CN110426340A - A kind of multifunctional photocatalysis material properties test device and test method - Google Patents
A kind of multifunctional photocatalysis material properties test device and test method Download PDFInfo
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- CN110426340A CN110426340A CN201910776720.XA CN201910776720A CN110426340A CN 110426340 A CN110426340 A CN 110426340A CN 201910776720 A CN201910776720 A CN 201910776720A CN 110426340 A CN110426340 A CN 110426340A
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- 238000012360 testing method Methods 0.000 title claims abstract description 101
- 239000000463 material Substances 0.000 title claims abstract description 61
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 48
- 238000007146 photocatalysis Methods 0.000 title claims abstract description 47
- 238000010998 test method Methods 0.000 title claims abstract description 9
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 80
- 238000004458 analytical method Methods 0.000 claims abstract description 48
- 238000009826 distribution Methods 0.000 claims abstract description 33
- 239000007789 gas Substances 0.000 claims description 149
- 238000010438 heat treatment Methods 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 25
- 238000005286 illumination Methods 0.000 claims description 21
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 239000003344 environmental pollutant Substances 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 14
- 231100000719 pollutant Toxicity 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 13
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 11
- 229910001882 dioxygen Inorganic materials 0.000 claims description 11
- 238000011056 performance test Methods 0.000 claims description 11
- 238000011269 treatment regimen Methods 0.000 claims description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052593 corundum Inorganic materials 0.000 claims description 8
- 239000002808 molecular sieve Substances 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 229920000728 polyester Polymers 0.000 claims description 8
- 239000012286 potassium permanganate Substances 0.000 claims description 8
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 8
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 8
- 230000003197 catalytic effect Effects 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims description 3
- -1 acetaldehyde, nitrogen oxides Chemical class 0.000 claims description 2
- 238000002474 experimental method Methods 0.000 claims description 2
- 230000032683 aging Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000011160 research Methods 0.000 abstract description 4
- 238000011156 evaluation Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 19
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 18
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 16
- 239000003365 glass fiber Substances 0.000 description 6
- 238000011282 treatment Methods 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 230000003679 aging effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011538 cleaning material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000007734 materials engineering Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/004—Investigating resistance of materials to the weather, to corrosion, or to light to light
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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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/10—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using catalysis
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Abstract
The present invention relates to photocatalysis test and analysis technology field more particularly to a kind of multifunctional photocatalysis material properties test device and test methods.Including air distribution system, light-catalyzed reaction system, analysis of test system and gas handling system；Air distribution system includes two or more gas circuit, and each gas circuit summation is connected with constant flow pump, and constant flow pump is connected with light-catalyzed reaction system, analysis of test system respectively by switching valve；Light-catalyzed reaction system output end is connected with analysis of test system, gas handling system respectively.Structure of the invention is flexible, production is simple, the test evaluation of photocatalysis performance and its ageing-resistant performance in complicated pollution environment such as homogenous material, polymorphic type material, engineering application material can be achieved, facilitate the comprehensive performance for quickly and accurately characterizing catalysis material, to promote the research and application of catalysis material.
Description
Technical field
The present invention relates to photocatalysis test and analysis technology field more particularly to a kind of multifunctional photocatalysis material properties tests
Device and test method.
Background technique
Catalysis material air cleaning, water process and in terms of receive significant attention, photocatalysis not only exists
Scientific research field has conducted extensive research, and there has also been significant progresses in terms of industrial applications.But with semiconductor material
There is also the problem in science of some keys for photocatalysis technology Deng based on, for example, photocatalysis efficiency is not high, material is easily poisoned mistake
The problems such as work, material loss of properties on aging, hinder its industrialized development and application.Also, in actual use, material
The photocatalysis performance of material is often unable to reach the effect of laboratory test performance, can not play to greatest extent catalysis material and exist
Photocatalytic activity in actual environment, this and contaminant gases complicated component in actual use and materials engineering application
Mode is related.Currently, the relevant test method of China's catalysis material, such as " photocatalysis air-cleaning material performance test method "
(GBT 23761-2009) provides only catalysis material to the testing standard and method of a kind of pollutant of acetaldehyde, not yet provides
Testing standard of the catalysis material under different pollutants and COMPLEX MIXED pollution environment, and to light in current test method
The test scope of catalysis material is limited only to limited sampling result, can not be reflected in comprehensive in large-scale production application process
It can performance.
Summary of the invention
Present invention solves the technical problem that being, it is mixed in different pollutants and complexity that the prior art does not provide catalysis material
The testing standard under pollution environment is closed, and the test scope of catalysis material is limited only in current test method limited
Sampling result, comprehensive performance can not be reflected in large-scale production application process and showed.
To solve the above problems, the present invention devises a kind of test device of multifunctional photocatalysis material, can carry out simultaneously
The test of material light catalysis property and ageing properties can also carry out performance of one or more the single luminescent materials in complicated pollution environment
Test simulation and testing of materials sample the amplified Performance Evaluation of range, this is beneficial to catalysis material in practical application
The characterization of comprehensive performance in the process, to accelerate the research and application of propulsion catalysis material.
In order to achieve the above objectives, the following technical solution is employed: a kind of multifunctional photocatalysis material properties test by the present invention
Device, including air distribution system, light-catalyzed reaction system, analysis of test system and gas handling system；Air distribution system includes two kinds
Or two or more gas circuits, each gas circuit summation are connected with constant flow pump, constant flow pump by switching valve respectively with light-catalyzed reaction system, point
It analyses test macro to be connected, utilizes the system pipeline for turning to the access of valve regulation constant flow pump；Light-catalyzed reaction system output end respectively with
Analysis of test system, gas handling system are connected；Gas needed for air distribution system will be tested introduces analysis of test system or photocatalysis
Reaction system, portion gas is again introduced into analysis test system via light-catalyzed reaction system output end after light-catalyzed reaction is stablized
System, residual gas enter gas handling system and carry out purified treatment.
Further, air distribution system includes formaldehyde, oxygen, acetaldehyde, nitrogen oxides, two or more in vapor
Gas circuit, throttle valve is respectively equipped in each gas circuit, and each gas circuit is connected by Gas mixing valve with constant flow pump.Gas pass through on demand throttle valve and
Gas mixing valve, which is adjusted, distributes mixed gas, then enters analysis of test system and light-catalyzed reaction system through constant flow pump and switching valve.
Further, light-catalyzed reaction system is made of one or more modular units, and every group of modular unit is by top
Lighting module, the sample mount module of two groups of front and back, lower section heating module composition；End gas drain converting interface respectively with gas
Body pipeline is connected.Modular unit group number can be flexibly increased or decreased according to the type, quantity and test purpose of sample.
Further, the lighting module wraps up ultraviolet lamp tube by glass shell or fluorescent tube forms, the sample branch
Frame module is made of side plate connection sample mount, and the heating module is made of insulating layer fixed heating plate pipe.
Further, analysis of test system includes one of gas chromatograph, Fluorescence Spectrometer, ultraviolet spectrometer or one
Kind or more analysis instrument.
Further, gas handling system is made of filter pulp, active carbon and chemical treatment regimens, the primary mistake of corresponding formation
Filter, middle rank and advanced pneumatic filter, gas are successively discharged after triple filter device, and the support construction of filter is metal
Silk screen or paper frame structure；It is connected by drainage blower with the output end of light-catalyzed reaction system.
Further, the filter pulp is one of glass fibre, polyester fiber, ceramic fibre or a variety of mixtures, institute
Stating chemical treatment regimens is alkamine compound, Pt/ZSM-5 molecular sieve, KMnO4、Cu/Al2O3One of or a variety of mixing
Object.Wherein, the primary filter of filter pulp composition, may filter that the impurity that system is introduced because of test sample；Chemical treatment regimens
The advanced filter of composition can make the test gas in air distribution system carry out chemical oxidation reaction decomposition.
A method of multifunctional photocatalysis material property being tested using above-mentioned apparatus, is included the following steps:
(1) it according to testing requirement, determines the modular unit quantity of the light-catalyzed reaction system, sample placement is fixed on
In sample mount module, assemble modular unit, and be sealed, start lighting module and heating module, adjust illumination wavelength and
Power adjusts heating power, keeps intensity of illumination and reaction system temperature constant；
(2) under high temperature illumination condition, the oxygen gas circuit and drainage blower of air distribution system is opened, sample is located in advance
Reason, it is ensured that sample light catalytic performance test result not test sample pollutant effect；
(3) after sample pretreatment, the oxygen gas circuit of drainage blower and air distribution system is closed, adjusts light-catalyzed reaction system
The intensity of illumination and temperature of system to experiment condition, the throttle valve of gas circuit needed for opening open Gas mixing valve and carry out evenly distributing mixed gas,
Constant flow pump is opened, switching valve is adjusted and introduces a gas into analysis of test system, after gas concentration test value is stablized, at the beginning of recording gas
Beginning concentration；
(4) adjust switching valve, introduce a gas into light-catalyzed reaction system, to gas from light-catalyzed reaction system output end into
After entering analysis of test system, gas concentration is recorded in real time, until recording gas concentration again after stable reaction, calculates material pair
The photocatalysis removal rate of specific pollutants.
The present invention solves photocatalysis performance test problem and material rule of the catalysis material in complicated pollution environment
The comprehensive assessment of photocatalysis performance when modelling is applied provides a kind of flexible structure, the simple multifunctional photocatalysis material of production
Performance testing device and test method are, it can be achieved that homogenous material, polymorphic type material, engineering catalysis materials such as application material
The test evaluation of catalytic performance and ageing-resistant performance.The beneficial effect is that:
(1) the present invention provides a kind of multifunctional photocatalysis material properties test devices, can flexibly be adjusted according to testing requirement
The structure and function of engagement positions realizes the test of single, a variety of or scale material photocatalysis performances and ageing properties, can also
Carry out the test assessment of material comprehensive performance in complicated pollution environment.
(2) the present invention provides a kind of multifunctional photocatalysis material performance test methods, by the pretreatment of catalysis material
Process integration avoids pollution of the sample in transfer process during performance test, can increase the standard of photocatalysis performance test
Exactness, and simplify testing process；Flexibly the variation of the intensity of illumination and temperature in control test process is, it can be achieved that material light catalysis
The synchronism detection of performance and ageing properties.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described.It is clear that the accompanying drawings in the following description is of the invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is schematic structural diagram of testing device of the invention；
Fig. 2 is the structural schematic diagram of light-catalyzed reaction system；
In figure, formaldehyde 1, acetaldehyde 3, nitrogen oxides 4, vapor 5, throttle valve 6, Gas mixing valve 7, constant flow pump 8, is turned to oxygen 2
Valve 9, light-catalyzed reaction system 10, drainage blower 11, analysis of test system 12, gas handling system 13, lighting module 14, sample
Rack module 15, heating module 16, gas drain converting interface 17.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment 1:
A kind of multifunctional photocatalysis material properties test device, including air distribution system, light-catalyzed reaction system 10, analysis survey
Test system 12 and gas handling system 13；Air distribution system includes two or more gas circuit, each gas circuit summation and 8 phase of constant flow pump
Even, constant flow pump 8 is connected with light-catalyzed reaction system 10, analysis of test system 12 respectively by switching valve 9, utilizes steering valve regulation
The system pipeline of constant flow pump access；10 output end of light-catalyzed reaction system respectively with analysis of test system 12, gas handling system
13 are connected；Gas needed for air distribution system will be tested introduces analysis of test system 12 or light-catalyzed reaction system 10, light-catalyzed reaction
Portion gas is again introduced into analysis of test system 12 via light-catalyzed reaction system output end after stabilization, and residual gas enters gas
Processing system 13 carries out purified treatment.
Air distribution system includes 2 two kinds of formaldehyde 1, oxygen gas circuits, and throttle valve 6 is respectively equipped in each gas circuit, and each gas circuit passes through mixed
Air valve 7 is connected with constant flow pump 8.Gas passes through throttle valve 6 on demand and Gas mixing valve 7 adjusts and distributes mixed gas, then through constant flow pump 8 and turns to
Valve 9 enters analysis of test system 12 or light-catalyzed reaction system 10.
As shown in Fig. 2, light-catalyzed reaction system 10 is made of 3 modular units, every group of modular unit is by one group of top
Lighting module 14, the sample mount module 15 of two groups of front and back, lower section one group of heating module 16 composition；The drainage switching of end gas
Mouth 17 is connected with gas piping respectively.Wherein, the lighting module is made of glass shell package fluorescent tube, the sample branch
Frame module is made of side plate connection sample mount, and a length of 200 ± 0.05mm, the width of sample mount size are 100 ± 0.05mm, institute
Heating module is stated to be made of insulating layer fixed heating plate pipe.
Analysis of test system 12 is gas chromatograph.
Gas handling system 13 is made of filter pulp, active carbon and chemical treatment regimens；Pass through drainage blower 11 and photocatalysis
The output end of reaction system is connected.Wherein, the filter pulp is the mixture of glass fibre, polyester fiber, the chemical treatment examination
Agent is Pt/ZSM-5 molecular sieve, KMnO4、Cu/Al2O3Mixture.Wherein, it calculates by weight, the filter pulp is 50 parts of glass
The mixture of fiber and 50 parts of polyester fibers, the chemical treatment regimens are 50 parts of Pt/ZSM-5 molecular sieves, 15 parts of KMnO4With 35
Part Cu/Al2O3Mixture.
A method of multifunctional photocatalysis material property being tested using above-mentioned apparatus, is included the following steps:
(1) it according to testing requirement, determines that the modular unit quantity of the light-catalyzed reaction system is 3,6 groups of samples is placed
It is fixed in sample mount module, assembles modular unit, and be sealed, start lighting module and heating module, adjust illumination
Wavelength is 450-650nm, power 20W, and adjusting heating power is 550W, keeps the fluorescence to be in the intensity of illumination of specimen surface
2.5mW/cm2±0.05W/cm2It is constant at 100 DEG C ± 5 DEG C with reaction system temperature；
(2) under high temperature illumination condition, the oxygen gas circuit and drainage blower of air distribution system are opened, control gas flow exists
500ml/min pre-processes sample, it is ensured that sample light catalytic performance test result not test sample pollutant effect；
(3) after sample pretreatment 1.5h, the oxygen gas circuit of drainage blower and air distribution system is closed, it is anti-to adjust photocatalysis
The intensity of illumination and temperature for answering system are to 1.5mW/cm2±0.05W/cm2, temperature is to 23 DEG C ± 0.5 DEG C, opening formaldehyde and oxygen
The throttle valve of two kinds of gas circuits of gas opens Gas mixing valve and carries out evenly distributing mixed gas, keeps concentration of formaldehyde control in 40ml/m3, open
Constant flow pump keeps gas flow in 400ml/min, adjusts switching valve and introduce a gas into analysis of test system, survey to gas concentration
After examination value is stablized, formaldehyde gas initial concentration is recorded；
(4) adjust switching valve, introduce a gas into light-catalyzed reaction system, to gas from light-catalyzed reaction system output end into
After entering analysis of test system, gas concentration is recorded in real time, until recording gas concentration again after stable reaction, calculates material pair
The photocatalysis removal rate of formaldehyde pollutants.Test result shows that sample is after light-catalyzed reaction carries out 60min and 120min, first
The removal rate of aldehyde molecule is 50.2% and 72.6%.
Embodiment 2:
A kind of multifunctional photocatalysis material properties test device, including air distribution system, light-catalyzed reaction system 10, analysis survey
Test system 12 and gas handling system 13；Air distribution system includes two or more gas circuit, each gas circuit summation and 8 phase of constant flow pump
Even, constant flow pump 8 is connected with light-catalyzed reaction system 10, analysis of test system 12 respectively by switching valve 9, utilizes steering valve regulation
The system pipeline of constant flow pump access；10 output end of light-catalyzed reaction system respectively with analysis of test system 12, gas handling system
13 are connected；Gas needed for air distribution system will be tested introduces analysis of test system 12 or light-catalyzed reaction system 10, light-catalyzed reaction
Portion gas is again introduced into analysis of test system 12 via light-catalyzed reaction system output end after stabilization, and residual gas enters gas
Processing system 13 carries out purified treatment.
Air distribution system includes 4 three kinds of oxygen 2, acetaldehyde 3, nitrogen oxides gas circuits, is respectively equipped with throttle valve 6 in each gas circuit, respectively
Gas circuit is connected by Gas mixing valve 7 with constant flow pump 8.Gas passes through throttle valve 6 on demand and Gas mixing valve 7 adjusts and distributes mixed gas, then through perseverance
Stream pump 8 and switching valve 9 enter analysis of test system 12 and light-catalyzed reaction system 10.
Light-catalyzed reaction system 10 is made of 2 modular units, and every group of modular unit is by the lighting module 14 of top, front and back
Two groups of sample mount module 15, the heating module 16 of lower section form；End gas drain converting interface 17 respectively with gas piping
It is connected.The lighting module is made of glass shell package ultraviolet lamp tube, and the sample mount module connects sample branch by side plate
Frame composition, a length of 200 ± 0.05mm, the width of sample mount size are 100 ± 0.05mm, and the heating module is fixed by insulating layer
Heating coil composition.
Analysis of test system 12 is gas chromatograph and ultraviolet spectrometer.
Gas handling system 13 is made of filter pulp, active carbon and chemical treatment regimens；Pass through drainage blower 11 and photocatalysis
The output end of reaction system is connected.The filter pulp is the mixture of glass fibre, polyester fiber, ceramic fibre, at the chemistry
Reason reagent is alkamine compound, Pt/ZSM-5 molecular sieve, KMnO4、Cu/Al2O3Mixture.Wherein, it calculates by weight,
The filter pulp is the mixture of 30 parts of glass fibres, 30 parts of polyester fibers and 40 parts of ceramic fibres, and the chemical treatment regimens are
20 parts of alkamine compounds, 40 parts of Pt/ZSM-5 molecular sieves, 25 parts of KMnO4With 15 parts of Cu/Al2O3Mixture.
A method of multifunctional photocatalysis material property being tested using above-mentioned apparatus, is included the following steps:
(1) it according to testing requirement, determines that the modular unit quantity of the light-catalyzed reaction system is 2,4 groups of samples is placed
It is fixed in sample mount module, assembles modular unit, and be sealed, start lighting module and heating module, adjust illumination
Wavelength is 365nm, power 20W, and adjusting heating power is 550W, and keeping fluorescence in the intensity of illumination of specimen surface is 2.5mW/
cm2±0.05W/cm2It is constant at 100 DEG C ± 5 DEG C with reaction system temperature；
(2) under high temperature illumination condition, the oxygen gas circuit and drainage blower of air distribution system are opened, control gas flow exists
360ml/min pre-processes sample, it is ensured that sample light catalytic performance test result not test sample pollutant effect；
(3) after sample pretreatment 1.5h, the oxygen gas circuit of drainage blower and air distribution system is closed, it is anti-to adjust photocatalysis
The intensity of illumination and temperature for answering system are to 1.5mW/cm2±0.05W/cm2, temperature is to 23 DEG C ± 0.5 DEG C, opening oxygen, acetaldehyde
With the throttle valve of three kinds of gas circuits of nitrogen oxides, opens Gas mixing valve and carry out evenly distributing mixed gas, keep the control of mixed pollutants concentration
In 40ml/m3, constant flow pump is opened, keeps gas flow in 300ml/min, adjusts switching valve and introduce a gas into analysis test system
System records gas initial concentration after gas concentration test value is stablized；
(4) adjust switching valve, introduce a gas into light-catalyzed reaction system, to gas from light-catalyzed reaction system output end into
After entering analysis of test system, gas concentration is recorded in real time, until recording gas concentration again after stable reaction, calculates material pair
The photocatalysis removal rate of complicated pollutant.Test result shows that sample is after light-catalyzed reaction carries out 60min and 120min, second
The removal rate of aldehyde molecule is 46.7% and 68.8%；The removal rate of nitrogen oxides molecule is 32.8% and 45.9%.
Embodiment 3:
A kind of multifunctional photocatalysis material properties test device, including air distribution system, light-catalyzed reaction system 10, analysis survey
Test system 12 and gas handling system 13；Air distribution system includes two or more gas circuit, each gas circuit summation and 8 phase of constant flow pump
Even, constant flow pump 8 is connected with light-catalyzed reaction system 10, analysis of test system 12 respectively by switching valve 9, utilizes steering valve regulation
The system pipeline of constant flow pump access；10 output end of light-catalyzed reaction system respectively with analysis of test system 12, gas handling system
13 are connected；Gas needed for air distribution system will be tested introduces analysis of test system 12 or light-catalyzed reaction system 10, light-catalyzed reaction
Portion gas is again introduced into analysis of test system 12 via light-catalyzed reaction system output end after stabilization, and residual gas enters gas
Processing system 13 carries out purified treatment.
Air distribution system includes three kinds of gas circuits of oxygen 2, acetaldehyde 3, vapor 5, is respectively equipped with throttle valve 6 in each gas circuit, respectively
Gas circuit is connected by Gas mixing valve 7 with constant flow pump 8.Gas passes through throttle valve 6 on demand and Gas mixing valve 7 adjusts and distributes mixed gas, then through perseverance
Stream pump 8 and switching valve 9 enter analysis of test system 12 and light-catalyzed reaction system 10.
Light-catalyzed reaction system 10 is made of 4 modular units, and every group of modular unit is by the lighting module 14 of top, front and back
Two groups of sample mount module 15, the heating module 16 of lower section form；End gas drain converting interface 17 respectively with gas piping
It is connected.
The lighting module is made of glass shell package ultraviolet lamp tube, and the sample mount module connects sample by side plate
Bracket composition, a length of 200 ± 0.05mm, the width of sample mount size are 100 ± 0.05mm, and the heating module is consolidated by insulating layer
Determine heating coil composition.
Analysis of test system 12 is gas chromatograph.
Gas handling system 13 is made of filter pulp, active carbon and chemical treatment regimens；Pass through drainage blower 11 and photocatalysis
The output end of reaction system is connected.The filter pulp is the mixture of glass fibre, polyester fiber, ceramic fibre, at the chemistry
Reason reagent is alkamine compound, Pt/ZSM-5 molecular sieve, KMnO4、Cu/Al2O3Mixture.Wherein, it calculates by weight,
The filter pulp is the mixture of 50 parts of glass fibres, 10 parts of polyester fibers and 40 parts of ceramic fibres, and the chemical treatment regimens are
50 parts of Pt/ZSM-5 molecular sieves, 20 parts of KMnO4With 30 parts of Cu/Al2O3Mixture.
A method of multifunctional photocatalysis material property being tested using above-mentioned apparatus, is included the following steps:
(1) it according to testing requirement, determines that the modular unit quantity of the light-catalyzed reaction system is 4,8 groups of samples is placed
It is fixed in sample mount module, assembles modular unit, and be sealed, start lighting module and heating module, adjust illumination
Wavelength is 365nm, power 20W, and adjusting heating power is 550W, and keeping fluorescence in the intensity of illumination of specimen surface is 2.5mW/
cm2±0.05W/cm2It is constant at 100 DEG C ± 5 DEG C with reaction system temperature；
(2) under high temperature illumination condition, the oxygen gas circuit and drainage blower of air distribution system are opened, control gas flow exists
650ml/min pre-processes sample, it is ensured that sample light catalytic performance test result not test sample pollutant effect；
(3) after sample pretreatment 1.5h, aging process is carried out to sample.The vapor gas circuit of air distribution system is opened,
Switching valve is adjusted, light-catalyzed reaction system is introduced a gas into, adjusts the temperature of light-catalyzed reaction system to 60 DEG C ± 0.5 DEG C, it is wet
Degree records gas concentration to 80%RH ± 2%RH in real time；
(4) after sample aging process 48h, the oxygen gas circuit of drainage blower and air distribution system is opened, purging specimen surface is inhaled
Attached vapor, it is ensured that sample light catalytic performance test is not influenced by vapor；
(5) intensity of illumination and temperature for adjusting light-catalyzed reaction system are to 1.5mW/cm2±0.05W/cm2, temperature to 23
DEG C ± 0.5 DEG C, the throttle valve of two kinds of gas circuits of oxygen and acetaldehyde is opened, Gas mixing valve is opened and carries out evenly distributing mixed gas, keep acetaldehyde
Concentration is controlled in 50ml/m3, constant flow pump is opened, keeps gas flow in 550ml/min, adjusts switching valve and introduce a gas into analysis
Test macro records gas concentration after gas concentration test value is stablized in real time, until stable reaction, it is dense to record gas again
Degree calculates material to the photocatalysis removal rate of acetaldehyde pollutant.Test result shows that sample carries out 60min in light-catalyzed reaction
After 120min, the removal rate of acetaldehyde molecule is 33.5% and 41.6%.
Claims (8)
1. a kind of multifunctional photocatalysis material properties test device, it is characterised in that: including air distribution system, light-catalyzed reaction system
System, analysis of test system and gas handling system；Air distribution system includes two or more gas circuit, each gas circuit summation and constant current
Pump is connected, and constant flow pump is connected with light-catalyzed reaction system, analysis of test system respectively by switching valve；Light-catalyzed reaction system is defeated
Outlet is connected with analysis of test system, gas handling system respectively.
2. multifunctional photocatalysis material properties test device as described in claim 1, it is characterised in that: air distribution system includes first
Aldehyde, oxygen, acetaldehyde, nitrogen oxides, two or more gas circuit in vapor are respectively equipped with throttle valve in each gas circuit, respectively
Gas circuit is connected by Gas mixing valve with constant flow pump.
3. multifunctional photocatalysis material properties test device as described in claim 1, it is characterised in that: light-catalyzed reaction system
Be made of one or more modular units, every group of modular unit by the lighting module of top, two groups of front and back sample mount module,
The heating module of lower section forms；Gas drainage converting interface in end is connected with gas piping respectively.
4. multifunctional photocatalysis material properties test device as claimed in claim 3, it is characterised in that: the lighting module by
Glass shell wraps up ultraviolet lamp tube or fluorescent tube composition, the sample mount module are made of side plate connection sample mount, institute
Heating module is stated to be made of insulating layer fixed heating plate pipe.
5. multifunctional photocatalysis material properties test device as described in claim 1, it is characterised in that: analysis of test system packet
Include one of gas chromatograph, Fluorescence Spectrometer, ultraviolet spectrometer or more than one analysis instruments.
6. multifunctional photocatalysis material properties test device as described in claim 1, it is characterised in that: gas handling system by
Filter pulp, active carbon and chemical treatment regimens composition；It is connected by drainage blower with the output end of light-catalyzed reaction system.
7. multifunctional photocatalysis material properties test device as claimed in claim 6, it is characterised in that: the filter pulp is glass
One of fiber, polyester fiber, ceramic fibre or a variety of mixtures, the chemical treatment regimens are alkamine compound, Pt/
ZSM-5 molecular sieve, KMnO4、Cu/Al2O3One of or a variety of mixtures.
8. a kind of test method of the multifunctional photocatalysis material properties test device using claim 1, it is characterised in that packet
Include following steps:
(1) it according to testing requirement, determines the modular unit quantity of the light-catalyzed reaction system, sample placement is fixed on sample
On rack module, modular unit is assembled, and be sealed, starts lighting module and heating module, adjusts illumination wavelength and power,
Heating power is adjusted, keeps intensity of illumination and reaction system temperature constant；
(2) under high temperature illumination condition, the oxygen gas circuit and drainage blower of air distribution system is opened, sample is pre-processed, really
Protect sample light catalytic performance test result not test sample pollutant effect；
(3) after sample pretreatment, the oxygen gas circuit of drainage blower and air distribution system is closed, light-catalyzed reaction system is adjusted
To experiment condition, the throttle valve of gas circuit needed for opening opens Gas mixing valve and carries out evenly distributing mixed gas, opens for intensity of illumination and temperature
Constant flow pump adjusts switching valve and introduces a gas into analysis of test system, and after gas concentration test value is stablized, record gas is initially dense
Degree；
(4) switching valve is adjusted, light-catalyzed reaction system is introduced a gas into, enters to gas from light-catalyzed reaction system output end and divides
After analysing test macro, gas concentration is recorded in real time, until recording gas concentration again after stable reaction, calculates material to specific
The photocatalysis removal rate of pollutant.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115999A (en) * | 2013-01-17 | 2013-05-22 | 长沙理工大学 | Gas and solid phase light-catalyzed reaction effect detection device and method capable of controlling influence factor change |
| CN109669012A (en) * | 2019-01-28 | 2019-04-23 | 中国建筑材料科学研究总院有限公司 | Indoor decorating and refurnishing materials purifying property test device and its test method |
| CN110045057A (en) * | 2019-05-24 | 2019-07-23 | 北京北大明德科技发展有限公司 | Catalyst performance evaluation device and method |
| CN210953745U (en) * | 2019-08-22 | 2020-07-07 | 国合通用(青岛)测试评价有限公司 | Multifunctional photocatalytic material performance testing device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115999A (en) * | 2013-01-17 | 2013-05-22 | 长沙理工大学 | Gas and solid phase light-catalyzed reaction effect detection device and method capable of controlling influence factor change |
| CN109669012A (en) * | 2019-01-28 | 2019-04-23 | 中国建筑材料科学研究总院有限公司 | Indoor decorating and refurnishing materials purifying property test device and its test method |
| CN110045057A (en) * | 2019-05-24 | 2019-07-23 | 北京北大明德科技发展有限公司 | Catalyst performance evaluation device and method |
| CN210953745U (en) * | 2019-08-22 | 2020-07-07 | 国合通用(青岛)测试评价有限公司 | Multifunctional photocatalytic material performance testing device |
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