CN107243344B - One-step synthesis method of magnetic graphene - Google Patents
One-step synthesis method of magnetic graphene Download PDFInfo
- Publication number
- CN107243344B CN107243344B CN201710331690.2A CN201710331690A CN107243344B CN 107243344 B CN107243344 B CN 107243344B CN 201710331690 A CN201710331690 A CN 201710331690A CN 107243344 B CN107243344 B CN 107243344B
- Authority
- CN
- China
- Prior art keywords
- magnetic graphene
- synthesis method
- step synthesis
- magnetic
- catalyst
- 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.)
- Expired - Fee Related
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 33
- 238000001308 synthesis method Methods 0.000 title claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims abstract description 10
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004202 carbamide Substances 0.000 claims abstract description 10
- 235000010413 sodium alginate Nutrition 0.000 claims abstract description 10
- 229940005550 sodium alginate Drugs 0.000 claims abstract description 10
- 239000000661 sodium alginate Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- NQXWGWZJXJUMQB-UHFFFAOYSA-K iron trichloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].Cl[Fe+]Cl NQXWGWZJXJUMQB-UHFFFAOYSA-K 0.000 claims abstract description 6
- 239000007864 aqueous solution Substances 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 229940044631 ferric chloride hexahydrate Drugs 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000001291 vacuum drying Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 239000012295 chemical reaction liquid Substances 0.000 claims 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract description 14
- 239000003054 catalyst Substances 0.000 abstract description 11
- 230000003197 catalytic effect Effects 0.000 abstract description 9
- 239000002245 particle Substances 0.000 abstract description 7
- 230000015556 catabolic process Effects 0.000 abstract description 6
- 238000006731 degradation reaction Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 abstract description 4
- 229960000907 methylthioninium chloride Drugs 0.000 abstract description 4
- 230000000593 degrading effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000013078 crystal Substances 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011197 physicochemical method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/745—Iron
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/33—Electric or magnetic properties
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a one-step synthesis method of magnetic graphene, which comprises the following steps: (1) preparing graphene oxide and ferric trichloride hexahydrate into an aqueous solution; (2) adding urea and sodium alginate, then transferring to a reaction kettle, heating at 200 ℃, cooling to room temperature after the reaction is finished, centrifuging, cleaning and drying the obtained product to obtain the magnetic graphene. The magnetic graphene with uniform appearance and uniform particle distribution is obtained, and the average particle size is only 7 nm. The obtained material has excellent catalytic performance in a test of catalyzing and degrading methylene blue by a Photo-Fenton system. Under the environment of room temperature and near neutrality (pH 6), the degradation rate can reach 96 percent at most after 120 minutes, which is obviously higher than that of Fe3O4The catalytic efficiency of the catalyst is not obviously reduced after the catalyst is used for multiple times, and the catalyst can also keep good catalytic performance when used in an actual water sample.
Description
Technical Field
The invention belongs to the technical field of graphene synthesis, and particularly relates to a one-step synthesis method of magnetic graphene.
Background
With the rapid development of science and technology, the living standard of people has changed greatly. People have new problems, namely environmental problems, while developing industry and developing new energy. How to effectively control the discharge of waste water and treat the waste water becomes one of the important problems facing human beings. There are many techniques that have been used for the degradation of dye wastewater, including chemical methods, physicochemical methods, biological methods, or various combined methods, for example, activated carbon adsorption and microbial degradation, and the like. The traditional wastewater treatment method represented by homogeneous Fenton reaction has the defects of difficult separation of the catalyst and the like. Fe developed on the basis3O4Heterogeneous Fenton oxidation as catalyst although using Fe3O4The excellent magnetic property well solves the problems of difficult separation, secondary pollution and the like, but the defects of low catalytic efficiency, narrow applicable pH range and the like still exist due to the singleness of materials. Grinding machineThe introduction of near ultraviolet light and visible light can greatly improve the speed of Fenton reaction, so that the Photo-Fenton method is widely researched, and particularly, the heterogeneous Photo-Fenton reaction taking a carbon-based magnetic nano composite material as a catalyst can efficiently remove organic dye in waste liquid without causing secondary pollution, has low energy consumption, wide pH application range, good application prospect and high application value.
In addition, although the environmental problems generated during the use of the catalyst are effectively solved, the environmental pollution caused by the use of toxic reagents, such as hydrazine hydrate, in the catalyst synthesis process is not ignored.
Disclosure of Invention
The invention solves the technical problem of providing a method for synthesizing magnetic graphene (RGO/Fe) by one step3O4) The method takes biomacromolecule sodium alginate as a reducing agent and a stabilizing agent to obtain Fe with uniform appearance, uniform particle dispersion and uniform Fe3O4RGO/Fe with a particle size of only 7nm3O4The material has excellent catalytic capability in the application of degrading methylene blue in a Photo-Fenton system.
The invention adopts the following technical scheme to solve the technical problems,
a one-step synthesis method of magnetic graphene comprises the following steps:
(1) preparing graphene oxide and ferric trichloride hexahydrate into an aqueous solution;
(2) and adding urea and sodium alginate, then transferring to a reaction kettle for heating at 200 ℃, cooling to room temperature after the reaction is finished, and centrifuging, cleaning and drying the obtained product to obtain the magnetic graphene.
The mass ratio of the graphene oxide to the ferric chloride hexahydrate is 1: 15-20, preferably 1: 17.5.
The mass ratio of the urea to the sodium alginate is 2-4: 1, preferably 2: 1.
Heating urea and sodium alginate in a reaction kettle at 200 ℃ for 10 h.
The washing is that the centrifuged product is washed by water and absolute ethyl alcohol alternately for 6 times.
The drying is vacuum drying at 60 ℃ for 7 h.
The concentration of the graphene oxide in the reaction solution is 0.75-3.5mg/mL, and the mass concentration of the urea in the solution is 0.0125-0.05 mg/mL.
The method has the advantages of no participation of any toxic reagent in the synthesis, easily controlled conditions, convenient operation, environmental protection, simple synthesis equipment, common and easily obtained raw materials, quick and efficient reaction, higher catalytic efficiency of the product and the like.
Drawings
Fig. 1 is a synthesis route of magnetic graphene according to the present invention;
FIG. 2 shows Graphene Oxide (GO), Reduced Graphene (RGO), RGO/Fe prepared in example 1 of the present invention3O4And Fe3O4An XRD pattern of (a);
fig. 3 is a transmission electron microscope atlas of the magnetic graphene prepared in example 1 of the present invention.
Detailed Description
The present invention is described in further detail below with reference to examples, but it should not be construed that the scope of the above subject matter of the present invention is limited to the following examples, and that all the technologies realized based on the above subject matter of the present invention belong to the scope of the present invention.
Example 1
Fig. 1 shows a synthesis route of magnetic graphene according to the present invention. 50mg of GO and ferric chloride hexahydrate (FeCl)3·6H2O) preparing 10mL of aqueous solution of the solid according to the mass ratio of 1: 17.5, adding 0.5g of urea, then, carrying out magnetic stirring for 0.5h to fully dissolve the solid, dropwise adding 30mL of 21.2mM sodium alginate aqueous solution while stirring, and then, transferring the mixture into a 50mL reaction kettle, and heating the mixture at 200 ℃ for 10 h. Fe used for control in experiments3O4Nanoparticles were synthesized using the same method except that the raw material was depleted in GO, while RGO used for the control was depleted in FeCl3·6H2And (4) adding O.
FIG. 2 is an XRD spectrum of the material prepared in this example, which comprises, from top to bottom, Graphene Oxide (GO), Reduced Graphene (RGO), RGO/Fe3O4And Fe3O4XRD pattern of (1), the lowest part is Fe3O4Standard map (JCPDS card No. 65-3107). Wherein the diffraction peak of GO at 2 theta of 10.8 degrees corresponds to the (001) crystal face, the broad diffraction peak of RGO at 2 theta of 23.0 degrees corresponds to the (002) crystal face, and the disappearance of the characteristic peak of the (001) crystal face and the appearance of the characteristic peak of the (002) crystal face from GO to RGO mean that GO is reduced by the sodium alginate biomolecule to a certain extent. RGO/Fe3O4And Fe3O4Has diffraction peaks at the same positions and can accurately correspond to the lowest Fe in the diagram3O4Standard map (JCPDS card No.65-3107), while RGO is at RGO/Fe3O4No distinct characteristic peaks appear in the spectrum, probably due to its low mass content.
FIG. 3 is a transmission electron microscope atlas of the magnetic graphene prepared in this example, wherein the images (a-c) are morphology images under different magnifications, and Fe can be known from the images3O4The particles are uniform in size and distribution, and the pattern (d) is a pattern of lattice fringes in which the lattice spacing is 0.296nm, corresponding to Fe3O4The (220) crystal plane of (A), the figure (e) is selective zone diffraction, the diffraction ring is obvious in the figure, which shows that the crystallinity of the product is good, wherein the (331), (531) and (422) crystal planes correspond to the characterization result of XRD, the figure (f) is a grain size analysis figure, and the figure shows that Fe3O4The particles are small and the average particle size is only 7 nm.
The application comprises the following steps:
at room temperature of 25 deg.C, the time is controlled to be 120min, and the initial concentration of hydrogen peroxide is 10.0 mmol.L-1Initial concentration of methylene blue 20 mg.L-1，RGO/Fe3O4The adding amount is 0.25 g.L-1Under the condition of (1), the catalytic performance of the obtained material in an experiment for catalyzing and degrading methylene blue by a Photo-Fenton system is researched under the experiment condition that the initial pH of the solution is adjusted to be 6. The experimental result shows that the highest degradation rate can reach 96% after 120min, while Fe3O4The degradation rate of the catalyst is only 68.2 percent, compared with the prior art, the catalyst has obviously improved catalytic efficiency and no obvious reduction of the degradation rate after repeated recycling, and can also be used in actual water samplesGood catalytic performance is maintained, and the catalyst has high application value and excellent application prospect.
The foregoing embodiments illustrate the principles, principal features and advantages of the invention, and it will be understood by those skilled in the art that the invention is not limited to the foregoing embodiments, which are merely illustrative of the principles of the invention, and that various changes and modifications may be made therein without departing from the scope of the principles of the invention.
Claims (7)
1. A one-step synthesis method of magnetic graphene is characterized by comprising the following steps:
(1) preparing graphene oxide and ferric trichloride hexahydrate into an aqueous solution;
(2) adding urea and sodium alginate, then transferring to a reaction kettle, heating at 200 ℃, cooling to room temperature after the reaction is finished, centrifuging, cleaning and drying the obtained product to obtain the magnetic graphene.
2. The one-step synthesis method of magnetic graphene according to claim 1, characterized in that: the mass ratio of the graphene oxide to the ferric chloride hexahydrate is 1: 15-20.
3. The one-step synthesis method of magnetic graphene according to claim 1, characterized in that: the mass ratio of the urea to the sodium alginate is 2-4: 1.
4. The one-step synthesis method of magnetic graphene according to claim 1, characterized in that: heating urea and sodium alginate in a reaction kettle at 200 ℃ for 10 h.
5. The one-step synthesis method of magnetic graphene according to claim 1, characterized in that: the washing is that the centrifuged product is washed by water and absolute ethyl alcohol alternately for 6 times.
6. The one-step synthesis method of magnetic graphene according to claim 1, characterized in that: the drying is vacuum drying at 60 ℃ for 7 h.
7. The one-step synthesis method of magnetic graphene according to claim 1, characterized in that: the concentration of the graphene oxide in the reaction liquid is 0.75-3.5mg/mL, and the mass concentration of the urea is 0.0125-0.05 mg/mL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710331690.2A CN107243344B (en) | 2017-05-12 | 2017-05-12 | One-step synthesis method of magnetic graphene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710331690.2A CN107243344B (en) | 2017-05-12 | 2017-05-12 | One-step synthesis method of magnetic graphene |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107243344A CN107243344A (en) | 2017-10-13 |
| CN107243344B true CN107243344B (en) | 2020-05-01 |
Family
ID=60016634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710331690.2A Expired - Fee Related CN107243344B (en) | 2017-05-12 | 2017-05-12 | One-step synthesis method of magnetic graphene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107243344B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110465293A (en) * | 2019-07-24 | 2019-11-19 | 北方工程设计研究院有限公司 | The preparation method and application of magnetic visible light heterogeneous Fenton catalyst |
| CN110563960B (en) * | 2019-09-16 | 2021-04-02 | 中国科学院生态环境研究中心 | Nitrogen-doped iron-based graphene gel, and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104839210A (en) * | 2015-03-24 | 2015-08-19 | 浙江工商大学 | Preparation method and application for magnetic-nanosilver-graphene nano composite material l |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101172037B1 (en) * | 2009-12-28 | 2012-08-07 | 전남과학대학 산학협력단 | Manufacturing method of titanium dioxide fiber added silver |
| CN103305185B (en) * | 2013-06-08 | 2014-07-02 | 西北工业大学 | Method for preparing reduced-oxidized graphene/Fe3O4/Ag nano composite wave-absorbing material |
| CN104549361B (en) * | 2014-12-10 | 2017-11-07 | 郑州轻工业学院 | A kind of magnetic noble metal catalyst for strengthening activity with Raman and preparation method thereof |
-
2017
- 2017-05-12 CN CN201710331690.2A patent/CN107243344B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104839210A (en) * | 2015-03-24 | 2015-08-19 | 浙江工商大学 | Preparation method and application for magnetic-nanosilver-graphene nano composite material l |
Non-Patent Citations (2)
| Title |
|---|
| "Microwave-assisted synthesis of silver nanoparticles using sodium alginate and their antibacterial activity";Xihui Zhao et al.;《COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS》;20131217;第444卷;第181页 * |
| "磁性Fe3O4/石墨烯Photo-Fenton催化剂的制备及其催化活性";何光裕 等;《无机化学学报》;20121130;第28卷(第11期);第2306-2307页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107243344A (en) | 2017-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Rong et al. | Preparation, characterization and photocatalytic application of TiO2–graphene photocatalyst under visible light irradiation | |
| CN103521163B (en) | A kind of preparation method of nanometer composite with chrysanthemum structure | |
| Zhong et al. | Synthesis of modified bismuth tungstate and the photocatalytic properties on tetracycline degradation and pathways | |
| Ammar et al. | Synthesis, characterization and environmental remediation applications of polyoxometalates-based magnetic zinc oxide nanocomposites (Fe3O4@ ZnO/PMOs) | |
| Li et al. | Advanced nanostructured photocatalysts based on reduced graphene oxide-flower-like Bi2WO6 composites for an augmented simulated solar photoactivity activity | |
| CN102921416A (en) | Nano composite photocatalytic material and method for preparing same | |
| CN113877581B (en) | Copper ferrite spinel material and preparation method and application thereof | |
| CN107243348B (en) | Biologically-assisted synthesis method of antibacterial photocatalyst | |
| CN111617731A (en) | Method for treating antibiotics in water body by coupling magnetic nano material with persulfate | |
| CN109174161B (en) | Magnetically separable TNTs/g-C3N4Preparation method and application of nano composite material | |
| CN108126718B (en) | In2S3/BiPO4Preparation method and application of heterojunction photocatalyst | |
| Mohammadiyan et al. | Synthesis and characterization of a magnetic Fe3O4@ CeO2 nanocomposite decorated with Ag nanoparticle and investigation of synergistic effects of Ag on photocatalytic activity | |
| Hong et al. | Urchin-like CuO microspheres: Synthesis, characterization, and properties | |
| CN111036249A (en) | FexP/Mn0.3Cd0.7S composite photocatalyst and preparation method and application thereof | |
| CN109876810A (en) | A kind of preparation method and applications of magnetism microalgae base charcoal | |
| CN109569561A (en) | A kind of graphene/ZnAlTi hydrotalcite-like composite material and its preparation method and application | |
| CN107243344B (en) | One-step synthesis method of magnetic graphene | |
| Yang et al. | Investigation of electron beam irradiation on In2S3-MxInySz (M= Bi or La) Z-scheme heterojunctions for efficient and stable degradation of water pollutants | |
| CN104117339A (en) | Preparation method and application method of adsorbent for adsorbing dye | |
| CN112125349A (en) | High-durability cobalt ferrite material and application thereof | |
| CN110227515B (en) | Bi2MoO6/BiPO4P-n heterojunction photocatalyst, preparation method and application thereof | |
| Liu et al. | Facile fabrication of magnesium peroxide with different morphologies via the isomorphic transformation of magnesium oxide for Fenton-like degradation of methylene blue | |
| Li et al. | Synthesis of recyclable magnetic mesoporous RH-FSBA photoelectrocatalyst with double cavity structure | |
| CN109046226B (en) | Preparation method and application of iron oxyhydroxide nanosheet for treating anionic dye sewage | |
| CN113120977B (en) | Method for preparing nickel ferrite nano material from nickel-containing ferroelectric plating wastewater and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200501 Termination date: 20210512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |