CN107876044A - Nano composite material catalyst and its production and use - Google Patents
Nano composite material catalyst and its production and use Download PDFInfo
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- CN107876044A CN107876044A CN201711021330.9A CN201711021330A CN107876044A CN 107876044 A CN107876044 A CN 107876044A CN 201711021330 A CN201711021330 A CN 201711021330A CN 107876044 A CN107876044 A CN 107876044A
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
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- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
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- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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- B01D53/8671—Removing components of defined structure not provided for in B01D53/8603 - B01D53/8668
- B01D53/8675—Ozone
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Abstract
The invention provides a kind of nano composite material catalyst, it is made up of carrier and the immobilized catalytic active component in the carrier, the carrier is the activated carbon or porous Nano carbon balls that hydro-thermal process is crossed, the catalytic active component Mn oxide or the Mn oxide doped with metal oxide, the metal oxide include at least one of ferriferous oxide, cobalt/cobalt oxide, nickel oxide, Cu oxide, zinc oxide, aluminum oxide, cerium oxide, tin-oxide.Catalyst process of the present invention is simple, is easily controlled, is with short production cycle；Used catalyst carrier surface area is big, and the strong vapour lock of adsorptivity is small, difficult for drop-off after catalyst activity component load, has efficient, continuous, lasting purification function to the volatilizations such as the formaldehyde in room air, benzene, phthalic acid ester and semi-volatile organic matter.
Description
Technical field
The present invention relates to a kind of while remove ozone, VOCs and/or s-VOCs nano composite material catalyst and its system
Preparation Method, belong to environmental catalysis technical field.
Background technology
Due to the development of modern industry, the increase of car ownership and modern residential environment and interior decoration etc., largely
Volatile organic matter is discharged into air.And some auxiliary agent, hygienic insecticide, the imperfect combustions of addition in the material are produced
Raw semi-volatile organic matter, because its molecular weight is big, boiling point is high, and saturated vapor forces down, therefore has in the environment compared with volatility
The more difficult degradation of machine thing, existing time are also longer.These materials not only cause destruction to atmospheric environment, more directly endanger the mankind
Health and lives safety.Technology currently used for VOCs treatment mainly includes：Charcoal absorption, catalysis burning, biology
UF membrane, ultraviolet catalytic and non-thermal plasma trap.But these technologies are in actual applications, certain lack all be present
Point, active carbon adsorption technology can only be by nuisance adsorption storage, and can not be decomposed or removed, and effect is lost if saturation
Fruit；Device structure needed for catalysis burning is complicated, and cost is higher, and the high energy consumption caused by burning in addition also limit technique
Development；During biological membrane separation technique organics removal often due to the blocking of film and fail.And ultraviolet catalytic and with it is above-mentioned
Technology is compared, and VOCs and/or s-VOCs efficiently can be converted into water and dioxy by ultraviolet catalytic and non-thermal plasma trap
Change carbon, but can also produce harmful side product ozone simultaneously.And ozone be also it is a kind of have significant damage to health, for a long time
In low concentration ozone environment, there can be stimulation to ocular delivery and lung tissue etc., the surface-active of lung can be destroyed
Material, cause pulmonary edema, asthma etc., and central nervous system can be damaged.It can also be damaged human body thyroid function, make skeletal calcium
Change, or even cause the systemic effects of potentiality.Therefore, it is necessary to develop a kind of catalyst of design, ultraviolet catalytic is placed on
With the end of low temperature plasma, its caused ozone, and the VOCs and/or s-VOCs of oxidized residual are decomposed, realizes VOCs, s-
VOCs and remove while ozone.
Find by prior art documents, Chinese invention patent application number 201410365193.0 is entitled：
Ozone cooperative of degrading removes VOCs catalyst and its preparation method and application, that application discloses one kind using activated carbon as load
Body, using Mn oxide as main active component, the loaded catalyst using rare-earth oxide to help active component.The catalyst
Can effective ozone decomposition, and catalysis oxidation Trace Volatile Organic Compounds at normal temperatures.But the synthesis technique of above-mentioned catalyst
Complicated, long preparation period, is not carried out the contact of nanoscale, can not realize height between the activated carbon synthesized and Mn oxide
The adsoption catalysis removal effect of effect, building-up process consume more raw material, it is impossible to a large amount of volatile organic matters of catalysis oxidation,
And it is unfavorable for industrialized application.Mn oxide is more simultaneously is loaded on the sorbent with nano particle its load form, can so as to have
Corrosion function of the ozone for carbon material can be caused.Therefore the prepared catalyst of present invention work can realize metal oxide
Contact in nanoscale with catalyst carrier, simultaneously because effective core shell structure can be formed, efficiently inhaled so as to realize
Attached catalytic elimination effect and the protective effect for kernel carbon material.
The content of the invention
For in the prior art the defects of, remove ozone, VOCs and/or s- simultaneously it is an object of the invention to provide a kind of
VOCs nano composite material catalyst and preparation method thereof, purposes.
The present invention is achieved by the following technical solutions：
In a first aspect, the invention provides a kind of nano composite material catalyst, it is by carrier and immobilized in the carrier
In catalytic active component composition, the carrier is the activated carbon crossed of hydro-thermal process or porous Nano carbon balls, the catalytic activity
Composition Mn oxide or the Mn oxide doped with metal oxide, the metal oxide include ferriferous oxide, cobalt/cobalt oxide,
At least one of nickel oxide, Cu oxide, zinc oxide, aluminum oxide, cerium oxide, tin-oxide.
Preferably, the preparation method of the carrier comprises the following steps：
After carbon source is dissolved in the mixed liquor of deionized water and absolute ethyl alcohol, guarantor is ultrasonically treated and heated successively
Temperature, then scrubbed drying, carrier is obtained, the temperature of the heating is 160~200 DEG C.
Second aspect, the invention provides a kind of preparation side of nano composite material catalyst as claimed in claim 1
Method, it comprises the following steps：
Mn oxide precursor solution is reacted with carrier solution, obtains the nanometer being made up of carrier and Mn oxide
Composite catalyst；Or
After the carrier that Mn oxide presoma and hydro-thermal process are crossed is reacted, obtain being loaded with the load of Mn oxide
Body；
Respectively metal oxide precursor and be loaded with Mn oxide support dispersion in deionized water, obtain metal oxygen
Compound precursor solution and support dispersion；
The metal oxide carrier solution is added in support dispersion, after stirring 0.5~10h, cleaning, dries, obtains
To powder, i.e., the nano composite material catalyst formed by carrier and doped with the Mn oxide of metal oxide.
Preferably, the nano composite material formed by carrier and doped with the Mn oxide of metal oxide
The preparation of catalyst also comprises the following steps：
By the powder under an inert atmosphere, calcined in 350~750 DEG C.Inert atmosphere calcining purpose is further
Crystallization, activity and selectivity can be more preferable.
Preferably, the preparation method of the carrier solution is：
By 0.005~5g activated carbons or porous Nano carbon balls ultrasonic disperse in 5~500mL deionized waters, carrier is produced
Solution.
Preferably, the preparation method of the Mn oxide precursor solution is：
By 0.005~5g ultrasonic disperses containing manganese compound in 5~500mL deionized waters.
Preferably, the Mn oxide presoma includes KMnO4、MnSO4、Mn(NO3)2、MnCl2Or Mn (Ac)2
At least one of.
The third aspect, present invention also offers a kind of nano composite material catalyst as the aforementioned at air cleaning facility end
The purposes at end.
Preferably, the air cleaning facility includes ozone generator, uviol lamp, plasma, electrostatic precipitation
Device
Compared with prior art, the present invention has following beneficial effect：
1st, the invention provides a kind of efficient nano composite catalyst, its by high adsorption carrier and catalytic activity
Composition is combined in nanoscale, can be used for and ozone generator, uviol lamp photocatalysis, low temperature plasma or electrostatic
The equipment such as dedusting are combined, and using the activated centre of catalyst, ozone caused by decomposition the said equipment, it is secondary to reduce its at normal temperatures
The discharge of product；The activated carbon or the high adsorption of porous Nano carbon balls that hydro-thermal process is crossed simultaneously inhale VOCs and/or s-VOCs
Be attached to catalyst surface, fully reacted in the active oxygen atom that catalyst surface is decomposed to form with ozone, so as to improve VOCs and/
Or s-VOCs removal efficiency；
2nd, catalyst process of the present invention is simple, is easily controlled, is with short production cycle；Used catalyst carrier surface area is big, inhales
The attached strong vapour lock of property is small, difficult for drop-off after catalyst activity component load, to the formaldehyde in room air, benzene, attached phthalic acid ester
There is efficient, continuous, lasting purification function Deng volatilization and semi-volatile organic matter.
Brief description of the drawings
The detailed description made by reading with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is that porous Nano carbon balls TEM prepared by the embodiment of the present invention 1 characterizes schematic diagram；
Fig. 2 is that the TEM of nano composite material catalyst prepared by the embodiment of the present invention 1 characterizes schematic diagram.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment 1
The present embodiment is related to a kind of while removes ozone, VOCs and/or s-VOCs with MnOxFor urging for catalytic active component
The preparation method of agent：
Step 1, activated carbon or porous Nano carbon balls ultrasonic disperse that 0.15g hydro-thermal process crosses are weighed in 50mL deionizations
In water, Fig. 1 is that the porous Nano carbon balls TEM that hydro-thermal process is crossed characterizes schematic diagram；
Step 2, weigh 0.125gKMnO4、MnSO4、Mn(NO3)2、MnCl2Or Mn (Ac)2Ultrasonic disperse in 50mL go from
In sub- water, by KMnO4、MnSO4、Mn(NO3)2、MnCl2Or Mn (Ac)2Solution is slowly added to the activated carbon or more that hydro-thermal process is crossed
In the Nano carbon balls solution of hole, magnetic agitation 1 hour；
Step 3, mixed solution scrubbed drying of the magnetic agitation after 1 hour, obtains nano composite material catalyst, Fig. 2
As KMnO4The C MnO prepared with the reaction of porous Nano carbon ballsxCatalyst.
Implementation result：By the above-mentioned C@MnO of 0.1gxNano composite material catalyst is placed in U-tube, and granularity is 40~60
Mesh, initial ozone concentration are 60ppm, concentration of formaldehyde 60ppm, benzene concentration 60ppm, and diethyl phthalate concentration is
60ppm, volume space velocity 50,000h-1, the removal efficiency of ozone is 100%, and the removal efficiency of formaldehyde is 31.5%, and benzene is gone
Except efficiency is 20.1%, the removal efficiency of diethyl phthalate is 16.2%, be not passed through such as in mixed gas VOCs or
SVOCs, the removal efficiency of ozone is 100%, detects no CO2, CO or other VOCs are produced.
Comparative example 1
This comparative example is related to change ozone concentration：Specially：By the above-mentioned C@MnO of 0.1gxNano composite material catalyst is put
In U-tube, granularity is 40~60 mesh, and initial ozone concentration is 180ppm, concentration of formaldehyde 60ppm, phthalic acid two
Ethyl ester concentration is 60ppm, volume space velocity 50,000h-1, the removal efficiency of ozone is 100%, and the removal efficiency of formaldehyde is
97.5%, the removal efficiency of benzene is 76.3%, and the removal efficiency of diethyl phthalate is 65.2%.
Comparative example 2
This comparative example is related to change ozone concentration：Specially：By the above-mentioned C@MnO of 0.1gxNano composite material catalyst is put
In U-tube, granularity is 40~60 mesh, and initial ozone concentration is 300ppm, concentration of formaldehyde 60ppm, and benzene concentration is
60ppm, diethyl phthalate concentration are 60ppm, volume space velocity 50,000h-1, the removal efficiency of ozone is 100%, first
The removal efficiency of aldehyde is 100%, and the removal efficiency of benzene is 100%, and the removal efficiency of diethyl phthalate is 88.7%.
Comparative example 3
This comparative example is related to change ozone concentration：Specially：By the above-mentioned C@MnO of 0.1gxNano composite material catalyst is put
In U-tube, granularity is 40~60 mesh, and initial ozone concentration is 420ppm, concentration of formaldehyde 60ppm, and benzene concentration is
60ppm, diethyl phthalate concentration are 60ppm, volume space velocity 50,000h-1, the removal efficiency of ozone is 100%, first
The removal efficiency of aldehyde is 100%, and the removal efficiency of diethyl phthalate is 100%.
Embodiment 2
The present embodiment is related to a kind of while removes ozone, VOCs and/or s-VOCs with MnOxFor urging for catalytic active component
The preparation method of agent：
Step 1, activated carbon or porous Nano carbon balls ultrasonic disperse that 0.15g hydro-thermal process crosses are weighed in 50mL deionizations
In water；
Step 2, weigh 0.125gKMnO4、MnSO4、Mn(NO3)2、MnCl2Or Mn (Ac)2Ultrasonic disperse in 50mL go from
In sub- water, by KMnO4、MnSO4、Mn(NO3)2、MnCl2Or Mn (Ac)2Solution is slowly added to the activated carbon or more that hydro-thermal process is crossed
In the Nano carbon balls solution of hole, porous ceramic plate is placed in one, magnetic agitation 1 hour；
Step 3, porous ceramic plate is taken out, scrubbed drying, obtain loaded catalyst.
Implementation result：By above-mentioned C@MnOxIt is 1.0m/s that/porous ceramic plate loaded catalyst, which is placed in cross sectional flow rate, formaldehyde
Entrance concentration is 1.0ppm, and benzene entrance concentration is 1.0ppm, and diethyl phthalate entrance concentration is in 1.0ppm wind-tunnel,
Catalyst leading portion opens high-pressure electrostatic component (voltage 8000V, power 5W), and wind-tunnel outlet concentration of formaldehyde is down to after 30 minutes
0.75ppm, outlet benzene concentration are 0.81ppm, and outlet diethyl phthalate concentration is 0.88ppm, and ozone concentration is
27.6ppb。
Comparative example 4
This comparative example is related to the voltage and power for changing high-pressure electrostatic component：Specially：By above-mentioned C@MnOx/ porous ceramics
It is 1.0m/s that plate loaded catalyst, which is placed in cross sectional flow rate, and formaldehyde entrance concentration is 1.0ppm, and benzene entrance concentration is 1.0ppm, adjacent
Diethyl phthalate entrance concentration is in 1.0ppm wind-tunnel, catalyst leading portion open high-pressure electrostatic component (voltage 10000V,
Power 8W), wind-tunnel outlet concentration of formaldehyde is down to 0.69ppm after 30 minutes, and outlet benzene concentration is 0.76ppm, exports O-phthalic
Diethyl phthalate concentration is 0.82ppm, ozone concentration 29.3ppb.
Comparative example 5
This comparative example, which is related to, changes high-pressure electrostatic component voltage and power：Specially：By above-mentioned C@MnOx/ porous ceramic plate
It is 1.0m/s that loaded catalyst, which is placed in cross sectional flow rate, and formaldehyde entrance concentration is 1.0ppm, and benzene entrance concentration is 1.0ppm, adjacent benzene
Dicarboxylate entrance concentration is in 1.0ppm wind-tunnel, and catalyst leading portion opens high-pressure electrostatic component (voltage 12000V, work(
Rate 10W), wind-tunnel outlet concentration of formaldehyde is down to 0.63ppm after 30 minutes, and outlet benzene concentration is 0.71ppm, exports phthalic acid
Diethyl ester concentration is 0.80ppm, ozone concentration 32.4ppb.
Embodiment 3
The present embodiment is related to a kind of while removes ozone, VOCs and/or s-VOCs with MnOx-NiOxFor catalytic active component
Catalyst preparation method：
Step 1, activated carbon or porous Nano carbon balls ultrasonic disperse that 0.15g hydro-thermal process crosses are weighed in 50mL deionizations
In water；
Step 2, weigh 0.125gKMnO4、MnSO4、Mn(NO3)2、MnCl2Or Mn (Ac)2Ultrasonic disperse in 50mL go from
In sub- water, by KMnO4Solution is slowly added in the activated carbon that hydro-thermal process crosses or porous Nano carbon balls solution, and magnetic agitation 1 is small
When；
Step 3, weigh 0.23gNi (NO3)2Ultrasonic disperse is in 50mL deionized waters；
Step 4, by Ni (NO3)2Solution is added thereto, and stirs 3h；
Step 5, the scrubbed drying of mixed solution, obtains nano composite material catalyst.
Implementation result：By the above-mentioned C@MnO of 0.1gx-NiOxNano composite material catalyst is placed in U-tube, granularity 40
~60 mesh, initial ozone concentration are 60ppm, concentration of formaldehyde 60ppm, benzene concentration 60ppm, diethyl phthalate concentration
For 60ppm, volume space velocity 50,000h-1, the removal efficiency of ozone is 100%, and the removal efficiency of formaldehyde is 35.6%, benzene
Clearance is 24.6%, and the removal efficiency of diethyl phthalate is 19.3%.
Comparative example 6
This comparative example is related to change ozone concentration：Specially：By the above-mentioned C@MnO of 0.1gx-NiOxNano composite material is catalyzed
Agent is placed in U-tube, and granularity is 40~60 mesh, and initial ozone concentration is 180ppm, concentration of formaldehyde 60ppm, the concentration of benzene
For 60ppm, diethyl phthalate concentration is 60ppm, volume space velocity 50,000h-1, the removal efficiency of ozone is 100%,
The removal efficiency of formaldehyde is 98.3%, and the removal efficiency of benzene is 81.2%, and the removal efficiency of diethyl phthalate is
70.7%.
Comparative example 7
This comparative example is related to change ozone concentration：Specially：By the above-mentioned C@MnO of 0.1gx-NiOxNano composite material is catalyzed
Agent is placed in U-tube, and granularity is 40~60 mesh, and initial ozone concentration is 300ppm, concentration of formaldehyde 60ppm, ozone concentration
For 60ppm, diethyl phthalate concentration is 60ppm, volume space velocity 50,000h-1, the removal efficiency of ozone is 100%,
The removal efficiency of formaldehyde is 100%, and the clearance of benzene is 100%, and the removal efficiency of diethyl phthalate is 90.2%.
Comparative example 8
This comparative example is related to change ozone concentration：Specially：By the above-mentioned C@MnO of 0.1gx-NiOxNano composite material is catalyzed
Agent is placed in U-tube, and granularity is 40~60 mesh, and initial ozone concentration is 420ppm, concentration of formaldehyde 60ppm, the concentration of benzene
For 60pppm, diethyl phthalate concentration is 60ppm, volume space velocity 50,000h-1, the removal efficiency of ozone is
100%, the removal efficiency of formaldehyde is 100%, and the removal efficiency of benzene is 100%, and the removal efficiency of diethyl phthalate is
100%.
Embodiment 4
The present embodiment is related to a kind of while removes ozone, VOCs and/or s-VOCs with MnOx-NiOxFor catalytic active component
Catalyst preparation method：
Step 1, activated carbon or porous Nano carbon balls ultrasonic disperse that 0.15g hydro-thermal process crosses are weighed in 50mL deionizations
In water；
Step 2, weigh 0.125g KMnO4、MnSO4、Mn(NO3)2、MnCl2Or Mn (Ac)2Ultrasonic disperse in 50mL go from
In sub- water, by KMnO4、MnSO4、Mn(NO3)2、MnCl2Or Mn (Ac)2Solution is slowly added to the activated carbon or more that hydro-thermal process is crossed
In the Nano carbon balls solution of hole, porous ceramic plate is placed in one, magnetic agitation 1 hour；
Step 3, weigh 0.23g Ni (NO3)2Ultrasonic disperse is in 50mL deionized waters；
Step 4, by Ni (NO3)2Solution is added thereto, and stirs 3h；
Step 5, porous ceramic plate is taken out, scrubbed drying, obtain loaded catalyst.
Implementation result：By above-mentioned C@MnOx-NiOxIt is 1.0m/s that/porous ceramic plate loaded catalyst, which is placed in cross sectional flow rate,
Formaldehyde entrance concentration is 1.0ppm, and benzene entrance concentration is 1.0ppm, and diethyl phthalate entrance concentration is 1.0ppm wind
In hole, catalyst leading portion opens high-pressure electrostatic component (voltage 8000V, power 5W), wind-tunnel outlet concentration of formaldehyde drop after 30 minutes
To 0.73ppm, outlet benzene concentration is 0.76ppm, and outlet diethyl phthalate concentration is 0.86ppm, and ozone concentration is
27.5ppb。
Comparative example 9
This comparative example, which is related to, changes high-pressure electrostatic component voltage and power：Specially：By above-mentioned C@MnOx-NiOx/ porous pottery
It is 1.0m/s that porcelain plate loaded catalyst, which is placed in cross sectional flow rate, and formaldehyde entrance concentration is 1.0ppm, and benzene entrance concentration is 1.0ppm,
Diethyl phthalate entrance concentration is in 1.0ppm wind-tunnel, and catalyst leading portion opens high-pressure electrostatic component (voltage
10000V, power 8W), wind-tunnel outlet concentration of formaldehyde is down to 0.66ppm after 30 minutes, and outlet benzene concentration is 0.70ppm, and outlet is adjacent
Diethyl phthalate concentration is 0.80ppm, ozone concentration 28.4ppb.
Comparative example 10
This comparative example, which is related to, changes high-pressure electrostatic component voltage and power：Specially：By above-mentioned C@MnOx-NiOx/ porous pottery
It is 1.0m/s that porcelain plate loaded catalyst, which is placed in cross sectional flow rate, and formaldehyde entrance concentration is 1.0ppm, and benzene entrance concentration is 1.0ppm,
Diethyl phthalate entrance concentration is in 1.0ppm wind-tunnel, and catalyst leading portion opens high-pressure electrostatic component (voltage
12000V, power 10W), wind-tunnel outlet concentration of formaldehyde is down to 0.59ppm after 30 minutes, and outlet benzene concentration is 0.65ppm, outlet
Diethyl phthalate concentration is 0.78ppm, ozone concentration 30.8ppb.
Embodiment 5
The present embodiment is related to a kind of while removes ozone, VOCs and/or s-VOCs with MnOx-CoOxFor catalytic active component
Catalyst preparation method：
Step 1, activated carbon or porous Nano carbon balls ultrasonic disperse that 0.15g hydro-thermal process crosses are weighed in 50mL deionizations
In water；
Step 2, weigh 0.125g KMnO4、MnSO4、Mn(NO3)2、MnCl2Or Mn (Ac)2Ultrasonic disperse in 50mL go from
In sub- water, by KMnO4、MnSO4、Mn(NO3)2、MnCl2Or Mn (Ac)2Solution is slowly added to the activated carbon or more that hydro-thermal process is crossed
In the Nano carbon balls solution of hole, magnetic agitation 1 hour；
Step 3, weigh 0.23g Co (NO3)2Ultrasonic disperse is in 50mL deionized waters；
Step 4, by Co (NO3)2Solution is added thereto, and stirs 3h；
Step 5, the scrubbed drying of mixed solution, obtains nano composite material catalyst.
Implementation result：By the above-mentioned C@MnO of 0.1gx-CoOxNano composite material catalyst is placed in U-tube, granularity 40
~60 mesh, initial ozone concentration are 60ppm, concentration of formaldehyde 60ppm, benzene concentration 60ppm, diethyl phthalate concentration
For 60ppm, volume space velocity 50,000h-1, the removal efficiency of ozone is 100%, and the removal efficiency of formaldehyde is 35.7%, benzene
Removal efficiency is 24.8%, and the removal efficiency of diethyl phthalate is 19.5%.
Comparative example 11
This comparative example is related to change ozone concentration：Specially：By the above-mentioned C@MnO of 0.1gx-CoOxNano composite material is catalyzed
Agent is placed in U-tube, and granularity is 40~60 mesh, and initial ozone concentration is 180ppm, concentration of formaldehyde 60ppm, the concentration of benzene
For 60ppm, diethyl phthalate concentration is 60ppm, volume space velocity 50,000h-1, the removal efficiency of ozone is 100%,
The removal efficiency of formaldehyde is 98.1%, and the removal efficiency of benzene is 84.6%, and the removal efficiency of diethyl phthalate is
70.5%.
Comparative example 12
This comparative example is related to change ozone concentration：Specially：By the above-mentioned C@MnO of 0.1gx-CoOxNano composite material is catalyzed
Agent is placed in U-tube, and granularity is 40~60 mesh, and initial ozone concentration is 300ppm, concentration of formaldehyde 60ppm, and benzene concentration is
60ppm, diethyl phthalate concentration are 60ppm, volume space velocity 50,000h-1, the removal efficiency of ozone is 100%, first
The removal efficiency of aldehyde is 100%, and the removal efficiency of benzene is 100%, and the removal efficiency of diethyl phthalate is 90.0%.
Comparative example 13
This comparative example is related to change ozone concentration：Specially：By the above-mentioned C@MnO of 0.1gx-CoOxNano composite material is catalyzed
Agent is placed in U-tube, and granularity is 40~60 mesh, and initial ozone concentration is 420ppm, concentration of formaldehyde 60ppm, and benzene concentration is
60ppm, diethyl phthalate concentration are 60ppm, volume space velocity 50,000h-1, the removal efficiency of ozone is 100%, first
The removal efficiency of aldehyde is 100%, and the removal efficiency of benzene is 100%, and the removal efficiency of diethyl phthalate is 100%.
Embodiment 6
The present embodiment is related to a kind of while removes ozone, VOCs and/or s-VOCs with MnOx-CoOxFor catalytic active component
Catalyst preparation method：
Step 1, activated carbon or porous Nano carbon balls ultrasonic disperse that 0.15g hydro-thermal process crosses are weighed in 50mL deionizations
In water；
Step 2, weigh 0.125gKMnO4、MnSO4、Mn(NO3)2、MnCl2Or Mn (Ac)2Ultrasonic disperse in 50mL go from
In sub- water, by KMnO4、MnSO4、Mn(NO3)2、MnCl2Or Mn (Ac)2Solution is slowly added to the activated carbon or more that hydro-thermal process is crossed
In the Nano carbon balls solution of hole, porous ceramic plate is placed in one, magnetic agitation 1 hour；
Step 3, weigh 0.23gCo (NO3)2Ultrasonic disperse is in 50mL deionized waters；
Step 4, by Co (NO3)2Solution is added thereto, and stirs 3h；
Step 5, porous ceramic plate is taken out, scrubbed drying, obtain loaded catalyst.
Implementation result：By above-mentioned C@MnOx-CoOxIt is 1.0m/s that/porous ceramic plate loaded catalyst, which is placed in cross sectional flow rate,
Formaldehyde entrance concentration is 1.0ppm, and benzene entrance concentration is 1.0ppm, and diethyl phthalate entrance concentration is 1.0ppm wind
In hole, catalyst leading portion opens high-pressure electrostatic component (voltage 8000V, power 5W), wind-tunnel outlet concentration of formaldehyde drop after 30 minutes
To 0.74ppm, outlet benzene concentration is 0.77ppm, and outlet diethyl phthalate concentration is 0.87ppm, and ozone concentration is
27.9ppb。
Comparative example 14
This comparative example, which is related to, changes high-pressure electrostatic component voltage and power：Specially：By above-mentioned C@MnOx-CoOx/ porous pottery
It is 1.0m/s that porcelain plate loaded catalyst, which is placed in cross sectional flow rate, and formaldehyde entrance concentration is 1.0ppm, and benzene entrance concentration is 1.0ppm,
Diethyl phthalate entrance concentration is in 1.0ppm wind-tunnel, and catalyst leading portion opens high-pressure electrostatic component (voltage
10000V, power 8W), wind-tunnel outlet concentration of formaldehyde is down to 0.67ppm after 30 minutes, and outlet benzene concentration is 0.74ppm, and outlet is adjacent
Diethyl phthalate concentration is 0.81ppm, ozone concentration 28.9ppb.
Comparative example 15
This comparative example, which is related to, changes high-pressure electrostatic component voltage and power：Specially：By above-mentioned C@MnOx-CoOx/ porous pottery
It is 1.0m/s that porcelain plate loaded catalyst, which is placed in cross sectional flow rate, and formaldehyde entrance concentration is 1.0ppm, and benzene entrance concentration is 1.0ppm,
Diethyl phthalate entrance concentration is in 1.0ppm wind-tunnel, and catalyst leading portion opens high-pressure electrostatic component (voltage
12000V, power 10W), wind-tunnel outlet concentration of formaldehyde is down to 0.60ppm after 30 minutes, and outlet benzene concentration is 0.69ppm, outlet
Diethyl phthalate concentration is 0.79ppm, ozone concentration 32.8ppb.
Embodiment 7
The present embodiment is related to a kind of while removes ozone, VOCs and/or s-VOCs with MnOx-CeOxFor catalytic active component
Catalyst preparation method：
Step 1, activated carbon or porous Nano carbon balls ultrasonic disperse that 0.15g hydro-thermal process crosses are weighed in 50mL deionizations
In water；
Step 2, weigh 0.125gKMnO4、MnSO4、Mn(NO3)2、MnCl2Or Mn (Ac)2Ultrasonic disperse in 50mL go from
In sub- water, by KMnO4、MnSO4、Mn(NO3)2、MnCl2Or Mn (Ac)2Solution is slowly added to the activated carbon or more that hydro-thermal process is crossed
In the Nano carbon balls solution of hole, magnetic agitation 1 hour；
Step 3, weigh 0.34gCe (NO3)3Ultrasonic disperse is in 50mL deionized waters；
Step 4, by Ce (NO3)3Solution is added thereto, and stirs 3h；
Step 5, the scrubbed drying of mixed solution, obtains nano composite material catalyst.
Implementation result：By the above-mentioned C@MnO of 0.1gx-CeOxNano composite material catalyst is placed in U-tube, granularity 40
~60 mesh, initial ozone concentration are 60ppm, benzene concentration 60ppm, concentration of formaldehyde 60ppm, diethyl phthalate concentration
For 60ppm, volume space velocity 50,000h-1, the removal efficiency of ozone is 100%, and the removal efficiency of formaldehyde is 34.6%, benzene
Removal efficiency is 26.6%, and the removal efficiency of diethyl phthalate is 20.4%.
Comparative example 16
This comparative example is related to change ozone concentration：Specially：By the above-mentioned C@MnO of 0.1gx-CeOxNano composite material is catalyzed
Agent is placed in U-tube, and granularity is 40~60 mesh, and initial ozone concentration is 180ppm, concentration of formaldehyde 60ppm, and benzene concentration is
60ppm, diethyl phthalate concentration are 60ppm, volume space velocity 50,000h-1, the removal efficiency of ozone is 100%, first
The removal efficiency of aldehyde is 98.5%, and the removal efficiency of benzene is 83.6%, and the removal efficiency of diethyl phthalate is 72.5%.
Comparative example 17
This comparative example is related to change ozone concentration：Specially：By the above-mentioned C@MnO of 0.1gx-CeOxNano composite material is catalyzed
Agent is placed in U-tube, and granularity is 40~60 mesh, and initial ozone concentration is 300ppm, concentration of formaldehyde 60ppm, and benzene concentration is
60ppm, diethyl phthalate concentration are 60ppm, volume space velocity 50,000h-1, the removal efficiency of ozone is 100%, first
The removal efficiency of aldehyde is 100%, and the removal efficiency of benzene is 100%, and the removal efficiency of diethyl phthalate is 91.3%.
Comparative example 18
This comparative example is related to change ozone concentration：Specially：By the above-mentioned C@MnO of 0.1gx-CeOxNano composite material is catalyzed
Agent is placed in U-tube, and granularity is 40~60 mesh, and initial ozone concentration is 420ppm, concentration of formaldehyde 60ppm, and benzene concentration is
60ppm, diethyl phthalate concentration are 60ppm, volume space velocity 50,000h-1, the removal efficiency of ozone is 100%, first
The removal efficiency of aldehyde is 100%, and the removal efficiency of diethyl phthalate is 100%.
Embodiment 8
The present embodiment is related to a kind of while removes ozone, VOCs and/or s-VOCs with MnOx-CeOxFor catalytic active component
Catalyst preparation method：
Step 1, activated carbon or porous Nano carbon balls ultrasonic disperse that 0.15g hydro-thermal process crosses are weighed in 50mL deionizations
In water；
Step 2, weigh 0.125gKMnO4、MnSO4、Mn(NO3)2、MnCl2Or Mn (Ac)2Ultrasonic disperse in 50mL go from
In sub- water, by KMnO4、MnSO4、Mn(NO3)2、MnCl2Or Mn (Ac)2Solution is slowly added to the activated carbon or more that hydro-thermal process is crossed
In the Nano carbon balls solution of hole, porous ceramic plate is placed in one, magnetic agitation 1 hour；
Step 3, weigh 0.34gCe (NO3)3Ultrasonic disperse is in 50mL deionized waters；
Step 4, by Ce (NO3)3Solution is added thereto, and stirs 3h；
Step 5, porous ceramic plate is taken out, scrubbed drying, obtain loaded catalyst.
Implementation result：By above-mentioned C@MnOx-CeOxIt is 1.0m/s that/porous ceramic plate loaded catalyst, which is placed in cross sectional flow rate,
Formaldehyde entrance concentration is 1.0ppm, and benzene entrance concentration is 1.0ppm, and diethyl phthalate entrance concentration is 1.0ppm wind
In hole, catalyst leading portion opens high-pressure electrostatic component (voltage 8000V, power 5W), wind-tunnel outlet concentration of formaldehyde drop after 30 minutes
To 0.71ppm, outlet benzene concentration is 0.80ppm, and outlet diethyl phthalate concentration is 0.85ppm, and ozone concentration is
27.4ppb。
Comparative example 19
This comparative example, which is related to, changes high-pressure electrostatic component voltage and power：Specially：By above-mentioned C@MnOx-CeOx/ porous pottery
It is 1.0m/s that porcelain plate loaded catalyst, which is placed in cross sectional flow rate, and formaldehyde entrance concentration is 1.0ppm, and benzene entrance concentration is 1.0ppm,
Diethyl phthalate entrance concentration is in 1.0ppm wind-tunnel, and catalyst leading portion opens high-pressure electrostatic component (voltage
10000V, power 8W), wind-tunnel outlet concentration of formaldehyde is down to 0.64ppm after 30 minutes, and outlet benzene concentration is 0.71ppm, and outlet is adjacent
Diethyl phthalate concentration is 0.77ppm, ozone concentration 28.1ppb.
Comparative example 20
This comparative example, which is related to, changes high-pressure electrostatic component voltage and power：Specially：By above-mentioned C@MnOx-CeOx/ porous pottery
It is 1.0m/s that porcelain plate loaded catalyst, which is placed in cross sectional flow rate, and formaldehyde entrance concentration is 1.0ppm, and benzene entrance concentration is 1.0ppm,
Diethyl phthalate entrance concentration is in 1.0ppm wind-tunnel, and catalyst leading portion opens high-pressure electrostatic component (voltage
12000V, power 10W), wind-tunnel outlet concentration of formaldehyde is down to 0.58ppm after 30 minutes, and outlet benzene concentration is 0.70pppm, outlet
Diethyl phthalate concentration is 0.76ppm, ozone concentration 31.6ppb.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (9)
- A kind of 1. nano composite material catalyst, it is characterised in that by carrier and the immobilized catalytic activity in the carrier into Be grouped into, the carrier is the activated carbon crossed of hydro-thermal process or porous Nano carbon balls, the catalytic active component Mn oxide or Doped with the Mn oxide of metal oxide, the metal oxide includes ferriferous oxide, cobalt/cobalt oxide, nickel oxide, copper oxygen At least one of compound, zinc oxide, aluminum oxide, cerium oxide, tin-oxide.
- 2. nano composite material catalyst as claimed in claim 1, it is characterised in that the preparation method of the carrier is included such as Lower step：After carbon source is dissolved in the mixed liquor of deionized water and absolute ethyl alcohol, it is ultrasonically treated successively and heating and thermal insulation, then Scrubbed drying, carrier is obtained, the temperature of the heating is 160~200 DEG C.
- 3. a kind of preparation method of nano composite material catalyst as claimed in claim 1, it is characterised in that including following step Suddenly：Mn oxide precursor solution is reacted with carrier solution, obtains being made up of carrier and Mn oxide nano combined Material catalyst；OrAfter the carrier that Mn oxide presoma and hydro-thermal process are crossed is reacted, obtain being loaded with the carrier of Mn oxide；Respectively metal oxide precursor and be loaded with Mn oxide support dispersion in deionized water, obtain metal oxide Precursor solution and support dispersion；The metal oxide carrier solution is added in support dispersion, after stirring 0.5~10h, cleaning, dries, obtains powder Body, i.e., the nano composite material catalyst formed by carrier and doped with the Mn oxide of metal oxide.
- 4. the preparation method of nano composite material catalyst as claimed in claim 2, it is characterised in that described by carrier and mixing The preparation of the miscellaneous nano composite material catalyst being made up of the Mn oxide of metal oxide also comprises the following steps：By the powder under an inert atmosphere, calcined in 350~750 DEG C.
- 5. the preparation method of nano composite material catalyst as claimed in claim 2, it is characterised in that the carrier solution Preparation method is：By 0.005~5g activated carbons or porous Nano carbon balls ultrasonic disperse in 5~500mL deionized waters, carrier solution is produced.
- 6. the preparation method of nano composite material catalyst as claimed in claim 2, it is characterised in that before the Mn oxide Drive liquid solution preparation method be：By 0.005~5g ultrasonic disperses containing manganese compound in 5~500mL deionized waters.
- 7. the preparation method of nano composite material catalyst as claimed in claim 6, it is characterised in that before the Mn oxide Driving body includes KMnO4、MnSO4、Mn(NO3)2、MnCl2Or Mn (Ac)2At least one of.
- 8. a kind of nano composite material catalyst as claimed in claim 1 is in the purposes of air cleaning facility end.
- 9. purposes as claimed in claim 8, it is characterised in that the air cleaning facility include ozone generator, uviol lamp, Plasma, electrostatic precipitator.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109126699A (en) * | 2018-09-14 | 2019-01-04 | 蚌埠越昇科技服务有限公司 | A kind of method and its application preparing carried active carbon using furfural dregs as raw material |
| CN109158111A (en) * | 2018-10-03 | 2019-01-08 | 佛山霖诺环保科技有限公司 | A kind of preparation method of nano carbon-base Supported Manganese cobalt dual-metal formaldehyde catalyst |
| CN109985514A (en) * | 2019-02-22 | 2019-07-09 | 敏达环保科技（嘉兴）有限公司 | A kind of preparation method of exhaust gas treating agent |
| CN112410037A (en) * | 2020-10-15 | 2021-02-26 | 南京工业大学 | Composite functional material for soil pollution treatment and preparation method thereof |
| CN112619663A (en) * | 2020-09-10 | 2021-04-09 | 何俊 | Cobalt or copper doped birnessite catalyst, preparation method and application thereof |
| CN112808278A (en) * | 2021-01-07 | 2021-05-18 | 浙江工业大学 | Mixed metal nano-magnetic ozone catalyst for degrading antibiotic wastewater and application |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101310856A (en) * | 2007-05-24 | 2008-11-26 | 中国科学院大连化学物理研究所 | Catalyst for directly synthesizing high carbon primary alcohol using CO hydrogenation and preparation method thereof |
| CN101837295A (en) * | 2009-03-18 | 2010-09-22 | 宁波市镇海远大机电制造有限公司 | Load type ozone nanometer type reduction catalyst and manufacturing method thereof |
| CN102350506A (en) * | 2011-10-31 | 2012-02-15 | 西南石油大学 | Preparation method of nano-structure WC-Co composite powder |
| CN103381363A (en) * | 2013-07-29 | 2013-11-06 | 上海交通大学 | Catalyst for removing ozone and harmful organic matter simultaneously and preparation method and application thereof |
| CN104084192A (en) * | 2014-07-29 | 2014-10-08 | 山东沁宇环保科技有限公司 | Catalyst for degrading ozone and removing VOCs synergistically as well as preparation method and application of catalyst |
| CN107159262A (en) * | 2017-06-23 | 2017-09-15 | 江汉大学 | Room temperature removes formaldehyde gas Pd/CuxThe preparation method of O@GO composite catalysts |
-
2017
- 2017-10-26 CN CN201711021330.9A patent/CN107876044A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101310856A (en) * | 2007-05-24 | 2008-11-26 | 中国科学院大连化学物理研究所 | Catalyst for directly synthesizing high carbon primary alcohol using CO hydrogenation and preparation method thereof |
| CN101837295A (en) * | 2009-03-18 | 2010-09-22 | 宁波市镇海远大机电制造有限公司 | Load type ozone nanometer type reduction catalyst and manufacturing method thereof |
| CN102350506A (en) * | 2011-10-31 | 2012-02-15 | 西南石油大学 | Preparation method of nano-structure WC-Co composite powder |
| CN103381363A (en) * | 2013-07-29 | 2013-11-06 | 上海交通大学 | Catalyst for removing ozone and harmful organic matter simultaneously and preparation method and application thereof |
| CN104084192A (en) * | 2014-07-29 | 2014-10-08 | 山东沁宇环保科技有限公司 | Catalyst for degrading ozone and removing VOCs synergistically as well as preparation method and application of catalyst |
| CN107159262A (en) * | 2017-06-23 | 2017-09-15 | 江汉大学 | Room temperature removes formaldehyde gas Pd/CuxThe preparation method of O@GO composite catalysts |
Non-Patent Citations (1)
| Title |
|---|
| XIAOMING SUN ET AL.: "Colloidal Carbon Spheres and Their Core/Shell Structures with Noble-Metal Nanoparticles", 《ANGEW. CHEM. INT. ED.》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109126699A (en) * | 2018-09-14 | 2019-01-04 | 蚌埠越昇科技服务有限公司 | A kind of method and its application preparing carried active carbon using furfural dregs as raw material |
| CN109126699B (en) * | 2018-09-14 | 2021-09-17 | 蚌埠越昇科技服务有限公司 | Method for preparing supported activated carbon by taking furfural residues as raw materials and application of method |
| CN109158111A (en) * | 2018-10-03 | 2019-01-08 | 佛山霖诺环保科技有限公司 | A kind of preparation method of nano carbon-base Supported Manganese cobalt dual-metal formaldehyde catalyst |
| CN109158111B (en) * | 2018-10-03 | 2022-04-26 | 佛山霖诺环保科技有限公司 | Preparation method of nano carbon-based supported manganese-cobalt bimetallic formaldehyde catalyst |
| CN109985514A (en) * | 2019-02-22 | 2019-07-09 | 敏达环保科技（嘉兴）有限公司 | A kind of preparation method of exhaust gas treating agent |
| CN112619663A (en) * | 2020-09-10 | 2021-04-09 | 何俊 | Cobalt or copper doped birnessite catalyst, preparation method and application thereof |
| CN112410037A (en) * | 2020-10-15 | 2021-02-26 | 南京工业大学 | Composite functional material for soil pollution treatment and preparation method thereof |
| CN112808278A (en) * | 2021-01-07 | 2021-05-18 | 浙江工业大学 | Mixed metal nano-magnetic ozone catalyst for degrading antibiotic wastewater and application |
| CN114749150A (en) * | 2022-04-28 | 2022-07-15 | 南开大学 | Biochar loaded manganese oxide composite material and preparation method and application thereof |
| CN115254096A (en) * | 2022-08-19 | 2022-11-01 | 南华大学 | Catalyst with toluene adsorption and decomposition function and preparation method thereof |
| CN115254096B (en) * | 2022-08-19 | 2023-05-23 | 南华大学 | Catalyst with toluene adsorption and decomposition function and preparation method thereof |
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Application publication date: 20180406 |