CN108928855A - A kind of Ca-Ti ore type LaCoO3The preparation method of material - Google Patents
A kind of Ca-Ti ore type LaCoO3The preparation method of material Download PDFInfo
- Publication number
- CN108928855A CN108928855A CN201810825789.2A CN201810825789A CN108928855A CN 108928855 A CN108928855 A CN 108928855A CN 201810825789 A CN201810825789 A CN 201810825789A CN 108928855 A CN108928855 A CN 108928855A
- Authority
- CN
- China
- Prior art keywords
- preparation
- warming
- parts
- conditions
- ore type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 title claims abstract description 17
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000010792 warming Methods 0.000 claims abstract description 16
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910002254 LaCoO3 Inorganic materials 0.000 claims abstract description 8
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 8
- 239000011240 wet gel Substances 0.000 claims abstract description 8
- 229910002422 La(NO3)3·6H2O Inorganic materials 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 239000012153 distilled water Substances 0.000 claims abstract description 6
- 239000012467 final product Substances 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 10
- 239000000243 solution Substances 0.000 abstract description 7
- 239000011259 mixed solution Substances 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000006731 degradation reaction Methods 0.000 abstract description 3
- 239000010936 titanium Substances 0.000 description 9
- 230000001699 photocatalysis Effects 0.000 description 3
- -1 alkali metal cation Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 229910002971 CaTiO3 Inorganic materials 0.000 description 1
- JTCFNJXQEFODHE-UHFFFAOYSA-N [Ca].[Ti] Chemical compound [Ca].[Ti] JTCFNJXQEFODHE-UHFFFAOYSA-N 0.000 description 1
- 230000032900 absorption of visible light Effects 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G51/00—Compounds of cobalt
- C01G51/04—Oxides; Hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/83—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with rare earths or actinides
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/802—Visible light
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/30—Three-dimensional structures
- C01P2002/34—Three-dimensional structures perovskite-type (ABO3)
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention discloses a kind of Ca-Ti ore type LaCoO3The preparation method of material, steps are as follows: by La (NO3)3·6H2O, Co (NO3)2·6H2O and citric acid solid are added distilled water and are configured to mixed solution, 10-20min is stirred under the conditions of 54-58 DEG C is uniformly mixed it, weak aqua ammonia is added dropwise into solution and adjusts pH value to 4.4-4.6, it is placed in 65-75 DEG C of water-bath after obtaining wet gel, it puts it into and obtains xerogel in drying box under the conditions of 105-115 DEG C, then by sample grind into powder, be placed in Muffle furnace and be warming up to 410-430 DEG C of roasting 2.5-3.5h, it is warming up at 840-860 DEG C again and roasts 4-6h, after cooling to obtain the final product.This method is easy, quick, is successfully prepared the good Ca-Ti ore type LaCoO of purity3Material, Degradation Formaldehyde rate is high, can be prepared on a large scale.
Description
Technical field
The present invention relates to a kind of Ca-Ti ore type LaCoO3The preparation method of material.
Background technique
Formaldehyde is one of major pollutants in room air, the method for eliminating formaldehyde have adsorption cleaning, photocatalytic degradation and
The technical methods such as biodegrade.Wherein, low energy consumption because having for Photocatalyst, and reaction condition is mild, can continuous work
The characteristics of, apply the research in air purification field more and more.
Perovskite-type material as novel visible light-responded conductor photocatalysis material, have stable structure, forbidden band compared with
It is narrow, light absorption wavelength range is wide, the advantages that absorption of visible light can be achieved, become hot spot in photocatalysis research field it
One.There are perovskite material good dielectricity and photocatalytic oxidation properties etc. to be confirmed by numerous studies.The calcium titanium of narrow sense
Mine refers to CaTiO3, and the perovskite of broad sense refers to the ABO with perovskite structure type3Type compound, wherein A are more than half
Alkaline-earth metal, rare earth metal or the alkali metal cation of diameter, B are minor radius transition-metal cations.Perovskite is most important
One feature is exactly A, B ionic radius differ greatly but can be stable be present in same structure, and A, B bit element are for choosing
The range selected is wide, so theoretically perovskite is the ideal material that catalysis aspect is studied.
Sol-gel the preparation method has the advantages that not available for many prior synthesizing methods, such as product height is uniform
Property, it is easily aligned into substance and carries out element doping, be particularly suitable for the catalyst that preparation needs accurately to adulterate, required for reaction
The more general prior synthesizing method of temperature is low, and technique conveniently regulating and controlling in synthesis process is easy to repeat.
Summary of the invention
The purpose of the present invention is to provide a kind of Ca-Ti ore type LaCoO3The preparation method of material.
The present invention is realized by following technical solution:
A kind of Ca-Ti ore type LaCoO3The preparation method of material includes the following steps: 10-20 parts of La (NO3)3·6H2O, 10-
20 parts of Co (NO3)2·6H2O and 35-45 parts of citric acid solid is added 85-95 parts of distilled water and is configured to mixed solution, 54-58 DEG C of item
10-20min is stirred under part is uniformly mixed it, and weak aqua ammonia is added dropwise into solution and adjusts pH value to 4.4-4.6, is placed in 65-75 DEG C
After obtaining wet gel in water-bath, puts it into and obtain xerogel in drying box under the conditions of 105-115 DEG C, then sample is ground into
Powder is placed in Muffle furnace, is warming up to 410-430 DEG C of roasting 2.5-3.5h with the heating rate of 4 DEG C/min, then be warming up to 840-
4-6h is roasted at 860 DEG C, after cooling to obtain the final product；Each raw material is parts by weight.
Preferably, in the preparation method, 15min is stirred under the conditions of 56 DEG C.
Preferably, in the preparation method, weak aqua ammonia is added dropwise into solution and adjusts pH value to 4.5.
Preferably, it in the preparation method, is placed in 70 DEG C of water-baths and obtains wet gel.
Preferably, it in the preparation method, puts it into drying box and obtains xerogel under the conditions of 110 DEG C.
Preferably, in the preparation method, 420 DEG C of roasting 3h are warming up to the heating rate of 4 DEG C/min.
Preferably, it in the preparation method, is warming up at 850 DEG C and roasts 4.5h.
The technology of the present invention effect:
This method is easy, quick, easy to operate, is successfully prepared the good Ca-Ti ore type LaCoO of purity3Material, Degradation Formaldehyde rate is high,
It can be prepared on a large scale.
Specific embodiment
Essentiality content of the invention is specifically introduced below with reference to embodiment.
Embodiment 1
A kind of Ca-Ti ore type LaCoO3The preparation method of material includes the following steps: 15 parts of La (NO3)3·6H2O, 15 parts of Co
(NO3)2·6H2O and 40 part of citric acid solid is added 90 parts of distilled water and is configured to mixed solution, and stirring 15min makes under the conditions of 56 DEG C
It is uniformly mixed, and weak aqua ammonia is added dropwise into solution and adjusts pH value to 4.5, is placed in 70 DEG C of water-baths after obtaining wet gel, is put
Enter and obtain xerogel in drying box under the conditions of 110 DEG C, then be placed in sample grind into powder in Muffle furnace, with 4 DEG C/min's
Heating rate is warming up to 420 DEG C of roasting 3h, then is warming up at 850 DEG C and roasts 5h, after cooling to obtain the final product；Each raw material is parts by weight.
Embodiment 2
A kind of Ca-Ti ore type LaCoO3The preparation method of material includes the following steps: 10 parts of La (NO3)3·6H2O, 10 parts of Co
(NO3)2·6H2O and 35 part of citric acid solid is added 85 parts of distilled water and is configured to mixed solution, and stirring 10min makes under the conditions of 54 DEG C
It is uniformly mixed, and weak aqua ammonia is added dropwise into solution and adjusts pH value to 4.4, is placed in 65 DEG C of water-baths after obtaining wet gel, is put
Enter and obtain xerogel in drying box under the conditions of 105 DEG C, then be placed in sample grind into powder in Muffle furnace, with 4 DEG C/min's
Heating rate is warming up to 410 DEG C of roasting 2.5h, then is warming up at 840 DEG C and roasts 4h, after cooling to obtain the final product；Each raw material is weight
Part.
Embodiment 3
A kind of Ca-Ti ore type LaCoO3The preparation method of material includes the following steps: 20 parts of La (NO3)3·6H2O, 20 parts of Co
(NO3)2·6H2O and 45 part of citric acid solid is added 95 parts of distilled water and is configured to mixed solution, and stirring 20min makes under the conditions of 58 DEG C
It is uniformly mixed, and weak aqua ammonia is added dropwise into solution and adjusts pH value to 4.6, is placed in 75 DEG C of water-baths after obtaining wet gel, is put
Enter and obtain xerogel in drying box under the conditions of 115 DEG C, then be placed in sample grind into powder in Muffle furnace, with 4 DEG C/min's
Heating rate is warming up to 430 DEG C of roasting 3.5h, then is warming up at 860 DEG C and roasts 6h, after cooling to obtain the final product；Each raw material is weight
Part.
This method is easy, quick, easy to operate, is successfully prepared the good Ca-Ti ore type LaCoO of purity3Material, Degradation Formaldehyde
Rate is high, can be prepared on a large scale.
Claims (7)
1. a kind of Ca-Ti ore type LaCoO3The preparation method of material, it is characterised in that include the following steps: 10-20 parts of La
(NO3)3·6H2O, 10-20 parts of Co (NO3)2·6H2O and 35-45 parts of citric acid solid is added 85-95 parts of distilled water and is configured to mix
Solution is closed, stirring 10-20min is uniformly mixed it under the conditions of 54-58 DEG C, and weak aqua ammonia is added dropwise into solution and adjusts pH value to 4.4-
4.6, it is placed in 65-75 DEG C of water-bath after obtaining wet gel, puts it into drying box and obtain dry coagulate under the conditions of 105-115 DEG C
Glue, then sample grind into powder is placed in Muffle furnace, 410-430 DEG C of roasting 2.5- is warming up to the heating rate of 4 DEG C/min
3.5h, then be warming up at 840-860 DEG C and roast 4-6h, after cooling to obtain the final product；Each raw material is parts by weight.
2. preparation method according to claim 1, it is characterised in that: stir 15min under the conditions of 56 DEG C.
3. preparation method according to claim 1, it is characterised in that: weak aqua ammonia is added dropwise into solution and adjusts pH value to 4.5.
4. preparation method according to claim 1, it is characterised in that: be placed in 70 DEG C of water-baths and obtain wet gel.
5. preparation method according to claim 1, it is characterised in that: put it into drying box and obtained under the conditions of 110 DEG C
To xerogel.
6. preparation method according to claim 1, it is characterised in that: be warming up to 420 DEG C of roastings with the heating rate of 4 DEG C/min
Burn 3h.
7. preparation method according to claim 1, it is characterised in that: be warming up at 850 DEG C and roast 4.5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810825789.2A CN108928855A (en) | 2018-07-25 | 2018-07-25 | A kind of Ca-Ti ore type LaCoO3The preparation method of material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810825789.2A CN108928855A (en) | 2018-07-25 | 2018-07-25 | A kind of Ca-Ti ore type LaCoO3The preparation method of material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108928855A true CN108928855A (en) | 2018-12-04 |
Family
ID=64444431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810825789.2A Withdrawn CN108928855A (en) | 2018-07-25 | 2018-07-25 | A kind of Ca-Ti ore type LaCoO3The preparation method of material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108928855A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114044540A (en) * | 2021-09-07 | 2022-02-15 | 南京航空航天大学 | A-site and B-site co-doped perovskite type electromagnetic wave-absorbing material and preparation method thereof |
-
2018
- 2018-07-25 CN CN201810825789.2A patent/CN108928855A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114044540A (en) * | 2021-09-07 | 2022-02-15 | 南京航空航天大学 | A-site and B-site co-doped perovskite type electromagnetic wave-absorbing material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102039118B (en) | Preparation method of supported nano TiO2 photocatalytic material with diatomite filter aid as carrier | |
| CN102039117B (en) | Method for preparing loaded nano TiO2 composite material by using precipitated white carbon black as carrier | |
| CN101134574B (en) | Method for preparing manganese octahedron molecular sieve by employing formwork agent modified backflow process | |
| CN104307501B (en) | A kind of preparation method of the nano zine oxide as photochemical catalyst | |
| CN102351242A (en) | Solvent-thermal method for preparing single-phase bismuth titanate Bi2Ti2O7 | |
| CN108246345A (en) | A kind of preparation method of oxide-molecular sieve catalyst | |
| CN102698785A (en) | Preparation method of diatomite-loaded nitrogen-doped nanometer TiO2 photocatalysis material | |
| CN106925274A (en) | A kind of preparation method of load type metal Co catalysts | |
| CN102259035B (en) | Method for preparing nonmetal-doped TiO2 photocatalyst | |
| CN108928855A (en) | A kind of Ca-Ti ore type LaCoO3The preparation method of material | |
| CN106179372B (en) | A kind of C@Fe based on biomass porous carbon3O4The Preparation method and use of@Bi composite photo-catalyst | |
| CN105776311B (en) | A kind of preparation method of copper oxide nano material | |
| CN108745422B (en) | 1, 4-butanediol dehydration catalyst with adjustable surface acidity and alkalinity, preparation method and application | |
| CN108160105B (en) | Molecular sieve catalyst for methane selective catalytic reduction and synthesis method thereof | |
| CN108339563A (en) | A kind of preparation method of aluminium oxide-molecular sieve catalyst | |
| CN107552042B (en) | Sheet manganese titanate coats attapulgite loaded CeO2Low temperature Photo-SCR denitrating catalyst and preparation method | |
| CN106178944A (en) | A kind of efficient formaldehyde cleanser and preparation method thereof | |
| CN110327928A (en) | A kind of photochemical catalyst and preparation method thereof of efficient degradation organic pollutant | |
| CN106111139A (en) | A kind of native protein stone and TiO2hydro-thermal complex method | |
| CN106423162A (en) | Tin-silver co-doped nano-zinc oxide as photocatalyst and preparation method thereof | |
| CN105344359A (en) | Preparation method and use of CuO/Ce-Mn-O catalyst | |
| CN114133582A (en) | Preparation of three-dimensional structure Co-MOF-74 material and application of VOCs (volatile organic Compounds) of material | |
| CN104229891A (en) | Method for preparing calcium tantalate powder | |
| CN109046439B (en) | Synthesis method of high-doping high-acidity mesoporous silica solid acid catalyst | |
| CN105056962B (en) | A kind of preparation method of support type rare earth double-perovskite compound oxide photocatalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181204 |