CN107626319A - A kind of preparation method of flower-shaped cadmium ferrite photochemical catalyst - Google Patents
A kind of preparation method of flower-shaped cadmium ferrite photochemical catalyst Download PDFInfo
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- CN107626319A CN107626319A CN201710930461.2A CN201710930461A CN107626319A CN 107626319 A CN107626319 A CN 107626319A CN 201710930461 A CN201710930461 A CN 201710930461A CN 107626319 A CN107626319 A CN 107626319A
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Abstract
The invention discloses a kind of preparation method of flower-shaped cadmium ferrite photochemical catalyst, belong to the preparing technical field of novel photocatalysis material.Technical scheme main points are：By lanthanum nitrate and ferric nitrate with 1:1 mol ratio is added in ethanol solution, solution is transferred in hydrothermal reaction kettle and reacts 8 12h in 160 180 DEG C, washing is ground after drying, and be then warming up to 700 900 DEG C of 2 4h of calcining using 13 DEG C/min heating rate in a nitrogen atmosphere and be made has flower-like structure and particle diameter as 5 10 μm of cadmium ferrite photochemical catalyst by what the cadmium ferrite of layer structure was assembled into.The preparation process of the present invention has the advantages of raw material for participating in reaction is simple and easy to get and simple to operate.
Description
Technical field
The invention belongs to the preparing technical field of novel photocatalysis material, and in particular to a kind of flower-shaped cadmium ferrite photochemical catalyst
Preparation method.
Background technology
With the development of process of industrialization, problem of environmental pollution getting worse, environmental protection and sustainable development turn into people
The subject matter that class faces.Photocatalysis technology is to promote pollutant to be sent out in catalyst surface using the irradiation of the light sources such as sunshine
Raw redox reaction, finally makes it be degraded to environment-friendly small molecule inorganic matter.
Cadmium ferrite is a kind of nontoxic, stable performance ABO3Type perovskite semi-conducting material（Eg=1.86-2.36 eV）,
With excellent physics, chemical property, there is certain application potential in catalysis, air-sensitive, electrochemistry, magnetic material etc., its
Visible ray can be absorbed, be easy to the advantages such as Magnetic Isolation by having as catalysis material, also of interest by people.
The performance of conductor photocatalysis material is influenceed by factors, and wherein pattern is an important influence factor.
The pattern of material is different, and its specific surface area, active face etc. are also not quite similar, and does not cause photocatalysis performance that material shows also not
It is identical.The main pattern of document report cadmium ferrite is graininess at present, also has some document reports to have spherical, stratiform, yolk shell
The cadmium ferrite of the patterns such as structure.
The content of the invention
Present invention solves the technical problem that it there is provided a kind of raw material flower-shaped ferrous acid cheap and easy to get and simple to operate
The preparation method of lanthanum photochemical catalyst, this method synthesizes the cadmium ferrite presoma of specific morphology using the mode of solvent heat, in nitrogen
Flower-shaped cadmium ferrite photochemical catalyst is prepared under gas atmosphere by way of calcining.
The present invention is to solve above-mentioned technical problem to adopt the following technical scheme that, a kind of preparation of flower-shaped cadmium ferrite photochemical catalyst
Method, it is characterised in that concretely comprise the following steps：By lanthanum nitrate and ferric nitrate with 1:1 mol ratio is added in ethanol solution, will be molten
Liquid is transferred in hydrothermal reaction kettle reacts 8-12 h in 160-180 DEG C, and washing is ground after drying, then in a nitrogen atmosphere with 1-
3 DEG C/min heating rate is warming up to 700-900 DEG C of calcining 2-4 h and is made has flower by what the cadmium ferrite of layer structure was assembled into
The cadmium ferrite photochemical catalyst that shape structure and particle diameter are 5-10 μm.
Flower-shaped cadmium ferrite prepared by the present invention is the flower being assembled into by the cadmium ferrite with layer structure along certain orientation
Shape structure, its particle diameter are 5-10 μm.The cadmium ferrite that BET test structures show to prepare belongs to meso-hole structure, on the one hand the structure has
Beneficial to fully contacting for pollutant in Photocatalytic Degradation Process and catalyst, intergranular group on the other hand can be effectively prevented
It is poly-, so as to significantly improve its photocatalysis performance.The preparation process of the present invention has the raw material for participating in reaction simple and easy to get and operated
The advantages of simple and convenient.
Brief description of the drawings
Fig. 1 is the scanning electron microscope (SEM) photograph of cadmium ferrite photochemical catalyst made from embodiment 3；
Fig. 2 is the graph of pore diameter distribution of cadmium ferrite photochemical catalyst made from embodiment 2；
Fig. 3 is the photocatalysis performance figure of cadmium ferrite photochemical catalyst made from embodiment 3.
Embodiment
The above of the present invention is described in further details by the following examples, but this should not be interpreted as to this
The scope for inventing above-mentioned theme is only limitted to following embodiment, and all technologies realized based on the above of the present invention belong to this hair
Bright scope.
Embodiment 1
By lanthanum nitrate and ferric nitrate with 1:1 mol ratio, which is added in ethanol solution, stirs 30 min, is then transferred to solution
10 h are reacted in 160 DEG C in hydrothermal reaction kettle, drying is washed, is placed in after grinding in tube furnace in a nitrogen atmosphere with 1 DEG C/min
Heating rate be warming up to 700 DEG C after calcine 2 h flower-shaped cadmium ferrite photochemical catalyst be made.
Embodiment 2
By lanthanum nitrate and ferric nitrate with 1:1 mol ratio, which is added in ethanol solution, stirs 30 min, is then transferred to solution
12 h are reacted in 170 DEG C in hydrothermal reaction kettle, drying is washed, is placed in after grinding in tube furnace in a nitrogen atmosphere with 3 DEG C/min
Heating rate be warming up to 800 DEG C calcining 3 h flower-shaped cadmium ferrite photochemical catalyst is made.
Embodiment 3
By lanthanum nitrate and ferric nitrate with 1:1 mol ratio, which is added in ethanol solution, stirs 30 min, is then transferred to solution
8 h are reacted in 180 DEG C in hydrothermal reaction kettle, drying is washed, is placed in after grinding in tube furnace in a nitrogen atmosphere with 2 DEG C/min's
Heating rate is warming up to 900 DEG C of 4 h of calcining and flower-shaped cadmium ferrite photochemical catalyst is made.
Embodiment above describes the general principle of the present invention, main features and advantages, the technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification
Reason, under the scope for not departing from the principle of the invention, various changes and modifications of the present invention are possible, and these changes and improvements are each fallen within
In the scope of protection of the invention.
Claims (2)
1. a kind of preparation method of flower-shaped cadmium ferrite photochemical catalyst, it is characterised in that concretely comprise the following steps：By lanthanum nitrate and ferric nitrate
With 1:1 mol ratio is added in ethanol solution, and solution is transferred in hydrothermal reaction kettle and reacts 8-12h in 160-180 DEG C, is washed
Wash and ground after drying, being then warming up to 700-900 DEG C of calcining 2-4h in a nitrogen atmosphere with 1-3 DEG C/min heating rate is made
There is the cadmium ferrite photochemical catalyst that flower-like structure and particle diameter are 5-10 μm by what the cadmium ferrite of layer structure was assembled into.
2. the preparation method of flower-shaped cadmium ferrite photochemical catalyst according to claim 1, it is characterised in that：Described cadmium ferrite
Photochemical catalyst has meso-hole structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710930461.2A CN107626319B (en) | 2017-10-09 | 2017-10-09 | Preparation method of flower-like lanthanum ferrite photocatalyst |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710930461.2A CN107626319B (en) | 2017-10-09 | 2017-10-09 | Preparation method of flower-like lanthanum ferrite photocatalyst |
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| CN107626319A true CN107626319A (en) | 2018-01-26 |
| CN107626319B CN107626319B (en) | 2020-02-14 |
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| CN201710930461.2A Expired - Fee Related CN107626319B (en) | 2017-10-09 | 2017-10-09 | Preparation method of flower-like lanthanum ferrite photocatalyst |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355704A (en) * | 2018-12-11 | 2019-02-19 | 西南科技大学 | A kind of gas-sensitive type LaCoO3The preparation method of epitaxial film |
| CN109399726A (en) * | 2018-11-15 | 2019-03-01 | 沈阳理工大学 | A kind of preparation method of iron lanthanum-oxides molecular sieve type scavenging material |
| CN110252415A (en) * | 2019-07-11 | 2019-09-20 | 佛山科学技术学院 | For eliminating the preparation method of the amino functional MOFs of indoor formaldehyde |
| CN113559882A (en) * | 2021-07-07 | 2021-10-29 | 哈尔滨学院 | Preparation method of sulfur/lanthanum ferrite nanocomposite |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102190483A (en) * | 2010-03-01 | 2011-09-21 | 中国科学院生态环境研究中心 | Three-dimensional micro-nano material composed of nano CoFe2O4 and preparation method thereof |
| CN103553140A (en) * | 2013-10-14 | 2014-02-05 | 济南大学 | Method for preparing lanthanum ferrite nanodisk |
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2017
- 2017-10-09 CN CN201710930461.2A patent/CN107626319B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190483A (en) * | 2010-03-01 | 2011-09-21 | 中国科学院生态环境研究中心 | Three-dimensional micro-nano material composed of nano CoFe2O4 and preparation method thereof |
| CN103553140A (en) * | 2013-10-14 | 2014-02-05 | 济南大学 | Method for preparing lanthanum ferrite nanodisk |
Non-Patent Citations (1)
| Title |
|---|
| SUBRAMANIAM THIRUMALAIRAJAN等: "Photocatalytic degradation of organic dyes under visible light irradiation by floral-like LaFeO3 nanostructures comprised of nanosheet petals", 《NEW J. CHEM.》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109399726A (en) * | 2018-11-15 | 2019-03-01 | 沈阳理工大学 | A kind of preparation method of iron lanthanum-oxides molecular sieve type scavenging material |
| CN109355704A (en) * | 2018-12-11 | 2019-02-19 | 西南科技大学 | A kind of gas-sensitive type LaCoO3The preparation method of epitaxial film |
| CN110252415A (en) * | 2019-07-11 | 2019-09-20 | 佛山科学技术学院 | For eliminating the preparation method of the amino functional MOFs of indoor formaldehyde |
| CN113559882A (en) * | 2021-07-07 | 2021-10-29 | 哈尔滨学院 | Preparation method of sulfur/lanthanum ferrite nanocomposite |
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| CN107626319B (en) | 2020-02-14 |
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