CN107597168A - A kind of catalysis material of visible light-responded load dispersant carbonitride and preparation method and application - Google Patents
A kind of catalysis material of visible light-responded load dispersant carbonitride and preparation method and application Download PDFInfo
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Abstract
The invention discloses a kind of catalysis material of visible light-responded load dispersant carbonitride and preparation method and application.The present invention is using porous substrates such as foam nickel sheet, glass fibres as load matrix, nitridation toner body and dispersant are dissolved in organic solution and form dispersion soln, by soaking osmosis by dispersion soln uniform load in foam nickel sheet, due to dispersant (sodium metaphosphate, sodium metasilicate, graphene etc.) have good dispersive property enable the catalysis material prepared it is close, firmly, be uniformly dispersed in foam nickel sheet, the porous network structure of formation substantially increases the photocatalytic activity of nitrogen carbide under visible light.The preparation method does not use any binding agent, holey, high-specific surface area nickel foam sheet matrix on loaded there is visible light-responded highlight catalytic active carbonitride, whole set process flow operations are simple, short preparation period, manufacturing cost is low, dry linting degree substantially reduces, the generation without any poisonous and harmful substance.
Description
Technical field
The present invention relates to environmental protection technical field, more particularly to a kind of visible light-responded load dispersant-carbonitride
Catalysis material and preparation method and application.
Technical background
The air pollution quoted again and again in recent years, water pollution, PM2.5, the Interior Space of haze weather, particularly getting worse
Gas pollutes, such as formaldehyde, CO poisoning, N0xA series of true examples such as poisoning allow people to have experienced conscientiously with fossil energy
The Disadvantages of Developing of modern society based on source, people are also have stimulated to the depollution of environment and the demand of clean energy technology.Light is urged
Change the basis that material is photocatalysis technology, be the premise for realizing light-catalyzed reaction, therefore, new, efficient, green photochemical catalyst
Research, exploitation have become the research emphasis direction of the current industry of photocatalysis both at home and abroad.
For many years, some institution of higher learning and scientific research institutions are directed to the research and development of novel photocatalysis material always both at home and abroad, close
Patent and high-caliber paper in terms of photocatalysis also rise year by year in recent years, photocatalysis technology indoors purification of air,
Self-cleaning net material, Superhydrophilic material etc. have obtained initial success, and the market that catalysis material is applied in terms of environment is just
Gradually forming.But catalysis material that at present can be practical can only utilize ultraviolet light, and in order to efficiently utilize sunshine, exploitation can
See that photoresponse type novel photocatalysis material is imperative.Because ultraviolet only accounts for 4% of solar energy or so, and visible ray is then
Account for the 43% of solar energy.So the research of the catalysis material of efficient visible light type causes extensive concern with application.
Simultaneously as traditional visible light-responded catalysis material is powder, cause that photocatalysis efficiency is low, is difficult to reclaim, makes
Into secondary pollution problems, it is prepared as integrated photo-catalytic material and solves loading good, dusting problems raising photocatalysis effect
Rate already turns into the study hotspot and emphasis of current photocatalysis field.
The content of the invention
The shortcomings that it is an object of the invention to overcome prior art and deficiency, there is provided a kind of visible light-responded load is scattered
Catalysis material of agent-carbonitride and preparation method thereof.
It is an object of the invention to provide a kind of visible light-responded load dispersant-nitrogen obtained by above-mentioned preparation method
Change the catalysis material of carbon.
It is an object of the invention to provide a kind of catalysis material of described visible light-responded load dispersant-carbonitride
Application.
The purpose of the present invention is achieved through the following technical solutions：A kind of light of visible light-responded load dispersant-carbonitride
Catalysis material and preparation method and application, comprise the steps of：
(1) preparation of toner body is nitrogenized：Weigh presoma and the calcining of Muffle furnace high temperature is placed in ceramic crucible；
(2) pretreatment of the porous substrate such as foam nickel sheet：It is molten that the immersion of the porous substrates such as foam nickel sheet is filled into low concentration acid
To being totally submerged in liquid, by immersion, pure water rinsing, deionized water rinsing, drying, then it is used as load matrix standby；
(3) prepared by the dispersion soln of catalysis material：Nitridation toner body and dispersant are dissolved in organic solution, first ultrasound point
Dissipate, catalysis material dispersion soln is can obtain after being then thoroughly mixed again；
(4) catalysis material that osmosis prepares load dispersant-carbonitride is soaked：The load that will be obtained in step (2)
Matrix foam nickel sheet is dipped in the catalysis material dispersion soln of step (3) preparation, upset immersion 4~5 times, and soak time 2~
After 3min, take out be loaded with dispersant-carbonitride catalysis material foam nickel sheet, constant temperature drying, obtain load dispersant-
The catalysis material of carbonitride.
Supporting substrates described in step (2) are one kind of the porous substrates such as nickel foam, glass fibre, foamed aluminium；
The size of foam nickel sheet described in step (2) is 0.01m2-1m2；
Low concentration acid described in step (2), is hydrochloric acid, sulfuric acid, and one kind in acetic acid etc., its concentration is no more than 2mol/
L；
Foam nickel sheet described in step (2) is handled by following specific steps：By foam nickel sheet in low concentration acid
20~30min of middle immersion, with pure water rinsing 2~3 times after taking out, finally with deionized water rinsing 2~3 times.
Muffle furnace calcining heat described in step (1) is 500~600 DEG C；
Photocatalysis powder carbonitride described in step (3) presses 1g with described ethanol solution:50ml is matched；
The time being sufficiently stirred described in step (3) is 10~60min；
Ultrasonic frequency described in step (3) is 100~1000KHz；
The time of ultrasonic disperse described in step (3) is 10~90min.
A kind of visible light-responded load catalysis material, is prepared by the above method；Wherein, the photocatalysis material obtained
The load capacity of material is the 5%~15% of mass percent；
Application of the catalysis material of described visible light-responded load dispersant-carbonitride in environmental protection, especially
Apply to industrial waste gas degraded, the elimination of indoor toxic and harmful gas.
A kind of method of efficient, green photocatalytic degradation nitrogen oxides, comprises the following steps：
(1) catalysis material for inventing described visible light-responded load dispersant-carbonitride is placed in light-catalyzed reaction
In device；
(2) air containing NO is well mixed in photo catalysis reactor to NO concentration and stablized in 630~640ppb,
In the presence of air-flow constantly circulation, NO absorption is on the catalysis material of visible light-responded load dispersant-carbonitride；Then to
Photo catalysis reactor opens visible lamp irradiation, adsorbs the NO on catalysis material surface and is urged in catalysis material surface progress light
Change reaction, with being constantly passed through for air, the continuous progress of light-catalyzed reaction, NO concentration is significantly degraded, and is converted into
NO2Concentration be in reduced levels；
The photo catalysis reactor is nitrogen oxides test chamber；
Described NO gases, its concentration range are 550~650ppb；
The relative humidity of described air is：40%；
The irradiation dominant wavelength of described visible lamp is 360~750nm.
The method of described efficient, green photocatalytic degradation nitrogen oxides, it can be used for room air and industrial waste gas
Purification, has wide market prospects and application value.
The more existing photocatalysis technology of the present invention has following advantage and effect：
(1) present invention utilization soaks osmosis and is having the dispersion soln uniform load of catalysis material and dispersant
Have in porous, bigger serface foam nickel sheet, it is possible to achieve make catalysis material and dispersant fast and efficiently, uniformly
Be supported in foam nickel sheet, prepared integrated photo-catalytic material have it is difficult for drop-off, be easy to recovery with recycling etc. spy
Point.Compared with existing electrodeposition process and colloidal sol electrophoresis, first, the immersion osmosis in this programme is more simple and convenient；The
Two, immersion osmosis avoids electrodeposition process lotus colloidal sol electrophoresis caused electroplating effluent in process of production, more green ring
Protect；3rd, immersion osmosis farthest reduces the loss of experiment material and the waste of the energy, cost more it is cheap just
Preferably；4th, immersion osmosis compared to other method to operating personnel safety it is more guaranteed, effectively prevent commercial power and
Chemical substance damages to the safety of operating personnel；5th, immersion osmosis greatly ensures compared to conventional art
Light-catalysed avtive spot, played an important role to improving photocatalysis efficiency enhancing degradation property.
It is (2) provided by the invention that efficiently, in the method for green degraded nitrogen oxides visible ray stabilization, proportion are larger,
Catalysis material carbonitride can be contacted fully with nitrogen oxides, significantly improve photocatalysis efficiency and degradation property, meanwhile,
NO2Growing amount control in a relatively low level.
Brief description of the drawings
Fig. 1 is the degradation efficiency of NO in NO detection devices when dispersant is sodium metaphosphate；
Fig. 2 is NO in NO detection devices when dispersant is sodium metaphosphate2Formation efficiency；
Fig. 3 is the degradation efficiency of NO in NO detection devices when dispersant is sodium metasilicate；
Fig. 4 is NO in NO detection devices when dispersant is sodium metasilicate2Formation efficiency；
Fig. 5 is the degradation efficiency of NO in NO detection devices when dispersant is graphene-polyvinylpyrrolidone；
Fig. 6 is NO in NO detection devices when dispersant is graphene-polyvinylpyrrolidone2Formation efficiency；
Fig. 7 is the degradation efficiency of NO in NO detection devices when dispersant is ethyl cellulose；
Fig. 8 is NO in the NO detection devices that dispersant is ethyl cellulose2Formation efficiency.
Embodiment
Further details of elaboration is done to the present invention with reference to specific implementation example, but embodiments of the present invention are unlimited
In this.
Embodiment 1
Nitrogenize the preparation of toner body：Weigh presoma urea and 500~600 DEG C of high temperature in Muffle furnace is placed in ceramic crucible
Calcining；
The acidification of foam nickel sheet：The insertion of foam nickel sheet is filled in the beaker of 1mol/L sulfuric acid to being totally submerged, passed through
Cross immersion 30min, pure water rinsing 3 times, deionized water rinsing 3 times, in 60 DEG C of oven for drying, treat its natural cooling and then as negative
Carry matrix material；
It is prepared by the dispersion soln of catalysis material：Nitridation toner body and dispersant sodium metaphosphate are dissolved in ethanol solution ratio
For 0.8g:0.016g:40ml, ultrasonic 30min dispersing and dissolvings, photocatalysis is can obtain after being then thoroughly mixed 10min again
Material dispersion soln；
Soak the catalysis material that osmosis prepares load dispersant-carbonitride：The load matrix that will be obtained in step (2)
Foam nickel sheet is dipped in the catalysis material dispersion soln of step (3) preparation, upset immersion 4~5 times, after soaking 2~3min, is taken
Go out the foam nickel sheet for the catalysis material for being loaded with dispersant-carbonitride, be placed on 110~120 DEG C of drying on constant temperature electric furnace, obtain
Load the catalysis material of dispersant-carbonitride.The load capacity that carbonitride is drawn after being weighed by assay balance is 11.30%.
Catalysis material characterizes：
Fig. 1, Fig. 2 give the test result to prepared catalysis material performance, show prepared incorporated light
Catalysis material reaches good effect to the palliating degradation degree of nitrogen oxides, the NO concentration after processing be only 20%~25% simultaneously,
It is converted into NO2The level of gas is 10%~20% in a relatively low concentration range, prepared integrated photo-catalytic material
The effective powder that solves drops problem, recycles, reduces the secondary pollution to environment.According to other implementation example preparations
Catalysis material similarly there is the similar situation of above-mentioned collection of illustrative plates.
Embodiment 2
Nitrogenize the preparation of toner body：Weigh presoma urea and 500~600 DEG C of high temperature in Muffle furnace is placed in ceramic crucible
Calcining；
The acidification of foam nickel sheet：The insertion of foam nickel sheet is filled in the beaker of 1mol/L sulfuric acid to being totally submerged, passed through
Cross 20~30min of immersion, pure water rinsing 3 times, deionized water rinsing 3 times, in 60 DEG C of oven for drying, treat its natural cooling and then make
To load matrix material；
It is prepared by the dispersion soln of catalysis material：Nitridation toner body and dispersant sodium metasilicate are dissolved in into ethanol solution ratio is
0.8g:0.016g:40ml, ultrasonic 30min dispersing and dissolvings, then it is thoroughly mixed again after 10min and can obtain photocatalysis material
Expect dispersion soln；
Soak the catalysis material that osmosis prepares load dispersant-carbonitride：The load matrix that will be obtained in step (2)
Foam nickel sheet is dipped in the catalysis material dispersion soln of step (3) preparation, and with clean tweezers by foam nickel sheet upset 4~
5 times, after soaking 2~3min, take out and be loaded with the foam nickel sheet of photochemical catalyst, be placed on 110 on ceramic closed constant temperature electric furnace~
120 DEG C of drying, obtain loading the catalysis material of dispersant-carbonitride.
Detected by the method for embodiment 1, the load capacity of carbonitride is 9.86%；Carbonitride is successfully supported in foam nickel sheet
Prepared product is required material.
Embodiment 3
Nitrogenize the preparation of toner body：Weigh presoma urea and 500~600 DEG C of high temperature in Muffle furnace is placed in ceramic crucible
Calcining；
The acidification of foam nickel sheet：The insertion of foam nickel sheet is filled in the beaker of 1mol/L sulfuric acid to being totally submerged, passed through
Cross 20~30min of immersion, pure water rinsing 3 times, deionized water rinsing 3 times, in 60 DEG C of oven for drying, treat its natural cooling and then make
To load matrix material；
It is prepared by the dispersion soln of catalysis material：Toner body will be nitrogenized and dispersant graphene-polyvinylpyrrolidone is molten
In ethanol solution ratio be 0.4g:0.016g:40ml, first 100KHz ultrasounds 30min dispersing and dissolvings, is then thoroughly mixed again
Catalysis material dispersion soln is can obtain after 10min；
Soak the catalysis material that osmosis prepares load dispersant-carbonitride：The load matrix that will be obtained in step (2)
Foam nickel sheet is dipped in the photochemical catalyst dispersion soln of step (3) preparation, and foam nickel sheet is overturn into 4~5 with the tweezers of cleaning
It is secondary, after soaking 2~3min, the foam nickel sheet for the catalysis material for being loaded with dispersant-carbonitride is taken out, is placed on closed ceramic
110~120 DEG C of drying on constant temperature electric furnace, obtain loading the catalysis material of dispersant-carbonitride.
Detected by the method for embodiment 1, the load capacity of carbonitride is 5.97%；Carbonitride is successfully supported in foam nickel sheet
It is required material to prepare product.
Embodiment 4
Nitrogenize the preparation of toner body：Weigh presoma urea and 500~600 DEG C of high temperature in Muffle furnace is placed in ceramic crucible
Calcining；
The acidification of glass fibre：Glass fibre insertion is filled in the beaker of 1mol/L sulfuric acid to being totally submerged, passed through
Cross 20~30min of immersion, pure water rinsing 3 times, deionized water rinsing 3 times, in 60 DEG C of oven for drying, treat its natural cooling and then make
To load matrix material；
It is prepared by the dispersion soln of catalysis material：Nitridation toner body is dissolved in ethanol solution ratio with dispersant ethyl cellulose
Example is 0.4g:0.016g:40ml, first 100KHz ultrasounds 30min dispersing and dissolvings, after being then thoroughly mixed 10min again
Obtain catalysis material dispersion soln；
Soak the catalysis material that osmosis prepares load dispersant-carbonitride：The load matrix that will be obtained in step (2)
Glass fibre is dipped in the photochemical catalyst dispersion soln of step (3) preparation, and glass fibre is overturn into 4~5 with the tweezers of cleaning
It is secondary, after soaking 2~3min, the glass fibre for the catalysis material for being loaded with dispersant-carbonitride is taken out, is placed on closed ceramic
110~120 DEG C of drying on constant temperature electric furnace, obtain loading the catalysis material of dispersant-carbonitride.
Detected by the method for embodiment 1, the load capacity of carbonitride is 10.15%；Carbonitride is successfully supported on glass fibre
On to prepare product be required material.
Application implementation example 1
The method of efficient visible light photocatalytic degradation nitrogen oxides comprises the following steps：
(1) catalysis material for being loaded with dispersant-carbonitride for preparing implementation example 1, is placed in import high accuracy NO
The solid gas-phase photocatalytic reactor of detector；
(2) gas concentration of degrading is stablized in 600ppb, and in the presence of air-flow constantly circulates, NO is adsorbed visible light-responded
Load on catalysis material (load capacity of carbonitride is 11.30%)；
(3) open the visible lamp that wavelength is 360~750nm then to photo catalysis reactor to irradiate, adsorb in photocatalysis
The NO of material surface carries out light-catalyzed reaction, the continuous progress of light-catalyzed reaction on catalysis material surface, and NO concentration is shown
Degraded is write, and is converted into NO2Concentration be in reduced levels；
Fig. 1, Fig. 2 give Photocatalytic Degradation Property of the NO gases under excited by visible light under the catalysis material of preparation
Curve.From degradation curve, the NO gas photocatalytic degradation times are only 5min, illustrate that NO gases have good under this methodology
Degradation efficiency its efficiency reach more than 80%；The NO after 30min can be seen that by Fig. 4 curves2Concentration has tended to one and put down
Slow concentration is simultaneously maintained at a relatively low concentration range as 12% or so, and this shows that prepared catalysis material arrives for NO
NO2Conversion have obvious inhibitory action, NO is largely converted into ion so as to reduce the pollution again of nitrogen oxides, carried
High photocatalytic activity, promotes the lifting of Photocatalytic Degradation Property.
Visible light-responded load catalysis material provided by the present invention has good degradation effect to NO, and can incite somebody to action
The nitrogen oxides overwhelming majority is converted into ionic species.
Application implementation example 2
The method of efficient visible light photocatalytic degradation nitrogen oxides comprises the following steps：
(1) catalysis material for being loaded with dispersant-carbonitride for preparing implementation example 2, is placed in import high accuracy NO
The solid gas-phase photocatalytic reactor of detector；
(2) air (air humidity 40%, oxygen concentration 50%) containing NO is mixed in photo catalysis reactor
Uniformly stablize to NO concentration in 630~640ppb, in the presence of air-flow constantly circulates, NO is adsorbed in visible light-responded load light
On catalysis material (load capacity of carbonitride is 10.80%)；
(3) open the visible lamp that wavelength is 400~750nm then to photo catalysis reactor to irradiate, adsorb in photocatalysis
The NO of material surface carries out light-catalyzed reaction on catalysis material surface, and with being constantly passed through for air, light-catalyzed reaction is not
Disconnected to carry out, NO concentration is degraded, and is converted into NO2Concentration be in low-level；
It is 5min that Fig. 3, Fig. 4, which reflect the NO gas photocatalytic degradation times, illustrates the degraded effect of NO gases under this methodology
Rate its NO degradation efficiency that decrease maintains 78%；The NO after 30min2Concentration has tended to a gentle concentration and holding
It is 30% in a higher concentration range, this shows prepared catalysis material for NO to NO2Conversion suppression make
With decrease, photocatalytic activity reduces, the decrease of Photocatalytic Degradation Property.
Application implementation example 3
The method of efficient visible light photocatalytic degradation nitrogen oxides comprises the following steps：
(1) catalysis material for being loaded with dispersant-carbonitride for preparing implementation example 3, is placed in import high accuracy NO
Detector) solid gas-phase photocatalytic reactor；
(2) air (air humidity 40%, oxygen concentration 50%) containing NO is mixed in photo catalysis reactor
Uniformly stablize to NO concentration in 630~640ppb, in the presence of air-flow constantly circulates, NO is adsorbed in visible light-responded load light
On catalysis material (load capacity of carbonitride is 9.60%)；
(3) open the visible lamp that wavelength is 400~750nm then to photo catalysis reactor to irradiate, adsorb in photocatalysis
The NO of material surface carries out light-catalyzed reaction on catalysis material surface, and with being constantly passed through for air, light-catalyzed reaction is not
Disconnected to carry out, NO concentration is degraded, and is converted into NO2Concentration be in low-level；
It is 5min that Fig. 5, Fig. 6, which reflect the NO gas photocatalytic degradation times, under this methodology the degradation efficiency drop of NO gases
The higher degradation efficiency of low degree is only 20%；The NO after 5min2Concentration has tended to a gentle concentration and has been maintained at one
Relatively low concentration range is 7%, and this shows that prepared catalysis material weakens for NO degradation, photocatalytic activity drop
It is low, the decrease of Photocatalytic Degradation Property.
Application implementation example 4
The method of efficient visible light photocatalytic degradation nitrogen oxides comprises the following steps：
(1) catalysis material for being loaded with dispersant-carbonitride for preparing implementation example 4, is placed in import high accuracy NO
The solid gas-phase photocatalytic reactor of detector；
(2) air (air humidity 40%, oxygen concentration 50%) containing NO is mixed in photo catalysis reactor
Uniformly stablize to NO concentration in 630~640ppb, in the presence of air-flow constantly circulates, NO is adsorbed in visible light-responded load light
On catalysis material (load capacity of carbonitride is 10.34%)；
(3) open the visible lamp that wavelength is 400~750nm then to photo catalysis reactor to irradiate, adsorb in photocatalysis
The NO of material surface carries out light-catalyzed reaction on catalysis material surface, and with being constantly passed through for air, light-catalyzed reaction is not
Disconnected to carry out, NO concentration is significantly degraded, and is converted into NO2Concentration be in reduced levels；
It is 15min that Fig. 7, Fig. 8, which reflect the NO gas photocatalytic degradation times, illustrates the degraded effect of NO gases under this methodology
Rate decreases；NO degradation efficiencies are 60%, the NO after 2min2Concentration has tended to a gentle concentration and has been maintained at one
Relatively low concentration range 2%, this shows prepared catalysis material for NO to NO2Conversion have obvious inhibitory action,
NO2Concentration be only 2%~3%, photocatalytic activity improve, the enhancing of Photocatalytic Degradation Property.
Claims (10)
1. a kind of catalysis material of visible light-responded load dispersant-carbonitride and preparation method and application, its feature exists
In including following steps：
(1) preparation of toner body is nitrogenized：Weigh presoma and the calcining of Muffle furnace high temperature is placed in ceramic crucible；
(2) pretreatment of the porous substrate such as foam nickel sheet：The porous substrates such as foam nickel sheet are immersed and filled in low concentration acid solution
To being totally submerged, by immersion, pure water rinsing, deionized water rinsing, drying, then it is used as load matrix standby；
(3) prepared by the dispersion soln of catalysis material：Nitridation toner body is dissolved in organic solution with dispersant, first ultrasonic disperse is molten
Solution, can obtain catalysis material dispersion soln after being then thoroughly mixed again；
(4) immersion osmosis prepares loaded photocatalyst：The load matrix foam nickel sheet obtained in step (2) is dipped in step
(3) in the catalysis material dispersion soln prepared, upset is soaked 4~5 times, and after 2~3min of soak time, taking-up is loaded with light and urged
Change the foam nickel sheet of material, constant temperature drying, obtain the catalysis material of visible light-responded load dispersant-carbonitride.
2. the preparation method of the catalysis material of visible light-responded load dispersant-carbonitride according to claim 1, its
It is characterised by：Step
(2) supporting substrates described in are one kind of the porous substrates such as nickel foam, glass fibre, foamed aluminium.
3. the preparation method of the catalysis material of visible light-responded load dispersant-carbonitride according to claim 1, its
It is characterised by：The size of foam nickel sheet described in step (2) is 0.01m2~1m2。
4. the preparation method of the catalysis material of visible light-responded load dispersant-carbonitride according to claim 1, its
It is characterised by：Foam nickel sheet described in step (2) is handled by following specific steps：By foam nickel sheet in low concentration acid
10~60min of middle immersion, with pure water rinsing 2~3 times, with deionized water rinsing 2~3 times.
5. the preparation method of the catalysis material of visible light-responded load dispersant-carbonitride according to claim 1, its
It is characterised by：
Muffle furnace calcining heat described in step (1) is 500~600 DEG C；
Low concentration acid described in step (2), is hydrochloric acid, sulfuric acid, and one kind in acetic acid etc., its concentration is no more than 2mol/L；
Photocatalysis powder carbonitride described in step (3) presses 1g with described organic solution:50ml is matched；
The time being sufficiently stirred described in step (3) is 10~60min；
Ultrasonic frequency described in step (3) is 100~1000KHz；
The time of ultrasonic disperse described in step (3) is 10~90min.
6. a kind of catalysis material carbonitride of visible light-responded load dispersant-carbonitride, any by Claims 1 to 5
Preparation method described in obtains.
7. the catalysis material of visible light-responded load dispersant-carbonitride described in claim 6 is in environmental protection, particularly
The application of current indoor air purification field, it is characterised in that：The light of described load catalysis material dispersant-carbonitride
Catalysis material is used under radiation of visible light indoor toxic and harmful gas of degrading.
8. a kind of method of the catalysis material carbonitride degraded nitrogen oxides of visible light-responded load dispersant-carbonitride, its
It is characterised by comprising the following steps：
(1) the catalysis material carbonitride of visible light-responded load dispersant-carbonitride described in claim 6 is placed in nitrogen oxygen
In the photo catalysis reactor of compound detection means；
(2) air containing NO is well mixed in photo catalysis reactor, opening visible ray then to photo catalysis reactor shines
Penetrate.
9. the method for efficient, green photocatalytic degradation nitrogen oxides according to claim 8, it is characterised in that：The light
Catalytic reactor monitors the change of NO clearances in real time voluntarily to build gas circuit system and high-precision NO detectors；
Described NO gases, its concentration range are 550~650ppb；
The irradiation dominant wavelength of described visible lamp is 360~750nm.
10. method and the application of efficient, the green photocatalytic degradation nitrogen oxides described in claim 9, it is characterised in that：It is described
High efficiency photocatalysis degraded nitrogen oxides method can be used for controlling for atmosphere pollution particularly indoor air purification and industrial waste gas
Reason.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110624585A (en) * | 2019-09-17 | 2019-12-31 | 江苏大学 | Preparation method of carbon nitride-loaded photocatalytic network |
| CN113413901A (en) * | 2021-06-22 | 2021-09-21 | 大连海事大学 | Preparation method of recyclable visible-light-driven photocatalyst and application of recyclable visible-light-driven photocatalyst in excess sludge |
| CN115121274A (en) * | 2022-05-20 | 2022-09-30 | 湖南大学 | Palladium-modified carbon nitrogen compound-loaded foam metal visible-light-induced photocatalyst and preparation method and application thereof |
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