CN107561130B - The Fe of diallyl dimethyl ammoniumchloride cladding1.833(OH)0.5O2.5Load nano combined sensing material of nitrogen-doped graphene and preparation method thereof - Google Patents
The Fe of diallyl dimethyl ammoniumchloride cladding1.833(OH)0.5O2.5Load nano combined sensing material of nitrogen-doped graphene and preparation method thereof Download PDFInfo
- Publication number
- CN107561130B CN107561130B CN201610510423.7A CN201610510423A CN107561130B CN 107561130 B CN107561130 B CN 107561130B CN 201610510423 A CN201610510423 A CN 201610510423A CN 107561130 B CN107561130 B CN 107561130B
- Authority
- CN
- China
- Prior art keywords
- sensing material
- suspension
- preparation
- pdda
- graphene
- 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
Links
Abstract
The invention discloses a kind of Fe of diallyl dimethyl ammoniumchloride cladding1.833(OH)0.5O2.5Nano combined sensing material of nitrogen-doped graphene and preparation method thereof is loaded, the steps include: under ultrasound, the alcohol suspension of graphene oxide is prepared using oxidation graphite solid；PDDA is added to stir evenly into suspension, continuously adds FeCl2·4H2O is stirred evenly；By said mixture and NH3·H2Hydro-thermal reaction is carried out immediately after O mixing, wherein graphite oxide and NH3·H2The ratio of O is 1:1 ~ 1:5mg/ μ l；Reaction temperature is 160 ~ 200 DEG C；The sensing material is obtained after washing, drying, the preparation of the nano combined sensing material is a kind of science integration nano-metal-oxide growth in situ, one pot of hydro-thermal assemble method of graphene oxide synchronous reduction and polymer overmold Functionalization.The hybrid material synthesis step that the present invention synthesizes is simple, efficient, is easy to largely prepare, and is particularly suitable for application as the electrochemical catalysis detecting and analysis of nitrite.
Description
Technical field
The present invention relates to a kind of functionalization graphene nano material and preparation method thereof, especially a kind of polydiene propyl two
The Fe of ammonio methacrylate (PDDA) cladding1.833(OH)0.5O2.5Load nitrogen-doped graphene (NG) nano combined sensing material and its
Preparation method belongs to field of material preparation.
Background technique
Nitrite is widely present in human environment, is most common nitrogenous compound in nature, green plants
Nitrogen source, frequently as food additive and preservative in food industry.The pollution of nitrite in drinking water can lead to many diseases
There are also gastric cancer, these diseases are reacted by nitrite and amine substance for sick such as methemoglobinemia, blue baby's syndrome
Caused by nitrosamine generated.Since nitrite is to the adverse effect of environment and human health, for nitrite
Sensitive detection has caused the attention of height.
Some has included spectrophotometry, chemiluminescence, capillary electrophoresis, color by the analysis means of development and application
Spectrometry etc., these analysis methods usually require expensive instrument and equipment, complicated detecting step and consumption a large amount of time, and
These methods are compared, and electrochemical method can provide relative compact, cheap, reliable, sensitive and instant analysis detection.It is a variety of
Functional nanomaterials, which have been explored, carrys out modified electrode, to reduce overvoltage and improve the sensitivity of nitrite sensing.
Carbon nano-structured (including fullerene, carbon nanotube and graphene etc.) has possessed largely in terms of Electrochemical Detection
Application.Because these materials possess high conductivity, wide electrochemical window, possess good chemical stability in most of electrolyte
And surface the advantages of easily regenerating.In carbon material, graphene (Graphene), as novel two-dimension nano materials, to seek
Ideal nanostructure is asked to provide important channel.The synergistic effect of graphene and other components can assign material new spy
Property make material that there is different potential applications, such as metal-metallic oxide nanoparticle, polymer for different demands
And the binary catalyst systems such as biomolecule.However, although the load of the nanoparticle with catalytic activity is shown well
Chemical property cause poor in dispersibility but since the feature nanoparticle in its structure is immobilized on the surface layer of graphene.
A kind of polydimethyl diallyl ammonium chloride (PDDA), cationic polyelectrolyte of line style, can effectively improve material scatter.And
In the prior art, building trielement composite material generally requires complicated technique, has wasted largely manpower, material resources, the three wastes compared with
It is high.Thus, realize that multicomponent mixture building nanosensor also becomes current work that is most important and most challenging using simple technique
One of.(1. L. Cui, T. Pu, Y. Liu, X. He, Electrochim. Acta, 88 (2013) 559-564.
2. 51 (2014) 343-348 of J. Jiang, W. Fan, X. Du, Biosens. Bioelectron.)
But method used by the above-mentioned methods, prepared by material is different from the method that the present invention uses.Generally, document
The method of middle report is mostly complicated many more manipulations, and synthesis step is cumbersome, it is difficult to industrialization large-scale production, the three wastes compared with
It is more.
Summary of the invention
The present invention provides a kind of polydiene third for the deficiencies of of the existing technology cumbersome, complicated, the three wastes are larger
The Fe of base alkyl dimethyl ammonium chloride (PDDA) cladding1.833(OH)0.5O2.5Load nitrogen-doped graphene (NG) nano combined sensing material
And preparation method thereof.
The technical solution for realizing the aim of the invention is as follows: a kind of Fe of diallyl dimethyl ammoniumchloride cladding1.833
(OH)0.5O2.5The nano combined sensing material of nitrogen-doped graphene is loaded, general structure is as follows:
。
A kind of Fe of diallyl dimethyl ammoniumchloride cladding1.833(OH)0.5O2.5It is multiple to load nitrogen-doped graphene nanometer
The preparation method for closing sensing material obtains oxidation graphite solid by handling natural graphite powder deep oxidation, then through in ethyl alcohol
Middle ultrasonic disperse obtains graphene oxide alcohol dispersion liquid, and PDDA and FeCl is added2·4H2O is after stirring, one pot of hydro-thermal is closed
At can be prepared by crude product.After filtering and drying, the nano combined sensing material of functionalization graphene is obtained.Its specific work
Skill the following steps are included:
Step 1 uses improved Hummers method to prepare oxidation graphite solid with natural graphite powder；
Under step 2, ultrasound, the alcohol suspension of graphene oxide is prepared；
It is stirred evenly in step 3, the suspension being added in PDDA to step 2, continuously adds FeCl2·4H2O is stirred evenly；
Step 4, the mixture and NH for obtaining step 33·H2Hydro-thermal reaction is carried out immediately after O mixing, wherein oxidation stone
Ink and NH3·H2The ratio of O is 1:1 ~ 1:5 mg/ μ l；Reaction temperature is 160 ~ 200 DEG C；
The sensing material Fe is obtained after step 5, washing, drying1.833(OH)0.5O2.5/NG@PDDA。
Further, in step 2, the ultrasonic time is 5 ~ 24 h.
Further, in step 2, the ratio of graphite oxide and ethyl alcohol is 1 ~ 0.2 mg/ml.
Further, in step 3, the ratio of graphite oxide and PDDA are 1:1 ~ 1:10 mg/ μ l；Graphite oxide and
FeCl2·4H2The mass ratio of O is 1:3 ~ 2:1.
Further, in step 4, the reaction time is 10 ~ 24 h.
Compared with prior art, the invention has the advantages that
(1) preparation method of the present invention avoids cumbersome multicomponent material synthesis step, it is only necessary to mixed by stirring
After conjunction, it can be synthesized using one pot of hydrothermal synthesis technology.
(2) as long as the present invention is environmentally protective by routine operations, simple processes such as simple centrifuge washing, filterings.
(3) functionalization graphene nano hybridization sensing material prepared by the present invention can be easily by adjusting reaction
Temperature and burden control Fe1.833(OH)0.5O2.5Load capacity and size on NG, and then adjust the catalytic performance of hybrid material.
(4) introducing of PDDA effectively improves the dispersion performance of sensing material, it is made to be more conducive to it as electrification
Learn sensing material.Preparation method of the invention close to Green Chemistry requirement, it is easily controllable, be conducive to industrialized mass production.
The embodiment of the present invention is described in further detail with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is diallyl dimethyl ammoniumchloride prepared by the present invention (PDDA) cladding Fe1.833(OH)0.5O2.5Load nitrogen
The preparation process schematic diagram of doped graphene (NG) nano combined sensing material.
Fig. 2 is the infrared spectrogram of the nano combined sensing material synthesized in the embodiment of the present invention 1.
Fig. 3 is the TEM photo of the nano combined sensing material synthesized in the embodiment of the present invention 1.
Fig. 4 is the nano combined sensing material modified glassy carbon electrode pair of functionalization graphene in invention embodiment 1
In the i-t curve of nitrite.
Specific embodiment
The embodiment of the present invention is described in further detail with reference to the accompanying drawing, the present embodiment is with the technology of the present invention side
Implemented under the premise of case, the detailed implementation method and specific operation process are given, but protection scope of the present invention is unlimited
In following embodiments.
As shown in Figure 1, a kind of Fe of diallyl dimethyl ammoniumchloride (PDDA) cladding1.833(OH)0.5O2.5Load nitrogen
Doped graphene (NG) nano combined sensing material and preparation method thereof, method includes the following steps:
Step 1 uses improved Hummers method to prepare oxidation graphite solid with natural graphite powder；
Under step 2, ultrasound, the alcohol suspension of graphene oxide is prepared, the ratio of graphite oxide and alcohol solvent is 1 ~
0.2 mg/ml；Ultrasonic time is 5 ~ 24 h；
Stirred evenly in step 3, the suspension being added in PDDA to step 2, the ratio of graphite oxide and PDDA be 1:1 ~
1:10 mg/μl；FeCl is added2·4H2O is stirred evenly into suspension, graphite oxide and FeCl2·4H2The mass ratio of O is 1: 3
~ 2 : 1 mg/mg；
Step 4, mixture and NH by step 33·H2It after O mixing, is quickly charged in hydrothermal reaction kettle, heating reaction；Oxygen
Graphite and NH3·H2The ratio of O is 1:1 ~ 1:5 mg/ μ l；Reaction temperature is 160 ~ 200 DEG C；Reaction time is 10 ~ 24
h；
The Fe of diallyl dimethyl ammoniumchloride (PDDA) cladding is obtained after step 5, washing, drying1.833(OH)0.5O2.5Load nitrogen-doped graphene (NG) nano combined sensing material.
Embodiment 1
The first step, the preparation of oxidation graphite solid；
It is with the 30 ml concentrated sulfuric acids, 10 g potassium peroxydisulfates and 10 g phosphorus pentoxides that 20 g natural graphites are pre- at 80 DEG C
After oxidation, pH=7 are washed to, air drying is stand-by overnight；
The 460 ml concentrated sulfuric acids are cooled to 0 DEG C or so, then by 20 g pre-oxidize graphite be added thereto, slowly plus
Enter 60 g potassium permanganate, so that system temperature is no more than 20 DEG C, 35 DEG C are warming up to after addition, after stirring 2 h, and point
It criticizes and is slowly added into 920 ml deionized waters, so that system temperature is no more than 98 DEG C, be stirred for after 15 minutes, 2.8 L are added and go
30 % hydrogen peroxide of ionized water and 50 ml.Obtained glassy yellow suspension is depressurized and is filtered, washing.Until not having in filtrate
Sulfate ion, and when being in neutrality, product is dried in 60 DEG C of vacuum, obtains oxidation graphite solid；
50 mg graphite oxide powder are packed into round-bottomed flask, add 70 ml alcohol solvents, 10 h of ultrasound by second step
Afterwards, the suspension of graphene oxide (GO) is obtained；
Third step, 400 μ L PDDA of addition after mixing evenly, add 0.05 g into the suspension in step 2
FeCl2·4H2O is stirred evenly into suspension;
4th step, by the mixture of step 3 and 100 μ l NH3·H2After O mixing, it is quickly charged in hydrothermal reaction kettle,
12 h are reacted in 180 DEG C of heating；
5th step is filtered the crude product that the 4th step obtains, washing, after dry, obtains polydiene after washing, drying
The Fe of diallyidimethylammonium chloride (PDDA) cladding1.833(OH)0.5O2.5Load nitrogen-doped graphene (NG) nano combined sensing material
Material.
The infrared spectroscopy of the nano combined sensing material of functionalization graphene is as shown in Figure 2, it was demonstrated that the nano-hybrid material is
Success synthesizes.
The TEM figure of the nano combined sensing material of functionalization graphene is as shown in Figure 3, it was demonstrated that the nano-hybrid material has succeeded
Synthesis.
I-t curve such as Fig. 4 institute of the nano combined sensing material modified glassy carbon electrode of functionalization graphene for nitrite
Show, it was demonstrated that the nano-hybrid material responds nitrite with good electro-catalysis.
Embodiment 2
The first step, with step 1 in embodiment 1.
50 mg graphite oxide powder are packed into round-bottomed flask, add 50 ml alcohol solvents, 24 h of ultrasound by second step
Afterwards, the suspension of graphene oxide (GO) is obtained；
Third step, 500 μ l PDDA of addition after mixing evenly, add 0.15 g into the suspension in step 2
FeCl2·4H2O is stirred evenly into suspension;
4th step, by the mixture of step 3 and 250 μ l NH3·H2After O mixing, it is quickly charged in hydrothermal reaction kettle,
12 h are reacted in 180 DEG C of heating；
5th step, with step 5 in embodiment 1.
Embodiment 3
The first step, with step 1 in embodiment 1.
50 mg graphite oxide powder are packed into round-bottomed flask, add 100 ml alcohol solvents, 5 h of ultrasound by second step
Afterwards, the suspension of graphene oxide (GO) is obtained；
Third step, 50 μ l PDDA of addition after mixing evenly, add 0.025 g into the suspension in step 2
FeCl2·4H2O is stirred evenly into suspension;
4th step, by the mixture of step 3 and 150 μ l NH3·H2After O mixing, it is quickly charged in hydrothermal reaction kettle,
24 h are reacted in 160 DEG C of heating；
5th step, with step 5 in embodiment 1.
Embodiment 4
The first step, with step 1 in embodiment 1.
50 mg graphite oxide powder are packed into round-bottomed flask, add 70 ml alcohol solvents, 15 h of ultrasound by second step
Afterwards, the suspension of graphene oxide (GO) is obtained；
Third step, 400 μ l PDDA of addition after mixing evenly, add 0.10 g into the suspension in step 2
FeCl2·4H2O is stirred evenly into suspension;
4th step, by the mixture of step 3 and 50 μ l NH3·H2After O mixing, it is quickly charged in hydrothermal reaction kettle,
12 h are reacted in 200 DEG C of heating；
5th step, with step 5 in embodiment 1.
Embodiment 5
The first step, with step 1 in embodiment 1.
50 mg graphite oxide powder are packed into round-bottomed flask, add 80 ml alcohol solvents, 18 h of ultrasound by second step
Afterwards, the suspension of graphene oxide (GO) is obtained；
Third step, 300 μ l PDDA of addition after mixing evenly, add 0.10 g into the suspension in step 2
FeCl2·4H2O is stirred evenly into suspension;
4th step, by the mixture of step 3 and 200 μ l NH3·H2After O mixing, it is quickly charged in hydrothermal reaction kettle,
12 h are reacted in 180 DEG C of heating；
5th step, with step 5 in embodiment 1.
Embodiment 6
The first to two step, with step 1 in embodiment 1 to two.
Third step, 400 μ L PDDA of addition after mixing evenly, add 0.025 g into the suspension in step 2
FeCl2·4H2O is stirred evenly into suspension;
Four to five step, with step 4 in embodiment 1 to five.
Embodiment 7
The first to two step, with step 1 in embodiment 1 to two.
Third step, 400 μ L PDDA of addition after mixing evenly, add 0.10 g into the suspension in step 2
FeCl2·4H2O is stirred evenly into suspension;
Four to five step, with step 4 in embodiment 1 to five.
Embodiment 8
The first to two step, with step 1 in embodiment 1 to two.
Third step, 400 μ L PDDA of addition after mixing evenly, add 0.15 g into the suspension in step 2
FeCl2·4H2O is stirred evenly into suspension;
Four to five step, with step 4 in embodiment 1 to five.
Embodiment 9
The first to three step, with step 1 in embodiment 1 to three.
4th step, by the mixture of step 3 and 50 μ l NH3·H2After O mixing, it is quickly charged in hydrothermal reaction kettle,
12 h are reacted in 180 DEG C of heating；
5th step, with step 5 in embodiment 1.
Embodiment 10
The first to three step, with step 1 in embodiment 1 to three.
4th step, by the mixture of step 3 and 150 μ l NH3·H2After O mixing, it is quickly charged in hydrothermal reaction kettle,
12 h are reacted in 180 DEG C of heating；
5th step, with step 5 in embodiment 1.
Embodiment 11
The first to three step, with step 1 in embodiment 1 to three.
4th step, by the mixture of step 3 and 200 μ l NH3·H2After O mixing, it is quickly charged in hydrothermal reaction kettle,
12 h are reacted in 180 DEG C of heating；
5th step, with step 5 in embodiment 1.
Embodiment 12
The first to three step, with step 1 in embodiment 1 to three.
4th step, by the mixture of step 3 and 250 μ l NH3·H2After O mixing, it is quickly charged in hydrothermal reaction kettle,
12 h are reacted in 180 DEG C of heating；
5th step, with step 5 in embodiment 1.
The invention avoids cumbersome multicomponent material synthesis steps, it is only necessary to after mixing by stirring, utilize one pot of hydro-thermal
Synthetic technology can synthesize.In the synthesis process include nano metal particles growth in situ, the N doping of graphene oxide and
The cladding of PDDA.After synthesis, as long as can be prepared by routine operations such as simple centrifuge washing, filterings.This hair simultaneously
The functionalization graphene nano hybridization sensing material of bright preparation can be easily by adjusting reaction temperature and burden control
Fe1.833(OH)0.5O2.5Load capacity and size on NG, and then adjust the catalytic performance of hybrid material.The introducing of PDDA is effective
Ground improves the dispersion performance of sensing material, it is made to be more conducive to it as electrochemical sensing material.Preparation side of the invention
The requirement of the nearly Green Chemistry of the choice specimen of calligraphy, it is easily controllable, be conducive to industrialized mass production.
Claims (5)
1. a kind of Fe of diallyl dimethyl ammoniumchloride cladding1.833(OH)0.5O2.5It is nano combined to load nitrogen-doped graphene
Sensing material, which is characterized in that prepared by following steps:
Step 1 uses improved Hummers method to prepare oxidation graphite solid with natural graphite powder；
Under step 2, ultrasound, the alcohol suspension of graphene oxide is prepared using oxidation graphite solid, graphite oxide and ethyl alcohol
Than for 1 ~ 0.2 mg/ml；
Step 3, addition diallyl dimethyl ammoniumchloride PDDA are stirred evenly into the suspension in step 2, are continuously added
FeCl2·4H2O is stirred evenly, and the ratio of graphite oxide and PDDA are 1:1 ~ 1:10 mg/ μ l；Graphite oxide and FeCl2·4H2O
Mass ratio be 1:3 ~ 2:1；
Step 4, mixture and NH by step 33·H210 ~ 24 h of hydro-thermal reaction is carried out immediately after O mixing, wherein oxidation stone
Ink and NH3·H2The ratio of O is 1:1 ~ 1:5 mg/ μ l；Reaction temperature is 160 ~ 200 DEG C；
The sensing material is obtained after step 5, washing, drying.
2. sensing material as described in claim 1, which is characterized in that in step 2, ultrasonic time is 5 ~ 24 h.
3. the preparation method of the sensing material as described in claim 1-2 is any.
4. the application of the sensing material as described in claim 1-2 is any.
5. application as claimed in claim 4, which is characterized in that the sensing material is applied to the electrochemistry of nitrite
In catalysis detecting and analysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610510423.7A CN107561130B (en) | 2016-07-01 | 2016-07-01 | The Fe of diallyl dimethyl ammoniumchloride cladding1.833(OH)0.5O2.5Load nano combined sensing material of nitrogen-doped graphene and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610510423.7A CN107561130B (en) | 2016-07-01 | 2016-07-01 | The Fe of diallyl dimethyl ammoniumchloride cladding1.833(OH)0.5O2.5Load nano combined sensing material of nitrogen-doped graphene and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107561130A CN107561130A (en) | 2018-01-09 |
| CN107561130B true CN107561130B (en) | 2019-07-16 |
Family
ID=60969118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610510423.7A Active CN107561130B (en) | 2016-07-01 | 2016-07-01 | The Fe of diallyl dimethyl ammoniumchloride cladding1.833(OH)0.5O2.5Load nano combined sensing material of nitrogen-doped graphene and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107561130B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358100A (en) * | 2018-08-23 | 2019-02-19 | 南京大学盐城环保技术与工程研究院 | Ethanol amine and the graphene-based nano combined sensing material of Nano silver grain difunctionalization support type and preparation method thereof |
| CN109317201A (en) * | 2018-08-23 | 2019-02-12 | 南京理工大学 | Cyclodextrin modified organic aryne nanobelt functionalization nitrogen-doped graphene electrochemical sensing material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145282A (en) * | 2010-05-28 | 2011-08-10 | 南京理工大学 | Preparation method of graphene-supported nano MnOOH composite material |
| CN104984693A (en) * | 2015-07-24 | 2015-10-21 | 扬州大学 | Preparation method of nanometer magnetism capsule |
-
2016
- 2016-07-01 CN CN201610510423.7A patent/CN107561130B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145282A (en) * | 2010-05-28 | 2011-08-10 | 南京理工大学 | Preparation method of graphene-supported nano MnOOH composite material |
| CN104984693A (en) * | 2015-07-24 | 2015-10-21 | 扬州大学 | Preparation method of nanometer magnetism capsule |
Non-Patent Citations (3)
| Title |
|---|
| One-pot preparation of Au-RGO/PDDA nanocomposites and their application for nitrite sensing;Shoufeng Jiao 等;《Sensors and Actuators B: Chemical》;20141113;第208卷;第36-38页 |
| Solvent-free mechanochemical synthesis of graphene oxide and Fe3O4–reduced grapheme oxide nanocomposites for sensitive detection of nitrite;G. Bharath 等;《Journal of Materials Chemistry A》;20150617;第5卷;全文 |
| The Effect of Bio-Coal on the Carbothermic Reduction of Laterite Ores;Guan-Jhou Chen 等;《Materials Transactions》;20150325;第56卷(第4期);第550页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107561130A (en) | 2018-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | A flower-like MoS2-decorated MgFe2O4 nanocomposite: Mimicking peroxidase and colorimetric detection of H2O2 and glucose | |
| Arif et al. | Synthesis and characterization of layered Nb2C MXene/ZnS nanocomposites for highly selective electrochemical sensing of dopamine | |
| Ma et al. | Preparation of spinel nickel-cobalt oxide nanowrinkles/reduced graphene oxide hybrid for nonenzymatic glucose detection at physiological level | |
| Zhou et al. | The characteristics of highly ordered mesoporous carbons as electrode material for electrochemical sensing as compared with carbon nanotubes | |
| Wang et al. | Protonated carbon nitride induced hierarchically ordered Fe2O3/HC3N4/rGO architecture with enhanced electrochemical sensing of nitrite | |
| Elmaci et al. | Water oxidation catalysis by birnessite@ iron oxide core–shell nanocomposites | |
| Zhang et al. | Au nanocages for highly sensitive and selective detection of H2O2 | |
| Liu et al. | Nitrogen functionlized graphene quantum dots/3D bismuth oxyiodine hybrid hollow microspheres as remarkable photoelectrode for photoelectrochemical sensing of chlopyrifos | |
| CN104857954B (en) | Substrate high-affinity graphene oxide-loaded nano platinum Mimetic enzyme and preparation method thereof | |
| Zhao et al. | In situ co-precipitation for the synthesis of an Ag/AgBr/Bi5O7I heterojunction for enhanced visible-light photocatalysis | |
| CN105833834A (en) | Reduced graphene/ferroferric oxide/precious metal nanocomposite and preparation method and application thereof | |
| Khan et al. | Fabrication of non-enzymatic sensor using Co doped ZnO nanoparticles as a marker of H2O2 | |
| Yan et al. | Construction of 2D/2D Bi2WO6/BN heterojunction for effective improvement on photocatalytic degradation of tetracycline | |
| CN102346148A (en) | Method for detecting surface enhanced Raman scattering of cancer cells based on self-assembled material | |
| CN107963671B (en) | Support type composite and its preparation method and application | |
| Ba et al. | Facile synthesis of 3D CuO nanowire bundle and its excellent gas sensing and electrochemical sensing properties | |
| Arul et al. | Ultrasonic synthesis of bismuth-organic framework intercalated carbon nanofibers: A dual electrocatalyst for trace-level monitoring of nitro hazards | |
| CN109876810A (en) | A kind of preparation method and applications of magnetism microalgae base charcoal | |
| Wang et al. | Electrocatalytic oxidation and detection of N-acetylcysteine based on magnetite/reduced graphene oxide composite-modified glassy carbon electrode | |
| CN102175735A (en) | Au NPs-CeO2@PANI (polyaniline) nanocomposite, preparation method thereof and glucose biological sensor manufactured by utilizing nanocomposite | |
| CN107561130B (en) | The Fe of diallyl dimethyl ammoniumchloride cladding1.833(OH)0.5O2.5Load nano combined sensing material of nitrogen-doped graphene and preparation method thereof | |
| Yang et al. | Nanorods of a new metal–biomolecule coordination polymer showing novel bidirectional electrocatalytic activity and excellent performance in electrochemical sensing | |
| Duanghathaipornsuk et al. | The effects of size and content of cerium oxide nanoparticles on a composite sensor for hydroxyl radicals detection | |
| Pal et al. | Electrocatalytic activity of cobalt Schiff base complex immobilized silica materials towards oxygen reduction and hydrazine oxidation | |
| Pandey et al. | Functional alkoxysilane mediated controlled synthesis of Prussian blue nanoparticles, enabling silica alginate bead development; nanomaterial for selective electrochemical sensing |
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 |