CN106000381A - Graphene-wrapping zinc oxide three-dimensional composite material catalyst and preparation method and application thereof - Google Patents
Graphene-wrapping zinc oxide three-dimensional composite material catalyst and preparation method and application thereof Download PDFInfo
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- CN106000381A CN106000381A CN201610435909.9A CN201610435909A CN106000381A CN 106000381 A CN106000381 A CN 106000381A CN 201610435909 A CN201610435909 A CN 201610435909A CN 106000381 A CN106000381 A CN 106000381A
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- 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
- B01J23/06—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of zinc, cadmium or mercury
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/333—Ion-selective electrodes or membranes
Abstract
The invention relates to a graphene-wrapping zinc oxide three-dimensional composite material catalyst and a preparation method and application thereof. The mass percent of zinc oxide in the three-dimensional composite material catalyst is 66-70%. The graphene-wrapping zinc oxide in the composite material catalyst is in a three-dimensional shuttle shape. The preparation method comprises the steps that zinc foil is immersed into a graphene oxide water solution, a hydrothermal reaction is carried out at the temperature of 80-100 DEG C for 0.5-1 hour, ultrasonic concussion, washing and drying are carried out, and the graphene-wrapping zinc oxide three-dimensional composite material catalyst is obtained. The surface of a glassy carbon electrode is decorated with the composite material so that an electrochemical transducer can be formed, the composite material is directly applied to sensitivity detection of chloramphenicol, and the lower limit of detection can reach 0.5 micrometer. According to the grephene-wrapping zinc oxide three-dimensional composite material catalyst and the preparation method and application thereof, operation is easy and quick, and the prepared three-dimensional composite material can be applied to electrochemical sensing of chloramphenicol, has the advantages of being high in sensitivity, good in stability and capable of being repeatedly used and has potential application prospects in an electrochemical biosensor.
Description
Technical field
The invention belongs to preparation and the electrochemical sensor field of catalyst material, particularly to a kind of Graphene parcel zinc oxide three
Dimension composite catalyst and preparation method and application.
Background technology
Electrochemical sensor is that in chemical sensor, a kind of change based on electrochemical signals such as current potential, electric current, resistance etc. detects
Sensitive and the simple method of material concentration.Have and be prone to automatization, miniaturization and intelligentized advantage.Eelctro-catalyst is then
Critical material in electrochemical sensor, the preparation method therefore developing efficient and stable composite eelctro-catalyst has important
Scientific meaning and using value.Semiconductor nano material (such as Graphene, metal-oxide etc.) is utilized to modify inert electrode surface
The electrochemical sensor constructed can further improve the sensitivity of analysis method, selectivity and stability etc..
Chloromycetin has high antibacterial activity and low cost, since generation nineteen fifty, has been widely used in treating zoonotic
Antibiotic medicine.But research finds that the abuse of chloromycetin can cause the collapse of aplastic anemia, cardiovascular, leukemia and ash baby
The diseases such as syndrome, the detection method developing chloromycetin the most in recent years enjoys people to pay close attention in order to the service condition monitoring antibiotic.
Summary of the invention
The technical problem to be solved is to provide a kind of Graphene parcel zinc oxide three-dimensional composite material catalyst and preparation thereof
Methods and applications, utilize zinc paper tinsel hydrothermal reduction graphene oxide one-step method to be prepared for graphene coated shuttle shape zinc oxide three-dimensional composite wood
Material catalyst, had both had simple and quick, environmental protection, also can improve the electrochemical sensing constructed outside the feature prepared of magnanimity
Device sensitivity, stability and durability, and may be directly applied to chloramphenicol concentration is measured.
A kind of Graphene parcel zinc oxide three-dimensional composite material catalyst of the present invention, aoxidizes in described three-dimensional composite material catalyst
The mass percent of zinc is 66-70%；In described composite catalyst, the zinc oxide of graphene coated is three-dimensional shuttle shape, a length of
300-1000nm, a width of 50-300nm.
A kind of preparation method of the Graphene parcel zinc oxide three-dimensional composite material catalyst of the present invention, including:
Zinc paper tinsel is immersed in graphene oxide water solution, hydro-thermal reaction 0.5-1 hour at 80-100 DEG C, surface is sunk with black
The zinc paper tinsel ultrasonic vibration formed sediment, washing, it is dried, obtains graphene coated zinc oxide three-dimensional composite material catalyst (powder)；Its
In, in three-dimensional composite material catalyst, the mass percent of zinc oxide is 66-70%；Graphene bag in described composite catalyst
The zinc oxide covered is three-dimensional shuttle shape.
The concentration of described graphene oxide water solution is 0.5～1mg/mL；Zinc paper tinsel thickness is 0.5～1mm.
The area of described zinc paper tinsel and the volume ratio of graphene oxide solution are 3cm2: 20mL.
Described graphene oxide preparation method includes: by 0.5-1g graphite powder and commercially available concentrated nitric acid (1.5-3mL) and concentrated sulphuric acid (15-30
ML) mixing in ice-water bath, stirring is lower adds 2-5g potassium permanganate, is progressively warming up to 45 DEG C and 90 DEG C each reactions 1 little
Time, cooling, stand overnight；By gained washing of precipitate, it is drying to obtain graphene oxide solid.
The ratio of described graphite, potassium permanganate, concentrated sulphuric acid and concentrated nitric acid is 1g:5g:30mL:3mL.
Described washing is washing with alcohol 3 times.
Described graphene oxide 10-30mg is dispersed in 20-60mL distilled water for ultrasonic 30 minutes, transfers them to 50-100
In mL reactor, and zinc paper tinsel is immersed in above-mentioned graphene oxide water solution, be placed in baking oven at 80-100C ° (occurrence)
Lower insulation 0.5-1h redox graphene；Centrifuge washing after cooling, dries, obtains graphene coated zinc oxide three-dimensional composite wood
Material catalyst 3DRGO-ZnO.
The application of the Graphene parcel zinc oxide three-dimensional composite material catalyst of the present invention, is applied to prepare electrochemical sensor detection
Chloromycetin also optimizes testing conditions.
The working concentration scope of described electrochemical sensor is 1-113 μM, and Monitoring lower-cut is 0.5 μM, can be directly exposed to air
Middle preservation.
Described electrochemical sensor detection chloromycetin of preparing includes:
(1) by graphene coated zinc oxide three-dimensional composite material catalyst ultrasonic disperse in ethanol, dispersion liquid is obtained；Then turn
Move to glass-carbon electrode active surface, be dried, obtain the glass-carbon electrode that graphene coated zinc oxide three-dimensional composite material catalyst is modified；
(2) so that in step (1), the glass-carbon electrode of modification is as working electrode, saturated calomel electrode is reference electrode, and platinum filament is auxiliary
Helping electrode, test end liquid is phosphate buffer；Employing method differential pulse voltammetry volt-ampere analysis；By to chloromycetin standard solution
Testing, with chloramphenicol concentration as abscissa, current intensity is vertical coordinate, and Criterion working curve passes through current intensity
Numerical value can calculate the concentration of chloromycetin in sample.
Described graphene coated zinc oxide three-dimensional composite material catalyst be ultrasonic disperse in ethanol, concentration is 1-2mg/mL, logical
Cross liquid-transfering gun to pipette 10-20 μ L and be transferred to glass-carbon electrode active surface, prepare electrochemical sensor through infrared lamp rapid draing.
Phosphate buffer pH=7.4 in described step (2), concentration is 5-10mM.
In described step (2), test voltage scope is-0.4V to-0.7V.
The present invention is quickly prepared for graphene coated zinc oxide three-dimensional composite material catalyst by hydro-thermal method, and is applied to construct chlorine
Mycin electrochemical sensor；Three-dimensional composite material method for preparing catalyst time is short, efficiency is high for this, can produce in a large number and need not
Any organic reducing agent is used to decrease pollution；The chloromycetin electrochemical sensor of exploitation has highly sensitive, the detection range of linearity
Wide, good stability also the feature such as can reuse for a long time, has potential application foreground in non-enzymatic electrochemica biological sensor.
Beneficial effect
(1) present invention uses controlled, environment friendly and pollution-free zinc paper tinsel easy and simple to handle as the reducing agent of graphene oxide, and fast restore is simultaneously
Cladding shuttle shape zinc oxide forms composite, can magnanimity prepare；
(2) present invention use can the graphene coated zinc oxide three-dimensional composite material modified electrode prepared of magnanimity, improve the activity of electrode
Area and detection sensitivity；
(3) electrochemical sensor that the present invention constructs based on graphene coated zinc oxide three-dimensional composite material measures chloromycetin, has sensitive
Degree height, range of linearity width, good stability and reusable feature.
Accompanying drawing explanation
Fig. 1 is the transmission electron microscope picture of graphene coated zinc oxide three-dimensional composite material catalyst in embodiment 2；
Fig. 2 is the differential pulse voltammetry volt-ampere curve that in embodiment 3, chloromycetin is responded by Different electrodes；
Fig. 3 is that the electrochemical sensor prepared based on graphene coated zinc oxide three-dimensional composite material catalyst in embodiment 3 is dense to difference
Differential pulse voltammetry volt-ampere curve (a) of degree chloromycetin response, and corresponding linear relationship (b) between current intensity and chloramphenicol concentration；
Fig. 4 is that the electrochemical sensor prepared based on graphene coated zinc oxide three-dimensional composite material catalyst in embodiment 4 is exposed to sky
Gas preserves the stability of one month.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.Should be understood that these embodiments be merely to illustrate the present invention and not
For limiting the scope of the present invention.In addition, it is to be understood that after having read the content that the present invention lectures, those skilled in the art can
To make various changes or modifications the present invention, these equivalent form of values fall within the application appended claims limited range equally.
Embodiment 1
The preparation of graphene oxide.
1g graphite powder is mixed with commercially available concentrated nitric acid (3mL) and concentrated sulphuric acid (30mL) in ice-water bath, under stirring, adds 2-5g
Potassium permanganate, is warming up to 45 DEG C and reacts 1 hour, then is warming up to 90 DEG C of reactions 1 hour, is cooled to room temperature, stands overnight；
It is dried 24 hours in 40C ° after gained precipitation is used distilled water wash 3 times, washing with alcohol 1 time, obtains graphene oxide solid
Body.
Embodiment 2
The preparation of graphene coated zinc oxide three-dimensional composite material catalyst (3DRGO-ZnO).
Weigh graphene oxide 30mg prepared in embodiment 1 and be dispersed in 60mL distilled water for ultrasonic 30 minutes,
Transfer them in 100mL reactor, and zinc paper tinsel is immersed in above-mentioned graphene oxide water solution, be placed in baking oven at 100C °
Lower insulation 1h redox graphene；With tweezers, zinc metal sheet is transferred in clean beaker after being cooled to room temperature, adds 20mL
Distilled water sonic oscillation, gained solution centrifugal, solid distilled water wash 3 times, washing with alcohol is placed in 40C ° of baking oven for 1 time
Being dried 24 hours, as shown in TEM figure (Fig. 1), gained solid is graphene coated zinc oxide three-dimensional composite material catalyst
3DRGO-ZnO。
As a comparison, not zincification paper tinsel, utilize hydrazine hydrate hydrothermal reduction graphene oxide to be prepared for graphen catalyst under similarity condition
Material (RGO).
Embodiment 3
Electrochemical sensor preparation and the quantitative determination to chloromycetin.
Weigh graphene coated zinc oxide three-dimensional composite material catalyst 3DRGO-ZnO 2mg prepared in embodiment 2 and surpass
Sound is dispersed in 1mL dehydrated alcohol for 5 minutes, and compound concentration is the catalyst dispersion of 2.0mg/mL, turns with liquid-transfering gun
Moving 10 μ L dispersion liquids to the active face of clean glass-carbon electrode and utilizes infrared lamp to dry, and obtains electrochemical sensor.Respectively with
Saturated calomel electrode is reference electrode, and platinum filament is auxiliary electrode, and phosphate buffer solution (pH=7.4) is for measuring medium, at-0.4V
Measure under voltage range to-0.7V, use Differential Pulse Voltammetry method that chloromycetin standard solution is carried out Electrochemical Scanning, it is seen that
Graphene coated zinc oxide three-dimensional composite material catalyst 3DRGO-ZnO is than grapheme material (RGO) and naked glass-carbon electrode
(GCE) there is the strongest current-responsive intensity (Fig. 2), show that 3DRGO-ZnO prepared by the present invention is greatly improved detection
Sensitivity.
Further by gradient sample introduction, recording voltage-current curve, it is seen that with the increase of chloramphenicol concentration, response current intensity is also
Increase (Fig. 3 a).With-0.56V place, chloramphenicol concentration is measured current value utilizes software Origin8 to be fitted, dense at chloromycetin
Degree obtains a linear work curve in the range of 1-113 μM, and linear regression constant is 0.9978, and equation of linear regression is y=-0.11x
-8.53, y represent current intensity, and x represents chloramphenicol concentration, and Monitoring lower-cut is 0.5 μM.Accordingly can be strong by measuring electric current
Degree is calculated the concentration (Fig. 3 b) of chloromycetin.
Embodiment 4
The electrochemical gaging of chloramphenicol concentration in the stability of electrochemical sensor and actual sample.
It is directly exposed in air preserve one month by the electrochemical sensor of preparation in embodiment 3, tested 50 every 5 days
The response current intensity of the chloromycetin standard solution of μm ol/L.As shown in Figure 4, using one month continuously, current intensity only decays
About 0.6%, it is seen that this electrochemical sensor has good stability and reusability.
The electrochemical gaging of chloramphenicol concentration in actual sample, specific practice is as follows: by commercially available Chloramphenicol Eye Drop PBS (pH
=7.4) directly measure current value y according to step in embodiment 3 after buffer solution dilutes 300 times, substitute into equation of linear regression y=
Can calculate Chloramphenicol In Chloramphenicol Eye Drops content x in-0.11x-8.53 is 26 μMs, and three times measurement standard deviation is 2%,
Being equivalent to the concentration of chloromycetin in eye drop is 7.8mM, consistent with the concentration 7.7mM result that producer provides, it is seen that this electrification
Learn sensor have be applied to actual sample analyze in prospect.
Claims (10)
1. a Graphene parcel zinc oxide three-dimensional composite material catalyst, it is characterised in that in described three-dimensional composite material catalyst
The mass percent of zinc oxide is 66-70%；In composite catalyst, the zinc oxide of graphene coated is three-dimensional shuttle shape.
A kind of Graphene parcel zinc oxide three-dimensional composite material catalyst the most according to claim 1, it is characterised in that described
Three-dimensional shuttle shape design parameter is: long 300-1000nm, wide 50-300nm.
3. a preparation method for Graphene parcel zinc oxide three-dimensional composite material catalyst, including:
Zinc paper tinsel is immersed in graphene oxide water solution, hydro-thermal reaction 0.5-1 hour at 80-100 DEG C, ultrasonic vibration, washing,
It is dried, obtains graphene coated zinc oxide three-dimensional composite material catalyst；Wherein, zinc oxide in three-dimensional composite material catalyst
Mass percent is 66-70%；In composite catalyst, the zinc oxide of graphene coated is three-dimensional shuttle shape.
The preparation method of a kind of Graphene the most according to claim 3 parcel zinc oxide three-dimensional composite material catalyst, its feature
Being, the concentration of described graphene oxide water solution is 0.5～1mg/mL；Zinc paper tinsel thickness is 0.5～1mm.
The preparation method of a kind of Graphene the most according to claim 3 parcel zinc oxide three-dimensional composite material catalyst, its feature
Being, the area of described zinc paper tinsel and the volume ratio of graphene oxide solution are 3cm2: 20mL.
The preparation method of a kind of Graphene the most according to claim 3 parcel zinc oxide three-dimensional composite material catalyst, its feature
Being, described washing is washing with alcohol 3 times.
7. the application of a Graphene as claimed in claim 1 parcel zinc oxide three-dimensional composite material catalyst, it is characterised in that
It is applied to prepare electrochemical sensor detection chloromycetin and optimize testing conditions.
The application of a kind of Graphene the most according to claim 7 parcel zinc oxide three-dimensional composite material catalyst, it is characterised in that
The working concentration scope of described electrochemical sensor is 1-113 μM, and Monitoring lower-cut is 0.5 μM.
The application of a kind of Graphene the most according to claim 7 parcel zinc oxide three-dimensional composite material catalyst, it is characterised in that
Described electrochemical sensor detection chloromycetin of preparing includes:
(1) by graphene coated zinc oxide three-dimensional composite material catalyst ultrasonic disperse in ethanol, dispersion liquid is obtained；It is then transferred to
Glass-carbon electrode active surface, is dried, and obtains the glass-carbon electrode that graphene coated zinc oxide three-dimensional composite material catalyst is modified；
(2) so that in step (1), the glass-carbon electrode of modification is as working electrode, saturated calomel electrode is reference electrode, and platinum filament is auxiliary electricity
Pole, test end liquid is phosphate buffer；Use differential pulse voltammetry volt-ampere analysis, Criterion working curve, be calculated sample
The concentration of chloromycetin in product.
The application of a kind of Graphene the most according to claim 9 parcel zinc oxide three-dimensional composite material catalyst, it is characterised in that
Phosphate buffer pH=7.4 in described step (2), concentration is 5-10mM.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596674A (en) * | 2016-12-19 | 2017-04-26 | 哈尔滨理工大学 | Preparation of zinc oxide nanorod-graphene nanosheet composite |
| CN110627108A (en) * | 2019-09-27 | 2019-12-31 | 东华大学 | Zinc oxide/reduced graphene oxide composite material and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430401A (en) * | 2011-09-20 | 2012-05-02 | 上海大学 | Nanometer ZnO/graphene photo-catalyst and preparation method thereof |
| CN102658108A (en) * | 2012-05-04 | 2012-09-12 | 东南大学 | Method for preparing photocatalytic filtering membrane based on graphene/semiconductor by an electrospinning method |
| US20140183415A1 (en) * | 2012-12-31 | 2014-07-03 | Cheil Industries Inc. | Graphene-Based Composite and Method of Preparing the Same |
| JP2015142882A (en) * | 2014-01-31 | 2015-08-06 | 博 久保田 | Hydrogen formation catalyst |
-
2016
- 2016-06-17 CN CN201610435909.9A patent/CN106000381B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430401A (en) * | 2011-09-20 | 2012-05-02 | 上海大学 | Nanometer ZnO/graphene photo-catalyst and preparation method thereof |
| CN102658108A (en) * | 2012-05-04 | 2012-09-12 | 东南大学 | Method for preparing photocatalytic filtering membrane based on graphene/semiconductor by an electrospinning method |
| US20140183415A1 (en) * | 2012-12-31 | 2014-07-03 | Cheil Industries Inc. | Graphene-Based Composite and Method of Preparing the Same |
| JP2015142882A (en) * | 2014-01-31 | 2015-08-06 | 博 久保田 | Hydrogen formation catalyst |
Non-Patent Citations (3)
| Title |
|---|
| XUAN ZHANG等: "One-pot facile fabrication of graphene-zinc oxide composite and its enhanced sensitivity for simultaneous electrochemical detection of ascorbic acid, dopamine and uric acid", 《SENSORS AND ACTUATORS B:CHEMICAL》 * |
| 张永勇等: "ZnO/氧化石墨烯的制备及其对亚硝酸盐的光催化降解", 《化工环保》 * |
| 陈洪亮等: "石墨烯_氧化锌纳米棒复合材料的超声法制备及其光催化性能", 《功能材料》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596674A (en) * | 2016-12-19 | 2017-04-26 | 哈尔滨理工大学 | Preparation of zinc oxide nanorod-graphene nanosheet composite |
| CN106596674B (en) * | 2016-12-19 | 2019-02-12 | 哈尔滨理工大学 | A kind of preparation of zinc oxide nano rod-graphene nanometer sheet composite material |
| CN110627108A (en) * | 2019-09-27 | 2019-12-31 | 东华大学 | Zinc oxide/reduced graphene oxide composite material and preparation method and application thereof |
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