CN108126760A - The novel photocatalyst and preparation method of a kind of degradable dyestuff and its organic pollution - Google Patents
The novel photocatalyst and preparation method of a kind of degradable dyestuff and its organic pollution Download PDFInfo
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- CN108126760A CN108126760A CN201810024687.0A CN201810024687A CN108126760A CN 108126760 A CN108126760 A CN 108126760A CN 201810024687 A CN201810024687 A CN 201810024687A CN 108126760 A CN108126760 A CN 108126760A
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- novel photocatalyst
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- degradable
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- 239000000975 dye Substances 0.000 title claims abstract description 54
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 150000000178 1,2,4-triazoles Chemical class 0.000 claims abstract description 16
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 11
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 11
- QFSKIUZTIHBWFR-UHFFFAOYSA-N chromium;hydrate Chemical compound O.[Cr] QFSKIUZTIHBWFR-UHFFFAOYSA-N 0.000 claims abstract description 5
- AOPCKOPZYFFEDA-UHFFFAOYSA-N nickel(2+);dinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O AOPCKOPZYFFEDA-UHFFFAOYSA-N 0.000 claims abstract description 5
- OQUOOEBLAKQCOP-UHFFFAOYSA-N nitric acid;hexahydrate Chemical compound O.O.O.O.O.O.O[N+]([O-])=O OQUOOEBLAKQCOP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 4
- 239000004615 ingredient Substances 0.000 claims abstract description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 41
- 238000003756 stirring Methods 0.000 claims description 13
- 238000005485 electric heating Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 235000019441 ethanol Nutrition 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 10
- 238000007664 blowing Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 6
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- NSPMIYGKQJPBQR-UHFFFAOYSA-N 4H-1,2,4-triazole Chemical compound C=1N=CNN=1 NSPMIYGKQJPBQR-UHFFFAOYSA-N 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 abstract description 31
- 238000006731 degradation reaction Methods 0.000 description 40
- 230000015556 catabolic process Effects 0.000 description 38
- HKJKONMZMPUGHJ-UHFFFAOYSA-N 4-amino-5-hydroxy-3-[(4-nitrophenyl)diazenyl]-6-phenyldiazenylnaphthalene-2,7-disulfonic acid Chemical compound OS(=O)(=O)C1=CC2=CC(S(O)(=O)=O)=C(N=NC=3C=CC=CC=3)C(O)=C2C(N)=C1N=NC1=CC=C([N+]([O-])=O)C=C1 HKJKONMZMPUGHJ-UHFFFAOYSA-N 0.000 description 18
- 230000000694 effects Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(II) nitrate Inorganic materials [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 9
- 230000001699 photocatalysis Effects 0.000 description 9
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt(II) nitrate Inorganic materials [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 description 7
- 238000007146 photocatalysis Methods 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 3
- 230000009514 concussion Effects 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000001782 photodegradation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000003183 carcinogenic agent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000010919 dye waste Substances 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- -1 hydroxyl radical free radical Chemical class 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- DPJRMOMPQZCRJU-UHFFFAOYSA-M thiamine hydrochloride Chemical compound Cl.[Cl-].CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N DPJRMOMPQZCRJU-UHFFFAOYSA-M 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/38—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of titanium, zirconium or hafnium
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/28—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of the platinum group metals, iron group metals or copper
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/26—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24
- B01J31/34—Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups B01J31/02 - B01J31/24 of chromium, molybdenum or tungsten
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- 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
- C02F2101/30—Organic compounds
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Abstract
The present invention relates to a kind of catalyst.Purpose is to provide a kind of novel photocatalyst, which has excellent the disposal efficiency, and the influence of dyestuff and its organic pollution to environment is reduced with amplitude peak.Technical solution is：A kind of novel photocatalyst of degradable dyestuff and its organic pollution, including ingredient be：1:The amphoteric oxide of 1.5 2.5 molar ratios and 1,2,4 triazoles or 1:The nitrate of 1.5 2.5 molar ratios and 1,2,4 triazoles；The amphoteric oxide is titanium dioxide；The nitrate is one kind in Nickelous nitrate hexahydrate, cabaltous nitrate hexahydrate or six nitric hydrate chromium.
Description
Technical field
The present invention relates to a kind of catalyst, the photochemical catalyst of especially degradable dyestuff and its organic pollution.
Background technology
China is DYE PRODUCTION big country, and for various dyestuff annual outputs up to 900,000 tons, dyestuff yield has accounted for Gross World Product
60% or so.Textile printing and dyeing industry is that discharged volume of industrial waste water is big, and intractability is high, becomes current important environomental pollution source.
These discharges influence water quality containing residual dye, threaten public health, some of which azo dyes or their metabolin (such as
Aromatic amine) there is serious toxicity, it is potential carcinogenic substance.Microbial degradation is contradicted strongly due to containing organic dye waste water, it can not
It is converted into toxic or carcinogen with avoiding, becomes very severe environmental problem, threaten human health.
Photocatalytic oxidation is the new technology researched and developed in the latest 20 years, by dyeing waste water within the sufficient reaction time
In oxidation operation for simple inorganic matter, reduce secondary pollution, there is good development prospect.Dye is removed from waste water
Material and other pollutants, now mainly have membrane separation process, add flocculant, electrochemical method, ion exchange, air oxidation process, life
The physics such as object facture and chemical method, but when Wastewater Dyes concentration is minimum, the effect of these methods drastically declines, and has one
A little methods can also generate a large amount of sludge, so as to increase processing cost.The activated carbon of waste water from dyestuff is such as adsorbed, is had to organic dyestuff
There is high adsorption, but cost is larger.
Invention content
It is an object of the invention to overcome the shortcomings of above-mentioned background technology, a kind of novel photocatalyst is provided, the catalysis
Agent has excellent the disposal efficiency, and the influence of dyestuff and its organic pollution to environment is reduced with amplitude peak.
It is a further object to provide the preparation method of above-mentioned catalyst, this method have preparation process it is simple,
It is of low cost, there is good market application foreground.
The technical solution adopted by the present invention is：
A kind of novel photocatalyst of degradable dyestuff and its organic pollution, including ingredient be：
1:The amphoteric oxide of 1.5-2.5 molar ratios and 1,2,4 triazoles or 1:1.5-2.5 the nitrate of molar ratio
With 1,2,4 triazoles；
The amphoteric oxide is titanium dioxide；
The nitrate is one kind in Nickelous nitrate hexahydrate, cabaltous nitrate hexahydrate or six nitric hydrate chromium.
A kind of preparation method of the novel photocatalyst of degradable dyestuff and its organic pollution, carries out as follows：
By the nitrate or amphoteric oxide after weighing, and 1,2,4 triazoles are separately added into suitable absolute ethyl alcohol and stirring
Dissolving；The ethanol solution of the ethanol solution of nitrate or amphoteric oxide is poured into 1,2,4 triazole solution later, in room temperature
Lower stirring to the two is uniformly mixed；Then it is packed into hydrothermal reaction kettle after mixed liquor is sealed, is reacted under 100 DEG C of constant temperature
40-50 hours；It is after cooling that reaction product is 12 hours dry at 80 DEG C, grinding pack.
The stirring is using magnetic force heating stirrer, setting rotating speed 400r/min.
Reaction is using electric heating constant-temperature blowing drying box under the constant temperature.
It is described dry using electric heating constant-temperature blowing drying box.
The beneficial effects of the invention are as follows：
1st, novel photocatalyst of the present invention has good photocatalytic activity in visible-range, can be efficient
Catalytic degradation dyestuff and its organic pollution (degradation efficiency is up to more than 99.55%).
2nd, the novel photocatalyst preparation process is simple, and cost of material is cheap, of low cost (at photocatalysis of the invention
It is 3 yuan/ton to manage waste water from dyestuff cost, and Treatment of Dyeing Wastewater with Activated Carbon cost is 7 yuan/ton).
3rd, the novel photocatalyst is with good stability, environmentally safe, and catalyst can be recycled and be recycled
It uses, is easy to industrialized production, convenient for application.
Description of the drawings
Fig. 1 is C2H3N3–TiO2Influence schematic diagram of the catalyst amount to degradation rate.
Fig. 2 is dyestuff initial concentration dosage to C2H3N3–TiO2The influence schematic diagram of catalyst degradation rate.
Fig. 3 is C2H3N3–TiO2Influence schematic diagram of the pH value to degradation rate.
Fig. 4 is C2H3N3–Ni(NO3)2Influence schematic diagram of the catalyst amount to degradation rate.
Fig. 5 is dyestuff initial concentration dosage to C2H3N3–Ni(NO3)2The influence schematic diagram of catalyst degradation rate.
Fig. 6 is C2H3N3–Ni(NO3)2Influence schematic diagram of the pH value to degradation rate.
Fig. 7 is C2H3N3–Co(NO3)2Influence schematic diagram of the catalyst amount to degradation rate.
Fig. 8 is dyestuff initial concentration dosage to C2H3N3–Co(NO3)2The influence schematic diagram of catalyst degradation rate.
Fig. 9 is C2H3N3–Co(NO3)2Influence schematic diagram of the pH value to degradation rate.
Specific embodiment
It is further illustrated below in conjunction with embodiment shown in the drawings.
Embodiment 1
C2H3N3–TiO2Compound photochemical catalyst
It is 1 that stoichiometric ratio is weighed on electronic balance:The titanium dioxide and 1,2,4 triazoles of 2 (molar ratios) are put respectively
Enter in beaker, then respectively add in the absolute ethyl alcohol and stirring dissolving of 50ml.Later, beaker is placed in ultrasonic cleaner and shaken
To being respectively completely dissolved, then by TiO2Ethanol solution pour into the ethanol solution of 1,2,4 triazoles, be subsequently put on magnetic force and add
On thermal agitation device, rotating speed 400r/min is set, stirring to the two at room temperature is uniformly mixed.By the mixed liquor of the two points four it is bottled enter
In 30ml hydrothermal reaction kettles, screw up with a wrench lid, is put into electric heating constant-temperature blowing drying box, under 100 DEG C of steady temperature
Product after reaction round the clock, is poured on surface plate, is put into electric heating constant-temperature blowing drying box, at 80 DEG C by reaction two after cooling
Lower drying grinds pack after 12 hours.
Fig. 1 is sample C prepared by the present embodiment2H3N3–TiO2The different of organic dyestuff acid blue-black 10b degradation are catalyzed
The influence datagram of degradation rate under agent addition.It can be seen from the figure that the sample photochemical catalyst possesses superior photocatalysis energy
Power, degradation rate of the catalyst in 105min is 99.83%, and the catalytic effect of the catalyst has connect after 30min
Nearly best catalytic effect.
Fig. 2 is sample C prepared by the present embodiment2H3N3–TiO2To the drop under organic dyestuff acid blue-black 10b various concentration
Solution rate influences datagram.It show that the acid blue-black 10b degradation rate of 30mg/L is best from figure, reaches 99.83%, under other concentration
The degradation effect of acid blue-black 10b dye solution is general.
Fig. 3 is sample C prepared by the present embodiment2H3N3–TiO2To organic dyestuff acid blue-black 10b under different solutions pH
Obtained degradation rate datagram obtains acid blue-black 10b dyestuff degradation effect under acid condition under catalyst action from figure
Most preferably 99.83%, degradation effect is bad under alkaline condition；Therefore the C2H3N3–TiO2Light drop should be carried out in acid condition
Solution reaction.
Embodiment 2
C2H3N3-Ni(NO3)2Compound photochemical catalyst
It is 1 that stoichiometric ratio is weighed on electronic balance:The Nickelous nitrate hexahydrate and 1,2,4 triazoles of 2 (molar ratios) point
It is not put into beaker, then respectively adds in the absolute ethyl alcohol and stirring dissolving of 50ml.Later, beaker is placed in ultrasonic cleaner
Concussion then pours into the ethanol solution of Nickelous nitrate hexahydrate in the ethanol solution of 1,2,4 triazoles to being respectively completely dissolved, with
After be placed on magnetic force heating stirrer, set rotating speed 400r/min, at room temperature stirring to both be uniformly mixed.By the mixing of the two
Liquid points four it is bottled enter 30ml hydrothermal reaction kettles in, screw up with a wrench lid, is put into electric heating constant-temperature blowing drying box, at 100 DEG C
Steady temperature under reaction two round the clock, the product after reaction is poured on surface plate after cooling, electric heating constant temperature air blast is put into and does
In dry case, pack is ground after 12 hours dry at 80 DEG C.
Fig. 4 is sample C prepared by the present embodiment2H3N3–Ni(NO3)2The difference of organic dyestuff acid blue-black 10b degradation is urged
The influence datagram of degradation rate under agent addition.It can be seen from the figure that the sample photochemical catalyst possesses good photocatalysis
Ability, dyestuff degradation rate of the catalyst in 120min are 99.76%.
Fig. 5 is sample C prepared by the present embodiment2H3N3–Ni(NO3)2To under organic dyestuff acid blue-black 10b various concentration
Degradation rate influences datagram.It show that the acid blue-black 10b degradation rate of 30mg/L is best from figure, reaches 99.76%, other concentration
The degradation effect of lower acid blue-black 10b dye solution is general.
Fig. 6 is sample C prepared by the present embodiment2H3N3–Ni(NO3)2To organic dyestuff acid blue-black 10b in different solutions pH
Under obtained degradation rate influence datagram, acid blue-black 10b dyestuff is obtained from figure, and degradation effect is most under photochemical catalyst effect
Good is 99.76%, the pH of dye solution photodegradation rate is influenced it is little, only pH value of solution=11 when it is ineffective, therefore
C2H3N3–Ni(NO3)2Catalyst does not allow to carry out light degradation reaction under dye solution pH=11, can be under other pH value of solution
Implement.
Embodiment 3
C2H3N3–Co(NO3)2Compound photochemical catalyst
It is 1 that stoichiometric ratio is weighed on electronic balance:The cabaltous nitrate hexahydrate and 1,2,4 triazoles of 2 (molar ratios) point
It is not put into beaker, then respectively adds in the absolute ethyl alcohol and stirring dissolving of 50ml.Later, beaker is placed in ultrasonic cleaner
Concussion then pours into the ethanol solution of cabaltous nitrate hexahydrate in the ethanol solution of 1,2,4 triazoles to being respectively completely dissolved, with
After be placed on magnetic force heating stirrer, set rotating speed 400r/min, at room temperature stirring to both be uniformly mixed.By the mixing of the two
Liquid points four it is bottled enter 30ml hydrothermal reaction kettles in, screw up with a wrench lid, is put into electric heating constant-temperature blowing drying box, at 100 DEG C
Steady temperature under reaction two round the clock, the product after reaction is poured on surface plate after cooling, electric heating constant temperature air blast is put into and does
In dry case, pack is ground after 12 hours dry at 80 DEG C.
Fig. 7 is sample C prepared by the present embodiment2H3N3–Co(NO3)2The difference of organic dyestuff acid blue-black 10b degradation is urged
The influence datagram of degradation rate under agent addition.It can be seen from the figure that the sample photochemical catalyst possesses good photocatalysis
Ability, 30min degradation rates have just reached more than 95%, and dyestuff degradation rate of the catalyst in 120min is 99.55%.
Fig. 8 is sample C prepared by the present embodiment2H3N3–Co(NO3)2To under organic dyestuff acid blue-black 10b various concentration
Degradation rate influences datagram.It show that the acid blue-black 10b degradation rate of 30mg/L is best from figure, reaches 99.55%, other concentration
The degradation effect of lower acid blue-black 10b dye solution is also preferable.
Fig. 9 is sample C prepared by the present embodiment2H3N3–Co(NO3)2To organic dyestuff acid blue-black 10b in different solutions pH
Under obtained degradation rate influence datagram, acid blue-black 10b dyestuff is obtained from figure, and degradation effect is most under photochemical catalyst effect
Good is 99.55%, the pH of dye solution photodegradation rate is influenced it is little, only pH value of solution=13 when it is ineffective, therefore
C2H3N3–Ni(NO3)2Catalyst does not allow to carry out light degradation reaction under dye solution pH=13, can be under other pH value of solution
Implement.
Embodiment 4
C2H3N3–Cr(NO3)2Compound photochemical catalyst
It is 1 that stoichiometric ratio is weighed on electronic balance:Six nitric hydrate chromium of 2 (molar ratios) and 1,2,4 triazoles point
It is not put into beaker, then respectively adds in the absolute ethyl alcohol and stirring dissolving of 50ml.Later, beaker is placed in ultrasonic cleaner
Concussion then pours into the ethanol solution of six nitric hydrate chromium in the ethanol solution of 1,2,4 triazoles to being respectively completely dissolved, with
After be placed on magnetic force heating stirrer, set rotating speed 400r/min, at room temperature stirring to both be uniformly mixed.By the mixing of the two
Liquid points four it is bottled enter 30ml hydrothermal reaction kettles in, screw up with a wrench lid, is put into electric heating constant-temperature blowing drying box, at 100 DEG C
Steady temperature under reaction two round the clock, the product after reaction is poured on surface plate after cooling, electric heating constant temperature air blast is put into and does
In dry case, pack is ground after 12 hours dry at 80 DEG C.
It investigates factor to photodegradation rate at three aspects such as catalyst charge, dyes concentration and dye solution pH
Influence it is similar to 2 result of embodiment, therefore be not repeated herein.
Conclusion
This series photochemical catalyst can absorb visible ray and electron transition occurs, show good photocatalytic activity, can be used for
The photocatalytic degradation of organic matter and its dyestuff；Under the conditions of existing for photochemical catalyst, when the illumination jetting dissolubility of appropriate wavelength contaminates
During the solution of material, the hydroxyl radical free radical OH and O of superpower activity are further generated with water effect2, with adsorbing in catalyst table
Redox reaction occurs for the dye molecule in face, is degraded to inorganic molecules.Photocatalysis absorbing wavelength red shift, can be normal
Under warm daylight, the organic compounds such as low-cost high-efficiency degradation of dye, the series composite materials have very more surface-actives
Site, diversification structurally and functionally, make its also have in fields such as adsorbing separation, photocatalysis, batteries tempting prospect and
Huge application potential.
Claims (7)
1. the novel photocatalyst of a kind of degradable dyestuff and its organic pollution, including ingredient be：
1:The amphoteric oxide of 1.5-2.5 molar ratios and 1,2,4 triazoles or 1:The nitrate of 1.5-2.5 molar ratios and 1,
2,4 triazoles.
2. the novel photocatalyst of degradable dyestuff according to claim 1 and its organic pollution, it is characterised in that：Institute
Amphoteric oxide is stated as titanium dioxide.
3. the novel photocatalyst of degradable dyestuff according to claim 1 or 2 and its organic pollution, feature exist
In：The nitrate is one kind in Nickelous nitrate hexahydrate, cabaltous nitrate hexahydrate or six nitric hydrate chromium.
4. the preparation method of the novel photocatalyst of degradable dyestuff described in claim 1 and its organic pollution, by as follows
Step carries out：
By the nitrate or amphoteric oxide after weighing, and 1,2,4 triazoles are separately added into suitable absolute ethyl alcohol and stirring dissolving；
The ethanol solution of the ethanol solution of nitrate or amphoteric oxide is poured into 1,2,4 triazole solution later, is stirred at room temperature
It mixes to the two and is uniformly mixed；Then it is packed into hydrothermal reaction kettle after mixed liquor is sealed, reacts 40-50 under 100 DEG C of constant temperature
Hour；It is after cooling that reaction product is 12 hours dry at 80 DEG C, grinding pack.
5. the preparation method of the novel photocatalyst of degradable dyestuff according to claim 4 and its organic pollution,
It is characterized in that the stirring using magnetic force heating stirrer, setting rotating speed 400r/min.
6. the preparation method of the novel photocatalyst of degradable dyestuff according to claim 4 or 5 and its organic pollution,
It is characterized in that reaction is using electric heating constant-temperature blowing drying box under the constant temperature.
7. the preparation method of the novel photocatalyst of degradable dyestuff according to claim 6 and its organic pollution,
It is characterized in that described dry using electric heating constant-temperature blowing drying box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810024687.0A CN108126760B (en) | 2018-01-11 | 2018-01-11 | Novel photocatalyst capable of degrading dye and organic pollutants thereof and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810024687.0A CN108126760B (en) | 2018-01-11 | 2018-01-11 | Novel photocatalyst capable of degrading dye and organic pollutants thereof and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108126760A true CN108126760A (en) | 2018-06-08 |
| CN108126760B CN108126760B (en) | 2020-11-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101890354A (en) * | 2010-07-27 | 2010-11-24 | 北京师范大学 | Method for preparing bismuth ferrite photocatalyst |
| CN102688754A (en) * | 2012-06-11 | 2012-09-26 | 福州大学 | Composite photocatalyst capable of efficiently degrading dye organic pollutant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101890354A (en) * | 2010-07-27 | 2010-11-24 | 北京师范大学 | Method for preparing bismuth ferrite photocatalyst |
| CN102688754A (en) * | 2012-06-11 | 2012-09-26 | 福州大学 | Composite photocatalyst capable of efficiently degrading dye organic pollutant |
Non-Patent Citations (1)
| Title |
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| JAAP G . HAASNOOT等: ""1,2,4-Triazole Complexes, III* Complexes of Transition Metal(II) Nitrates and Fluoroborates"", 《ZEITSCHRIFT FÜR NATURFORSCHUNG B》 * |
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