CN107315045A - The preparation and application of a kind of graphene/zinc oxide nano popped rice/ITO electrode - Google Patents

The preparation and application of a kind of graphene/zinc oxide nano popped rice/ITO electrode Download PDF

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CN107315045A
CN107315045A CN201710540089.4A CN201710540089A CN107315045A CN 107315045 A CN107315045 A CN 107315045A CN 201710540089 A CN201710540089 A CN 201710540089A CN 107315045 A CN107315045 A CN 107315045A
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zinc oxide
oxide nano
popped rice
ito
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岳红彦
王宝
高鑫
张宏杰
宋姗姗
关恩昊
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Harbin University of Science and Technology
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    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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    • G01N27/26Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416Systems
    • G01N27/48Systems using polarography, i.e. measuring changes in current under a slowly-varying voltage
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    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/28Electrolytic cell components
    • G01N27/30Electrodes, e.g. test electrodes; Half-cells
    • G01N27/307Disposable laminated or multilayered electrodes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/28Electrolytic cell components
    • G01N27/30Electrodes, e.g. test electrodes; Half-cells
    • G01N27/36Glass electrodes

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Abstract

The present invention relates to the preparation and application of a kind of graphene/zinc oxide nano popped rice/ITO electrode, belong to new function material and biology sensor detection technique field.Preparation method step includes:Hydrothermal synthesis method, automatic spraying process, chemical vapour deposition technique.The present invention is with electro-conductive glass(ITO)As substrate, zinc oxide nano popped rice is sprayed on ITO, and in its surface deposited graphite alkene.The graphene prepared/zinc oxide nano popped rice/ITO electrode is applied to field of biosensors, with high sensitivity, good selectivity is good, repeated and the advantages of good stability, solve current material and the problem of levodopa sensitivity is relatively low is detected in biological sensor.

Description

The preparation and application of a kind of graphene/zinc oxide nano popped rice/ITO electrode
Technical field
The present invention relates to the preparation and its application of a kind of graphene/zinc oxide nano popped rice/ITO electrode.
Background technology
Zinc oxide is a kind of Group II-VI semiconductor material, it is that zinc oxide nanowire has a morphology controllable and be easily-synthesized it is excellent Point, with excellent bio-compatibility, outside chemical stability, can be provided straight when biology sensor detects biomolecule Connect, quick electron channel.And the zinc oxide nano popped rice for the three-dimensional structure being made up of nano wire has big porosity and bigger Specific surface area, and with it is bigger with the contact area of solution.The method of conventional synthesizing zinc oxide nano flower is hydrothermal synthesis method, This method has cost low, the simple advantage of building-up process.
Graphene is a kind of two-dimentional carbon material of only individual layer atomic thickness, with excellent electric conductivity, mechanical performance and Chemical stability, in biomedicine, sensor, the field such as ultracapacitor has a wide range of applications.Stone was found since 2004 After black alkene, current main preparation methods have mechanical stripping method, chemical vapour deposition technique and reduction-oxidation graphite method.Wherein, it is chemical The suitable preparation structure of vapor deposition method is complete, high-quality graphene.
Parkinson's are a kind of common nervous system degeneration diseases, and topmost pathological change is substantia nigra of midbrain dopamine The denaturation of serotonergic neuron is dead, thus causes DOPAMINE CONTENT IN RABBIT to substantially reduce and cause a disease.Levodopa(L-dopa)Also known as it is left many Bar, can generate dopamine, to make up brain dopamine by blood cerebral disorders and in the presence of aromatic amino acid decarboxylase Deficiency, be a kind of antiparkinsonian drug, be mainly used to treat Parkinson disease.But, levodopa content is excessive in human body Toxic side effect can be produced.So, accurately content of the detection levodopa in human body has very important significance.
The content of the invention
The invention solves the problems that the easy Adsorption for Biomolecules of zinc oxide nano popped rice higher isoelectric point, also has its low electrical conductance, in life The problem of sensitivity is low during thing sensor application.Zinc oxide nano popped rice is prepared and then with automatic spraying process by oxygen by hydro-thermal method Change zinc nano flower to be sprayed on ITO, finally deposit a layer graphene on zinc oxide nano popped rice surface with chemical vapour deposition technique, obtain Graphene/zinc oxide nano popped rice/ITO electrode is obtained, for detecting levodopa.
A kind of preparation method of graphene that the present invention is provided/zinc oxide nano popped rice/ITO electrode is to enter according to the following steps OK:
First, hydrothermal synthesis method
1)The solvent zinc nitrate solution that compound concentration is 0.03mol/L~0.07mol/L respectively, 0.03mol/ are used as with distilled water L~0.07mol/L hexa solution, 0.03mol/L~0.07mol/L ammonia spirit and 3mmol/L~ 7mmol/L polyetherimide solution, and by four kinds of solution it is well mixed after with 450r/min~550r/min rotating speed magnetic force Stir 3 min~5min and obtain hydro-thermal reaction solution;
2)By step one 1)Obtained hydro-thermal reaction solution is poured into reactor, covers reactor lid, at 90 DEG C~120 DEG C 10~14h is reacted under temperature conditionss, then takes out and naturally cools to room temperature in atmosphere, zinc oxide nano popped rice is obtained, opens anti- Answer kettle distilled water that material clean is clean, and the zinc oxide nano popped rice after filtering is transferred in culture dish, be put into drying box In at 70 DEG C~90 DEG C dry 1 ~ 3h obtain zinc oxide nano popped rice;
2nd, automatic spraying process
1)The deionized water of 0.01g ~ 0.03g zinc oxide nano popped rice and 20mL is mixed to get zinc oxide nano popped rice suspension;
2)ITO is cleaned by ultrasonic after 20min in acetone soln, ethanol solution and deionized water respectively, at room temperature natural cooling Dry, six pieces of ITO electro-conductive glass are fixed in spraying equipment heating plate, ITO electro-conductive glass is pressed from both sides into electrode wires with adhesive tape Side is covered, it is ensured that electrode wires are directly contacted with ITO electro-conductive glass;
3)Finely dispersed zinc oxide nano popped rice suspension is placed in spray gun, zinc-oxide nano is prepared using automatic spraying process Flower/ITO electrode, whole spraying process is carried out under 10psi air inlet pressures, and the distance of nozzle to ITO is 15cm, and heating dish temperature is 100 DEG C, zinc oxide nano popped rice suspension is stirred continuously with mini-sized blender in spraying process;
3rd, chemical vapour deposition technique
By step 23)In obtained zinc oxide nano popped rice/ITO electrode be placed on quartz tube furnace gas outlet side, protected in argon gas 900 DEG C ~ 1100 DEG C are heated to from room temperature with 10 DEG C/min ~ 20 DEG C/min heating rate under shield, in 900 DEG C ~ 1100 DEG C conditions Lower insulation 40min ~ 60min, is passed through when temperature is 900 DEG C ~ 1100 DEG C into tube furnace with 10 sccm ~ 20sccm speed Methane gas, is then cooled to room with 10 DEG C/min ~ 20 DEG C/min cooldown rate by quartz tube furnace from 900 DEG C ~ 1100 DEG C Temperature, obtains graphene/zinc oxide nano popped rice/ITO electrode, wherein the flow velocity of the argon gas described in step 3 be 450sccm ~ 550sccm。
Advantages of the present invention:
1)The present invention prepares zinc oxide nano popped rice using hydrothermal synthesis method, is sprayed after then zinc oxide is mixed with deionized water Onto ito glass, finally a kind of high-ratio surface is obtained in zinc oxide nano popped rice surface deposited graphite alkene with chemical vapour deposition technique Product, graphene/zinc oxide nano popped rice/ITO electrode of high conductivity;
2)The zinc-oxide nano floral material that the present invention is prepared maintain the excellent biocompatibility of original zinc oxide and directly, Outside quick electron channel, the big specific surface area of zinc oxide nano popped rice makes the contact area of itself and solution become big, while utilizationization Learn vapour deposition process and compensate for zinc oxide nano popped rice low electrical conductance and biological adsorption in itself in zinc oxide surface coated graphite alkene Property, improve its chemical property so that the sensitivity of Electrochemical Detection levodopa reaches 0.32 μ A μM-1
Brief description of the drawings:
Fig. 1 is the stereoscan photograph that the zinc oxide nano popped rice that experiment is prepared amplifies 10000 times;
Fig. 2 is the stereoscan photograph that graphene/zinc oxide nano popped rice that experiment is prepared amplifies 10000 times;
Fig. 3 is the energy spectrum diagram of graphene/zinc oxide nano popped rice;
Fig. 4 is the Raman collection of illustrative plates of graphene/zinc oxide nano popped rice;
Fig. 5 is the differential pulse voltammetry curve of graphene/zinc oxide nano popped rice prepared by experiment;
The Linear Fit Chart of levodopa concentration and oxidation peak current when Fig. 6 is differential pulse method detection levodopa.
Embodiment
Embodiment one:A kind of preparation method of graphene/zinc-oxide nano/ITO electrode in present embodiment, tool Body is carried out according to the following steps:
First, hydrothermal synthesis method
1)The solvent zinc nitrate solution that compound concentration is 0.03mol/L~0.07mol/L respectively, 0.03mol/ are used as with distilled water L~0.07mol/L hexa solution, 0.03mol/L~0.07mol/L ammonia spirit and 3mmol/L~ 7mmol/L polyetherimide solution, and by four kinds of solution it is well mixed after with 450r/min~550r/min rotating speed magnetic force Stirring 3min~5min obtains hydro-thermal reaction solution;
2)By step one 1)Obtained hydro-thermal reaction solution is poured into reactor, covers reactor lid, at 90 DEG C~120 DEG C 10~14h is reacted under temperature conditionss, then takes out and naturally cools to room temperature in atmosphere, zinc oxide nano popped rice is obtained, opens anti- Answer kettle distilled water that material clean is clean, and the zinc oxide nano popped rice after filtering is transferred in culture dish, be put into drying box In at 70 DEG C~90 DEG C dry 1 ~ 3h obtain zinc oxide nano popped rice;
2nd, automatic spraying process
1)The deionized water of 0.01g ~ 0.03g zinc oxide nano popped rice and 20mL is mixed to get zinc oxide nano popped rice suspension;
2)ITO is cleaned by ultrasonic after 20min in acetone soln, ethanol solution and deionized water respectively, at room temperature natural cooling Dry, six pieces of ITO electro-conductive glass are fixed in spraying equipment heating plate, ITO electro-conductive glass is pressed from both sides into electrode wires with adhesive tape Side is covered, it is ensured that electrode wires are directly contacted with ITO electro-conductive glass;
3)Finely dispersed zinc oxide nano popped rice suspension is placed in spray gun, zinc-oxide nano is prepared using automatic spraying process Flower/ITO electrode, whole spraying process is carried out under 10psi air inlet pressures, and the distance of nozzle to ITO is 15cm, and heating dish temperature is 100 DEG C, zinc oxide nano popped rice suspension is stirred continuously with mini-sized blender in spraying process;
3rd, chemical vapour deposition technique
By step 23)In obtained zinc oxide nano popped rice/ITO electrode be placed on quartz tube furnace gas outlet side, protected in argon gas 900 DEG C ~ 1100 DEG C are heated to from room temperature with 10 DEG C/min ~ 20 DEG C/min heating rate under shield, in 900 DEG C ~ 1100 DEG C conditions Lower insulation 40min ~ 60min, is passed through when temperature is 900 DEG C ~ 1100 DEG C into tube furnace with 10 sccm ~ 20sccm speed Methane gas, is then cooled to room with 10 DEG C/min ~ 20 DEG C/min cooldown rate by quartz tube furnace from 900 DEG C ~ 1100 DEG C Temperature, obtains graphene/zinc oxide nano popped rice/ITO electrode, wherein the flow velocity of the argon gas described in step 3 be 450sccm ~ 550sccm。
Embodiment two:Present embodiment from unlike embodiment one:Step one 1)In use distilled water It is 0.04mol/L~0.06mol/L zinc nitrate solution, 0.04mol/L~0.06mol/L to distinguish compound concentration as solvent The PEI of hexa solution, 0.04mol/L~0.06mol/L ammonia spirit and 4mmol/L~6mmol/L Solution, and by four kinds of solution it is well mixed after obtained with 450r/min~500r/min rotating speed magnetic agitation 4min~5min Hydro-thermal reaction solution;It is other identical with embodiment one.
Embodiment three:Present embodiment from unlike embodiment one or two:By step one 2)It is middle to incite somebody to action Step one 1)Obtained hydro-thermal reaction solution is poured into reactor, covers reactor lid, in 95 DEG C~105 DEG C of temperature strip 11~13h is reacted under part, then takes out and naturally cools to room temperature in atmosphere, zinc oxide nano popped rice is obtained, reactor is opened and uses Distilled water is clean by material clean, and the zinc oxide nano popped rice after filtering is transferred in culture dish, is put into drying box 70 DEG C~90 DEG C at dry 1 ~ 3h obtain zinc oxide nano popped rice;It is other identical with one of embodiment one or two.
Embodiment four:Present embodiment from unlike embodiment one to three:Step 21)It is middle to incite somebody to action 0.015g ~ 0.025g zinc oxide nano popped rice and 20 mL deionized water are mixed to get zinc oxide nano popped rice suspension;It is other with One of embodiment one to three is identical.
Embodiment five:Present embodiment from unlike embodiment one to four:By step in step 3 23)In obtained zinc oxide nano popped rice/ITO electrode be placed on quartz tube furnace gas outlet side, from room temperature under argon gas protection 950 DEG C ~ 1050 DEG C are heated to 10 DEG C/min ~ 20 DEG C/min heating rate, is incubated under the conditions of 950 DEG C ~ 1050 DEG C 40min ~ 60min, methane gas is passed through when temperature is 950 DEG C ~ 1050 DEG C into tube furnace with 10 sccm ~ 20sccm speed Body, is then cooled to room temperature from 950 DEG C ~ 1050 DEG C with 10 DEG C/min ~ 20 DEG C/min cooldown rate by quartz tube furnace, obtains Graphene/zinc oxide nano popped rice/ITO electrode, the wherein flow velocity of the argon gas described in step 3 are 450sccm ~ 550sccm;It is other It is identical with one of embodiment one to four.
Present embodiment is that a kind of graphene/zinc oxide nano popped rice/ITO electrode is used as working electrode, passes through pulse Voltammetric method test obtains curve of the material to the levodopa of various concentrations, so as to play a part of detecting levodopa.
Using following verification experimental verifications effect of the present invention:
Experiment one:A kind of preparation method of graphene of this experiment/zinc oxide nano popped rice/ITO electrode is step by the following method Realize:
First, hydrothermal synthesis method:
1)The solvent zinc nitrate solution that compound concentration is 0.05mol/L respectively, 0.05mol/L hexa-methylene are used as with distilled water The polyetherimide solution of four amine aqueous solutions, 0.05mol/L ammonia spirit and 5mmol/L, and by four kinds of solution it is well mixed after Hydro-thermal reaction solution is obtained with 500r/min rotating speed magnetic agitation 5min;
2)By step one 1)Obtained hydro-thermal reaction solution is poured into reactor, covers reactor lid, in 100 DEG C of temperature strip 12h is reacted under part, then takes out and naturally cools to room temperature in atmosphere, zinc oxide nano popped rice is obtained, reactor distillation is opened Water is clean by material clean, and the zinc oxide nano popped rice after filtering is transferred in culture dish, is put into drying box at 80 DEG C Dry 2h;
2nd, automatic spraying process
1)The deionized water of 0.02 g zinc oxide nano popped rice and 20mL is mixed to get zinc oxide nano popped rice suspension;
2)ITO electro-conductive glass is cleaned by ultrasonic after 20min in acetone soln, ethanol solution and deionized water respectively, at room temperature Natural cooling is dried.Six pieces of ITO electro-conductive glass are fixed in spraying equipment heating plate, with adhesive tape by ITO electro-conductive glass Press from both sides the covering of electrode wires side, it is ensured that electrode wires are directly contacted with ITO electro-conductive glass;
3)Finely dispersed zinc oxide suspension is placed in spray gun zinc oxide nano popped rice/ITO electricity is prepared using automatic spraying process Pole, whole spraying process is carried out under 10psi air inlet pressures, and the distance of nozzle to ITO electro-conductive glass is 15cm, and heating dish temperature is 100 DEG C, zinc oxide nano popped rice suspension is stirred continuously with mini-sized blender in spraying process;
3rd, chemical vapour deposition technique
By step 23)In obtained zinc oxide nano popped rice/ITO electrode be placed on quartz tube furnace gas outlet side, protected in argon gas 1000 DEG C are heated to from room temperature with 10 DEG C/min heating rate under shield, 60min is incubated under the conditions of 1000 DEG C, is in temperature Methane gas is passed through with 20sccm speed into tube furnace at 1000 DEG C, quartz tube furnace is then cooled to room from 1000 DEG C Temperature, obtains graphene/zinc oxide nano popped rice/ITO electrode, the wherein flow velocity of the argon gas described in step 3 is 500 sccm.
Fig. 1 is to test the stereoscan photograph that a zinc oxide nano popped rice prepared amplifies 10000 times.As can be seen that oxygen Change zinc nano flower to be made up of nano wire, about 2.5 microns of the length of nano wire, about 50 nanometers of diameter.
Fig. 2 is to test the stereoscan photograph that a graphene prepared/zinc oxide nano popped rice amplifies 10000 times.Due to Graphene simply forms several layers on zinc oxide nano popped rice surface, so the pattern and size of graphene/zinc oxide nano popped rice are basic It is unchanged.
Fig. 3 is the energy spectrum diagram for testing a graphene/zinc oxide nano popped rice prepared.As can be seen that in zinc oxide surface There is the presence of carbon.
Fig. 4 is the Raman collection of illustrative plates for testing a graphene/zinc oxide nano popped rice prepared, wherein in 1364cm-1, 1576cm-1With 2651 cm-1Occur the characteristic peak of three correspondence graphenes at position, be respectively by SP3Orbital hybridization carbon atom D bands, SP caused by coplanar vibration2G bands caused by the coplanar vibration of the carbon atom of hydridization and because double resonance Raman scattering causes 2D bands, and in 340cm-1,427cm-1There are zinc oxide signature peaks in place, and it is the graphene and oxygen by multilayer to show the material Change zinc composition.
Experiment two:Graphene/zinc oxide nano popped rice/ITO detects the experiment of levodopa, concrete operations as working electrode It is as follows:
Using graphene/zinc oxide nano popped rice/ITO as working electrode, effective material area is 0.7cm2, silver/silver chlorate work For reference electrode, platinum filament is tested as to electrode using traditional three-electrode system by pulse voltammetry, current potential increase 50mV, Pulse height 4mV, sweep speed 8mV/s, so as to obtain differential pulse voltammetry curve of the material to various concentrations levodopa; Described graphene/zinc oxide nano popped rice/ITO is prepared by experiment one.
Fig. 5 is the differential pulse voltammetry curve for the levodopa for testing two obtained detection various concentrations.As can be seen that left The oxidation potential for revolving DOPA is main in 0.18V or so, with the growth oxidation peak current increase of levodopa concentration.
Fig. 6 is to test levodopa concentration and oxidation peak current when two obtained differential pulse voltammetries detect levodopa Linear Fit Chart.In the concentration range of 1 ~ 60 μM of test, levodopa concentration change is linear with oxidation peak current Straight line, sensitivity of the graphene/zinc oxide nano popped rice/ITO electrode to levodopa is 0.32 μ A μM-1

Claims (7)

1. the preparation method of a kind of graphene/zinc oxide nano popped rice/TIO electrodes, it is characterised in that specifically carry out according to the following steps 's:
First, hydrothermal synthesis method
1)The solvent zinc nitrate solution that compound concentration is 0.03mol/L~0.07mol/L respectively, 0.03mol/ are used as with distilled water L~0.07mol/L hexa solution, 0.03mol/L~0.07mol/L ammonia spirit and 3mmol/L~ 7mmol/L polyetherimide solution, and by four kinds of solution it is well mixed after with 450r/min~550r/min rotating speed magnetic force Stirring 3min~5min obtains hydro-thermal reaction solution;
2)By step one 1)Obtained hydro-thermal reaction solution is poured into reactor, covers reactor lid, at 90 DEG C~120 DEG C 10~14h is reacted under temperature conditionss, then takes out and naturally cools to room temperature in atmosphere, zinc oxide nano popped rice is obtained, opens anti- Answer kettle distilled water that material clean is clean, and the zinc oxide nano popped rice after filtering is transferred in culture dish, be put into drying box In at 70 DEG C~90 DEG C dry 1 ~ 3h obtain zinc oxide nano popped rice;
2nd, automatic spraying process
1)The deionized water of 0.01g ~ 0.03g zinc oxide nano popped rice and 20mL is mixed to get zinc oxide nano popped rice suspension;
2)ITO is cleaned by ultrasonic after 20min in acetone soln, ethanol solution and deionized water respectively, at room temperature natural cooling Dry, six pieces of ITO electro-conductive glass are fixed in spraying equipment heating plate, ITO electro-conductive glass is pressed from both sides into electrode wires with adhesive tape Side is covered, it is ensured that electrode wires are directly contacted with ITO electro-conductive glass;
3)Finely dispersed zinc oxide nano popped rice suspension is placed in spray gun, zinc-oxide nano is prepared using automatic spraying process Flower/ITO electrode, whole spraying process is carried out under 10psi air inlet pressures, and the distance of nozzle to ITO is 15cm, and heating dish temperature is 100 DEG C, zinc oxide nano popped rice suspension is stirred continuously with mini-sized blender in spraying process;
3rd, chemical vapour deposition technique
By step 23)In obtained zinc oxide nano popped rice/ITO electrode be placed on quartz tube furnace gas outlet side, protected in argon gas 900 DEG C ~ 1100 DEG C are heated to from room temperature with 10 DEG C/min ~ 20 DEG C/min heating rate under shield, in 900 DEG C ~ 1100 DEG C conditions Lower insulation 40min ~ 60min, is passed through when temperature is 900 DEG C ~ 1100 DEG C into tube furnace with 10 sccm ~ 20sccm speed Methane gas, is then cooled to room with 10 DEG C/min ~ 20 DEG C/min cooldown rate by quartz tube furnace from 900 DEG C ~ 1100 DEG C Temperature, obtains graphene/zinc oxide nano popped rice/ITO electrode, wherein the flow velocity of the argon gas described in step 3 be 450sccm ~ 550sccm。
2. a kind of preparation method of graphene according to claim 1/zinc oxide nano popped rice/ITO electrode, it is characterised in that By step one 1)It is middle with distilled water as the solvent zinc nitrate solution that compound concentration is 0.03mol/L~0.07mol/L respectively, 0.03mol/L~0.07mol/L hexa solution, 0.03mol/L~0.07mol/L ammonia spirit and 3mmol/ L~7mmol/L polyetherimide solution, and by four kinds of solution it is well mixed after with 450r/min~550r/min rotating speed Magnetic agitation 3min~5min obtains hydro-thermal reaction solution.
3. a kind of preparation method of graphene according to claim 1/zinc oxide nano popped rice/ITO electrode, it is characterised in that Step 21)It is suspended that the middle deionized water by 0.01g ~ 0.03g zinc oxide nano popped rice and 20mL is mixed to get zinc oxide nano popped rice Liquid.
4. a kind of preparation method of graphene according to claim 1/zinc oxide nano popped rice/ITO electrode, it is characterised in that Step 22)Middle ITO electro-conductive glass is cleaned by ultrasonic after 10min in acetone soln, ethanol solution and deionized water respectively, in room The lower natural cooling of temperature is dried, and six pieces of ITO are fixed in spraying equipment heating plate, ITO is pressed from both sides into electrode wires side with adhesive tape Covering, it is ensured that electrode wires are clean free of contamination with the direct contact positions of ITO.
5. a kind of preparation method of graphene according to claim 1/zinc oxide nano popped rice/ITO electrode, it is characterised in that Step 23)Middle zinc oxide nano popped rice suspension is placed in spray gun prepares zinc oxide nano popped rice/ITO electricity using automatic spraying process Pole, whole spraying process is carried out under 10psi air inlet pressures, and the distance of nozzle to ITO electro-conductive glass is 15cm, and heating dish temperature is 100 DEG C, zinc oxide nano popped rice suspension is stirred continuously with mini-sized blender in spraying process.
6. a kind of preparation method of graphene according to claim 1/zinc oxide nano popped rice/ITO electrode, it is characterised in that By step 23)In obtained zinc oxide nano popped rice/ITO electrode be placed on quartz tube furnace gas outlet side, under argon gas protection 900 DEG C ~ 1100 DEG C are heated to from room temperature with 10 DEG C/min ~ 20 DEG C/min heating rate, is protected under the conditions of 900 DEG C ~ 1100 DEG C Warm 40min ~ 60min, methane is passed through when temperature is 900 DEG C ~ 1100 DEG C into tube furnace with 10sccm ~ 20sccm speed Gas, is then cooled to room temperature from 900 DEG C ~ 1100 DEG C with 10 DEG C/min ~ 20 DEG C/min cooldown rate by quartz tube furnace, obtains To graphene/zinc oxide nano popped rice/ITO electrode, the wherein flow velocity of the argon gas described in step 3 is 450sccm ~ 550sccm.
7. a kind of application of graphene/zinc oxide nano popped rice/ITO electrode, it is characterised in that graphene/zinc oxide nano popped rice/ITO Electrode is used as working electrode in biology sensor.
CN201710540089.4A 2017-07-05 2017-07-05 The preparation and application of a kind of graphene/zinc oxide nano popped rice/ITO electrode Pending CN107315045A (en)

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CN109239154A (en) * 2018-08-23 2019-01-18 哈尔滨理工大学 A kind of preparation and application of zinc oxide nano popped rice-graphene composite material
CN109599534A (en) * 2018-11-29 2019-04-09 西交利物浦大学 Nanometer flower-shaped silicon copper electrode material based on graphene and the preparation method and application thereof
CN111024792A (en) * 2020-01-07 2020-04-17 哈尔滨理工大学 Electrochemical sensing electrode based on flower-like zinc oxide @ ferrocene functionalized three-dimensional graphene
CN114512681A (en) * 2022-01-29 2022-05-17 辽宁大学 Electrode material for biofuel cell and preparation method and application thereof
CN114544725A (en) * 2020-11-25 2022-05-27 五鼎生物技术股份有限公司 Biochemical test piece

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CN109599534B (en) * 2018-11-29 2021-04-27 西交利物浦大学 Graphene-based nano flower-shaped silicon-copper alloy electrode material and preparation method and application thereof
CN111024792A (en) * 2020-01-07 2020-04-17 哈尔滨理工大学 Electrochemical sensing electrode based on flower-like zinc oxide @ ferrocene functionalized three-dimensional graphene
CN111024792B (en) * 2020-01-07 2023-04-25 哈尔滨理工大学 Electrochemical sensing electrode based on flower-like zinc oxide@ferrocene functionalized three-dimensional graphene
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