be present in the organic solvents such as water, ethanol, benzene.
Another object of the present invention is that the magnetic ferroferric oxide nanometer chain for preparing has good adsorptivity for heavy metal ion Cr (VI), can be used for water treatment applications.
The objective of the invention is to realize by following technical measures.
A kind of hydrothermal preparing process of magnetic ferroferric oxide nanometer chain may further comprise the steps:
(1) preparation of magnetic ferroferric oxide nanometer chain precursor liquid
Take by weighing an amount of source of iron FeCl
36H
2O and reaction promoter anhydrous sodium acetate join in the there-necked flask of 100 ml, and mechanical agitation added reducing agent ethylene glycol again to mixing in 5 minutes, stir 20 minutes, obtain mixed liquor A;
(2) amine is surfactant modified
Add the amine surfactant in mixed liquor A, mechanical agitation stopped to stir after 30 minutes, obtain mixed liquid B, measure 60 ~ 80 ml mixed liquid B in the polytetrafluoroethylene (PTFE) autoclave, good seal is inserted in 170 ~ 200 ℃ of constant temperature ovens, reacts at least 7 hours;
(3) post processing of magnetic ferroferric oxide nanometer chain
After treating that the polytetrafluoroethylene (PTFE) autoclave naturally cools to room temperature, take out, behind the product that obtains with the absolute ethyl alcohol ultrasonic cleaning, being placed on temperature is drying in 60 ℃ of vacuum drying chambers, finally obtains the magnetic ferroferric oxide nanometer chain.
In technique scheme, source of iron FeCl
36H
2The mol ratio of O, reaction promoter anhydrous sodium acetate, reducing agent ethylene glycol, amine surfactant is 1: (1 ~ 5): (130 ~ 180): (30 ~ 50).
In technique scheme, described source of iron FeCl
36H
2The best proportion of O, reaction promoter anhydrous sodium acetate, reducing agent ethylene glycol, amine surfactant mol ratio is 1: 3.5: 145: 41.
In technique scheme, described amine surfactant is selected from any one in ethylenediamine, Diethylenetriamine, the sodium ethylene diamine tetracetate.When wherein the amine surfactant exists, be the complexing of utilizing self, complexing the part iron ion, under the condition of HTHP, form the magnetic ferroferric oxide nanometer chain with chain structure.
In addition, the magnetic ferroferric oxide nanometer chain that the hydrothermal preparing process of above-mentioned magnetic ferroferric oxide nanometer chain prepares has good adsorptivity for heavy metal ion Cr (VI), can be used for water treatment applications.Because hexavalent chromium toxicity is bigger, has strong carcinogenesis, is a kind of breakneck environmental contaminants.Yet electroplate, but often contain hexavalent chromium in the waste water of industrial discharges such as process hides, therefore the removal to the heavy metal hexavalent chromium has very important environment protection significance.
Compared with prior art, the present invention has the following advantages:
1, adopt this method prepare the cost of material of magnetic ferroferric oxide nanometer chain cheap, be easy to get, toxicity is little, importantly synthesis technique is simple, it is few influence parameter, operates good reproducibility easily.
2, adopt that the prepared magnetic ferroferric oxide nanometer chain of the present invention not only has unique appearance structure, bigger surface area, the preparation method is novel simple simultaneously, has solved technical problems such as bad, the difficult separation of magnetic material dispersiveness.
3, by the concrete very strong magnetic behavior of the magnetic ferroferric oxide nanometer chain of this method preparation, heavy metal ion is had good enrichment, utilize external magnetic field that the nano chain adsorbent can be separated recovery effectively fast, can improve its cyclic utilization rate.Therefore remove the industrial wastewater field in purification and have good potential application foreground.
Description of drawings
Fig. 1 takes the magnetic ferroferric oxide nanometer chain structure figure that obtains behind the transmission electron microscopy observation.
Fig. 2 is that the magnetic ferroferric oxide nanometer chain is to heavy metal hexavalent chromium solution adsorption isotherm at room temperature.
Fig. 3 is that the magnetic ferroferric oxide nanometer chain is to heavy metal hexavalent chromium solution dynamics adsorption curve at room temperature.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Specific embodiment one: with 2 mol FeCl
36 H
2O and 2 mol anhydrous sodium acetates, join in the there-necked flask of 100 ml and fully mixed 5 minutes, the ethylene glycol that promptly adds 260 mol, after mechanical agitation obtained muddy orange-yellow solution in 20 minutes, add 60 mol amine surfactant ethylenediamines more lentamente, and machinery fully stirred 30 minutes, obtain the crocus viscous fluid, stop to stir, measure 70 ml mixed liquors to the polytetrafluoroethylene (PTFE) autoclave, put the iron-clad sealing into, insert in 180 ℃ of constant temperature ovens, reacted 8 hours.Treat that the polytetrafluoroethylene (PTFE) autoclave naturally cools to room temperature, take out, clean to particle for several times with the absolute ethyl alcohol ultrasonic cleaning after, laying temperature is dry 12 hours of 60 ℃ of vacuum drying chambers, just obtains the magnetic ferroferric oxide nanometer chain.
Specific embodiment two: with 2mol FeCl
36 H
2O and 7 mol anhydrous sodium acetates, join in the there-necked flask of 100 ml and fully mixed 5 minutes, the ethylene glycol that promptly adds 290 mol, after mechanical agitation obtained muddy orange-yellow solution in 20 minutes, add 82 mol amine surfactants, three second tetramines more lentamente, and machinery fully stirred 30 minutes, obtain the crocus viscous fluid, stop to stir, measure 60 ml mixed liquors to the polytetrafluoroethylene (PTFE) autoclave, put the iron-clad sealing into, insert in 170 ℃ of constant temperature ovens, reacted 7.5 hours.Treat that the polytetrafluoroethylene (PTFE) autoclave naturally cools to room temperature, take out, clean to particle for several times with the absolute ethyl alcohol ultrasonic cleaning after, laying temperature is dry 12 hours of 60 ℃ of vacuum drying chambers, just obtains the magnetic ferroferric oxide nanometer chain.
Specific embodiment three: with 2 mol FeCl
36 H
2O and 10 mol anhydrous sodium acetates, join in the there-necked flask of 100 ml and fully mixed 5 minutes, the ethylene glycol that promptly adds 360 mol, after mechanical agitation obtained muddy orange-yellow solution in 20 minutes, the amine surfactant disodium ethylene diamine tetraacetate that adds 100 mol more lentamente, and machinery fully stirred 30 minutes, obtain the crocus viscous fluid, stop to stir, measure 80 ml mixed liquors to the polytetrafluoroethylene (PTFE) autoclave, put the iron-clad sealing into, insert in 200 ℃ of constant temperature ovens, reacted 9 hours.Treat that the polytetrafluoroethylene (PTFE) autoclave naturally cools to room temperature, take out, clean to particle for several times with the absolute ethyl alcohol ultrasonic cleaning after, laying temperature is dry 12 hours of 60 ℃ of vacuum drying chambers, just obtains the magnetic ferroferric oxide nanometer chain.
As shown in Figure 1, take the chain structure that the photo that obtains has clearly illustrated the product that above-described embodiment one to three prepares behind the transmission electron microscopy observation, and each magnetic ferroferric oxide balling-up and favorable dispersibility.Can be clear that the nanosphere of forming nano chain is that the nanometer bead of 20-30 nm is formed by several sizes.
Simultaneously, the present invention simulates industrial electroplating effluent with hexavalent chromium, has studied this magnetic ferroferric oxide nanometer chain to adsorption isotherm and the adsorption dynamics adsorption kinetics of hexavalent chromium.
Specific embodiment four: the hexavalent chromium solution that at first disposes 50 ~ 350 ppm variable concentrations with the slaine potassium bichromate, the pH value of regulating this solution with the HCl of the NaOH of 0.1 mol/L and 0.1 mol/L, simulate different acid or alkali environments, getting best PH value at last is 2.5, take by weighing then that preparation-obtained magnetic ferroferric oxide nanometer chain 50 mg add in the above 50 ml hexavalent chromium solution in above-described embodiment one to three, wave to adsorb to reach balance up to absorption in 24 hours.Magnetic separates then, after getting the supernatant centrifugation, measure the concentration of remaining hexavalent chromium with diphenyl carbazide spectrophotometry, as shown in Figure 2, experimental result shows, using the magnetic ferroferric oxide nanometer chain of this method preparation is 270 mg/g to hexavalent chromium maximum saturation adsorbance, and the magnetic ferroferric oxide nanometer chain of this method preparation has adsorption effect preferably to hexavalent chromium.
Specific embodiment five: at first be the hexavalent chromium solution of 250 ppm with the potassium bichromate configuration concentration, the pH value of regulating this solution with the HCl of the NaOH of 0.1 mol/L and 0.1 mol/L is 2.5.Take by weighing then more than preparation-obtained magnetic ferroferric oxide nanometer chain 100 mg add in above-described embodiment one to three in the 100 ml hexavalent chromium solution.Wave in room temperature and 200 r/min, get sample at set intervals one time, magnetic separates, get supernatant, measure the solubility of remaining hexavalent chromium with the diphenylcarbazide spectrophotometer method, as shown in Figure 3, experimental result shows, uses the magnetic ferroferric oxide nanometer chain of this method preparation that hexavalent chromium is had adsorption efficiency faster.
Claims (4)
1. the hydrothermal preparing process of a magnetic ferroferric oxide nanometer chain is characterized in that this method may further comprise the steps:
(1) preparation of magnetic ferroferric oxide nanometer chain precursor liquid
Take by weighing an amount of source of iron FeCl
36H
2O and reaction promoter anhydrous sodium acetate join in the there-necked flask of 100 ml, and mechanical agitation added reducing agent ethylene glycol again to mixing in 5 minutes, stir 20 minutes, obtain mixed liquor A;
(2) amine is surfactant modified
Add the amine surfactant in mixed liquor A, mechanical agitation stopped to stir after 30 minutes, obtain mixed liquid B, measure 60 ~ 80 ml mixed liquid B in the polytetrafluoroethylene (PTFE) autoclave, good seal is inserted in 170 ~ 200 ℃ of constant temperature ovens, reacts at least 7 hours;
(3) post processing of magnetic ferroferric oxide nanometer chain
After treating that the polytetrafluoroethylene (PTFE) autoclave naturally cools to room temperature, take out, behind the product that obtains with the absolute ethyl alcohol ultrasonic cleaning, it is 60 ℃ of vacuum drying chambers dryings that product is placed temperature, finally obtains the magnetic ferroferric oxide nanometer chain;
Wherein, the mol ratio of described source of iron FeCl36H2O, reaction promoter anhydrous sodium acetate, reducing agent ethylene glycol, amine surfactant is 1: (1 ~ 5): (130 ~ 180): (30 ~ 50).
2. the hydrothermal preparing process of magnetic ferroferric oxide nanometer chain according to claim 1 is characterized in that: described source of iron FeCl
36H
2The best proportion of O, reaction promoter anhydrous sodium acetate, reducing agent ethylene glycol, amine surfactant mol ratio is 1: 3.5: 145: 41.
3. the hydrothermal preparing process of magnetic ferroferric oxide nanometer chain according to claim 1 is characterized in that: described amine surfactant is selected from a kind of in ethylenediamine, Diethylenetriamine, the sodium ethylene diamine tetracetate.
4. the magnetic ferroferric oxide nanometer chain for preparing of the hydrothermal preparing process of the described magnetic ferroferric oxide nanometer chain of claim 1 has good characterization of adsorption for heavy metal ion Cr (VI), can be used for water treatment applications.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102218124A CN103263886A (en) | 2013-06-06 | 2013-06-06 | Hydrothermal preparation method and application of magnetic ferroferric oxide nanochain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102218124A CN103263886A (en) | 2013-06-06 | 2013-06-06 | Hydrothermal preparation method and application of magnetic ferroferric oxide nanochain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103263886A true CN103263886A (en) | 2013-08-28 |
Family
ID=49007572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102218124A Pending CN103263886A (en) | 2013-06-06 | 2013-06-06 | Hydrothermal preparation method and application of magnetic ferroferric oxide nanochain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103263886A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480323A (en) * | 2013-09-03 | 2014-01-01 | 安徽师范大学 | Method for realizing one-step synthesis of ferroferric oxide microspheres having hierarchical structure and application method of product thereof |
| CN104525131A (en) * | 2015-01-05 | 2015-04-22 | 福州大学 | CDTA modified magnetic nano-adsorbent and preparation method and application thereof |
| CN104815620A (en) * | 2015-05-05 | 2015-08-05 | 济南大学 | Preparation method of magnetic zeolite |
| CN106348416A (en) * | 2016-08-30 | 2017-01-25 | 马鞍山金泉工业介质科技有限公司 | Method for preparing superparamagetism nano Fe3O4 from acid iron-ion-containing hot galvanizing industrial wastewater |
| CN106378092A (en) * | 2016-11-01 | 2017-02-08 | 武汉理工大学 | Method for preparing peanut shell activated carbon-based magnetic Cr(VI) adsorbent |
| CN107282026A (en) * | 2017-06-26 | 2017-10-24 | 浙江大学宁波理工学院 | Chain nano magnetic material, preparation method and applications |
| CN108607514A (en) * | 2018-05-22 | 2018-10-02 | 华东理工大学 | A kind of preparation method of aminated magnetic porous microspheres |
| CN110205095A (en) * | 2019-06-10 | 2019-09-06 | 南京航空航天大学 | One kind being directed to the efficient wave absorbing agent and preparation method thereof of 2 ~ 18GHz frequency range |
| CN110451579A (en) * | 2019-08-20 | 2019-11-15 | 临沂大学 | A kind of dispersion Fe2O3Preparation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080138262A1 (en) * | 2006-12-12 | 2008-06-12 | Brooks Christopher J | Preparation of iron or iron oxide nanoparticles |
| CN101885513A (en) * | 2010-07-15 | 2010-11-17 | 上海交通大学 | One-dimensional ferroferric oxide magnetic nano chain and preparation method thereof |
| CN102417208A (en) * | 2011-08-08 | 2012-04-18 | 江苏大学 | Mesoporous magnetic ferriferrous oxide, its preparation method and application |
| CN103058283A (en) * | 2013-02-01 | 2013-04-24 | 济南大学 | Preparation method of iron oxides with adjustable size, appearance and compositions |
-
2013
- 2013-06-06 CN CN2013102218124A patent/CN103263886A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080138262A1 (en) * | 2006-12-12 | 2008-06-12 | Brooks Christopher J | Preparation of iron or iron oxide nanoparticles |
| CN101885513A (en) * | 2010-07-15 | 2010-11-17 | 上海交通大学 | One-dimensional ferroferric oxide magnetic nano chain and preparation method thereof |
| CN102417208A (en) * | 2011-08-08 | 2012-04-18 | 江苏大学 | Mesoporous magnetic ferriferrous oxide, its preparation method and application |
| CN103058283A (en) * | 2013-02-01 | 2013-04-24 | 济南大学 | Preparation method of iron oxides with adjustable size, appearance and compositions |
Non-Patent Citations (1)
| Title |
|---|
| 刘勇: "Fe3O4纳米粒子制备及其对水溶液中Cr（Ⅵ）和Mn（Ⅱ）去除机制的研究", 《中国博士学位论文全文数据库 工程科技Ⅰ辑》, 15 June 2012 (2012-06-15) * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480323A (en) * | 2013-09-03 | 2014-01-01 | 安徽师范大学 | Method for realizing one-step synthesis of ferroferric oxide microspheres having hierarchical structure and application method of product thereof |
| CN103480323B (en) * | 2013-09-03 | 2016-04-27 | 安徽师范大学 | A kind of method of one-step synthesis hierarchy tri-iron tetroxide microballoon with and products thereof application process |
| CN104525131A (en) * | 2015-01-05 | 2015-04-22 | 福州大学 | CDTA modified magnetic nano-adsorbent and preparation method and application thereof |
| CN104815620A (en) * | 2015-05-05 | 2015-08-05 | 济南大学 | Preparation method of magnetic zeolite |
| CN106348416A (en) * | 2016-08-30 | 2017-01-25 | 马鞍山金泉工业介质科技有限公司 | Method for preparing superparamagetism nano Fe3O4 from acid iron-ion-containing hot galvanizing industrial wastewater |
| CN106348416B (en) * | 2016-08-30 | 2019-03-26 | 马鞍山金泉工业介质科技有限公司 | It is a kind of that super-paramagnetism nano Fe is prepared by acid, the hot galvanizing industrial wastewater containing iron ion3O4Method |
| CN106378092A (en) * | 2016-11-01 | 2017-02-08 | 武汉理工大学 | Method for preparing peanut shell activated carbon-based magnetic Cr(VI) adsorbent |
| CN107282026A (en) * | 2017-06-26 | 2017-10-24 | 浙江大学宁波理工学院 | Chain nano magnetic material, preparation method and applications |
| CN108607514A (en) * | 2018-05-22 | 2018-10-02 | 华东理工大学 | A kind of preparation method of aminated magnetic porous microspheres |
| CN110205095A (en) * | 2019-06-10 | 2019-09-06 | 南京航空航天大学 | One kind being directed to the efficient wave absorbing agent and preparation method thereof of 2 ~ 18GHz frequency range |
| CN110205095B (en) * | 2019-06-10 | 2020-10-16 | 南京航空航天大学 | Efficient wave absorbing agent for 2-18 GHz frequency band and preparation method thereof |
| CN110451579A (en) * | 2019-08-20 | 2019-11-15 | 临沂大学 | A kind of dispersion Fe2O3Preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103263886A (en) | Hydrothermal preparation method and application of magnetic ferroferric oxide nanochain | |
| Hu et al. | Removal of reactive dyes in textile effluents by catalytic ozonation pursuing on-site effluent recycling | |
| CN105498707A (en) | Preparation method and application of modified graphene oxide/chitosan composite material | |
| CN102826613B (en) | Preparation method of graphene-based ferroferric oxide nano-composite material | |
| Jia et al. | Ion flotation of heavy metal ions by using biodegradable biosurfactant as collector: Application and removal mechanism | |
| CN105618002B (en) | modified starch/graphene oxide magnetic composite microsphere and preparation method thereof | |
| CN104722276A (en) | Magnetic cucurbit urils/grapheme oxide composite material and preparation method thereof | |
| CN105771908A (en) | Magnetic silicon dioxide core-shell composite material for adsorbing heavy metal and preparation method thereof | |
| Hai et al. | Fullerene functionalized magnetic molecularly imprinted polymer: synthesis, characterization and application for efficient adsorption of methylene blue | |
| CN104043396A (en) | Preparation method and application of magnetic aminated graphene oxide | |
| CN103816903B (en) | The synthetic method of iron-base magnetic nanoneedle iron ore | |
| He et al. | Atmospheric low-temperature plasma for direct post-synthetic modification of UiO-66 | |
| CN107008230A (en) | Magnetic composite adsorbent and preparation method thereof | |
| Ansari et al. | Kinetic studies on the catalytic degradation of rhodamine b by hydrogen peroxide: Effect of surfactant coated and non-coated iron (III) oxide nanoparticles | |
| CN108404942A (en) | A kind of fluorine richness Fe3O4Magnetic Nano material and its preparation method and application | |
| Liu et al. | Preparation of aerogel Mg (OH) 2 nanosheets by a combined sol–gel-hydrothermal process and its calcined MgO towards enhanced degradation of paraoxon pollutants | |
| CN106147272A (en) | A kind of natural black pigment and iron oxides or method of hydroxide composite prepared | |
| Alluhaybi et al. | A novel triazole schiff base derivatives for remediation of chromium contamination from tannery waste water | |
| CN107159094B (en) | The method of tetracycline in magnetic magnesium hydroxide adsorbent removal waste water | |
| CN109231183B (en) | Carbon quantum dot with citric acid as carbon source and preparation method and application thereof | |
| CN107224961A (en) | Carboxylated graphene oxide/ferriferrous oxide nano compound adsorbent for handling waste water containing chrome tanning and preparation method thereof | |
| Al-Saidi | Biosorption using chitosan thiourea polymer as an extraction and preconcentration technique for copper prior to its determination in environmental and food samples by flame atomic absorption spectrometry: Synthesis, characterization and analytical applications | |
| CN106378111B (en) | A kind of magnetic Fe with nucleocapsid3O4/ PMMA nano-compound adsorbents and preparation method thereof | |
| CN106824142A (en) | A kind of thiourea dioxide reduces magnetic oxygenated Graphene and preparation method and application | |
| Chaudhary et al. | Removal of coomassie brilliant blue R-250 dye from water using γ-Fe2O3 nanoparticles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130828 |