CN107497406A - A kind of preparation method of chitosan bentonite composite - Google Patents
A kind of preparation method of chitosan bentonite composite Download PDFInfo
- Publication number
- CN107497406A CN107497406A CN201710879276.5A CN201710879276A CN107497406A CN 107497406 A CN107497406 A CN 107497406A CN 201710879276 A CN201710879276 A CN 201710879276A CN 107497406 A CN107497406 A CN 107497406A
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- Prior art keywords
- chitosan
- bentonite
- preparation
- composite material
- present
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- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
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- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
-
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- Dispersion Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
It is an object of the invention to provide a kind of environment-friendly, good biocompatibility, the preparation method of the chitosan bentonite composite of adsorption effect significant effect.The chitosan bentonite compound adsorbent that the preparation method of the present invention is prepared using chitosan and modified two kinds of natural materials of bentonite is a kind of new heavy metal wastewater thereby adsorbent, it is big compared with using only chitosan and bentonite adsorption amount, addition is smaller, easily it is separated from the water and regenerates, cleanliness without any pollution, it is environmentally friendly.
Description
Technical field
The present invention relates to a kind of preparation method of chitosan-bentonite composite material, belongs to water pollution treatment technology neck
Domain.
Background technology
Chitosan-phospholipid complex is all to have good flocculation, clarification.As the fining agent of beverage, suspension can be made
Thing flocculates rapidly, natural sedimentation, improves the yield of stoste；In Chinese medicine extract, protein, tannic acid and the pectin of macromolecular,
It can easily be removed with chitosan solution, refine out the higher effective components of Chinese medicinal of purity；Using the adsorptivity of chitosan,
There is good effect in terms of purification of water quality.
Bentonite is the nonmetallic minerals using montmorillonite as main mineral constituent, and smectite structure is by two silica four sides
Body presss from both sides the 2 of one layer of alumina octahedral composition：1 type crystal structure, because the layer structure that montmorillonite structure cell is formed has some sun
Ion, such as Cu, Mg, Na, K, and the effect of these cations and montmorillonite structure cell is very unstable, is easily handed over by other cations
Change, therefore there is preferable ion exchangeable, its permanent negative electrical charge of surface band, thus can adsorb metal positively charged in water from
Son.Bentonite is cheap and easy to get because of its rich reserves, and there is the advantages that higher chemistry and biological stability, regenerating easily to turn into
The water-purifying material of prospect is got a good eye in processing heavy metal wastewater thereby.
Therefore, a kind of compound material being prepared into of chitosan-bentonite can be studied, to purify water.
The content of the invention
It is an object of the invention to provide a kind of environment-friendly, good biocompatibility, the shell of adsorption effect significant effect gathers
The preparation method of sugar-bentonite composite material.
The present invention provides a kind of preparation method of chitosan-bentonite composite material, comprises the following steps (1) by bentonite
Muffle kiln roasting 2h is put into, is taken out, cooling, obtains activated bentonite；(2) take chitosan to be dissolved in water, add vinegar thereto
Acid, colloidal liquid is generated, activated bentonite is added in colloidal liquid, obtain that liquid is blended；(3) hydrogen is added into blending liquid
Sodium hydroxide solution, obtain flocculent deposit；(4) flocculent deposit is filtered, washed, drying, obtain chitosan-bentonite composite adsorption
Agent.
Further improvement of the present invention, sintering temperature is 700~1000 DEG C in step (1).
Further improvement of the present invention, the mass ratio of chitosan and activated bentonite is 1 in step (2)：1~15.
Further improvement of the present invention, it is 95% acetic acid to add 4~8ml mass concentrations per 100g chitosans in step (2).
Further improvement of the present invention, the temperature of step (2) is 60~80 DEG C.
Further improvement of the present invention, the mass concentration of sodium hydroxide solution is 2% in step (3).
Compared with prior art, beneficial effects of the present invention：
1st, preparation method low in raw material price of the invention, is readily obtained, and technique is simple, can save production cost, is adapted to
The purification run of industrial wastewater.
2nd, the chitosan that preparation method of the invention is prepared using chitosan and modified two kinds of natural materials of bentonite-
Bentonite bentonite composite adsorbent is a kind of new heavy metal wastewater thereby adsorbent, and it is compared with using only chitosan and bentonite adsorption amount
Greatly, addition is smaller, is easily separated from the water and regenerates, and cleanliness without any pollution is environmentally friendly.
Embodiment
Embodiment 1：
The present invention provides a kind of preparation method of chitosan-bentonite composite material, comprises the following steps (1) by bentonite
Muffle kiln roasting 2h is put into, is taken out, cooling, obtains activated bentonite；(2) take chitosan to be dissolved in water, add vinegar thereto
Acid, colloidal liquid is generated, activated bentonite is added in colloidal liquid, obtain that liquid is blended；(3) hydrogen is added into blending liquid
Sodium hydroxide solution, obtain flocculent deposit；(4) flocculent deposit is filtered, washed, drying, obtain chitosan-bentonite composite adsorption
Agent.
Further improvement of the present invention, sintering temperature is 700 DEG C in step (1).
Further improvement of the present invention, the mass ratio of chitosan and activated bentonite is 1 in step (2)：1.
Further improvement of the present invention, it is 95% acetic acid to add 4ml mass concentrations per 100g chitosans in step (2).
Further improvement of the present invention, the temperature of step (2) is 60 DEG C.
Further improvement of the present invention, the mass concentration of sodium hydroxide solution is 2% in step (3).
Embodiment 2：
The present invention provides a kind of preparation method of chitosan-bentonite composite material, comprises the following steps (1) by bentonite
Muffle kiln roasting 2h is put into, is taken out, cooling, obtains activated bentonite；(2) take chitosan to be dissolved in water, add vinegar thereto
Acid, colloidal liquid is generated, activated bentonite is added in colloidal liquid, obtain that liquid is blended；(3) hydrogen is added into blending liquid
Sodium hydroxide solution, obtain flocculent deposit；(4) flocculent deposit is filtered, washed, drying, obtain chitosan-bentonite composite adsorption
Agent.
Further improvement of the present invention, sintering temperature is 1000 DEG C in step (1).
Further improvement of the present invention, the mass ratio of chitosan and activated bentonite is 1 in step (2)：15.
Further improvement of the present invention, it is 95% acetic acid to add 8ml mass concentrations per 100g chitosans in step (2).
Further improvement of the present invention, the temperature of step (2) is 80 DEG C.
Further improvement of the present invention, the mass concentration of sodium hydroxide solution is 2% in step (3).
Embodiment 3：
The present invention provides a kind of preparation method of chitosan-bentonite composite material, comprises the following steps (1) by bentonite
Muffle kiln roasting 2h is put into, is taken out, cooling, obtains activated bentonite；(2) take chitosan to be dissolved in water, add vinegar thereto
Acid, colloidal liquid is generated, activated bentonite is added in colloidal liquid, obtain that liquid is blended；(3) hydrogen is added into blending liquid
Sodium hydroxide solution, obtain flocculent deposit；(4) flocculent deposit is filtered, washed, drying, obtain chitosan-bentonite composite adsorption
Agent.
Further improvement of the present invention, sintering temperature is 800 DEG C in step (1).
Further improvement of the present invention, the mass ratio of chitosan and activated bentonite is 1 in step (2)：5.
Further improvement of the present invention, it is 95% acetic acid to add 6ml mass concentrations per 100g chitosans in step (2).
Further improvement of the present invention, the temperature of step (2) is 70 DEG C.
Further improvement of the present invention, the mass concentration of sodium hydroxide solution is 2% in step (3).
Embodiment 4：
The present invention provides a kind of preparation method of chitosan-bentonite composite material, comprises the following steps (1) by bentonite
Muffle kiln roasting 2h is put into, is taken out, cooling, obtains activated bentonite；(2) take chitosan to be dissolved in water, add vinegar thereto
Acid, colloidal liquid is generated, activated bentonite is added in colloidal liquid, obtain that liquid is blended；(3) hydrogen is added into blending liquid
Sodium hydroxide solution, obtain flocculent deposit；(4) flocculent deposit is filtered, washed, drying, obtain chitosan-bentonite composite adsorption
Agent.
Further improvement of the present invention, sintering temperature is 700 DEG C in step (1).
Further improvement of the present invention, the mass ratio of chitosan and activated bentonite is 1 in step (2)：10.
Further improvement of the present invention, it is 95% acetic acid to add 4ml mass concentrations per 100g chitosans in step (2).
Further improvement of the present invention, the temperature of step (2) is 60 DEG C.
Further improvement of the present invention, the mass concentration of sodium hydroxide solution is 2% in step (3).
Claims (6)
- A kind of 1. preparation method of chitosan-bentonite composite material, it is characterised in that：Comprise the following steps (1) by bentonite Muffle kiln roasting 2h is put into, is taken out, cooling, obtains activated bentonite；(2) take chitosan to be dissolved in water, add vinegar thereto Acid, colloidal liquid is generated, activated bentonite is added in colloidal liquid, obtain that liquid is blended；(3) hydrogen is added into blending liquid Sodium hydroxide solution, obtain flocculent deposit；(4) flocculent deposit is filtered, washed, drying, obtain chitosan-bentonite composite adsorption Agent.
- 2. the preparation method of chitosan-bentonite composite material according to claim 1, it is characterised in that：The step (1) Middle sintering temperature is 700~1000 DEG C.
- 3. the preparation method of chitosan-bentonite composite material according to claim 1, it is characterised in that：The step (2) The mass ratio of middle chitosan and activated bentonite is 1：1~15.
- 4. the preparation method of chitosan-bentonite composite material according to claim 1, it is characterised in that：The step (2) In to add 4~8ml mass concentrations per 100g chitosans be 95% acetic acid.
- 5. the preparation method of chitosan-bentonite composite material according to claim 1, it is characterised in that：The step (2) Temperature be 60~80 DEG C.
- 6. the preparation method of chitosan-bentonite composite material according to claim 1, it is characterised in that：The step (3) The mass concentration of middle sodium hydroxide solution is 2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710879276.5A CN107497406A (en) | 2017-09-26 | 2017-09-26 | A kind of preparation method of chitosan bentonite composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710879276.5A CN107497406A (en) | 2017-09-26 | 2017-09-26 | A kind of preparation method of chitosan bentonite composite |
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| Publication Number | Publication Date |
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| CN107497406A true CN107497406A (en) | 2017-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710879276.5A Pending CN107497406A (en) | 2017-09-26 | 2017-09-26 | A kind of preparation method of chitosan bentonite composite |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355624A (en) * | 2018-04-28 | 2018-08-03 | 广东国宇环保科技有限公司 | Based on dolomitic limestone-iron oxide-Nano chitosan composite material of steamed bun group Minerals And Rocks and its preparation and application |
| CN108816185A (en) * | 2018-07-27 | 2018-11-16 | 烟台大学 | A kind of easily separated type clay absorbent and preparation method thereof for removing water pollutant |
| CN109337453A (en) * | 2018-10-24 | 2019-02-15 | 厦门理工学院 | A kind of environmental protection coating material and its preparation method and application |
| CN115231789A (en) * | 2022-08-17 | 2022-10-25 | 东南大学 | Preparation method of printing and dyeing biochemical sludge composite dehydrating agent |
| CN117427618A (en) * | 2023-12-20 | 2024-01-23 | 中国农业大学 | Chitosan modified yellow phosphorus slag-bentonite composite material and preparation method and application thereof |
-
2017
- 2017-09-26 CN CN201710879276.5A patent/CN107497406A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355624A (en) * | 2018-04-28 | 2018-08-03 | 广东国宇环保科技有限公司 | Based on dolomitic limestone-iron oxide-Nano chitosan composite material of steamed bun group Minerals And Rocks and its preparation and application |
| CN108816185A (en) * | 2018-07-27 | 2018-11-16 | 烟台大学 | A kind of easily separated type clay absorbent and preparation method thereof for removing water pollutant |
| CN109337453A (en) * | 2018-10-24 | 2019-02-15 | 厦门理工学院 | A kind of environmental protection coating material and its preparation method and application |
| CN115231789A (en) * | 2022-08-17 | 2022-10-25 | 东南大学 | Preparation method of printing and dyeing biochemical sludge composite dehydrating agent |
| CN117427618A (en) * | 2023-12-20 | 2024-01-23 | 中国农业大学 | Chitosan modified yellow phosphorus slag-bentonite composite material and preparation method and application thereof |
| CN117427618B (en) * | 2023-12-20 | 2024-03-05 | 中国农业大学 | Chitosan modified yellow phosphorus slag-bentonite composite material and preparation method and application thereof |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171222 |