CN114797797A - Preparation method of hollow carbon nanocage hydrogel adsorption material with anion recognition function - Google Patents
Preparation method of hollow carbon nanocage hydrogel adsorption material with anion recognition function Download PDFInfo
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- 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
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- 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
- B01J20/26—Synthetic macromolecular compounds
- B01J20/265—Synthetic macromolecular compounds modified or post-treated polymers
- B01J20/267—Cross-linked polymers
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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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28047—Gels
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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
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
Abstract
The invention discloses a preparation method of a hollow carbon nanocage hydrogel adsorption material with an anion recognition function, and belongs to the field of water treatment materials. The preparation method comprises the following steps: reacting zinc salt and phthalic acid monomer in polyalcohol to obtain an organic nanocage precursor; dispersing the organic nanocage precursor in a dopamine monomer aqueous solution, and carbonizing in inert gas to obtain a hollow carbon nanocage; dispersing the hollow carbon nanocages in a microemulsion consisting of water, cyclohexane and a surfactant, adding branched polyethyleneimine, a lactic acid monomer, a glycolic acid monomer and polyethylene glycol, and fully stirring for reaction to obtain hollow carbon nanocage hydrogel particles; dispersing the hollow carbon nano cage hydrogel particles in water, adding an identification agent and a cross-linking agent, and uniformly stirring to obtain the hollow carbon nano cage hydrogel with the anion identification function. The prepared hollow carbon nanocage hydrogel has good adsorption effect on chloride ions, sulfate ions and nitrate ions, and has good regeneration performance.
Description
Technical Field
The invention belongs to the field of water treatment materials, and particularly relates to a preparation method of a hollow carbon nanocage hydrogel adsorption material with an anion recognition function.
Background
Nowadays, with the continuous development of industrial and social life, the problem of water pollution is increasingly intensified, and besides the pollution of heavy metals, residual dyes and the like, polluted water also contains a large amount of anions, which can cause eutrophication of water bodies and corrosion of building structures.
At present, the water pollution treatment mode is various, including active carbon and ion exchange resin. At present, mineral adsorption materials and solid waste adsorbents such as slag, coal slag, fly ash and powder obtained by burning plant straws are also adopted, so that the cost is low, but secondary pollution is often caused. The hollow carbon sphere is a novel carbon micro-nano material and has the advantages of low density, good thermal stability, high chemical stability, large specific surface area, excellent conductivity, good biocompatibility and the like. The hollow carbon ball has developed pore structure and great surface area, has strong physical adsorption and chemical adsorption functions and can be used as an adsorption material.
The carbon material with a hollow structure has obvious advantages for metal ion and dye adsorption, but the effect of adsorbing anions is not excellent. Therefore, there are no advantages to the specific treatment sites when the emphasis is placed on treating various types of anionic pollutants. It is therefore necessary to select a specific adsorbent material having the ability to recognize and adsorb anions to perform a specific function.
Patent CN202010422877.5 describes an activation regeneration method of a chloride ion adsorbent of calcined aluminum magnesium hydrotalcite, which is obtained by calcining aluminum magnesium hydrotalcite as a chloride ion adsorbent and using sodium hydroxide for regeneration. The chloride ion adsorbent needs high-temperature roasting, a large amount of sodium hydroxide needs to be consumed during regeneration, secondary pollution is easy to generate, the cost is high, and the practicability is limited.
Patent CN202011623932.3 describes an inorganic heavy metal ion adsorbing material and a preparation method thereof, wherein an inorganic heavy metal ion adsorbing material is obtained by fermenting an organic fermentation material and combining an inorganic zeolite carrier. However, biological fermentation has certain uncontrollable property, and the effect of the inorganic zeolite carrier is easily influenced by the fermentation microorganism.
Patent CN202111230462.9 describes a preparation method of a magnetic hectorite composite polymer heavy metal ion adsorbent, which is prepared by copolymerizing KH570 modified magnetic nanoparticles, hectorite, polyvinyl pyrrolidone and functional monomers. Can be widely applied to the adsorption and separation of heavy metal ions and the pollution treatment of the heavy metal ions. But the handling capacity for anions is not clear.
As described above, the anion adsorbent is expensive in material production cost and complicated in process. Therefore, there is an urgent need to develop a method for preparing an anion-adsorbing material with high efficiency and economy.
Disclosure of Invention
The invention aims to solve the technical problems, provides a preparation method of a hollow carbon nanocage hydrogel adsorption material with an anion recognition function, provides the hollow carbon nanocage hydrogel adsorption material obtained by the preparation method, and provides application of the hollow carbon nanocage hydrogel adsorption material in water pollution treatment.
The purpose of the invention is realized by the following technical scheme:
a preparation method of a hollow carbon nanocage hydrogel adsorption material with an anion recognition function comprises the following steps:
(1) dissolving zinc salt and phthalic acid monomers in a polyalcohol solvent, and reacting for 1-3 hours at 100-180 ℃ to obtain an organic nanocage precursor. Wherein the mass ratio of the zinc salt, the phthalic acid monomer and the polyalcohol solvent is 10-20: 20-30: 100.
(2) And dispersing the organic nano cage precursor into a solution mixed with a dopamine monomer and water, and reacting for 1-2 hours to obtain the modified nano cage precursor. And carbonizing the modified nanocage precursor in inert gas at 500-800 ℃ for 2-4 h to obtain the hollow carbon nanocage. Wherein the mass ratio of the organic nanocage precursor to the dopamine monomer to the water is 10-20: 3-5: 100.
(3) Dispersing the hollow carbon nanocages in a microemulsion consisting of water, cyclohexane and a surfactant, adding branched polyethyleneimine, and uniformly mixing to obtain emulsion slurry. And then adding a lactic acid monomer, a glycolic acid monomer and polyethylene glycol, fully stirring, and reacting at 40-60 ℃ for 2-4 hours to obtain the hollow carbon nanocage hydrogel particles. Wherein the mass ratio of the hollow carbon nanocages, water, cyclohexane, a surfactant, branched polyethyleneimine, a lactic acid monomer, a glycolic acid monomer and polyethylene glycol is 10-20: 100: 30-50: 1-3: 4-6: 2-3: 3-5.
(4) Dispersing hollow carbon nano cage hydrogel particles in water, adding an identification agent and a cross-linking agent, and uniformly stirring to obtain the hollow carbon nano cage hydrogel with the anion identification function. Wherein the mass ratio of the hollow carbon nanocage hydrogel particles, the water, the recognition agent and the cross-linking agent is 20-30: 100: 5-8: 1-2.
In the step (1), the zinc salt is preferably one of zinc sulfate or zinc nitrate; the phthalic acid monomer is preferably one of terephthalic acid, phthalic acid or isophthalic acid; the polyalcohol solvent is preferably one of diethylene glycol or triethylene glycol.
In the step (2), the dopamine monomer is preferably one of dopamine hydrochloride or 6-hydroxy dopamine hydrochloride.
In the step (3), the surfactant is preferably one of polyvinyl alcohol or polyethylene glycol p-isooctyl phenyl ether; the lactic acid monomer is preferably one of L-lactic acid or D-lactic acid; the glycolic acid monomer is preferably one of glycolic acid or benzilic acid.
In the step (4), the identifier is preferably one of dithiobiuret or semicarbazide; the cross-linking agent is preferably one of sodium thiosulfate or glutaraldehyde.
A hollow carbon nanocage hydrogel adsorption material with an anion recognition function is obtained through the preparation method.
The hollow carbon nanocage hydrogel adsorption material is applied to treatment of anion wastewater.
The regeneration method of the hollow carbon nanocage hydrogel adsorption material comprises the following steps: and stirring the anion-adsorbing material in deionized water at 50-60 ℃ for 1-2 hours, and centrifuging to obtain the regenerated adsorbing material.
The anion includes chloride, sulfate, nitrate, etc.
The material provided by the invention mainly aims at adsorbing anions in a water body, and has important significance in the aspect of water treatment. Meanwhile, the material can be recycled by simple warm water soaking, and the effect is still good.
The invention has the following advantages and beneficial effects:
(1) the hollow carbon nanocages have extremely high ion storage capacity and contribute to optimizing anion adsorption effect.
(2) By the gel structure, the structural characteristics of the hollow carbon nanocages can be fully utilized. And moreover, the gel structure with the environmental response characteristic needs lower energy consumption in the regeneration process of the subsequent adsorption material, is beneficial to reducing carbon emission, and is green and environment-friendly.
(3) The functional group with the anion recognition function is modified on the surface of the adsorbent, so that the adsorbent is beneficial to selectively adsorbing anions, particularly chloride ions, sulfate ions, nitrate ions and the like, and the function of the adsorbent is optimized.
Detailed Description
The present invention is further described with reference to the following specific examples, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and they are included in the scope of the present invention.
Example 1
(1) Adding 10 parts by weight of zinc nitrate, 20 parts by weight of terephthalic acid and 100 parts by weight of diethylene glycol into a reaction kettle, reacting for 1 hour at 150 ℃, washing with deionized water, then centrifuging, washing with ethanol, centrifuging, and finally preparing the organic nano cage precursor.
(2) Dispersing 10 parts by weight of an organic nanocage precursor into a solution mixed with 3 parts by weight of dopamine hydrochloride and 100 parts by weight of water, and reacting for 1 hour to obtain a modified nanocage precursor. Carbonizing at 500 deg.C for 2h in inert gas, washing with hydrochloric acid, and drying to obtain hollow carbon nanocages.
(3) Dispersing 10 parts by weight of hollow carbon nanocages in a microemulsion consisting of 100 parts by weight of water, 30 parts by weight of cyclohexane and 1 part by weight of polyvinyl alcohol, then adding 4 parts by weight of branched polyethyleneimine, and uniformly mixing to obtain emulsion slurry. Then, 4 parts by weight of D-lactic acid, 2 parts by weight of glycolic acid and 3 parts by weight of polyethylene glycol were added, sufficiently stirred, and reacted at 50 ℃ for 2 hours to obtain hollow carbon nanocage hydrogel particles.
(4) Dispersing 20 parts by weight of hollow carbon nanocage hydrogel particles in 100 parts by weight of water, adding 5 parts by weight of dithiobiuret and 1 part by weight of sodium thiosulfate, uniformly stirring, centrifuging, washing and drying to finally prepare the hollow carbon nanocage hydrogel with the anion recognition function.
Example 2
(1) Adding 20 parts by weight of zinc nitrate, 30 parts by weight of phthalic acid and 100 parts by weight of triethylene glycol into a reaction kettle, reacting for 3 hours at 120 ℃, washing with deionized water, then centrifuging, washing with ethanol and centrifuging to prepare the organic nanocage precursor.
(2) Dispersing 20 parts by weight of an organic nanocage precursor into a solution mixed with 5 parts by weight of 6-hydroxydopamine hydrochloride and 100 parts by weight of water, and reacting for 2 hours to obtain a modified nanocage precursor. Carbonizing at 600 deg.C for 3h in inert gas, washing with hydrochloric acid, and drying to obtain hollow carbon nanocages.
(3) Dispersing 20 parts by weight of hollow carbon nanocages in a microemulsion consisting of 100 parts by weight of water, 50 parts by weight of cyclohexane and 1 part by weight of polyethylene glycol p-isooctyl phenyl ether, then adding 6 parts by weight of branched polyethyleneimine, and uniformly mixing to obtain emulsion slurry. Then 6 parts by weight of L-lactic acid, 3 parts by weight of benzilic acid and 5 parts by weight of polyethylene glycol are added, fully stirred and reacted for 4 hours at 50 ℃ to obtain the hollow carbon nanocage hydrogel particles.
(4) Dispersing 30 parts by weight of hollow carbon nanocage hydrogel particles in 100 parts by weight of water, adding 8 parts by weight of semicarbazone and 2 parts by weight of glutaraldehyde, uniformly stirring, centrifuging, washing and drying to finally prepare the hollow carbon nanocage hydrogel with the anion recognition function.
Example 3
(1) Adding 15 parts by weight of zinc sulfate, 25 parts by weight of isophthalic acid and 100 parts by weight of diethylene glycol into a reaction kettle, reacting for 2 hours at 140 ℃, washing with deionized water, then performing centrifugation, washing with ethanol and centrifuging to prepare the organic nano cage precursor.
(2) Dispersing 15 parts by weight of the organic nanocage precursor into a solution mixed with 4 parts by weight of dopamine hydrochloride and 100 parts by weight of water, and reacting for 1.5 hours to obtain the modified nanocage precursor. Carbonizing at 700 deg.C for 4h in inert gas, washing with hydrochloric acid, and drying to obtain hollow carbon nanocages.
(3) Dispersing 15 parts by weight of hollow carbon nanocages in a microemulsion consisting of 100 parts by weight of water, 40 parts by weight of cyclohexane and 2 parts by weight of polyethylene glycol p-isooctyl phenyl ether, then adding 5 parts by weight of branched polyethyleneimine, and uniformly mixing to obtain emulsion slurry. Then, 5 parts by weight of D-lactic acid, 2.5 parts by weight of glycolic acid and 4 parts by weight of polyethylene glycol were added thereto, and the mixture was sufficiently stirred and reacted at 50 ℃ for 3 hours to obtain hollow carbon nanocage hydrogel particles.
(4) Dispersing 25 parts by weight of hollow carbon nanocage hydrogel particles in 100 parts by weight of water, adding 6 parts by weight of dithiobiuret and 1.5 parts by weight of sodium thiosulfate, uniformly stirring, centrifuging, washing and drying to finally prepare the hollow carbon nanocage hydrogel with the anion recognition function.
Example 4
(1) Adding 10 parts by weight of zinc sulfate, 30 parts by weight of terephthalic acid and 100 parts by weight of triethylene glycol into a reaction kettle, reacting for 3 hours at 160 ℃, washing with deionized water, then centrifuging, washing with ethanol and centrifuging to prepare the organic nano cage precursor.
(2) Dispersing 20 parts by weight of an organic nanocage precursor into a solution mixed with 3 parts by weight of 6-hydroxydopamine hydrochloride and 100 parts by weight of water, and reacting for 1 hour to obtain a modified nanocage precursor. Carbonizing at 800 deg.C for 2h in inert gas, washing with hydrochloric acid, and drying to obtain hollow carbon nanocages.
(3) Dispersing 10 parts by weight of hollow carbon nanocages in a microemulsion consisting of 100 parts by weight of water, 35 parts by weight of cyclohexane and 1 part by weight of polyvinyl alcohol, then adding 4 parts by weight of branched polyethyleneimine, and uniformly mixing to obtain emulsion slurry. Then 6 parts by weight of L-lactic acid, 3 parts by weight of benzilic acid and 5 parts by weight of polyethylene glycol are added, fully stirred and reacted for 3 hours at 50 ℃ to obtain the hollow carbon nanocage hydrogel particles.
(4) Dispersing 20 parts by weight of hollow carbon nanocage hydrogel particles in 100 parts by weight of water, adding 5 parts by weight of semicarbazone and 2 parts by weight of glutaraldehyde, uniformly stirring, centrifuging, washing and drying to finally prepare the hollow carbon nanocage hydrogel with the anion recognition function.
Example 5
(1) Adding 10 parts by weight of zinc nitrate, 20 parts by weight of terephthalic acid and 100 parts by weight of diethylene glycol into a reaction kettle, reacting for 1 hour at 180 ℃, washing with deionized water, then centrifuging, washing with ethanol and centrifuging to prepare the organic nanocage precursor.
(2) Dispersing 10 parts by weight of an organic nanocage precursor into a solution mixed with 5 parts by weight of dopamine hydrochloride and 100 parts by weight of water, and reacting for 2 hours to obtain a modified nanocage precursor. Carbonizing at 500 deg.C for 3h in inert gas, washing with hydrochloric acid, and drying to obtain hollow carbon nanocages.
(3) Dispersing 20 parts by weight of hollow carbon nanocages in a microemulsion consisting of 100 parts by weight of water, 45 parts by weight of cyclohexane and 3 parts by weight of polyethylene glycol p-isooctyl phenyl ether, then adding 6 parts by weight of branched polyethyleneimine, and uniformly mixing to obtain emulsion slurry. Then, 6 parts by weight of D-lactic acid, 3 parts by weight of glycolic acid and 3 parts by weight of polyethylene glycol were added, sufficiently stirred, and reacted at 50 ℃ for 2 hours to obtain hollow carbon nanocage hydrogel particles.
(4) Dispersing 20 parts by weight of hollow carbon nanocage hydrogel particles in 100 parts by weight of water, adding 7 parts by weight of dithiobiuret and 1 part by weight of glutaraldehyde, uniformly stirring, centrifuging, washing and drying to finally prepare the hollow carbon nanocage hydrogel with the anion recognition function.
Control group 1
Unlike example 1, no D-lactic acid was added.
Control group 2
In contrast to example 1, no semicarbazide and no glutaraldehyde were added.
And (3) testing:
adding the prepared hollow carbon nano cage hydrogel with the anion recognition function (powder with the size less than 200 meshes) into a prepared aqueous solution of chloride ions, sulfate ions and nitrate ions with the concentration of 100mg/L, adding 1g of the hollow carbon nano cage hydrogel with the anion recognition function, mixing and stirring, adjusting the pH value to 6, and treating for 60min at the temperature of 25 ℃.
Stirring the hollow carbon nanocage hydrogel adsorbing anions in deionized water at 50 ℃ for 2 hours, centrifuging to obtain regenerated hollow carbon nanocage hydrogel, and adsorbing anions again according to the method.
The experimental results are as follows:
through experimental comparison, the best adsorption effect of the example 1 on chloride ions, sulfate ions and nitrate ions is found, and the good effect is still achieved after regeneration. The synthetic hollow carbon nanocage hydrogel with the anion recognition function has important significance in the aspect of anion adsorption. The comparative example shows that lactic acid monomer is an important monomer for forming hydrogel polymer, and the adsorption effect on ions is also adversely affected in the absence of lactic acid monomer. The recognition agent and the cross-linking agent play a decisive role in the adsorption effect of anions and are indispensable components in the material.
Claims (8)
1. A preparation method of a hollow carbon nanocage hydrogel adsorption material with an anion recognition function is characterized by comprising the following steps: the method comprises the following steps:
(1) dissolving zinc salt and phthalic acid monomers in a polyalcohol solvent, and reacting for 1-3 hours at 100-180 ℃ to obtain an organic nano cage precursor;
wherein the mass ratio of the zinc salt, the phthalic acid monomer and the polyalcohol solvent is 10-20: 20-30: 100;
(2) dispersing the organic nano cage precursor into a solution mixed with a dopamine monomer and water, and reacting for 1-2 hours to obtain a modified nano cage precursor; carbonizing the modified nanocage precursor in inert gas at 500-800 ℃ for 2-4 h to obtain a hollow carbon nanocage;
wherein the mass ratio of the organic nanocage precursor to the dopamine monomer to the water is 10-20: 3-5: 100;
(3) dispersing the hollow carbon nanocages in a microemulsion consisting of water, cyclohexane and a surfactant, adding branched polyethyleneimine, and uniformly mixing to obtain emulsion slurry; then adding a lactic acid monomer, a glycolic acid monomer and polyethylene glycol, fully stirring, and reacting at 40-60 ℃ for 2-4 hours to obtain hollow carbon nanocage hydrogel particles;
wherein the mass ratio of the hollow carbon nanocages, water, cyclohexane, a surfactant, branched polyethyleneimine, a lactic acid monomer, a glycolic acid monomer and polyethylene glycol is 10-20: 100: 30-50: 1-3: 4-6: 2-3: 3-5.
(4) Dispersing hollow carbon nanocage hydrogel particles in water, adding an identification agent and a cross-linking agent, and uniformly stirring to obtain hollow carbon nanocage hydrogel with an anion identification function;
wherein the mass ratio of the hollow carbon nanocage hydrogel particles, the water, the recognition agent and the cross-linking agent is 20-30: 100: 5-8: 1-2.
2. The method of claim 1, wherein: in the step (1), the zinc salt is one of zinc sulfate or zinc nitrate; the phthalic acid monomer is one of terephthalic acid, phthalic acid or isophthalic acid; the polyalcohol solvent is one of diethylene glycol or triethylene glycol.
3. The method of claim 1, wherein: in the step (2), the dopamine monomer is one of dopamine hydrochloride or 6-hydroxy dopamine hydrochloride.
4. The method of claim 1, wherein: in the step (3), the surfactant is one of polyvinyl alcohol or polyethylene glycol p-isooctyl phenyl ether; the lactic acid monomer is one of L-lactic acid or D-lactic acid; the glycolic acid monomer is one of glycolic acid or benzilic acid.
5. The method of claim 1, wherein: in the step (4), the identifier is one of dithiobiuret or semicarbazide; the cross-linking agent is one of sodium thiosulfate or glutaraldehyde.
6. A hollow carbon nanocage hydrogel adsorption material with an anion recognition function is characterized in that: obtained by the production method according to any one of claims 1 to 5.
7. Use of the hollow carbon nanocage hydrogel adsorption material of claim 6 for the treatment of anionic wastewater.
8. The method for regenerating a hollow carbon nanocage hydrogel adsorption material as claimed in claim 6, wherein: the method comprises the following steps: and stirring the anion-adsorbing material in deionized water at 50-60 ℃ for 1-2 hours, and centrifuging to obtain the regenerated adsorbing material.
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| CN1785801A (en) * | 2005-11-10 | 2006-06-14 | 上海交通大学 | Method of large quantity preparing hollow carbon nano-cage |
| CN110272035A (en) * | 2019-06-28 | 2019-09-24 | 江西理工大学 | A kind of nano cages and the application of the method and its preparation preparing nano cages with metal ion catalysis organic ligand |
| CN110975812A (en) * | 2019-12-18 | 2020-04-10 | 西北农林科技大学 | Tea saponin hollow carbon spheres, preparation method thereof and application thereof in heavy metal adsorption |
| CN112079346A (en) * | 2020-10-09 | 2020-12-15 | 济南大学 | Metal organic framework in-situ activated hollow carbon sphere and preparation method and application thereof |
| CN113522287A (en) * | 2021-06-24 | 2021-10-22 | 中科合成油技术有限公司 | Carbon-supported metal catalyst with hierarchical pore structure, preparation method and application thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785801A (en) * | 2005-11-10 | 2006-06-14 | 上海交通大学 | Method of large quantity preparing hollow carbon nano-cage |
| CN110272035A (en) * | 2019-06-28 | 2019-09-24 | 江西理工大学 | A kind of nano cages and the application of the method and its preparation preparing nano cages with metal ion catalysis organic ligand |
| CN110975812A (en) * | 2019-12-18 | 2020-04-10 | 西北农林科技大学 | Tea saponin hollow carbon spheres, preparation method thereof and application thereof in heavy metal adsorption |
| CN112079346A (en) * | 2020-10-09 | 2020-12-15 | 济南大学 | Metal organic framework in-situ activated hollow carbon sphere and preparation method and application thereof |
| CN113522287A (en) * | 2021-06-24 | 2021-10-22 | 中科合成油技术有限公司 | Carbon-supported metal catalyst with hierarchical pore structure, preparation method and application thereof |
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