CN110146523A - A kind of Gaseous Pollutants and particulate matter reaction in-situ device and detection method - Google Patents
A kind of Gaseous Pollutants and particulate matter reaction in-situ device and detection method Download PDFInfo
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- CN110146523A CN110146523A CN201910524540.2A CN201910524540A CN110146523A CN 110146523 A CN110146523 A CN 110146523A CN 201910524540 A CN201910524540 A CN 201910524540A CN 110146523 A CN110146523 A CN 110146523A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/223—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/225—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion
- G01N23/2251—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material using electron or ion using incident electron beams, e.g. scanning electron microscopy [SEM]
Abstract
The present invention relates to the reaction in-situ devices and detection method of a kind of Gaseous Pollutants and particulate matter, belong to atmospheric multi-phasic reaction detection technical field, solves the reaction in-situ device and detection method for lacking gaseous pollutant and particulate matter based on actual environment in the prior art.Reaction in-situ device of the invention includes sequentially connected sample injection unit, reaction member and sampling unit, and sample injection unit is for Gaseous Pollutants and particulate matter sample introduction；Reaction member includes identical first reaction chamber of structure, the second reaction chamber and third reaction chamber；The first objective table is equipped in first reaction chamber, the first objective table is equipped with the first hole slot, and the first hole slot is for fixing the first particulate matter carrier sheet；Sampling unit is used for detection gas flow velocity and integrated flow.The present invention can gaseous pollutant based on actual environment and particulate matter carry out reaction simulation and product detection.
Description
Technical field
The present invention relates to atmospheric multi-phasic reaction detection technical field more particularly to a kind of Gaseous Pollutants and particulate matter
Reaction in-situ device and detection method.
Background technique
Gaseous pollutant in atmosphere, including NOx, SO2、O3, inorganic acid (sulfuric acid, nitric acid etc.), organic acid (formic acid, acetic acid
Deng) etc. ingredients.These gaseous pollutants occur heterogeneous reaction in surface particles and form complicated secondary inorganic aerosol and two
Secondary Organic aerosol.
Since the ingredient in Real Atmosphere is extremely complex, including inorganic gas, volatile organic compounds and primary emission
The particulate matters such as black wood charcoal, mineral, flyash.Existing research is based primarily upon field observation and laboratory simulation, and shortage is based on
The gas pollutant of actual environment and the reaction in-situ device of particulate matter.
Summary of the invention
In view of above-mentioned analysis, the embodiment of the present invention is intended to provide the in situ anti-of a kind of Gaseous Pollutants and particulate matter
Device and detection method are answered, to solve to lack in the prior art the original position of gaseous pollutant and particulate matter based on actual environment
Reaction unit.
The invention discloses the reaction in-situ device of a kind of Gaseous Pollutants and particulate matter, including it is sequentially connected into
Sample unit, reaction member and sampling unit, sample injection unit are used for the sample introduction of Gaseous Pollutants and particulate matter；Reaction member packet
Include identical first reaction chamber of structure, the second reaction chamber and third reaction chamber；It is equipped with the first objective table in first reaction chamber, first
Objective table is equipped with the first hole slot, and the first hole slot is for fixing the first particulate matter carrier sheet；Sampling unit is used for detection gas stream
Speed and integrated flow.
In a kind of possible design, the first reaction chamber is dark reaction room；Second reaction chamber is that light source irradiates reaction chamber；The
Three reaction chambers are blank control reaction chamber；The inlet and outlet of first reaction chamber to third reaction chamber is correspondingly provided with for adjusting
The first valve, the second valve and the third valve of gaseous contamination logistics capacity；Light source includes xenon lamp, ultraviolet lamp tube, halogen lamp, deuterium lamp
Or LED light.
In a kind of possible design, reaction member further includes the 4th reaction chamber, and the 4th reaction chamber is that heavily contaminated air is anti-
Answer room；The inlet and outlet of 4th reaction chamber is equipped with the 4th valve for adjusting air mass flow.
In a kind of possible design, the first particulate matter carrier sheet is used to carry the particulate matter of mineral and metal oxide；
Mineral and metal oxide, which are used to react with gaseous pollutant, generates new particulate matter.
In a kind of possible design, the first particulate matter carrier sheet includes copper mesh, silicon wafer or 111 glass.
In a kind of possible design, sampling unit includes sampling pump and gas flow rate controller；Sampling pump is used for will be big
Gas gaseous pollutant and particulate matter are pumped into reaction member；Gas flow rate controller is used to detect instantaneous by the gas of sampling pump
Flow velocity and integrated flow.
In a kind of possible design, sample injection unit includes gas piping and particulate matter removal device, particulate matter removal dress
It sets including filter membrane, the material of filter membrane is one of polytetrafluoroethylene (PTFE), quartz and glass.
In a kind of possible design, gas flow rate controller is mass flowmenter, suspended body flowmeter or metering hole.
The invention also discloses the in-situ detection methods of a kind of Gaseous Pollutants and particulate matter, using above-mentioned atmosphere
The reaction in-situ device of gaseous pollutant and particulate matter, the in-situ detection method include:
Gas is pumped into reaction member by step S1. using sampling unit, and gas removes in air after sample injection unit
Become gaseous pollutant after grain object；
Gaseous pollutant is introduced in dark reaction room and light source irradiation reaction chamber and is reacted with the particulate matter in it by step S2.
New particulate matter is generated, particulate matter identical with dark reaction room and light source irradiation reaction chamber is equipped in blank control reaction chamber；
Step S3. irradiates particulate matter newly-generated in reaction chamber and dark reaction room to light source and transmission electron microscopy is respectively adopted
Mirror TEM and EDX energy disperse spectroscopy is characterized and is analyzed.
Further, in step s 2, heavily contaminated air reaction room while by Gaseous Pollutants is introduced, heavily contaminated is empty
The indoor particulate matter of solid/liquid/gas reactions is identical as dark reaction room and the indoor particulate matter of blank control reaction.
Compared with prior art, the present invention can at least realize one of following beneficial effect:
(1) reaction in-situ device of the invention is equipped with light source irradiation reaction chamber, dark reaction room, blank control reaction chamber and again
Pollute air reaction room, wherein blank control reaction chamber can be realized the distinctness that lower gas-solid reaction is irradiated with dark reaction and light source
Comparison.By set different determination conditions reaction chamber can atmospheric gas pollutant based on actual environment and particulate matter carry out
Reaction in-situ realizes the particulate solid example reaction of gaseous pollutant and selection in atmosphere, and passes through transmission electron microscope or scanning
The pattern of sample and elemental analysis after Electronic Speculum pattern, EDS test reaction.
(2) sampling unit being connect by setting with reaction member, can not only accurately detect through flow control valve
Gaseous Pollutants can also be pumped into corresponding reaction chamber by instantaneous velocity and integrated flow, sampling pump with constant flow velocity,
Guarantee that reaction in-situ is gone on smoothly.
It in the present invention, can also be combined with each other between above-mentioned each technical solution, to realize more preferred assembled schemes.This
Other feature and advantage of invention will illustrate in the following description, also, certain advantages can become from specification it is aobvious and
It is clear to, or understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification embodiment and attached
It is achieved and obtained in specifically noted content in figure.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not to be construed as limiting the invention, in entire attached drawing
In, identical reference symbol indicates identical component.
Fig. 1 is the reaction in-situ schematic device of Gaseous Pollutants and particulate matter that embodiment 1 provides；
Fig. 2 is the structural schematic diagram for the first reaction chamber that embodiment 1 provides；
Fig. 3 is the transmission electron microscope for the new particulate matter generated under LED light irradiation that the embodiment of the present invention 3 provides
Test chart；
Fig. 4 is the transmission electron microscope that indoor aerosol sample is reacted in the blank control that the embodiment of the present invention 3 provides
Test chart.
Appended drawing reference:
1- sampling pump；2- gas flow rate controller；The 4th objective table 3 of 3-；The 4th particulate matter carrier sheet 4 of 4-；5- particulate matter
Removal device；6- gas piping；7- dark reaction room；8- light source reaction chamber；9- blank control reaction chamber；10- heavily contaminated air is anti-
Answer room；11- third valve；12- optical filter；The first objective table of 13-；The first reaction chamber of 14-.
Specific embodiment
Specifically describing the preferred embodiment of the present invention with reference to the accompanying drawing, wherein attached drawing constitutes the application a part, and
Together with embodiments of the present invention for illustrating the principle of the present invention, it is not intended to limit the scope of the present invention.
Embodiment 1
Present embodiment discloses the reaction in-situ devices of a kind of Gaseous Pollutants and particulate matter, such as Fig. 1 and Fig. 2 institute
Show, including sequentially connected sample injection unit, reaction member and sampling unit, sample injection unit is used for Gaseous Pollutants and particle
Object sample introduction；Reaction member includes identical first reaction chamber 14 of structure, the second reaction chamber and third reaction chamber；First reaction chamber 14
It is inside equipped with the first objective table 13, the first objective table 13 is equipped with the first hole slot, and the first hole slot is for fixing the first particulate matter loading
Piece；Sampling unit is used for detection gas flow velocity and integrated flow.
Illustratively, reaction unit of the invention includes sequentially connected sample injection unit, reaction member and sampling unit,
In, Gaseous Pollutants and particulate matter initially enter sample injection unit, and sample injection unit is only surplus after filtering the particulate matter in atmosphere
Lower gas pollutant, the part gaseous pollutant enter in the reaction member connecting with sample injection unit；Reaction member includes structure
Identical first reaction chamber 14, the second reaction chamber and third reaction chamber, are equipped with the first objective table 13 in the first reaction chamber 14, and first
Objective table 13 is equipped with the first hole slot, is equipped with the first particulate matter carrier sheet in the first hole slot, the first hole slot for fix this first
Particulate matter carrier sheet, in addition, the first reaction chamber is equipped with the first optical filter, the first optical filter is used for while the first reaction of sealing
Room；It is corresponding, the second objective table is equipped in the second reaction chamber, the second objective table is equipped with the second hole slot, is equipped in the second hole slot
Second particulate matter carrier sheet, the second hole slot are equally used for fixing the second particulate matter carrier sheet；Third is equipped in third reaction chamber to carry
Object platform, third objective table are equipped with third hole slot, are equipped with third particulate matter carrier sheet in third hole slot, third hole slot is equally used for
Fixed third particulate matter carrier sheet；First reaction chamber and the second reaction chamber are respectively enterd by the gaseous pollutant that sample injection unit enters
It is interior, and with corresponding on the first reaction chamber and the second indoor first particulate matter carrier sheet of reaction and the second particulate matter carrier sheet
Grain reacts, and generates new particulate matter；Remaining gas is discharged by using unit after reaction, and sampling unit is for detecting gas
Body flow velocity and integrated flow.
Compared with prior art, the present invention can gas pollutant based on actual environment and particulate matter carry out it is in situ anti-
It should simulate and product detection, be advantageous in that eliminate have particulate matter in atmosphere, so that polluted gas and being selected only in atmosphere
Particulate samples effect.Determine which kind of pollution forming process accounts for mainly by product after detection reaction, wherein aerosol sample can be with
Using single component, such as quartz, calcium carbonate, kaolin, after reacting with Gaseous Pollutants, surface particles are measured
The variation of the properties such as variation, the pattern of ingredient；Practical particulate matter, such as flyash, the flue dust of direct emission can also be used；Or
The aerosol sample directly acquired in person's environment.For the core that the present invention studies in the surface particles characterized, research is practical
Under gaseous pollutant and humidity illumination condition, the reaction process on particulate matter.
It should be noted that the first optical filter 12 of the second reaction chamber can be using the different materials such as quartz, glass, metal
Matter, the first optical filter act not only as sealing, while can the different wave length of light be ended and be passed through, as quartz can
Realize that all wavelengths are passing through for 200nm or more ultraviolet light, the cutoff wavelength of glass is 350nm or so, and only allowing wavelength is 350nm
Above light passes through.
In order to study the Gaseous Pollutants and particulate matter under specified conditions, the first reaction chamber 14 of reaction member is dark
Reaction chamber 7；Second reaction chamber is that light source irradiates reaction chamber 8；Third reaction chamber can be blank control reaction chamber 9 (according to reaction
Actual needs can be adjusted)；The inlet and outlet of first reaction chamber 14 to third reaction chamber is correspondingly provided with for adjusting
First valve 11 of air mass flow is to third valve 11.
Specifically, when needing to study the anti-of gaseous pollutant and particulate matter under dark condition and under the conditions of particular light
At once, the first reaction chamber 14 is covered in using tinfoil paper, the first reaction chamber 14 is dark reaction room 7 at this time；Second reaction chamber is set
Under the conditions of particular light, the second reaction chamber is that light source irradiates reaction chamber 8 at this time；It is sky when third reaction chamber is not passed through gas
White control group；It should be noted that reacting indoor gaseous pollutant to accurately control into the first reaction chamber 14 to third
Flow, the inlet and outlet of the first reaction chamber 14 to third reaction chamber is correspondingly provided with for adjusting gaseous contamination logistics capacity
First valve 11, the second valve and third valve 11；In addition, light source includes xenon lamp, ultraviolet lamp tube, halogen equipped with specific optical filter
The light sources such as plain lamp, deuterium lamp, LED light.
In order to study the Gaseous Pollutants and particulate matter under the conditions of heavily contaminated, reaction member further includes reacting with first
Identical 4th reaction chamber of 14 structure of room, the 4th reaction chamber are heavily contaminated air reaction room 10；The import of 4th reaction chamber and go out
The 4th valve 11 for adjusting air mass flow is equipped at mouthful.
Specifically, when encountering heavily contaminated weather, gaseous pollutant and particle content in atmosphere can be significantly hotter than flat
When, the particulate matter in the heavily contaminated air is filtered out using sample injection unit, obtains gaseous pollutant, which is introduced into
In heavily contaminated air reaction room 10, wherein be equipped with the 4th objective table 3 in the 4th reaction chamber, the 4th objective table 3 is equipped with the 4th hole
Slot, the 4th hole slot is interior to be equipped with the 4th particulate matter carrier sheet, and the 4th hole slot is for fixing third particulate matter carrier sheet；Gaseous pollutant
Reacted with the particulate matter in the 4th particulate matter carrier sheet 4, generate new particulate matter, after reaction remaining gas by using
Unit discharge, sampling unit are used for detection gas flow velocity and integrated flow.
It is emphasized that for dark reaction room 7, atmosphere gaseous reactant enters dark reaction room 7 with and in it
Grain object generation effect, the effect can change particulate matter pattern, new particulate matter be formed, by using transmission electron microscope
(TEM) new particulate matter is analyzed with EDX energy disperse spectroscopy.
For light source reaction chamber, light reaction can make the reaction of surface particles more complicated, and light reaction includes excitation state
And a series of processes such as free radical, but it can be absorbed closer to the particulate matter of iron content under actual environment, such as illumination condition and titanium
Light occurs light-catalyzed reaction and has more gaseous pollutants so that surface particles activity is got higher and be oxidized.
For blank control reaction chamber 9, it is again provided with aerosol sample in blank group, but close air intake valve 11, does not deposit
In lasting inlet air conditions；Aerosol sample in blank control reaction chamber 9 can be in light source reaction chamber and dark reaction room 7
Grain sample is contrasted.
For better load bearing grain object, the first particulate matter carrier sheet is used to carry the particle of mineral and metal oxide
Object；Mineral and metal oxide are to generate new particulate matter for reacting with gaseous pollutant；Wherein, the first particulate matter carrier sheet
For copper mesh, silicon wafer or glass；Mineral and metal oxide include kaolin, calcite, quartz, alumino-silicate, true soil, powder
Coal ash and prone soil sample etc..
In order to which the Gaseous Pollutants of acquisition removal particulate matter are delivered to reaction member, sampling unit includes sampling pump
1 and gas flow rate controller 2；Sampling pump 1 is used to for Gaseous Pollutants and particulate matter being pumped into reaction member；Gas flow rate
Controller 2 is used to detect the gas instantaneous velocity and integrated flow by sampling pump 1.
In order to remove the particulate matter in atmosphere, sample injection unit includes gas piping 6 and particulate matter removal device 5, particulate matter
Removal device 5 includes filter membrane, and the material of filter membrane is one of polytetrafluoroethylene (PTFE), quartz and glass.Specifically, atmospheric gas is logical
Gas piping 6 is crossed into particulate matter removal device 5 and particulate matter therein is removed, Gaseous Pollutants are formed, by adopting
The Gaseous Pollutants are introduced corresponding reaction chamber by sample unit, and corresponding with each corresponding indoor particulate matter generation of reaction
Reaction, generates new particulate matter.
Sampling pump 1 of the invention is using one of diaphragm pump, piston pump or sliding vane rotary pump, and sampling pump 1 is by the big of suction
After gas gaseous pollutant introduces corresponding reaction chamber and reacts, entered in outside air by the outlet of sampling pump 1.
In order to which gas is pumped into reaction member with constant flow velocity, is adjusted and flowed using unit using gas flow speed controller 2
Amount, so that gas is pumped into each reaction chamber with the rate set, wherein gas flow rate controller 2 is mass flowmenter, float
One of flowmeter or metering hole.
Embodiment 2
Present embodiment discloses the in-situ detection methods of a kind of Gaseous Pollutants and particulate matter, are mentioned using embodiment 1
The Gaseous Pollutants of confession and the reaction in-situ device of particulate matter, the in-situ detection method include:
Atmosphere is pumped into reaction member by step S1. using sampling unit, and gas passes through in sample injection unit removal air
Become Gaseous Pollutants after grain object；
It is anti-that step S2. Gaseous Pollutants respectively enter dark reaction room 7, light source irradiation reaction chamber 8 and heavily contaminated air
It answers in room 10, and reacts with the particulate matter in it, generate new particulate matter；Wherein, dark reaction room 7, light source irradiation reaction
Room 8, blank control reaction chamber 9 are identical with the indoor particulate matter of heavily contaminated air reaction,
Transmission electron microscope (TEM) and EDX power spectrum is respectively adopted in variable grain object step S3. newly-generated to step S2
Instrument is analyzed.
It should be noted that transmission electron microscope (TEM), it can be seen that can not be seen clearly under an optical microscope is less than
The fine structure of 0.2um；EDX energy disperse spectroscopy is the important attached necessary instrument of electron microscope (scanning electron microscope, transmission electron microscope), knot
Electron microscope is closed, qualitative, quantitative point can be carried out to the Elemental redistribution of the microcosmos area of test material within 1~3 minute
Analysis.
Compared with the detection method of existing Gaseous Pollutants, Gaseous Pollutants and particulate matter provided by the invention
Reaction in-situ device can be directly connected to the characterization methods such as In-situ Infrared, Raman, ultraviolet, fluorescence and optical microscopy, in turn
The reaction process of real-time detection surface particles；And existing detection method is to take after the reaction was completed to take out sample, by electricity
Mirror and XPS etc. carry out off-line analysis, can not real-time monitoring sample response situation.
Embodiment 3
The present embodiment is reaction in-situ device and the implementation of the Gaseous Pollutants and particulate matter that are provided using embodiment 1
The in-situ detection method of Gaseous Pollutants and particulate matter that example 2 provides, carries out Gaseous Pollutants and particulate matter
The indoor aerosol sample of each reaction of reaction simulation and product detection, the reaction member of the present embodiment is flyash, to new life
At particulate matter testing result as shown in figure 3, blank control result is as shown in Figure 4, the specific steps are as follows:
Step S1. is removed the particulate matter in atmospheric sample using gas piping 6 and particulate matter removal device 5, is then led to
The Gaseous Pollutants of generation are introduced light source and irradiate reaction chamber 8 by over-sampling pump 1, and light source irradiates reaction chamber and blank control is anti-
It answers the particle in room 9 identical, but closes the air intake valve 11 of blank control reaction chamber 9, the setting of blank control reaction chamber 9 is not held
Continuous inlet air conditions；Gaseous Pollutants react with aerosol sample-flyash in light source irradiation reaction chamber 8, generate
New particulate matter；
Step S3. carries out the new particulate matter that step S2 is generated using transmission electron microscope (TEM) and EDX energy disperse spectroscopy
Analysis.
It should be noted that the light source irradiation reaction chamber 8 in the present embodiment is irradiated using sunlight, solar irradiation will be compared
Aerosol sample in the new particulate matter and blank control reaction chamber 9 of the generation penetrated is characterized and is analyzed；For example, using
EDS test is characterized and is tested to it, is analyzed result and each element mass fraction ratio, is obtained following result:
It is tested by the new particulate matter irradiated in reaction chamber to sunlight, detects S element mass percentage
For 3.52% (Fig. 3), the S element mass percentage of the aerosol sample in blank control reaction chamber 9 is 0.53% (Fig. 4),
This illustrate sulfurous gas pollutant and flyash effect generate sulfate, that is, demonstrate in Gaseous Pollutants there are S member
Plain enrichment phenomenon.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
Claims (10)
1. the reaction in-situ device of a kind of Gaseous Pollutants and particulate matter, which is characterized in that including sequentially connected sample introduction
Unit, reaction member and sampling unit, the sample injection unit are used for the sample introduction of Gaseous Pollutants and particulate matter；
The reaction member includes identical first reaction chamber of structure, the second reaction chamber and third reaction chamber；First reaction
Interior is equipped with the first objective table, and first objective table is equipped with the first hole slot, and first hole slot is for fixing the first particle
Object carrier sheet；
The sampling unit is used for detection gas flow velocity and integrated flow.
2. the reaction in-situ device of Gaseous Pollutants according to claim 1 and particulate matter, which is characterized in that described
First reaction chamber is dark reaction room；Second reaction chamber is that light source irradiates reaction chamber；The third reaction chamber is blank control
Reaction chamber；
The inlet and outlet of first reaction chamber, the second reaction chamber and third reaction chamber is correspondingly provided with for adjusting gaseous state dirt
Contaminate the first valve, the second valve and the third valve of logistics capacity；
The light source includes xenon lamp, ultraviolet lamp tube, halogen lamp, deuterium lamp, LED light.
3. the reaction in-situ device of Gaseous Pollutants according to claim 2 and particulate matter, which is characterized in that described
Reaction member further includes the 4th reaction chamber, and the 4th reaction chamber is heavily contaminated air reaction room；4th reaction chamber into
Mouth and exit are equipped with the 4th valve for adjusting air mass flow.
4. the reaction in-situ device of Gaseous Pollutants according to claim 3 and particulate matter, which is characterized in that described
First particulate matter carrier sheet is used to carry the particulate matter of mineral and metal oxide；The particulate matter of the mineral and metal oxide
For being reacted with gaseous pollutant and generating new particulate matter.
5. the reaction in-situ device of Gaseous Pollutants according to claim 4 and particulate matter, which is characterized in that described
First particulate matter carrier sheet is copper mesh, silicon wafer or glass.
6. the reaction in-situ device of Gaseous Pollutants according to claim 5 and particulate matter, which is characterized in that described
Sampling unit includes sampling pump and gas flow rate controller；The sampling pump is used to for Gaseous Pollutants and particulate matter being pumped into
In reaction member；
The gas flow rate controller is used to detect the gas instantaneous velocity and integrated flow by sampling pump.
7. the reaction in-situ device of Gaseous Pollutants and particulate matter according to claim 1 or 6, which is characterized in that
The sample injection unit includes gas piping and particulate matter removal device, and the particulate matter removal device includes filter membrane, the filter membrane
Material be one of polytetrafluoroethylene (PTFE), quartz and glass.
8. the reaction in-situ device of Gaseous Pollutants according to claim 7 and particulate matter, which is characterized in that described
Gas flow rate controller is one of mass flowmenter, suspended body flowmeter or metering hole.
9. the in-situ detection method of a kind of Gaseous Pollutants and particulate matter, which is characterized in that use claim 1 to 8 institute
The reaction in-situ device of the Gaseous Pollutants and particulate matter stated, the in-situ detection method include:
Gas is pumped into reaction member by step S1. using sampling unit, and gas removes particulate in air after sample injection unit
Become gaseous pollutant afterwards；
Gaseous pollutant is introduced in dark reaction room and light source irradiation reaction chamber and reacts generation with the particulate matter in it by step S2.
New particulate matter, blank control reaction chamber is interior to be equipped with particulate matter identical with dark reaction room and light source irradiation reaction chamber；
Step S3. irradiates particulate matter newly-generated in reaction chamber and dark reaction room to light source and transmission electron microscope is respectively adopted
TEM and EDX energy disperse spectroscopy is characterized and is analyzed.
10. the in-situ detection method of Gaseous Pollutants according to claim 9 and particulate matter, which is characterized in that
In step S2, meanwhile, Gaseous Pollutants are introduced into heavily contaminated air reaction room, the indoor particulate matter of heavily contaminated air reaction
It is identical that indoor particulate matter is reacted with dark reaction room and blank control.
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| CN112697824A (en) * | 2020-12-11 | 2021-04-23 | 南京大学 | Multi-channel in-situ reaction cabin chip for in-situ transmission electron microscope and use method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2469329Y (en) * | 2000-11-06 | 2002-01-02 | 李清洋 | Umbrella shaped apparatus used for treatment of smoke pollution |
| CN101017125A (en) * | 2007-02-14 | 2007-08-15 | 中国科学院安徽光学精密机械研究所 | Method for monitoring atmospheric particles online by differential vibrating microbalance method and monitoring instrument |
| US20080241505A1 (en) * | 2007-03-29 | 2008-10-02 | Japan Vilene Company, Ltd. | Functional particle carried sheet and manufacturing method thereof |
| CN106290163A (en) * | 2016-07-21 | 2017-01-04 | 中国科学院化学研究所 | Dinitrogen pentoxide and concentration of nitric acid on-line monitoring system and monitoring method in a kind of air |
| CN107064420A (en) * | 2017-02-14 | 2017-08-18 | 中国科学院化学研究所 | The on-line monitoring system and monitoring method of medium volatile organic matter in a kind of air |
| CN108778463A (en) * | 2016-03-07 | 2018-11-09 | Omya国际股份公司 | Graininess alkaline including earth metal carbonate material and/or graininess alkaline including earth metal phosphate material for NOX intakes |
| CN109506992A (en) * | 2018-11-24 | 2019-03-22 | 天津大学 | A kind of sampling apparatus and the method for sampling of short-term a large amount of acquisition atmosphere gaseous mercuries |
| CN109813671A (en) * | 2019-03-18 | 2019-05-28 | 新疆维吾尔自治区环境保护科学研究院 | Gas/grain reaction detection system |
-
2019
- 2019-06-17 CN CN201910524540.2A patent/CN110146523B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2469329Y (en) * | 2000-11-06 | 2002-01-02 | 李清洋 | Umbrella shaped apparatus used for treatment of smoke pollution |
| CN101017125A (en) * | 2007-02-14 | 2007-08-15 | 中国科学院安徽光学精密机械研究所 | Method for monitoring atmospheric particles online by differential vibrating microbalance method and monitoring instrument |
| US20080241505A1 (en) * | 2007-03-29 | 2008-10-02 | Japan Vilene Company, Ltd. | Functional particle carried sheet and manufacturing method thereof |
| CN108778463A (en) * | 2016-03-07 | 2018-11-09 | Omya国际股份公司 | Graininess alkaline including earth metal carbonate material and/or graininess alkaline including earth metal phosphate material for NOX intakes |
| CN106290163A (en) * | 2016-07-21 | 2017-01-04 | 中国科学院化学研究所 | Dinitrogen pentoxide and concentration of nitric acid on-line monitoring system and monitoring method in a kind of air |
| CN107064420A (en) * | 2017-02-14 | 2017-08-18 | 中国科学院化学研究所 | The on-line monitoring system and monitoring method of medium volatile organic matter in a kind of air |
| CN109506992A (en) * | 2018-11-24 | 2019-03-22 | 天津大学 | A kind of sampling apparatus and the method for sampling of short-term a large amount of acquisition atmosphere gaseous mercuries |
| CN109813671A (en) * | 2019-03-18 | 2019-05-28 | 新疆维吾尔自治区环境保护科学研究院 | Gas/grain reaction detection system |
Non-Patent Citations (6)
| Title |
|---|
| JING SHANG 等: "Synergistic effect of nitrate-doped TiO2 aerosols on the fast photochemical oxidation of formaldehyde", 《SCIENTIFIC REPORTS》 * |
| 吴玲燕: "大气污染物在矿尘气溶胶表面的非均相反应", 《豆丁》 * |
| 徐冰烨 等: "甲醛在TiO2颗粒物表面的非均相反应", 《中国科学：化学》 * |
| 徐冰烨 等: "甲醛在α-Al2O3颗粒物表面的非均相反应研究", 《高等学校化学学报》 * |
| 王亚丽: "SO2-NO2-C3H6在矿质氧化物表面非均相反应的二次无机颗粒生成研究", 《万方》 * |
| 王玲 等: "光照对SO2在矿质氧化物表面非均相反应的影响", 《环境科学学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112697824A (en) * | 2020-12-11 | 2021-04-23 | 南京大学 | Multi-channel in-situ reaction cabin chip for in-situ transmission electron microscope and use method thereof |
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