CN108362670A - A kind of preparation method and applications of automobile formaldehyde examination fluorescence nano sensor - Google Patents
A kind of preparation method and applications of automobile formaldehyde examination fluorescence nano sensor Download PDFInfo
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- CN108362670A CN108362670A CN201810146899.6A CN201810146899A CN108362670A CN 108362670 A CN108362670 A CN 108362670A CN 201810146899 A CN201810146899 A CN 201810146899A CN 108362670 A CN108362670 A CN 108362670A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
- G01N21/643—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" non-biological material
Abstract
A kind of preparation method and applications of automobile formaldehyde examination fluorescence nano sensor, are related to a kind of preparation method and applications of nano-sensor.It is the detection method testing cost costliness that solve formaldehyde in existing automobile, the low problem of detection sensitivity.Method：One, by silicon source dissolution of raw material in deionized water, dissolving forms mixed solution, mixed solution is fitted into polytetrafluoroethylene (PTFE) pyroreaction kettle, then polytetrafluoroethylene (PTFE) pyroreaction kettle is put into baking oven and reacts to obtain solution A；Two, solution A is fitted into centrifuge tube and is centrifuged, take supernatant liquor, be solution B；Three, solution B is fitted into bag filter and is dialysed, obtain the Fluorescent silicon nanoparticle material with formaldehyde detection function.The cost of the present invention is low, and detection sensitivity is high, and detection limit can reach 1ppb.The present invention is used for automobile formaldehyde gas detection field.
Description
Technical field
The present invention relates to a kind of preparation method and applications of nano-sensor.
Background technology
Recent years, as all kinds of contamination accidents take place frequently in automobile, in-vehicle exposure problem have become after decorations pollute,
The third-largest pollution problem after indoor PM2.5 pollutions.Interior material can discharge the formaldehyde of damage health, if at for a long time
Have in " poison " environment in this, people's health will be seriously threatened.Vapour environment inside car why worse and worse, in addition to vapour
Outside vehicle perfume, ground inferior glue, foot pad, " corium " seat or even direction indicators cover, arch-criminal is volatilized also from adhesive
Substance so that the chemical pollutants such as interior formaldehyde start to increase.
Formaldehyde can be combined with protein, and the influence to health is mainly manifested in allotriosmia, abnormal pulmonary function, liver function
Can extremely, immunologic dysfunction etc..After sucking high-concentration formaldehyde, it may appear that the serious stimulation of respiratory tract and oedema, eye pierce
Bitterly, it has a headache, bronchial asthma can also occur.In automobile formaldehyde pollution problem have become influence one of human physical and mental health it is important
Problem.
Nano-sensor as a kind of novel, size between the sensing material of 0.1~100nm, in tip materials field
Play increasingly important role.Fluorescent technique has quickly as a kind of optical detection quickly grown, sensing technology,
Stablize, it is sensitive the features such as, show very important application prospect in fields such as materialogy, environmental science, biomedicines.
The nano-sensor for formaldehyde examination being developed at present is mainly based upon Electrochemical Detection, UV absorption
And the principles such as photoion technology, generally existing testing cost is high, time-consuming for detection, is lacked dependent on large-scale instrument and equipment etc.
Point seriously limits its application in real life.
The detection method of formaldehyde includes mainly using methylene oxide detecting instrument and using formaldehyde certainly in now widely used automobile
Survey two kinds of box (detection box).The content of formaldehyde point-device can be tested out using methylene oxide detecting instrument, but there are detectors
And the disadvantage that testing cost expense is very expensive.And tested oneself box (detection box) using formaldehyde, it is relatively economical material benefit and conveniently
Easy method, but its testing result is the rough detection data compared with standard color comparison card by naked eyes, therefore
There are the disadvantages such as the unstable of testing result, detection sensitivity be low, moreover, its testing result is easily by environmental factor (temperature, humidity
And wind speed etc.) influence, it is serious to limit its application in actually detected field.
Invention content
The present invention is to solve the detection method testing cost costlinesses of formaldehyde in existing automobile, and detection sensitivity is low to ask
Topic, provides a kind of preparation method and applications of fluorescence nano sensor.
The preparation method of fluorescence nano sensor of the present invention, it is characterised in that this approach includes the following steps：
One, by silicon source dissolution of raw material in deionized water, ultrasonic dissolution, forms uniform mixed solution at room temperature, will
Mixed solution is fitted into polytetrafluoroethylene (PTFE) pyroreaction kettle, then polytetrafluoroethylene (PTFE) pyroreaction kettle is put into baking oven and carries out high temperature
Carburizing reagent, reaction temperature are 100-240 DEG C, and reaction 8-12h terminates, and obtain solution A, as glimmering with formaldehyde detection function
Light nano-particle；Wherein the volume ratio of the mole and deionized water of silicon source raw material is (10-50) mmol：(10-50)mL；
Two, the solution A that step 1 obtains is fitted into centrifuge tube, by high speed centrifugation 3-5 times, removal bottom is large-sized
The impurity such as particle, take supernatant liquor, are solution B；
Three, the solution B that step 2 obtains is fitted into bag filter, dialysis treatment is carried out under aqueous conditions 3~4 days,
Removing has neither part nor lot in the impurity such as the silicon source raw material of carburizing reagent, obtains the Fluorescent silicon nanoparticle material with formaldehyde detection function.
Further, silicon source raw material described in step 1 is diatomite, silica (SiO2), trichlorosilane (SiHCl3)、3-
Aminopropyl triethoxysilane (APTES) or γ-methacryloxypropyl trimethoxy silane (KH570).
Further, ultrasonic power is 60~100W in step 1.
Further, centrifugation rate described in step 2 is 5000r/min~15000r/min.
Further, it is 8000-14000 that the specification of institute's bag filter, which is molecular cut off, in step 3.
The application of fluorescence nano sensor prepared by the above method in the detection of automobile formaldehyde gas.
The highly sensitive detection to formaldehyde in automobile can be achieved in the present invention, and detection limit can reach 1ppb.
The principle of the present invention：
Because automotive trim be unable to do without the use of adhesive in factory-assembled, it is residual to carry formaldehyde after manufacture
It stays, pollutes environment inside car.Since formaldehyde is a kind of toxic gas, formaldehyde can make driver and conductor generate headache, weak, evil
The symptoms such as the heart, ophthalmodynia and neurological disorders can cause very big security risk in the case that unconscious, cause too late to regret
Traffic accident.Moreover, the carrier that automobile is easier to generate formaldehyde pollution as one, and that there is spaces is small, opposite
It closes, be unfavorable for the problems such as toxic gas diffusion, therefore the detection of formaldehyde in automobile is particularly important, be directly related to people
Physical and mental health.In addition, in automobile under the environmental condition of relative closure, it is more advantageous to nano-sensor PARA FORMALDEHYDE PRILLS(91,95) molecule
Contact, absorption, and then it is more advantageous to highly sensitive, the intelligent measurement for realizing PARA FORMALDEHYDE PRILLS(91,95) gas.
The operation principle of formaldehyde is mainly according to prepared in Fluorescent silicon nanoparticle material tests automobile in the present invention
Silicon nano-particle materials surface microstructure is conducive to the absorption of its PARA FORMALDEHYDE PRILLS(91,95) molecule, due to formaldehyde molecule and silicon nano it
Between effect cause silicon nano occur aggregation or surface texture change, cause silicon nano occur fluorescent quenching,
It is gradually increased with the increase quenching degree of concentration of formaldehyde, to realize the fluoroscopic examination of PARA FORMALDEHYDE PRILLS(91,95).
Beneficial effects of the present invention：
The method of the present invention, using hydrothermal carbonization method, prepares fluorescence silicon quantum dot using silicon source as raw material.It therefore, can be with
Utilize concentration of formaldehyde in the fluorescence nano Sensor monitoring automobile of the present invention.
Since silicon nano has good chemical stability, it can be dispersed stably in aqueous solution, show excellent
Color fluorescence, therefore the present invention fluorescence nano sensor is with good stability and fluorescence property.Nano fluorescent is passed
Sensor, which is placed under the ultraviolet lamp of 300W, irradiates 12h, and prodigious Quenching does not occur, shows prepared nano fluorescent sensor
With good fluorescent stability.
The present invention is synthesized by one step hydro thermal method high temperature cabonization, and preparation method is simple, cost of material is low and derives from a wealth of sources, behaviour
Make simple.Since silicon source passes through the process of high temperature cabonization, silicon quantum dot is formed, quantum effect is generated and makes it have good fluorescence
Performance, therefore there is preferable fluorescence intensity, fluorescence efficiency is up to 57%~68%.With the raising of Formaldehyde in Environment concentration,
Fluorescence intensity is gradually reduced, and (0-100ppm) the linear controllable variations in wider concentration range, and detection limit can reach
1ppb.Fluorescence nano sensor indicated above has good practicability and in wide application prospect.
Silicon nano size uniformity prepared by this method, dispersibility, synthetic method is simple, raw material is cheap and easy to get,
At low cost, product obtained is nontoxic, has preferable fluorescence property, and formaldehyde gas has fluoroscopic examination work(to environmental pollutants
Energy.It has broad application prospects in the environment such as environmental monitoring and improvement, automotive interior material, technical field of material chemistry.
Description of the drawings
Fig. 1 is uv absorption spectra, luorescence excitation spectrogram and the fluorescence hair of fluorescence nano sensor prepared by embodiment 1
Penetrate spectrogram；
(grain size of nano-sensor is about for the images of transmissive electron microscope for the fluorescence nano sensor that Fig. 2 is prepared for embodiment 1
For 6-8nm)；
Fig. 3 is the XRD spectra of fluorescence nano sensor prepared by embodiment 1；
Fig. 4 is fluorescence of the fluorescence nano sensor of the preparation of embodiment 1 in the presence of various concentration formaldehyde (0-100ppm)
Spectrogram；
Fig. 5 is the selective enumeration method experimental result data figure of fluorescence nano sensor PARA FORMALDEHYDE PRILLS(91,95) prepared by embodiment 1,
In, formaldehyde and other common ions and gas such as Cl-, NO3 -,SO3 2-, ClO4 -, SO4 2-, CO3 2-,N2, CO2, air, O2And formaldehyde
Concentration is 10ppm；
Fig. 6 is placed under the ultraviolet lamp of 300W for fluorescence nano sensor prepared by embodiment 1 and irradiates 0-12h, in difference
The fluorescence spectra of period.
Specific implementation mode
Technical solution of the present invention is not limited to act specific implementation mode set forth below, further includes between each specific implementation mode
Arbitrary combination.
Specific implementation mode one：The preparation method of present embodiment automobile formaldehyde examination fluorescence nano sensor, it is special
Sign is that this approach includes the following steps：
One, by silicon source dissolution of raw material in deionized water, ultrasonic dissolution, forms uniform mixed solution at room temperature, will
Mixed solution is fitted into polytetrafluoroethylene (PTFE) pyroreaction kettle, then polytetrafluoroethylene (PTFE) pyroreaction kettle is put into baking oven and carries out high temperature
Carburizing reagent, reaction temperature are 100-240 DEG C, and reaction 8-12h terminates, and obtain solution A, as glimmering with formaldehyde detection function
Light nano-particle；Wherein the volume ratio of the mole and deionized water of silicon source raw material is (10-50) mmol：(10-50)mL；
Two, the solution A that step 1 obtains is fitted into centrifuge tube, by high speed centrifugation 3-5 times, removal bottom is large-sized
The impurity such as particle, take supernatant liquor, are solution B；
Three, the solution B that step 2 obtains is fitted into bag filter, dialysis treatment is carried out under aqueous conditions 3~4 days,
Removing has neither part nor lot in the impurity such as the silicon source raw material of carburizing reagent, obtains the Fluorescent silicon nanoparticle material with formaldehyde detection function.
Specific implementation mode two：The present embodiment is different from the first embodiment in that：Silicon source raw material described in step 1
For diatomite, silica, trichlorosilane, 3- aminopropyl triethoxysilanes or γ-methacryloxypropyl trimethoxy
Base silane.It is other same as the specific embodiment one.
Specific implementation mode three：The present embodiment is different from the first and the second embodiment in that：Ultrasonic work(in step 1
Rate is 60~100W.It is other the same as one or two specific embodiments.
Specific implementation mode four：Unlike one of present embodiment and specific implementation mode one to three：It is anti-in step 1
It is 160~200 DEG C to answer temperature.It is other identical as one of specific implementation mode one to three.
Specific implementation mode five：Unlike one of present embodiment and specific implementation mode one to four：It is anti-in step 1
10h is answered to terminate.It is other identical as one of specific implementation mode one to four.
Specific implementation mode six：Unlike one of present embodiment and specific implementation mode one to five：Silicon in step 1
The mole of source raw material and the volume ratio of deionized water are (20-40) mmol：(20-40)mL.Other and specific implementation mode one
It is identical to one of five.
Specific implementation mode seven：Unlike one of present embodiment and specific implementation mode one to six：Institute in step 2
It is 5000r/min~15000r/min to state centrifugation rate.It is other identical as one of specific implementation mode one to six.
Specific implementation mode eight：Unlike one of present embodiment and specific implementation mode one to seven：Institute in step 2
It is 10000r/min to state centrifugation rate.It is other identical as one of specific implementation mode one to seven.
Specific implementation mode nine：Unlike one of present embodiment and specific implementation mode one to eight：Institute in step 3
The specification of bag filter is that molecular cut off is 8000-14000.It is other identical as one of specific implementation mode one to eight.
Specific implementation mode ten：Unlike one of present embodiment and specific implementation mode one to nine：Institute in step 3
The specification of bag filter is that molecular cut off is 10000-12000.It is other identical as one of specific implementation mode one to nine.
Specific implementation mode 11：Application of the present embodiment fluorescence nano sensor in the detection of automobile formaldehyde gas.
Elaborate below to the embodiment of the present invention, following embodiment under based on the technical solution of the present invention into
Row is implemented, and gives detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following realities
Apply example.
Embodiment 1：
One, the diatom earth material for weighing 10mmol is dissolved in 20mL deionized waters, is dissolved under room temperature 100W ultrasounds, is formed
Uniform mixed solution is fitted into 100mL polytetrafluoroethylene (PTFE) pyroreaction kettles, is put into reaction 10h in 200 DEG C of baking oven and is terminated,
Obtain the fluorescent nano particles with formaldehyde detection function.
Two, the solution that step 1 obtains is fitted into centrifuge tube, in 10000r/min high speed centrifugations 3 times, removal bottom is big
The impurity such as the particle of size.
Three, the solution that step 2 obtains is fitted into bag filter, it is saturating for 10000 in molecular cut off under aqueous conditions
The specification for analysing bag is to carry out dialysis treatment 3 days, and removing has neither part nor lot in the impurity such as the silicon source raw material of carburizing reagent.Obtaining has formaldehyde inspection
The Fluorescent silicon nanoparticle material of brake, i.e. fluorescence nano sensor.
Uv absorption spectra, luorescence excitation spectrogram and the fluorescence emission of fluorescence nano sensor manufactured in the present embodiment
Spectrogram is as shown in Figure 1.Prepared nano fluorescent sensor in the ultraviolet region of 290nm-360nm there are big uptake zone,
Central absorbent peak is in 320nm.Fluorescence excitation peak is in 360nm, and fluorescence emission peak is in 486nm.
The transparent aqueous solution state of fluorescence nano sensor under natural lighting, the fluorescence under 365nm ultraviolet lightings
Nano-sensor shows the fluorescence of blue.
Fig. 2 is the images of transmissive electron microscope (grain size of nano-sensor of fluorescence nano sensor manufactured in the present embodiment
About 6-8nm)；As shown in Figure 2, the grain size of prepared silicon nano is about 6-8nm, and size ratio is more uniform, dispersion
Property is good.
Fig. 3 is the XRD spectra of fluorescence nano sensor, it can be seen that the grain size of prepared silicon nano is in 22.7o
There is broad peak, the mixed and disorderly silicon atom structure without crystal form is presented.
Fig. 4 is fluorescence of the fluorescence nano sensor of the preparation of embodiment 1 in the presence of various concentration formaldehyde (0-100ppm)
Spectrogram；With the increase of concentration of formaldehyde, the fluorescence intensity of nano-sensor continuously decreases, and detection limit can reach 1ppb, can be real
The intelligent measurement of existing PARA FORMALDEHYDE PRILLS(91,95).
Fig. 5 is the selective enumeration method experimental result data figure of fluorescence nano sensor PARA FORMALDEHYDE PRILLS(91,95) prepared by embodiment 1,
In, formaldehyde and other common ions and gas such as Cl-, NO3 -,SO3 2-, ClO4 -, SO4 2-, CO3 2-,N2, CO2, air, O2And formaldehyde
Concentration is 10ppm.As shown in figure 5, common ion and gas can not be such that the fluorescence intensity of fluorescence nano sensor occurs
Apparent variation, and when it has an effect with formaldehyde, fluorescence intensity generation is significantly quenched, and illustrates that its PARA FORMALDEHYDE PRILLS(91,95) has choosing
Survey property detection performance, it can be achieved that PARA FORMALDEHYDE PRILLS(91,95) selective enumeration method.
Fig. 6 is placed under the ultraviolet lamp of 300W for fluorescence nano sensor prepared by embodiment 1 and irradiates 0-12h, in difference
The fluorescence spectra of period.It is in the time range that 0-12h is downloaded in the irradiation of ultraviolet lamp as can be seen from Figure 6, sensor
Fluorescence intensity with the extension of irradiation time, prodigious Quenching does not occur, shows prepared nano fluorescent sensing
Utensil has good fluorescent stability.
Fluorescence nano sensor manufactured in the present embodiment has preferable fluorescence intensity, and fluorescence efficiency is up to 68%.
Embodiment 2：
One, the 3- aminopropyl triethoxysilanes (APTES) for weighing 20mmol are dissolved in 50mL deionized waters, in room temperature
It is dissolved under 80W ultrasounds, forms uniform mixed solution, be fitted into 100mL polytetrafluoroethylene (PTFE) pyroreaction kettles, be put into 180 DEG C
Reaction 12h terminates in baking oven, obtains the fluorescent nano particles with formaldehyde detection function.
Two, the solution that step 1 obtains is fitted into centrifuge tube, 12000r/min high speed centrifugations 3 times, removes the big ruler in bottom
The impurity such as very little particle.
Three, the solution that step 2 obtains is fitted into bag filter, it is saturating for 14000 in molecular cut off under aqueous conditions
The specification for analysing bag is to carry out dialysis treatment 3 days, and removing has neither part nor lot in the impurity such as the silicon source raw material of carburizing reagent.Obtaining has formaldehyde inspection
The Fluorescent silicon nanoparticle material of brake, i.e. fluorescence nano sensor.
The grain size of silicon nano manufactured in the present embodiment is about 6-8nm, and size ratio is more uniform, favorable dispersibility.
The present embodiment nano-sensor detection limit can reach 1ppb, it can be achieved that PARA FORMALDEHYDE PRILLS(91,95) intelligent measurement.
The present embodiment fluorescence nano sensor, which is placed under the ultraviolet lamp of 300W, irradiates 0-12h, the fluorescence intensity of sensor with
The extension of irradiation time, prodigious Quenching does not occur, it is good to show that prepared nano fluorescent sensor has
Fluorescent stability.
Fluorescence nano sensor manufactured in the present embodiment has preferable fluorescence intensity, and fluorescence efficiency is up to 67%.
Embodiment 3：
One, weigh 30mmol γ-methacryloxypropyl trimethoxy silane (KH570) be dissolved in 50mL go from
It in sub- water, is dissolved under room temperature 100W ultrasounds, forms uniform mixed solution, be packed into 100mL polytetrafluoroethylene (PTFE) pyroreaction kettles
In, it is put into reaction 12h in 200 DEG C of baking oven and terminates, obtain the fluorescent nano particles with formaldehyde detection function.
Two, the solution that step 1 obtains is fitted into centrifuge tube, 15000r/min high speed centrifugations 3 times, removes the big ruler in bottom
The impurity such as very little particle.
Three, the solution that step 2 obtains is fitted into bag filter, it is saturating for 14000 in molecular cut off under aqueous conditions
The specification for analysing bag is to carry out dialysis treatment 3 days, and removing has neither part nor lot in the impurity such as the silicon source raw material of carburizing reagent.Obtaining has formaldehyde inspection
The Fluorescent silicon nanoparticle material of brake, i.e. fluorescence nano sensor.
The grain size of silicon nano manufactured in the present embodiment is about 6-8nm, and size ratio is more uniform, favorable dispersibility.
The present embodiment nano-sensor detection limit can reach 1ppb, it can be achieved that PARA FORMALDEHYDE PRILLS(91,95) intelligent measurement.
The present embodiment fluorescence nano sensor, which is placed under the ultraviolet lamp of 300W, irradiates 0-12h, the fluorescence intensity of sensor with
The extension of irradiation time, prodigious Quenching does not occur, it is good to show that prepared nano fluorescent sensor has
Fluorescent stability.
Fluorescence nano sensor manufactured in the present embodiment has preferable fluorescence intensity, and fluorescence efficiency is up to 64%.
Claims (10)
1. a kind of preparation method of automobile formaldehyde examination fluorescence nano sensor, it is characterised in that this method includes following step
Suddenly：
One, by silicon source dissolution of raw material in deionized water, ultrasonic dissolution, forms uniform mixed solution at room temperature, will mix
Solution is fitted into polytetrafluoroethylene (PTFE) pyroreaction kettle, then polytetrafluoroethylene (PTFE) pyroreaction kettle is put into baking oven and carries out high temperature cabonization
Reaction, reaction temperature are 100-240 DEG C, and reaction 8-12h terminates, and obtain solution A, and the as fluorescence with formaldehyde detection function is received
Rice corpuscles；Wherein the volume ratio of the mole and deionized water of silicon source raw material is (10-50) mmol：(10-50)mL；
Two, the solution A that step 1 obtains is fitted into centrifuge tube, by high speed centrifugation 3-5 times, removes the large-sized particle in bottom
Equal impurity, take supernatant liquor, are solution B；
Three, the solution B that step 2 obtains is fitted into bag filter, dialysis treatment is carried out under aqueous conditions 3~4 days, removed
The impurity such as the silicon source raw material of carburizing reagent are had neither part nor lot in, the Fluorescent silicon nanoparticle material with formaldehyde detection function is obtained.
2. a kind of preparation method of automobile formaldehyde examination fluorescence nano sensor according to claim 1, feature exist
In：Silicon source raw material described in step 1 is diatomite, silica, trichlorosilane, 3- aminopropyl triethoxysilanes or γ-methyl
Acryloyloxypropyltrimethoxysilane.
3. a kind of automobile formaldehyde examination preparation method of fluorescence nano sensor according to claim 1 or 2, feature
It is：Ultrasonic power is 60~100W in step 1.
4. a kind of preparation method of automobile formaldehyde examination fluorescence nano sensor according to claim 3, feature exist
In：Reaction temperature is 160~200 DEG C in step 1.
5. a kind of preparation method of automobile formaldehyde examination fluorescence nano sensor according to claim 1,2 or 4, special
Sign is：10h is reacted in step 1 to terminate.
6. a kind of preparation method of automobile formaldehyde examination fluorescence nano sensor according to claim 5, feature exist
In：The volume ratio of the mole and deionized water of silicon source raw material is (20-40) mmol in step 1：(20-40)mL.
7. a kind of preparation method of automobile formaldehyde examination fluorescence nano sensor according to claim 6, feature exist
In：Centrifugation rate described in step 2 is 5000r/min~15000r/min.
8. a kind of preparation method of automobile formaldehyde examination fluorescence nano sensor according to claim 7, feature exist
In：It is 8000-14000 that the specification of institute's bag filter, which is molecular cut off, in step 3.
9. a kind of preparation method of automobile formaldehyde examination fluorescence nano sensor according to claim 8, feature exist
In：It is 10000-12000 that the specification of institute's bag filter, which is molecular cut off, in step 3.
10. the application of fluorescence nano sensor prepared by method as described in claim 1 in the detection of automobile formaldehyde gas.
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Cited By (1)
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| CN110426376A (en) * | 2019-03-06 | 2019-11-08 | 长春工业大学 | A kind of preparation and application of the fluorescence nano sensor of auto continuously variable transmission wear condition detection function |
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| CN110426376B (en) * | 2019-03-06 | 2022-04-08 | 长春工业大学 | Method for detecting abrasion condition of automobile continuously variable transmission |
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