CN106629983A - Application of molybdenum sulfide composite activated carbon material in near-infrared photocatalysis denitrification - Google Patents
Application of molybdenum sulfide composite activated carbon material in near-infrared photocatalysis denitrification Download PDFInfo
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- CN106629983A CN106629983A CN201611242635.8A CN201611242635A CN106629983A CN 106629983 A CN106629983 A CN 106629983A CN 201611242635 A CN201611242635 A CN 201611242635A CN 106629983 A CN106629983 A CN 106629983A
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- Prior art keywords
- molybdenum sulfide
- ammonia nitrogen
- activated carbon
- sulfide composite
- carbon materials
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- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 title claims abstract description 56
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 239000002131 composite material Substances 0.000 title claims abstract description 41
- 230000001699 photocatalysis Effects 0.000 title abstract description 6
- 238000007146 photocatalysis Methods 0.000 title abstract description 6
- 239000000463 material Substances 0.000 title abstract description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 64
- 239000003575 carbonaceous material Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 16
- 238000005286 illumination Methods 0.000 claims description 12
- 238000000746 purification Methods 0.000 claims description 12
- 238000012360 testing method Methods 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 11
- 239000007791 liquid phase Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 8
- 238000013033 photocatalytic degradation reaction Methods 0.000 claims description 8
- 229910000069 nitrogen hydride Inorganic materials 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 2
- 239000003610 charcoal Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 12
- 239000003054 catalyst Substances 0.000 abstract description 9
- 229910021529 ammonia Inorganic materials 0.000 abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 6
- 230000000593 degrading effect Effects 0.000 abstract 3
- 239000011941 photocatalyst Substances 0.000 abstract 2
- 230000015556 catabolic process Effects 0.000 description 26
- 238000006731 degradation reaction Methods 0.000 description 26
- 229910052961 molybdenite Inorganic materials 0.000 description 13
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 13
- 230000003197 catalytic effect Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 229910001868 water Inorganic materials 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 230000031700 light absorption Effects 0.000 description 6
- 230000005855 radiation Effects 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 238000002835 absorbance Methods 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 238000001069 Raman spectroscopy Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- NXMWOOVRJPJOSH-UHFFFAOYSA-N C1(=CC=CC=C1)O.C1(=CC=CC=C1)O.[Cl] Chemical compound C1(=CC=CC=C1)O.C1(=CC=CC=C1)O.[Cl] NXMWOOVRJPJOSH-UHFFFAOYSA-N 0.000 description 1
- 241001125671 Eretmochelys imbricata Species 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910004619 Na2MoO4 Inorganic materials 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 description 1
- 229940074439 potassium sodium tartrate Drugs 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000011684 sodium molybdate Substances 0.000 description 1
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 description 1
- 235000011006 sodium potassium tartrate Nutrition 0.000 description 1
- PTISTKLWEJDJID-UHFFFAOYSA-N sulfanylidenemolybdenum Chemical class [Mo]=S PTISTKLWEJDJID-UHFFFAOYSA-N 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- WCTAGTRAWPDFQO-UHFFFAOYSA-K trisodium;hydrogen carbonate;carbonate Chemical compound [Na+].[Na+].[Na+].OC([O-])=O.[O-]C([O-])=O WCTAGTRAWPDFQO-UHFFFAOYSA-K 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/04—Sulfides
- B01J27/047—Sulfides with chromium, molybdenum, tungsten or polonium
- B01J27/051—Molybdenum
-
- B01J35/39—
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/74—Treatment of water, waste water, or sewage by oxidation with air
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
Abstract
The invention discloses application of a molybdenum sulfide composite activated carbon material in near-infrared photocatalysis denitrification. The application comprises the following steps of under the condition of near-infrared light, using the molybdenum sulfide composite activated carbon material as a photocatalyst, and degrading ammonia and nitrogen into N2 and H2O. The application has the advantages that the molybdenum sulfide composite activated carbon material is used as the photocatalyst, so that the molecule identification and infrared photocatalysis degrading functions on the ammonia and nitrogen are realized, and the ammonia and nitrogen are degraded into the N2 and the H2O under the action of the near-infrared light; after the ammonia and nitrogen are repeatedly catalyzed and degraded by the catalyst for 5 to 10 times, the degrading rate of the ammonia and nitrogen is still more than 90%.
Description
Technical field
The present invention relates to a kind of molybdenum sulfide composite reactive Carbon Materials and its using near infrared light in catalytic degradation ammonia nitrogen
Using.
Background technology
Environmental energy is solved the problems, such as with solar energy, is originated from Fujishima in 1972 and is utilized TiO2Optoelectronic pole electrolysis water system
Hydrogen, subsequent Carey was reported in 1976 and is utilized TiO2Photochemical catalytic oxidation eliminates the toxicity of many chlorine diphenol, from this, using the sun
Can degrade environmental contaminants research rapidly become people research focus.But, TiO2Can only utilize and account for solar energy 4% or so
Ultraviolet light, to TiO2It is doped and develops Fe2O3、WO3、Bi2WO6Deng new catalyst, although partly solve to visible
The Utilizing question of light, the exploitation but infrared light for accounting for solar energy nearly 50% is still needed.
In recent years, two-dimensional material received the extensive concern of people due to its good optical and electrology characteristic.And near
The application aspect of infrared light, document only reports MoS2For the research of photo-thermal insoluble drug release treating cancer.Therefore, how to utilize
Infrared light, also becomes the direction of industry research staff research.
The content of the invention
It is an object of the invention to provide a kind of molybdenum sulfide composite reactive Carbon Materials are catalyzed answering in denitrogenation near infrared light
With to overcome the shortcomings of present technology.
To realize aforementioned invention purpose, the technical solution used in the present invention includes：
Embodiments provide a kind of molybdenum sulfide composite reactive Carbon Materials photocatalysis under near infrared light illumination condition
Purposes in degradation of ammonia nitrogen.
Further, the molybdenum sulfide composite reactive Carbon Materials include activated carbon and 1wt%～10wt% molybdenum sulfide particles,
And the molybdenum sulfide is distributed in the activated carbon surface.
Further, the specific surface area of the molybdenum sulfide composite reactive Carbon Materials is 12-16m2/g。
Further, the particle diameter of the molybdenum sulfide composite reactive Carbon Materials is 4.0-5.6nm, and adjacent molybdenum sulfide interlamellar spacing is
0.54-0.7nm。
More preferred, the ammonia nitrogen includes NH3And/or NH4 +。
Further, the range of wavelengths lambda of the near infrared light is 780nm～2500nm.
A kind of purification method of ammonia nitrogen is embodiments provided, it includes：Molybdenum sulfide composite reactive Carbon Materials are added
Enter the liquid-phase system containing ammonia nitrogen, and with liquid-phase system described near infrared light illumination, make the ammonia nitrogen be N by photocatalytic degradation2
And H2O。
Further, the molybdenum sulfide composite reactive Carbon Materials and the mass ratio of ammonia nitrogen are 100mg:5～50mg.
In one more preferred embodiment, a kind of ammonia nitrogen purification method is specifically included：Liquid phase containing ammonia nitrogen is treated
Test sample product mix with molybdenum sulfide composite reactive Carbon Materials inserts in lucifuge reactor, and in the illumination window of the lucifuge reactor
Place arranges the optical filter that can only make that near infrared light passes through, and irradiates the lucifuge reactor with light source afterwards so as in ammonia nitrogen quilt
Photocatalytic degradation is N2And H2O。
In one more preferred embodiment, a kind of ammonia nitrogen purification method is specifically included：
(1) Photoreactor and optical filter are provided, to ensure to only have near infrared radiation to enter Photoreactor；
(2) testing sample and molybdenum sulfide composite reactive Carbon Materials are added in the Photoreactor in step (1), optical filtering is covered
Piece, then illumination under light source is placed in, measure light absorption value of the testing sample described in different time sections in visible light wave range；
(3) according to formula：Ammonia nitrogen degradation rate=(1-Ci/C0) × 100%=(1-Ai/A0) × 100% calculates ammonia nitrogen
Degradation rate.
Further, light absorption value of the testing sample at 554nm is measured.
Further, the molybdenum sulfide composite reactive Carbon Materials repeat after catalytic degradation ammonia nitrogen 5-10 time, the degraded of ammonia nitrogen
Rate is still>90%.
Compared with prior art, advantages of the present invention includes：
(1) method of molybdenum sulfide composite reactive Carbon Materials catalytic degradation ammonia nitrogen of the invention, using near infrared light light by ammonia
Nitrogen degradation is N2And H2O, without the need for adding unnecessary oxidant, so as to reduce cost, and the catalyst repeats catalytic degradation ammonia
After nitrogen 5-10 time, the degradation rate of the ammonia nitrogen is still>90%.
(2) method of molybdenum sulfide composite activated carbon catalytic degradation ammonia nitrogen of the invention, can profit by molybdenum sulfide, activated carbon etc.
With the near infrared light in sunshine, the utilization to solar energy is greatly improved, and the preparation method of the present invention is simple, condition is easy
Control.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in invention, for those of ordinary skill in the art, on the premise of not paying creative work,
Can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the reaction mechanism figure in the embodiment of the present invention 1；
Fig. 2 is molybdenum sulfide (MoS in the embodiment of the present invention 12), activated carbon (AC) and molybdenum sulfide composite activated carbon (AC-MoS2)
XRD；
Fig. 3 is MoS in the embodiment of the present invention 12, AC and AC-MoS2Raman spectrogram；
Fig. 4 a- Fig. 4 d are MoS in the embodiment of the present invention 12, AC and AC-MoS2TEM figure, wherein Fig. 4 a are molybdenum sulfides
TEM schemes, and Fig. 4 b are the TEM figures of activated carbon, and Fig. 4 c and Fig. 4 d are AC-MoS2TEM figure；
Fig. 5 is AC-MoS in the embodiment of the present invention 12Repeat the curve map of ammonia nitrogen degradation rate after 1-7 time.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the accompanying drawings to the concrete reality of the present invention
The mode of applying is described in detail.The example of these preferred embodiments is illustrated in the accompanying drawings.Shown in accompanying drawing and according to
What the embodiments of the present invention of Description of Drawings were merely exemplary, and the present invention is not limited to these embodiments.
Here, also, it should be noted that in order to avoid having obscured the present invention because of unnecessary details, in the accompanying drawings only
The structure and/or process step closely related with scheme of the invention is shown, and is eliminated little with relation of the present invention
Other details.
Embodiments provide a kind of molybdenum sulfide composite reactive Carbon Materials photocatalysis under near infrared light illumination condition
Purposes in degradation of ammonia nitrogen.
Further, the molybdenum sulfide composite reactive Carbon Materials include activated carbon and 1wt%～10wt% molybdenum sulfide particles,
And the molybdenum sulfide is distributed in the activated carbon surface.
Further, the specific surface area of the molybdenum sulfide composite reactive Carbon Materials is 12-16m2/g。
Further, the particle diameter of the molybdenum sulfide composite reactive Carbon Materials is 4.0-5.6nm, and adjacent molybdenum sulfide interlamellar spacing is
0.54-0.7nm。
More preferred, the ammonia nitrogen includes NH3And/or NH4 +。
Further, the range of wavelengths lambda of the near infrared light is 780nm～2500nm.
A kind of ammonia nitrogen purification method is embodiments provided, it includes：Molybdenum sulfide composite reactive Carbon Materials are added
Liquid-phase system containing ammonia nitrogen, and with liquid-phase system described near infrared light illumination, make the ammonia nitrogen be N by photocatalytic degradation2With
H2O。
Further, the molybdenum sulfide composite reactive Carbon Materials and the mass ratio of ammonia nitrogen are 100mg:5～50mg.
In one more preferred embodiment, a kind of ammonia nitrogen purification method is specifically included：Liquid phase containing ammonia nitrogen is treated
Test sample product mix with molybdenum sulfide composite reactive Carbon Materials inserts in lucifuge reactor, and in the illumination window of the lucifuge reactor
Place arranges the optical filter that can only make that near infrared light passes through, and irradiates the lucifuge reactor with light source afterwards so as in ammonia nitrogen quilt
Photocatalytic degradation is N2And H2O。
In one more preferred embodiment, a kind of ammonia nitrogen purification method is specifically included：
(1) Photoreactor and optical filter are provided, to ensure to only have near infrared radiation to enter Photoreactor；
(2) testing sample and molybdenum sulfide composite reactive Carbon Materials are added in the Photoreactor in step (1), optical filtering is covered
Piece, then illumination under light source is placed in, measure light absorption value of the testing sample described in different time sections in visible light wave range；
(3) according to formula：Ammonia nitrogen degradation rate=(1-Ci/C0) × 100%=(1-Ai/A0) × 100% calculates ammonia nitrogen
Degradation rate.
Further, light absorption value of the testing sample at 554nm is measured.
Further, the molybdenum sulfide composite activated carbon repeats after catalytic degradation ammonia nitrogen 5-10 time, and the degradation rate of ammonia nitrogen is still>
90%.
In one more preferred embodiment, a kind of ammonia nitrogen purification method is specifically included：
(1) Photoreactor and optical filter are provided, to ensure to only have near infrared radiation to enter Photoreactor；
(2) testing sample and molybdenum sulfide composite activated carbon are added in the Photoreactor in step (1), optical filter is covered,
Illumination under light source is placed in again, measures light absorption value of the testing sample described in different time sections in visible light wave range；
(3) according to formula：Ammonia nitrogen degradation rate=(1-Ci/C0) × 100%=(1-Ai/A0) × 100% calculates ammonia nitrogen
Degradation rate.
Further, light absorption value of the testing sample at 554nm is measured.
Further, the molybdenum sulfide composite activated carbon repeats after catalytic degradation ammonia nitrogen 5-10 time, and the degradation rate of ammonia nitrogen is still>
85.4%.
The technology of the present invention is further explained below in conjunction with drawings and Examples.
Embodiment 1
(1)MoS2Preparation：Take 1.21g Na2MoO4·2H2O (0.005mol), 1.60g CS (NH2)2(0.020mol)
In volume in the beaker of 100mL, stirring until all dissolvings, in then proceeding to polytetrafluoroethylene (PTFE) inner sleeve, addition go from
Sub- water makes solid fully dissolve and inner sleeve is placed in stainless steel outer sleeve cylinder to the 80% of cumulative volume, sealing, is heated to 200 DEG C,
Reaction 24 hours.Then sample is cooled down at room temperature, is washed with deionized, solable matter is removed.The black for obtaining
Solid is dried 6h, the MoS of system in 40 DEG C of baking ovens2Semi-conducting material.MoS2Unit cell is formed according to hexagonal symmetry stacking
, belong toSpace groupAccording to symmetry, MoS2Vibration mode with 4 Raman actives:E1g,A1g。
With reference to Fig. 3, positioned at 385cm-1And 408cm-1The Raman peaks at place are respectively belonging toAnd A1gVibration, this further demonstrates that made
Standby sample is MoS2.It is the TEM figures of molybdenum sulfide referring to Fig. 4 a.
(2)AC-MoS2Preparation：Weigh MoS2The activated carbon ultrasonic disperse of the 5% of quality is in 10ml deionized waters.Take
1.21gNaMoO4·2H2O, 1.56g (NH2)2CS, in volume in the beaker of 100ml, stirring, will be upper up to all dissolvings
Two solution mixing are stated, is stirred 1 hour, in then proceeding to polytetrafluoroethylene (PTFE) inner sleeve, add deionized water to cumulative volume
80%, solid is fully dissolved and inner sleeve is placed in stainless steel outer sleeve cylinder, seal, 200 DEG C are heated to, react 24 hours.So
Sample is cooled down at room temperature afterwards, is washed with deionized, solable matter is removed.The black solid for obtaining is in 40 DEG C of baking ovens
In be dried 6h, be obtained AC-MoS2Composite.It is AC-MoS referring to Fig. 4 c and Fig. 4 d2TEM figure.
(3) photocatalysis experiment：The wall of cup of one 100ml beaker is encased with masking foil, to avoid ultraviolet light and visible ray
Into reaction system, λ is used>780nm cut-off type optical filters are covered on beaker mouth, to ensure to only have near infrared radiation to enter light
Reactor, by 300W ultraviolet-visible light lamps reactor top is placed in.Certain density ammonia nitrogen solution is added in beaker, is used
NaHCO3-Na2CO3(0.1mol/L) cushioning liquid adjusts pH value, and a certain amount of catalyst is added in beaker, under being placed in light source,
Magnetic stirrer, per the absorbance for determining remaining ammonia nitrogen solution every other hour.Take 1ml ammonia nitrogen solutions, plus 1.5ml Na Shi examinations
Agent, 1ml potassium sodium tartrate solutions are diluted to 50ml, and with T1901 ultraviolet-uisible spectrophotometers the absorbance at 388nm is determined,
The degradation rate of ammonia nitrogen is calculated with this.
Ammonia nitrogen degradation rate=(1-Ci/C0) × 100%=(1-Ai/A0) × 100%
In formula, C0For the initial concentration of ammonia nitrogen, A0For the absorbance of initial soln, CiFor the concentration of remaining ammonia nitrogen, AiIt is surplus
The absorbance of remaining ammonia nitrogen.
(4) catalyst stability：The stability of hybrid catalyst is evaluated by multiple circulation experiment.AC-MoS2Catalysis
The degradation rate of agent continuous 7 catalytic degradation ammonia nitrogens under near infrared radiation.Each time Therapy lasted 8h, ties in degraded each time
Shu Hou, by centrifugation, deionized water washing catalyst is obtained, and is then further continued for recycling the catalyst.Referring to Fig. 5 institutes
Show, in AC-MoS2After the 7 circulation degradeds of catalyst photocatalytic degradation ammonia nitrogen, ammonia nitrogen removal frank is still more than 90%.
The present invention change molybdenum composite activated carbon catalytic degradation ammonia nitrogen method, using near infrared light light by ammonia nitrogen degradation be N2
And H2O, without the need for adding unnecessary oxidant, so as to reduce cost.
It should be appreciated that above-described embodiment technology design only to illustrate the invention and feature, its object is to allow and are familiar with this
The personage of item technology will appreciate that present disclosure and implement according to this, can not be limited the scope of the invention with this.It is all
The equivalence changes made according to spirit of the invention or modification, all should be included within the scope of the present invention.
Claims (9)
1. purposes of the molybdenum sulfide composite activated carbon in photocatalytic degradation ammonia nitrogen under near infrared light illumination condition.
2. purposes as claimed in claim 1, it is characterised in that：The molybdenum sulfide composite reactive Carbon Materials include activated carbon and
1wt%～10wt% molybdenum sulfide particles, the molybdenum sulfide is distributed in the activated carbon surface；And/or, the molybdenum sulfide is compound to live
Property Carbon Materials specific surface area be 12-16m2/g；And/or, the particle diameter of the molybdenum sulfide composite reactive Carbon Materials is 4.0-
5.6nm, adjacent molybdenum sulfide interlamellar spacing is 0.54-0.7nm.
3. purposes as claimed in claim 1, it is characterised in that：The ammonia nitrogen includes NH3And/or NH4 +。
4. purposes as claimed in claim 1, it is characterised in that：The range of wavelengths lambda of the near infrared light be 780nm～
2500nm。
5. a kind of ammonia nitrogen purification method, it is characterised in that include：Molybdenum sulfide composite activated carbon is added into the liquid phase body containing ammonia nitrogen
System, and with liquid-phase system described near infrared light illumination, make the ammonia nitrogen be N by photocatalytic degradation2And H2O。
6. ammonia nitrogen purification method as claimed in claim 5, it is characterised in that：The molybdenum sulfide composite reactive Carbon Materials include living
Property charcoal and 1wt%～10wt% molybdenum sulfide particles, the molybdenum sulfide is distributed in the activated carbon surface；And/or, the molybdenum sulfide
The specific surface area of composite reactive Carbon Materials is 12-16m2/g；And/or, the particle diameter of the molybdenum sulfide composite reactive Carbon Materials is
4.0-5.6nm, adjacent molybdenum sulfide interlamellar spacing is 0.54-0.7nm.
7. ammonia nitrogen purification method as claimed in claim 5, it is characterised in that：The ammonia nitrogen includes NH3And/or NH4 +；And/or,
The molybdenum sulfide composite reactive Carbon Materials are 100mg with the mass ratio of ammonia nitrogen:5～50mg.
8. ammonia nitrogen purification method as claimed in claim 5, it is characterised in that：The range of wavelengths lambda of the near infrared light is 780nm
～2500nm.
9. ammonia nitrogen purification method as claimed in claim 5, it is characterised in that include：By the liquid phase testing sample containing ammonia nitrogen with
The mixing of molybdenum sulfide composite activated carbon is inserted in lucifuge reactor, and is arranged at the illumination window of the lucifuge reactor and only can be made
The optical filter that near infrared light passes through, irradiates the lucifuge reactor with light source afterwards so as in ammonia nitrogen be by photocatalytic degradation
N2And H2O。
Priority Applications (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2007078555A1 (en) * | 2005-12-21 | 2007-07-12 | Milliken & Company | Substrate having photocatalytic and activated carbon constituents and process for producing |
| CN105642364A (en) * | 2016-01-22 | 2016-06-08 | 济南大学 | Compound photocatalyst and preparing method and application thereof |
| CN105664976A (en) * | 2016-01-13 | 2016-06-15 | 三峡大学 | Supported two-dimensional layered molybdenum sulfide composite material and preparation method and application thereof |
| CN105948124A (en) * | 2016-04-22 | 2016-09-21 | 中国科学院高能物理研究所 | Nano-molybdenum sulfide antibacterial material and synthetic method thereof and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2007078555A1 (en) * | 2005-12-21 | 2007-07-12 | Milliken & Company | Substrate having photocatalytic and activated carbon constituents and process for producing |
| CN105664976A (en) * | 2016-01-13 | 2016-06-15 | 三峡大学 | Supported two-dimensional layered molybdenum sulfide composite material and preparation method and application thereof |
| CN105642364A (en) * | 2016-01-22 | 2016-06-08 | 济南大学 | Compound photocatalyst and preparing method and application thereof |
| CN105948124A (en) * | 2016-04-22 | 2016-09-21 | 中国科学院高能物理研究所 | Nano-molybdenum sulfide antibacterial material and synthetic method thereof and application thereof |
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| CN111760550A (en) * | 2020-06-24 | 2020-10-13 | 生态环境部南京环境科学研究所 | Device and method for preparing porous active biochar adsorbing material |
| CN111760550B (en) * | 2020-06-24 | 2022-04-08 | 生态环境部南京环境科学研究所 | Device and method for preparing porous active biochar adsorbing material |
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