CN106861735A - A kind of preparation method of the compound waltherite photochemical catalyst of cobalt carbonate - Google Patents
A kind of preparation method of the compound waltherite photochemical catalyst of cobalt carbonate Download PDFInfo
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- CN106861735A CN106861735A CN201710204659.2A CN201710204659A CN106861735A CN 106861735 A CN106861735 A CN 106861735A CN 201710204659 A CN201710204659 A CN 201710204659A CN 106861735 A CN106861735 A CN 106861735A
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- Prior art keywords
- cobalt
- carbonate
- waltherite
- cobalt carbonate
- colloid
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Links
- 229910021446 cobalt carbonate Inorganic materials 0.000 title claims abstract description 43
- ZOTKGJBKKKVBJZ-UHFFFAOYSA-L cobalt(2+);carbonate Chemical compound [Co+2].[O-]C([O-])=O ZOTKGJBKKKVBJZ-UHFFFAOYSA-L 0.000 title claims abstract description 43
- 239000003054 catalyst Substances 0.000 title claims abstract description 23
- 150000001875 compounds Chemical class 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 34
- 239000000084 colloidal system Substances 0.000 claims abstract description 24
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical class [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims abstract description 18
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 12
- 238000005406 washing Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 6
- 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 6
- 150000002500 ions Chemical class 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000002105 nanoparticle Substances 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 239000008367 deionised water Substances 0.000 claims abstract description 5
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 5
- 238000004821 distillation Methods 0.000 claims abstract 2
- 238000003756 stirring Methods 0.000 claims description 5
- ZJRWDIJRKKXMNW-UHFFFAOYSA-N carbonic acid;cobalt Chemical compound [Co].OC(O)=O ZJRWDIJRKKXMNW-UHFFFAOYSA-N 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 238000004042 decolorization Methods 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001699 photocatalysis Effects 0.000 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 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229960000907 methylthioninium chloride Drugs 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- STZCRXQWRGQSJD-UHFFFAOYSA-M sodium;4-[[4-(dimethylamino)phenyl]diazenyl]benzenesulfonate Chemical compound [Na+].C1=CC(N(C)C)=CC=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-UHFFFAOYSA-M 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/20—Carbon compounds
- B01J27/232—Carbonates
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
The present invention discloses a kind of preparation method of the compound waltherite photochemical catalyst of cobalt carbonate, comprises the following steps that：12~16mmol cobalt nitrates are weighed, the cobalt nitrate solution of 12mmol/L is configured to, 6.6~8mmol sodium carbonate is weighed, the sodium carbonate liquor of 16mmol/L is configured to；Both the above solution is mixed under 350~400 revs/min of rotating speed, colloid substance is formed, 3~4h is persistently stirred, sodium carbonate and cobalt nitrate react in whipping process, generate cobalt carbonate colloid；Cobalt carbonate colloid is placed in pellicle bag, with distillation water washing 3~4 times, get rid of dissociated ion, the cobalt carbonate colloid is added in the bismuth nitrate solution that 60~80mL concentration is 0.1~0.3mol/L again, is soaked 6~10 days, waltherite nano particle is formed on cobalt carbonate particle surface, separation of solid and liquid, deionized water washing solid 2~3 times, 75~105 DEG C of drying are obtained a kind of compound waltherite photochemical catalyst of cobalt carbonate.The method is to form catalyst on cobalt carbonate surface, and catalyst and carrier are combined closely.
Description
Technical field
The present invention relates to a kind of preparation method of the compound waltherite photochemical catalyst of cobalt carbonate, belong in environmental protection at sewage
Reason technical field.
Background technology
Traditional method for treating water efficiency is low, high cost, there are secondary pollution problems, and waste water control always cannot be well
Solution.The development and application of nanometer technology are likely to thoroughly solve this problem.Start within 1972 to find TiO2Oxidation activity
Higher, chemical stability is good, harmless to the human body, and low cost is pollution-free, has a wide range of application, thus is most paid attention to, but TiO2
Larger (such as anatase TiO of energy gap2Energy gap Eg=3.2eV), be only capable of absorb ultraviolet region (wavelength is less than
Light 387nm), the utilization ratio to solar energy is relatively low.
In contaminant degradation and production of energy field, conductor photocatalysis are one of most promising methods.Work as energy
Amount will produce dividing for electron-hole pair when being more than or equal to the photon irradiation of semiconductor energy gap in photocatalyst surface
From this is the initial basic step of light-catalyzed reaction.In order to find efficient photochemical catalyst, numerous studies work is all concentrated on
Study in the influence factor of photocatalytic activity., due to the limitation of itself characteristic, in terms of photocatalytic degradation, performance is also for cobalt carbonate
Have much room for improvement.
The content of the invention
The purpose of the present invention is to solve the shortcomings of the prior art, propose a kind of compound waltherite photochemical catalyst of cobalt carbonate
Preparation method, the method is to form catalyst in carrier surface, and catalyst and carrier are combined closely.
The technical solution adopted by the present invention is to use following steps：
1) 12~16mmol cobalt nitrates are weighed, the cobalt nitrate solution of 12mmol/L is configured to, 6.6~8mmol carbonic acid is weighed
Sodium, is configured to the sodium carbonate liquor of 16mmol/L；
2) both the above solution is mixed under 350~400 revs/min of rotating speed, forms colloid substance, persistently stir 3
~4h, sodium carbonate and cobalt nitrate react in whipping process, generate cobalt carbonate colloid；
3) cobalt carbonate colloid is placed in pellicle bag, with water washing is distilled 3~4 times, gets rid of dissociated ion, then should
Cobalt carbonate colloid is added in the bismuth nitrate solution that 60~80mL concentration is 0.1~0.3mol/L, is soaked 6~10 days, in carbonic acid
Cobalt granule surface forms waltherite nano particle, separation of solid and liquid, deionized water washing solid 2~3 times, 75~105 DEG C of drying, system
Obtain a kind of compound waltherite photochemical catalyst of cobalt carbonate.
The beneficial effects of the invention are as follows：(1) this method forms solubility using the difference of solubility product constant on cobalt carbonate surface
The smaller waltherite particle of product constant.
(2) cobalt carbonate and waltherite are compound, synergy, cobalt carbonate can be made preferably to play catalysis under visible light and made
With and good catalytic effect can be obtained.
Specific embodiment
Embodiment 1
16mmol cobalt nitrates are weighed, the cobalt nitrate solution of 12mmol/L is configured to, 8mmol sodium carbonate is weighed, is configured to
The sodium carbonate liquor of 16mmol/L；Both the above solution is mixed under 350 revs/min of rotating speed, colloid substance is formed, continued
Stirring 3h, sodium carbonate and cobalt nitrate react in whipping process, generate cobalt carbonate colloid；Cobalt carbonate colloid is placed in pellicle bag
It is interior, with water washing is distilled 3 times, dissociated ion is got rid of, then it is 0.1mol/L's that the cobalt carbonate colloid is added into 60mL concentration
In bismuth nitrate solution, soak 8 days, waltherite nano particle, separation of solid and liquid, deionized water washing are formed on cobalt carbonate particle surface
Solid 2 times, 75 DEG C of drying are obtained a kind of compound waltherite photochemical catalyst of cobalt carbonate.
The compound waltherite photochemical catalyst 0.5g of cobalt carbonate that will be obtained is added to the methylene blue that 300mL concentration is 20mg/L
In waste water, under the irradiation of 300w Metal halogen lamps, 30min is reacted, percent of decolourization is 96.9%, and catalyst can be reused after separating.
Embodiment 2
12mmol cobalt nitrates are weighed, the cobalt nitrate solution of 12mmol/L is configured to, 6.6mmol sodium carbonate is weighed, is configured to
The sodium carbonate liquor of 16mmol/L；Both the above solution is mixed under 400 revs/min of rotating speed, colloid substance is formed, continued
Stirring 4h, sodium carbonate and cobalt nitrate react in whipping process, generate cobalt carbonate colloid；Cobalt carbonate colloid is placed in pellicle bag
It is interior, with water washing is distilled 4 times, dissociated ion is got rid of, then it is 0.3mol/L's that the cobalt carbonate colloid is added into 80mL concentration
In bismuth nitrate solution, soak 6 days, waltherite nano particle, separation of solid and liquid, deionized water washing are formed on cobalt carbonate particle surface
Solid 3 times, 105 DEG C of drying are obtained a kind of compound waltherite photochemical catalyst of cobalt carbonate.
The compound waltherite photochemical catalyst 0.5g of cobalt carbonate that will be obtained is added to the gold orange 7 that 300mL concentration is 25mg/L and gives up
In water, under the irradiation of 300w Metal halogen lamps, 30min is reacted, percent of decolourization is 97.1%, and catalyst can be reused after separating.It is right
In identical waste water at identical conditions, the degradation efficiency of pure cobalt carbonate is 63.5%, substantially increases its action effect.
Embodiment 3
14mmol cobalt nitrates are weighed, the cobalt nitrate solution of 12mmol/L is configured to, 7mmol sodium carbonate is weighed, is configured to
The sodium carbonate liquor of 16mmol/L；Both the above solution is mixed under 400 revs/min of rotating speed, colloid substance is formed, continued
Stirring 4h, sodium carbonate and cobalt nitrate react in whipping process, generate cobalt carbonate colloid；Cobalt carbonate colloid is placed in pellicle bag
It is interior, with water washing is distilled 4 times, dissociated ion is got rid of, then it is 0.2mol/L's that the cobalt carbonate colloid is added into 70mL concentration
In bismuth nitrate solution, soak 10 days, waltherite nano particle, separation of solid and liquid, deionization washing are formed on cobalt carbonate particle surface
Wash solid 3 times, 95 DEG C of drying are obtained a kind of compound waltherite photochemical catalyst of cobalt carbonate.
The compound waltherite photochemical catalyst 0.5g of cobalt carbonate that will be obtained is added to the rose red b that 300mL concentration is 25mg/L
In waste water, under the irradiation of 300w Metal halogen lamps, 30min is reacted, percent of decolourization is 98.2%, and catalyst can be reused after separating.
Claims (1)
1. a kind of cobalt carbonate is combined the preparation method of waltherite photochemical catalyst, it is characterized in that in turn including the following steps：
1) 12~16mmol cobalt nitrates are weighed, the cobalt nitrate solution of 12mmol/L is configured to, 6.6~8mmol sodium carbonate is weighed, is matched somebody with somebody
It is set to the sodium carbonate liquor of 16mmol/L；
2) both the above solution is mixed under 350~400 revs/min of rotating speed, forms colloid substance, persistently stir 3~4h,
Sodium carbonate and cobalt nitrate react in whipping process, generate cobalt carbonate colloid；
3) cobalt carbonate colloid is placed in pellicle bag, with distillation water washing 3~4 times, gets rid of dissociated ion, then by the carbonic acid
Cobalt colloid is added in the bismuth nitrate solution that 60~80mL concentration is 0.1~0.3mol/L, is soaked 6~10 days, in cobalt carbonate
Grain surface forms waltherite nano particle, and separation of solid and liquid, deionized water washing solid 2~3 times, 75~105 DEG C of drying are obtained one
Plant the compound waltherite photochemical catalyst of cobalt carbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710204659.2A CN106861735A (en) | 2017-03-30 | 2017-03-30 | A kind of preparation method of the compound waltherite photochemical catalyst of cobalt carbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710204659.2A CN106861735A (en) | 2017-03-30 | 2017-03-30 | A kind of preparation method of the compound waltherite photochemical catalyst of cobalt carbonate |
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| Publication Number | Publication Date |
|---|---|
| CN106861735A true CN106861735A (en) | 2017-06-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710204659.2A Pending CN106861735A (en) | 2017-03-30 | 2017-03-30 | A kind of preparation method of the compound waltherite photochemical catalyst of cobalt carbonate |
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| Country | Link |
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| CN (1) | CN106861735A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084195A (en) * | 2013-02-28 | 2013-05-08 | 重庆工商大学 | Preparation method of (BiO)2CO3 nanosheet photocatalyst |
| CN104445444A (en) * | 2014-12-17 | 2015-03-25 | 桂林理工大学 | Preparation method of hollow superstructure CoCO3 microspheres composed of tetrahedral particles and having exposed surfaces |
| CN105126888A (en) * | 2015-10-09 | 2015-12-09 | 重庆文理学院 | Gold-supported bismuth subcarbonate material for photocatalysis and preparation method |
| WO2016092620A1 (en) * | 2014-12-08 | 2016-06-16 | 三菱重工業株式会社 | Water treatment apparatus |
| CN106000390A (en) * | 2016-06-02 | 2016-10-12 | 哈尔滨工业大学 | Method for preparation of Bi2O3/BiTaO4 composite photocatalyst by molten salt technique |
-
2017
- 2017-03-30 CN CN201710204659.2A patent/CN106861735A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084195A (en) * | 2013-02-28 | 2013-05-08 | 重庆工商大学 | Preparation method of (BiO)2CO3 nanosheet photocatalyst |
| WO2016092620A1 (en) * | 2014-12-08 | 2016-06-16 | 三菱重工業株式会社 | Water treatment apparatus |
| CN104445444A (en) * | 2014-12-17 | 2015-03-25 | 桂林理工大学 | Preparation method of hollow superstructure CoCO3 microspheres composed of tetrahedral particles and having exposed surfaces |
| CN105126888A (en) * | 2015-10-09 | 2015-12-09 | 重庆文理学院 | Gold-supported bismuth subcarbonate material for photocatalysis and preparation method |
| CN106000390A (en) * | 2016-06-02 | 2016-10-12 | 哈尔滨工业大学 | Method for preparation of Bi2O3/BiTaO4 composite photocatalyst by molten salt technique |
Non-Patent Citations (2)
| Title |
|---|
| 张蕾著，: "《烟气脱硫脱硝技术及催化剂的研究进展》", 31 July 2016, 中国矿业大学出版社 * |
| 龚兴建等，: ""纳米抗菌材料的研究进展及其在纺织上的应用"", 《《第四届功能性纺织品及纳米技术应用研讨会》论文集》 * |
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