CN104446417A - Porous block-shaped ferrite prepared based on loofah sponge and preparation method of porous block-shaped ferrite - Google Patents
Porous block-shaped ferrite prepared based on loofah sponge and preparation method of porous block-shaped ferrite Download PDFInfo
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- CN104446417A CN104446417A CN201410725238.0A CN201410725238A CN104446417A CN 104446417 A CN104446417 A CN 104446417A CN 201410725238 A CN201410725238 A CN 201410725238A CN 104446417 A CN104446417 A CN 104446417A
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- ferrite
- luffa
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- vegetable sponge
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Abstract
The invention discloses porous block-shaped ferrite prepared based on loofah sponge and a preparation method of the porous block-shaped ferrite. The preparation method comprises the following steps: firstly airing complete loofah sponge, and soaking the complete loofah sponge in a ferrite precursor solution; thermally decomposing the product at high temperature, and carrying out in situ synthesis in plant sinews, so as to obtain a porous block-shaped ferrite material with certain mechanical strength. By virtue of a natural porous block-shaped structure of the loofah sponge, the disadvantage that ferrite prepared by virtue of a traditional method does not simultaneously have porosity and the block shape is overcome; by virtue of the magnetism and catalytic performance of the ferrite as well as high performance and easy recovery of a porous block-shaped material, the porous block-shaped ferrite prepared by virtue of the preparation method has potential purposes in the treatment of adsorbents and refractory wastewater, is low in cost, easy to recycle and strong in performance and has both absorption performance and catalytic performance. Besides, the loofah sponge which is agricultural waste with low cost is utilized as a raw material, so that the sustainable development of agricultural production can be promoted, and social and economic values are very high.
Description
Technical field
The present invention relates to material and preparation method thereof, particularly relate to a kind of porous block ferrite of preparing based on Vegetable Sponge of Luffa and method thereof.
Background technology
Vegetable Sponge of Luffa is the vascular bundle of the ripe fault of cucurbitaceous plant sponge gourd or Guangdong sponge gourd.In the process of growth of sponge gourd, Vegetable Sponge of Luffa is the part that in sponge gourd, dioxide-containing silica is higher, toughness is stronger, and the vascular bundle tubulose of its natural generation and reticulated structure make it have very strong adsorptive power.Vegetable Sponge of Luffa is generally used as the purposes such as cloths for cleaning, bathing, decoration, is applied to the rare report in new chemical materials field.
The chemical structural formula of spinel type ferrite is AB
2o
4(A is Mn
2+, Fe
2+, Ni
2+, Cu
2+, Co
2+or Zn
2+, B is Fe
3+or Mn
3+), be one of soft magnetic ferrite that output is maximum, most widely used in the world.Except having except widespread use in fields such as high frequency transformation, magnetic recording, mr, spinel type ferrite or a kind of common catalyzer, may be used for catalyzing and synthesizing ammonia, the dehydrogenation reaction of ethylbenzene, butylene etc., CO
2, SO
2and NO
2deng reduction reaction, and the catalytic degradation reaction etc. of organic pollutant.When being applied to field of waste water treatment, spinel type ferrite have can magnetic recovery, there is the features such as catalyzed degradation performance, therefore, the preparation and application of spinel type ferrite obtain general concern and research.The Ferrite Material prepared traditionally is generally two kinds of forms: block or Powdered.Block ferrite easily reclaims, the easy feature such as recycling, but its internal structure is closed, absorption property extreme difference; And Powdered ferrite has the features such as specific surface area is high, surfactivity is strong, but its pulverous pattern is difficult to recycle, and easily causes secondary pollution.How to prepare the Ferrite Material having the characteristic such as high-specific surface area, high surface, easily recovery, easily recycling concurrently and become difficult point and focus.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, porous block ferrite prepared based on Vegetable Sponge of Luffa and preparation method thereof is provided.
Based on a porous block ferrite prepared by Vegetable Sponge of Luffa, take Vegetable Sponge of Luffa as template, obtained porous block spinel type ferrite material; The ferrite natural train of thought that instead of in Vegetable Sponge of Luffa defines porous, inside in latticed, overall in block material.
The general structure of described spinel type ferrite is AB
2o
4, A is Mn
2+, Fe
2+, Ni
2+, Cu
2+, Co
2+or Zn
2+, B is Fe
3+.
The described ferritic preparation method of porous block, step is as follows:
Vegetable Sponge of Luffa dried naturally or dries, and removing the impurity on its surface by washed with de-ionized water, with post-drying, retaining the original overall pattern of Vegetable Sponge of Luffa;
Divalent metal salt is mixed with mol ratio 1:2 with trivalent metal salt, obtains ferrite presoma, Vegetable Sponge of Luffa is soaked in ferrite presoma;
After ferrite presoma penetrates into Vegetable Sponge of Luffa network internal, product is dried and is placed in stove, high-temperature calcination, cooling.
Described preparation method, step is specific as follows:
1) natural Vegetable Sponge of Luffa dried naturally or dry, by washed with de-ionized water, drying under 60 ~ 150 DEG C of conditions after removing impurity, retain the overall pattern of Vegetable Sponge of Luffa;
2) be that 1:2 joins in 0.1 ~ 2 liter of deionized water by the trivalent metal salt of the divalent metal salt of 0.05 ~ 0.5 mole and 0.1 ~ 1 mole with mol ratio, after mixing and stirring, obtain ferrite presoma;
3) get the product of 10 grams of step 1), join step 2) in the ferrite presoma of gained, soak 2-24 hour; Products therefrom 60 ~ 150 DEG C of oven dry are placed in stove, calcine 0.5 ~ 3 hour for 450 ~ 900 DEG C, take out, obtain the Ferrite Material of porous block after cooling.
Described divalent metal salt is Mn
2+, Fe
2+, Ni
2+, Cu
2+, Co
2+or Zn
2+nitrate or muriate in one or more.
Described trivalent metal salt is Fe
3+nitrate or muriate in one or both.
Beneficial effect of the present invention: the porous block ferrite prepared from Vegetable Sponge of Luffa that the present invention proposes and method thereof take full advantage of natural bulk and the reticulated structure of Vegetable Sponge of Luffa, ferrite instead of the natural reticulated structure of Vegetable Sponge of Luffa, define the Ferrite Material of porous block, thus have the advantages such as Powdered ferrite absorption property is strong, surfactivity is high and block ferrite easily reclaims, can reuse concurrently, in fields such as sorbent material, the process of used water difficult to degradate catalyzed degradation, there is potential purposes.The porous block ferrite prepared from Vegetable Sponge of Luffa that the present invention proposes and method thereof, technical process is simple, and material structure is novel, and potential use is extensive, has very strong using value.
Embodiment
The present invention proposes a kind of porous block ferrite prepared based on Vegetable Sponge of Luffa and preparation method thereof.Embodiment comprises the following steps:
The first step of preparation is naturally dried by natural Vegetable Sponge of Luffa or dries, and remove the impurity on its surface by washed with de-ionized water, with post-drying.Retaining the original overall pattern of Vegetable Sponge of Luffa, having macroscopically for bulk, microcosmic being feature that is network-like and vascular bundle shape.
The second step of preparation is configuration ferrite presoma and carries out immersion treatment to Vegetable Sponge of Luffa.Divalent metal salt is mixed with mol ratio 1:2 with trivalent metal salt, obtains ferrite presoma.Vegetable Sponge of Luffa is soaked in ferrite presoma.Trivalent metal salt can select iron nitrate or iron(ic) chloride, because iron nitrate and iron(ic) chloride all have extremely strong corrodibility, it, by the surface of corrosion Vegetable Sponge of Luffa, makes ferrite presoma penetrate into Vegetable Sponge of Luffa network internal.
3rd step of preparation prepares porous block ferrite.After ferrite presoma penetrates into Vegetable Sponge of Luffa network internal, product is dried and is placed in stove, high-temperature calcination.In high-temperature burning process, the main component of Vegetable Sponge of Luffa will be decomposed, and its structure replace by the ferrite of fabricated in situ, thus obtain that there is Ferrite Material that is network-like, lumphy structure.This material has the advantages such as Powdered ferrite absorption property is strong, surfactivity is high and block ferrite easily reclaims, can reuse concurrently, has potential purposes in fields such as sorbent material, the process of used water difficult to degradate catalyzed degradation.
The present invention is further illustrated below in conjunction with embodiment.
embodiment 1
1) natural Vegetable Sponge of Luffa dried naturally or dry, by washed with de-ionized water, drying under 60 DEG C of conditions after removing impurity, retain the overall pattern of Vegetable Sponge of Luffa;
2) iron trichloride of the iron protochloride of 0.05 mole and 0.1 mole is joined in 0.1 liter of deionized water, after mixing and stirring, obtain ferrite presoma;
3) get the product of 10 grams of step 1), join step 2) in the ferrite presoma of gained, soak 24 hours; Products therefrom 60 DEG C of oven dry are placed in stove, calcine 3 hours for 450 DEG C, take out, obtain the ferriferrous oxide material of porous block after cooling.
embodiment 2
1) natural Vegetable Sponge of Luffa dried naturally or dry, by washed with de-ionized water, drying under 150 DEG C of conditions after removing impurity, retain the overall pattern of Vegetable Sponge of Luffa;
2) iron trichloride of the Manganous chloride tetrahydrate of 0.5 mole and 1 mole is joined in 2 liters of deionized waters, after mixing and stirring, obtain ferrite presoma;
3) get the product of 10 grams of step 1), join step 2) in the ferrite presoma of gained, soak 2 hours; Products therefrom 150 DEG C of oven dry are placed in stove, calcine 0.5 hour for 900 DEG C, take out, obtain the Manganese Ferrite material of porous block after cooling.
embodiment 3
1) natural Vegetable Sponge of Luffa dried naturally or dry, by washed with de-ionized water, drying under 75 DEG C of conditions after removing impurity, retain the overall pattern of Vegetable Sponge of Luffa;
2) iron nitrate of the nickelous nitrate of 0.1 mole and 0.2 mole is joined in 1 liter of deionized water, after mixing and stirring, obtain ferrite presoma;
3) get the product of 10 grams of step 1), join step 2) in the ferrite presoma of gained, soak 12 hours; Products therefrom 75 DEG C of oven dry are placed in stove, calcine 2 hours for 600 DEG C, take out, obtain the nickel ferrite based magnetic loaded material of porous block after cooling.
embodiment 4
1) natural Vegetable Sponge of Luffa dried naturally or dry, by washed with de-ionized water, drying under 100 DEG C of conditions after removing impurity, retain the overall pattern of Vegetable Sponge of Luffa;
2) iron nitrate of the cupric nitrate of 0.25 mole and 0.5 mole is joined in 1.5 liters of deionized waters, after mixing and stirring, obtain ferrite presoma;
3) get the product of 10 grams of step 1), join step 2) in the ferrite presoma of gained, soak 15 hours; Products therefrom 100 DEG C of oven dry are placed in stove, calcine 1.5 hours for 750 DEG C, take out, obtain the coppeferrite material of porous block after cooling.
embodiment 5
1) natural Vegetable Sponge of Luffa dried naturally or dry, by washed with de-ionized water, drying under 125 DEG C of conditions after removing impurity, retain the overall pattern of Vegetable Sponge of Luffa;
2) iron nitrate of the Jing Ti/Bao Pian COBALT NITRATE CRYSTALS/FLAKES of 0.2 mole and 0.4 mole is joined in 0.75 liter of deionized water, after mixing and stirring, obtain ferrite presoma;
3) get the product of 10 grams of step 1), join step 2) in the ferrite presoma of gained, soak 8 hours; Products therefrom 125 DEG C of oven dry are placed in stove, calcine 1 hour for 800 DEG C, take out, obtain the cobalt ferrite material of porous block after cooling.
embodiment 6
1) natural Vegetable Sponge of Luffa dried naturally or dry, by washed with de-ionized water, drying under 90 DEG C of conditions after removing impurity, retain the overall pattern of Vegetable Sponge of Luffa;
2) iron trichloride of the zinc chloride of 0.15 mole and 0.3 mole is joined in 1 liter of deionized water, after mixing and stirring, obtain ferrite presoma;
3) get the product of 10 grams of step 1), join step 2) in the ferrite presoma of gained, soak 16 hours; Products therefrom 90 DEG C of oven dry are placed in stove, calcine 2.5 hours for 700 DEG C, take out, obtain the zinc ferrite material of porous block after cooling.
Claims (6)
1. based on a porous block ferrite prepared by Vegetable Sponge of Luffa, it is characterized in that, it is a kind of is template with Vegetable Sponge of Luffa, obtained porous block spinel type ferrite material; The ferrite natural train of thought that instead of in Vegetable Sponge of Luffa defines porous, inside in latticed, overall in block material.
2. porous block ferrite according to claim 1, is characterized in that, the general structure of described spinel type ferrite is AB
2o
4, A is Mn
2+, Fe
2+, Ni
2+, Cu
2+, Co
2+or Zn
2+, B is Fe
3+.
3. the ferritic preparation method of porous block according to claim 2, it is characterized in that, step is as follows:
Vegetable Sponge of Luffa dried naturally or dries, and removing the impurity on its surface by washed with de-ionized water, with post-drying, retaining the original overall pattern of Vegetable Sponge of Luffa;
Divalent metal salt is mixed with mol ratio 1:2 with trivalent metal salt, obtains ferrite presoma, Vegetable Sponge of Luffa is soaked in ferrite presoma;
After ferrite presoma penetrates into Vegetable Sponge of Luffa network internal, product is dried and is placed in stove, high-temperature calcination, cooling.
4. preparation method according to claim 3, is characterized in that, step is specific as follows:
1) natural Vegetable Sponge of Luffa dried naturally or dry, by washed with de-ionized water, drying under 60 ~ 150 DEG C of conditions after removing impurity, retain the overall pattern of Vegetable Sponge of Luffa;
2) be that 1:2 joins in 0.1 ~ 2 liter of deionized water by the trivalent metal salt of the divalent metal salt of 0.05 ~ 0.5 mole and 0.1 ~ 1 mole with mol ratio, after mixing and stirring, obtain ferrite presoma;
3) get the product of 10 grams of step 1), join step 2) in the ferrite presoma of gained, soak 2-24 hour; Products therefrom 60 ~ 150 DEG C of oven dry are placed in stove, calcine 0.5 ~ 3 hour for 450 ~ 900 DEG C, take out, obtain the Ferrite Material of porous block after cooling.
5. preparation method according to claim 3, is characterized in that, described divalent metal salt is Mn
2+, Fe
2+, Ni
2+, Cu
2+, Co
2+or Zn
2+nitrate or muriate in one or more.
6. preparation method according to claim 3, is characterized in that, described trivalent metal salt is Fe
3+nitrate or muriate in one or both.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104927762A (en) * | 2015-06-01 | 2015-09-23 | 吉林大学 | Worm-bore-like porous-carbon/magnetic particle compound absorbent and preparation method thereof |
| CN107029657A (en) * | 2017-05-14 | 2017-08-11 | 刘滨 | A kind of preparation method of porous high-temperature carbon dioxide absorbing material |
| CN108585932A (en) * | 2018-06-04 | 2018-09-28 | 安徽农业大学 | A kind of preparation method of linden templated porous ferrite ceramics |
| CN109589981A (en) * | 2018-12-05 | 2019-04-09 | 武汉轻工大学 | A kind of luffa shape biomass pyrolytic is except char catalyst and its preparation method and application |
| CN110508265A (en) * | 2019-08-20 | 2019-11-29 | 武汉纺织大学 | A kind of magnetism luffa charcoal and its preparation method and application |
| CN112537764A (en) * | 2020-11-11 | 2021-03-23 | 山东大学 | Carbon-based porous composite wave absorbing agent based on natural loofah sponge and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104927762A (en) * | 2015-06-01 | 2015-09-23 | 吉林大学 | Worm-bore-like porous-carbon/magnetic particle compound absorbent and preparation method thereof |
| CN107029657A (en) * | 2017-05-14 | 2017-08-11 | 刘滨 | A kind of preparation method of porous high-temperature carbon dioxide absorbing material |
| CN108585932A (en) * | 2018-06-04 | 2018-09-28 | 安徽农业大学 | A kind of preparation method of linden templated porous ferrite ceramics |
| CN109589981A (en) * | 2018-12-05 | 2019-04-09 | 武汉轻工大学 | A kind of luffa shape biomass pyrolytic is except char catalyst and its preparation method and application |
| CN109589981B (en) * | 2018-12-05 | 2021-11-16 | 武汉轻工大学 | Loofah sponge-like biomass pyrolysis decoking catalyst and preparation method and application thereof |
| CN110508265A (en) * | 2019-08-20 | 2019-11-29 | 武汉纺织大学 | A kind of magnetism luffa charcoal and its preparation method and application |
| CN112537764A (en) * | 2020-11-11 | 2021-03-23 | 山东大学 | Carbon-based porous composite wave absorbing agent based on natural loofah sponge and preparation method thereof |
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Application publication date: 20150325 |