CN109651281A - A kind of melamine bismuth complex raw powder's production technology and its application - Google Patents
A kind of melamine bismuth complex raw powder's production technology and its application Download PDFInfo
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- CN109651281A CN109651281A CN201811555320.8A CN201811555320A CN109651281A CN 109651281 A CN109651281 A CN 109651281A CN 201811555320 A CN201811555320 A CN 201811555320A CN 109651281 A CN109651281 A CN 109651281A
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- melamine
- bismuth
- powder
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- sewage
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- 239000000843 powder Substances 0.000 title claims abstract description 47
- YKBCZKWRKGCPEN-UHFFFAOYSA-N N1=C(N)N=C(N)N=C1N.[Bi] Chemical compound N1=C(N)N=C(N)N=C1N.[Bi] YKBCZKWRKGCPEN-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 28
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000002360 preparation method Methods 0.000 claims abstract description 17
- 239000010865 sewage Substances 0.000 claims abstract description 17
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000010668 complexation reaction Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- 238000004090 dissolution Methods 0.000 claims abstract description 6
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 13
- 239000000975 dye Substances 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 claims description 6
- 229940043267 rhodamine b Drugs 0.000 claims description 6
- 238000013033 photocatalytic degradation reaction Methods 0.000 claims description 5
- 239000003403 water pollutant Substances 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 229910052797 bismuth Inorganic materials 0.000 claims description 3
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 claims description 2
- 229940012189 methyl orange Drugs 0.000 claims description 2
- 229960000907 methylthioninium chloride Drugs 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 claims 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 4
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 3
- 239000011365 complex material Substances 0.000 abstract description 2
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 239000011651 chromium Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000003446 ligand Substances 0.000 description 2
- -1 triazines nitrogen heterocyclic ring organic compound Chemical class 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 150000004696 coordination complex Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000445 field-emission scanning electron microscopy Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- CXKWCBBOMKCUKX-UHFFFAOYSA-M methylene blue Chemical compound [Cl-].C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 CXKWCBBOMKCUKX-UHFFFAOYSA-M 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/54—Three nitrogen atoms
- C07D251/56—Preparation of melamine
-
- 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
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/18—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms
- B01J31/1805—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms the ligands containing nitrogen
- B01J31/181—Cyclic ligands, including e.g. non-condensed polycyclic ligands, comprising at least one complexing nitrogen atom as ring member, e.g. pyridine
- B01J31/1815—Cyclic ligands, including e.g. non-condensed polycyclic ligands, comprising at least one complexing nitrogen atom as ring member, e.g. pyridine with more than one complexing nitrogen atom, e.g. bipyridyl, 2-aminopyridine
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5272—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using specific organic precipitants
-
- 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
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/50—Complexes comprising metals of Group V (VA or VB) as the central metal
- B01J2531/54—Bismuth
-
- 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
- C02F2101/20—Heavy metals or heavy metal 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- 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
- C02F2101/40—Organic compounds containing sulfur
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Removal Of Specific Substances (AREA)
Abstract
A kind of melamine bismuth complex raw powder's production technology and its application are related to complex material preparation and technical field of sewage.First by (Bi (NO3)3·5H2O it) is dissolved in deionized water and is configured to aqueous bismuth nitrate solution；Then at room temperature, by melamine (C3N3(NH2)3) be added into aqueous bismuth nitrate solution, it can be obtained melamine bismuth cooperation powder after ultrasonic dissolution and complexation reaction.The present invention can obtain such as rodlike, band-like, sheet and plate-like melamine bismuth complex using different amounts of melamine, to realize the controllable preparation of variform melamine bismuth cooperation powder.The melamine bismuth cooperation powder of preparation have well can the melamine bismuth of absorbing properties and heavy metal paved set ability cooperate powder, each pollutant in aqueous systems can be effectively removed, it is expected to as sewage treatment new material.
Description
Technical field
The present invention relates to complex material preparation and technical field of sewage, are specifically related to a kind of melamine bismuth
Complex raw powder's production technology and its application.
Background technique
Melamine (C3N6H6, L) and it is a kind of triazines nitrogen heterocyclic ring organic compound, it is pure white monoclinic prism body, is in
Alkalescent (pKb=8), can form melamine salt in an acidic solution.Single C3N6H6Molecule is by a carbon nitrogen aromatic rings and three
A amino composition.In relation to melamine (L) and bivalent metal ion (M2+)(M2+It can be Ca2+、Mg2+、Zn2+、Cu2+、Ni2+) formed
Melamine metal complex ML2(OH)2It studies and reports and is more.
In general, aqueous bismuth nitrate solution is in stronger acidity, and melamine alkalescent, the two can occur acid-base neutralization and
Complexation reaction provides new idea and method to obtain melamine bismuth complex.The present invention exactly with melamine be with
Body, at normal temperature by with Bi3+Complexation reaction occurs, melamine bismuth cooperation powder has successfully been obtained, it is expected to be used as at sewage
Reason uses new material.
Summary of the invention
The present invention provides a kind of melamine for having the shortcoming prepared in the presence of melamine metal complex
Amine bismuth complex raw powder's production technology and its application.
To achieve the goals above, the technical scheme adopted by the invention is as follows: a kind of melamine bismuth cooperation powder
Preparation method, steps are as follows: first by (Bi (NO3)3·5H2O it) is dissolved in deionized water and is configured to aqueous bismuth nitrate solution；Then exist
At room temperature, by melamine (C3N3(NH2)3) be added into aqueous bismuth nitrate solution, it can be obtained after ultrasonic dissolution and complexation reaction
It obtains melamine bismuth and cooperates powder.
As the optimal technical scheme of preparation method of the present invention, the concentration of the aqueous bismuth nitrate solution is 5~15g/L, often
The additive amount of melamine is 1~30g in 1L aqueous bismuth nitrate solution.The temperature of the complexation reaction is room temperature, reaction time 2
~10min.
The present invention also provides a kind of applications of melamine bismuth cooperation powder, and melamine bismuth cooperation powder is thrown
It is put into containing Cr2O7 2-Or Cu2+Sewage in, pass through complex-precipitation reaction and remove dirty water pollutant.Alternatively, by melamine bismuth
Cooperate powder to launch into the sewage containing organic dyestuff, dirty water pollutant is removed by visible light photocatalytic degradation.There is engine dyeing
Material is rhodamine B, methylene blue and methyl orange.The treatment temperature that visible light photocatalytic degradation removes organic dyestuff in sewage is room
Temperature, it is seen that radiant is common sunlight.
As the optimal technical scheme of melamine bismuth complex powder application of the present invention, the melamine bismuth of dispensing cooperates
Cr in powder and sewage2O7 2-Or Cu2+Molar ratio be 1~3:1.Alternatively, to 100mL organic dyestuff concentration be 10mg/L
0.2~1g melamine bismuth is launched in sewage cooperates powder.
Compared with prior art, beneficial effects of the present invention are shown:
1), the present invention passes through melamine and Bi using melamine as ligand at normal temperature3+Complexation reaction occurs successfully to obtain
Melamine bismuth cooperation powder was obtained, meanwhile, such as rodlike, band-like, sheet can be obtained using different amounts of melamine
With plate-like melamine bismuth complex, thus realize variform melamine bismuth cooperation powder controllable preparation.
2), the present invention using melamine as ligand, have successfully been obtained at normal temperatures and pressures have well can absorbing properties
Cooperate powder with the melamine bismuth of heavy metal paved set ability, each pollutant in aqueous systems can be effectively removed, it is expected to
As sewage treatment new material.
3), preparation method of the invention has the characteristics that easy to operate, low in cost, acquisition product amount is big, cooperates for bismuth
The preparation and application of powder provide new approaches and frontier.
Detailed description of the invention
Fig. 1 is the form and chemical composition for preparing product in embodiment 1 when melamine additive amount is 0.1g；
Fig. 2 is the form and chemical composition for preparing product in embodiment 1 when melamine additive amount is 1g；
Fig. 3 is the form and chemical composition for preparing product in embodiment 1 when melamine additive amount is 1.5g；
Fig. 4 is the form and chemical composition for preparing product in embodiment 1 when melamine additive amount is 3g；
Fig. 5 a is the visible absorption spectrum that melamine bismuth cooperates powder, and Fig. 5 b is melamine bismuth in embodiment 3
Cooperate the photocatalytic degradation curve of organic dyestuff rhodamine B in powder removal sewage.
Specific embodiment
With reference to embodiments with attached drawing to melamine bismuth complex raw powder's production technology of the invention and its application
It makes and being discussed further.Flied emission scanning electron microscopy is respectively adopted in structure, the form performance of the method for the present invention products therefrom
Mirror (FE-SEM, SU8010) and ultraviolet-visible spectrometer (Vb300) are characterized and are analyzed.
Embodiment 1
Melamine bismuth cooperates the preparation of powder, and steps are as follows:
It is divided into four groups of experiments, first by the (Bi (NO of 0.5g in every group of experiment3)3·5H2O) it is dissolved in the deionized water of 100mL
In be configured to aqueous bismuth nitrate solution.
Then, at room temperature, respectively by the melamine (C of 0.1g, 1g, 1.5g, 3g3N3(NH2)3) be added to bismuth nitrate
It, can product after ultrasonic dissolution and complexation reaction 5min in aqueous solution.
Fig. 1~4 are respectively the shape for preparing product in embodiment 1 when melamine additive amount is 0.1g, 1g, 1.5g, 3g
State and chemical composition can obtain such as rodlike (Fig. 1), band-like using different amounts of melamine as seen in Figure 1
The melamine bismuth complex of (Fig. 2), sheet (Fig. 3) and plate-like (Fig. 4) different shape.
The formation of melamine bismuth complex can be regarded as by following two process: firstly, melamine hydrolyzes
Reaction generates L (OH)3；Then, L (OH)3With Bi3+Form BiL3(OH)3, above-mentioned two process can use formula (1) and (2)
It respectively indicates:
Embodiment 2
Melamine bismuth cooperates the mechanism of chromium and copper in powder removing waste water
Weigh melamine bismuth complex dry powder (preparation production when melamine additive amount is 1.5g in embodiment 1 of 0.5g
Object) it is respectively put into certain density Cr2O7 2-And Cu2+(melamine bismuth cooperates Cr in powder and sewage to waste water2O7 2-Or Cu2+
Molar ratio be 1:1 or more, it is appropriate excessive best) in, can be removed in water body by real-time coordination and precipitation reaction
Cr2O7 2-And Cu2+Etc. heavy metal ion.Complex removes Cr2O7 2-And Cu2+Mechanism such as formula (3) and (4) shown in.
Embodiment 3
Melamine bismuth cooperates powder to remove organic dyestuff in wastewater performance
Firstly, can detecte to obtain the visible absorption of melamine bismuth cooperation powder by ultraviolet-visible spectrometer
Spectrum, as shown in Figure 5 a, it can be seen that visible-UV absorption maximum wavelength of product is about 480nm (see illustration).
It then, is 10mg/L with concentration, the rhodamine B aqueous solution that volume is 100mL is that target organic contamination source is object,
It is separately added into the cooperation powder of 0.2g, 0.4g, ultrasonic disperse is protected from light processing after sixty minutes at room temperature, then is put under sunlight
Irradiation 100 minutes, rhodamine B concentration (C in systemt) as shown in Figure 5 b with the relationship of irradiation time (t).With catalyst feelings are not added
Comparison can be seen that the extension with sunlight irradiation time under condition, and the amount of rhodamine B is gradually decreasing in system, and explanation is matched
Closing object has good visible light catalytic performance.And in system for handling be added 0.4g cooperation powder treatment effect be better than plus
Enter 0.2g cooperation powder, addition 0.4g cooperation powder irradiates 100 minutes under sunlight can completely remove Luo Dan substantially
Bright B.
Embodiment 4
Melamine bismuth cooperates the preparation of powder, and steps are as follows:
First by the (Bi (NO of 1g3)3·5H2O it) is dissolved in the deionized water of 100mL and is configured to aqueous bismuth nitrate solution；It connects
, at room temperature, respectively by the melamine (C of 1g3N3(NH2)3) be added into aqueous bismuth nitrate solution, through ultrasonic dissolution and match
Position reaction 2min after can product, product be melamine bismuth cooperation powder.
Embodiment 5
Melamine bismuth cooperates the preparation of powder, and steps are as follows:
First by the (Bi (NO of 1.5g3)3·5H2O it) is dissolved in the deionized water of 100mL and is configured to aqueous bismuth nitrate solution；It connects
, at room temperature, respectively by the melamine (C of 3g3N3(NH2)3) be added into aqueous bismuth nitrate solution, through ultrasonic dissolution and match
Position reaction 10min after can product, product be melamine bismuth cooperation powder.
The above content is just an example and description of the concept of the present invention, affiliated those skilled in the art
It makes various modifications or additions to the described embodiments or is substituted in a similar manner, without departing from invention
Design or beyond the scope defined by this claim, be within the scope of protection of the invention.
Claims (10)
1. a kind of melamine bismuth complex raw powder's production technology, which is characterized in that steps are as follows: first by (Bi (NO3)3·
5H2O it) is dissolved in deionized water and is configured to aqueous bismuth nitrate solution；Then at room temperature, by melamine (C3N3(NH2)3) be added to nitre
In sour bismuth aqueous solution, melamine bismuth cooperation powder can be obtained after ultrasonic dissolution and complexation reaction.
2. preparation method as described in claim 1, which is characterized in that the concentration of the aqueous bismuth nitrate solution is 5~15g/L,
The additive amount of melamine is 1~30g in every 1L aqueous bismuth nitrate solution.
3. preparation method as described in claim 1, which is characterized in that the temperature of the complexation reaction is room temperature, reaction time
For 2~10min.
4. a kind of melamine bismuth such as the method preparation of any one of claims 1 to 3 cooperates the application of powder, feature
It is, melamine bismuth cooperation powder is launched to containing Cr2O7 2-Or Cu2+Sewage in, go to decontaminate by complex-precipitation reaction
Water pollutant.
5. application as claimed in claim 4, which is characterized in that in the melamine bismuth cooperation powder and sewage of dispensing
Cr2O7 2-Or Cu2+Molar ratio be 1~3:1.
6. a kind of melamine bismuth such as the method preparation of any one of claims 1 to 3 cooperates the application of powder, feature
It is, melamine bismuth cooperation powder is launched into the sewage containing organic dyestuff, goes to decontaminate by visible light photocatalytic degradation
Water pollutant.
7. application as claimed in claim 6, which is characterized in that thrown into the sewage that 100mL organic dyestuff concentration is 10mg/L
Put 0.2~1g melamine bismuth cooperation powder.
8. application as claimed in claim 6, which is characterized in that visible light photocatalytic degradation removes the processing of organic dyestuff in sewage
Temperature is room temperature.
9. application as claimed in claim 6, which is characterized in that visible light source is common sunlight.
10. application as claimed in claim 6, which is characterized in that organic dyestuff is rhodamine B, methylene blue and methyl orange.
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| CN107626335A (en) * | 2017-09-21 | 2018-01-26 | 浙江工商大学 | A kind of bismuth system/carbonitride composite catalyst and its preparation method and application |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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