CN113648977A - Modified zeolite-like imidazole framework adsorption material and preparation method and application thereof - Google Patents
Modified zeolite-like imidazole framework adsorption material and preparation method and application thereof Download PDFInfo
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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
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/223—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material containing metals, e.g. organo-metallic compounds, coordination complexes
- B01J20/226—Coordination polymers, e.g. metal-organic frameworks [MOF], zeolitic imidazolate frameworks [ZIF]
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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
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/36—Organic compounds containing halogen
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/40—Organic compounds containing sulfur
Abstract
The invention discloses a modified zeolite-like imidazole framework adsorbing material as well as a preparation method and application thereof, belonging to the field of application of environmental protection technologies. The method comprises the following steps: respectively preparing 2-methylimidazole aqueous solution and zinc nitrate hexahydrate aqueous solution; adding sodium dodecyl sulfate into the 2-methylimidazole water solution, and stirring and mixing uniformly; adding sodium hydroxide into the mixed solution, and uniformly stirring; adding zinc nitrate hexahydrate aqueous solution into the mixed solution, and stirring for reaction; centrifuging the reactant, removing supernatant, washing with water and methanol respectively, and drying to obtain the final product. The preparation method is simple in preparation process, reaction conditions are easy to control, and the prepared modified zeolite imidazole framework adsorption material has large specific surface area and physical and chemical stability.
Description
Technical Field
The invention relates to a modified zeolite-like imidazole framework adsorption material, a preparation method and application thereof, belonging to the field of application of environmental protection technology.
Background
Zeolite-like imidazole frameworks (ZIFs) possess the thermal and chemical stability characteristic of zeolites, ultra-high surface area, high crystallinity, and unimodal micropores. Meanwhile, ZIFs have the characteristics of diversity and controllability through the characteristic that metal ions and imidazole or imidazole derivative ligands are mixed under different conditions, and can be specially customized to different scenes for use.
The removal of environmental dyes by adsorption is a well established technique. At present, the domestic research on dye adsorbents mainly comprises activated carbon, resin, biological adsorbents, gel adsorbents and the like. The activated carbon has the defects of developed pores, uniform distribution, large specific surface area, good adsorption effect, high economic cost, weak reutilization property and the like, and the expansion of the application market is limited; the resin is a novel material with good adsorption performance, but the mechanism research is incomplete, the adsorption performance of different types of resin is different, and the elution is difficult; the biological adsorbent has the advantages of low cost, high efficiency, biodegradability, environmental friendliness and the like, but the research progress of the biological adsorbent is gradually advanced, the adsorption mechanism is not clear, and the effective biological adsorbent needs to meet a plurality of conditions, so that the practical application is difficult to carry out. And ZIFs have the advantages of ultra-high specific surface area, physical and chemical stability, simple and easily-controlled synthesis and the like, so that ZIFs have good prospects in the application of adsorbing dyes in the environment.
Disclosure of Invention
The invention provides a preparation method of an adsorbent capable of selectively adsorbing dyes with different charged properties, and aims to provide an adsorbent which is selectively adsorbed, high in adsorbability and good in biocompatibility.
A preparation method of a modified zeolite-like imidazole framework adsorption material comprises the following steps:
(1) dissolving 2-methylimidazole in water;
(2) dissolving zinc nitrate hexahydrate in water;
(3) adding sodium dodecyl sulfate into the 2-methylimidazole water solution, and stirring and mixing uniformly;
(4) adding sodium hydroxide into the mixed solution obtained in the step (3), and uniformly stirring;
(5) adding zinc nitrate hexahydrate aqueous solution into the mixed solution obtained in the step (4), and stirring for reaction;
(6) and centrifuging the reactant, removing supernatant, washing with water and methanol respectively, and drying to obtain a solid, namely the modified zeolite imidazole framework adsorption material.
Further, in the above technical scheme, the water is deionized water.
Further, in the above technical scheme, the ratio of 2-methylimidazole to water in step (1) is 0.5-1 g: 10-30 mL.
Further, in the above technical scheme, the ratio of zinc nitrate hexahydrate to water in step (2) is 0.1-0.4 g: 2-10 mL.
Further, in the above technical scheme, zinc nitrate hexahydrate: 2-methylimidazole: sodium hydroxide: the molar ratio of the sodium dodecyl sulfate is 1: 8-35: 0-30: 0.1-1.
Further, in the technical scheme, the stirring reaction in the step (5) is 20-30 ℃, and the stirring reaction is carried out for 6-24 hours.
The modified zeolite-like imidazole framework adsorbing material is prepared according to the preparation method.
Application of modified zeolite-like imidazole framework adsorption material in adsorption of dye in environment
Further, in the above technical solution, the dye in the environment includes: rhodamine B, methylene blue and methyl blue.
Specifically, the preparation method of the modified zeolite-like imidazole framework adsorption material comprises the following steps: (1) dissolving 0.5-1g of 2-methylimidazole in 10-30mL of deionized water; (2) dissolving 0.1-0.4g of zinc nitrate hexahydrate in 2-10mL of deionized water; (3) adding 0.0288-0.288g of Sodium Dodecyl Sulfate (SDS) into the 2-methylimidazole solution, and uniformly mixing on a magnetic stirrer at 300-600 rpm; (4) adding 0.8-1.5g of sodium hydroxide into the solution in the step (3) and uniformly mixing; (5) slowly adding the solution in the step (2) into the solution in the step (3) and reacting for 6-24h at the temperature of 20-30 ℃ while maintaining the stirring speed; (6) the reacted mixture was centrifuged with a centrifuge of 5000-.
The preparation method is simple in preparation process, reaction conditions are easy to control, and the prepared modified zeolite imidazole framework adsorption material has large specific surface area and physical and chemical stability.
Drawings
FIG. 1 shows a zeolitic imidazole-like framework adsorbent material prepared according to comparative example 1 of the present invention.
FIG. 2 is a zeolitic imidazole-like framework adsorbent material prepared according to comparative example 2 of the present invention.
Fig. 3 shows a modified zeolite-like imidazole framework adsorbent material prepared in example 1 of the present invention.
Fig. 4 shows a modified zeolite-like imidazole framework adsorbent material prepared in example 2 of the present invention.
Fig. 5 shows a modified zeolite-like imidazole framework adsorbent prepared in example 3 of the present invention.
Detailed Description
The following non-limiting examples will allow one of ordinary skill in the art to more fully understand the present invention, but are not intended to limit the invention in any way.
Comparative example 1
A preparation method of zeolite imidazole framework-like adsorption material comprises the following steps: 2-methylimidazole: the molar ratio of sodium hydroxide is 1:10:0, 2-methylimidazole and zinc nitrate hexahydrate are respectively dissolved in deionized water with the volume ratio of 6.7:1, after dissolution, the zinc nitrate hexahydrate solution is added into the 2-methylimidazole solution, and the reaction is carried out for 24 hours under a magnetic stirrer of 500 rpm. After the reaction is finished, centrifuging at 9000rpm to remove supernatant, washing with water and methanol for 3 times, and drying in a 60 ℃ oven to obtain white powder, namely the zeolite-like imidazole framework material. As shown in figure 1, the prepared material has a flaky L-shaped structure, but does not show obvious adsorption performance on the dye.
Comparative example 2
A preparation method of zeolite imidazole framework-like adsorption material comprises the following steps: 2-methylimidazole: the molar ratio of sodium hydroxide is 1:10:30, 2-methylimidazole and zinc nitrate hexahydrate are respectively dissolved in deionized water with the volume ratio of 6.7:1, sodium hydroxide is added into the 2-methylimidazole solution until the solution is cooled, and finally zinc nitrate hexahydrate solution is added and reacted for 24 hours under a magnetic stirrer of 500 rpm. After the reaction is finished, centrifuging at 9000rpm to remove supernatant, washing with water and methanol for 3 times, and drying in a 60 ℃ oven to obtain white powder, namely the zeolite-like imidazole framework material. As shown in FIG. 2, the obtained material had a dodecahedral structure and a particle size of about 1.7 μm. But do not exhibit significant adsorption properties for the dye.
Example 1
A preparation method of a modified zeolite-like imidazole framework adsorption material comprises the following steps: 2-methylimidazole: sodium hydroxide: the molar ratio of SDS (sodium dodecyl sulfate) is 1:10:30:0.1, 2-methylimidazole and zinc nitrate hexahydrate are respectively dissolved in deionized water with the volume ratio of 6.7:1, SDS is added into the 2-methylimidazole solution, sodium hydroxide is added after uniform mixing until the solution is cooled, and finally the zinc nitrate hexahydrate solution is added and reacted for 24 hours under a magnetic stirrer of 500 rpm. After the reaction is finished, centrifuging at 9000rpm to remove supernatant, washing with water and methanol for 3 times, and drying in a 60 ℃ oven to obtain light yellow powder, namely the modified zeolite imidazole framework adsorption material. As shown in FIG. 3, the particle size of the prepared adsorbent was 10-20 nm. The removal rate of the modified zeolite imidazole framework adsorbing material on 0.2 g/L5 mL rhodamine B is 43.55%, the removal rate on 0.2 g/L5 mL methylene blue is 22.57%, and the removal rate on 0.2 g/L5 mL methyl blue is 92.72%.
Example 2
A preparation method of a modified zeolite-like imidazole framework adsorption material comprises the following steps: 2-methylimidazole: sodium hydroxide: the molar ratio of SDS is 1:10:30:0.5, 2-methylimidazole and zinc nitrate hexahydrate are respectively dissolved in deionized water with the volume ratio of 6.7:1, SDS is added into the 2-methylimidazole solution, sodium hydroxide is added after uniform mixing until the solution is cooled, and finally, zinc nitrate hexahydrate solution is added and reacted for 24 hours under a magnetic stirrer of 500 rpm. After the reaction is finished, centrifuging at 9000rpm to remove supernatant, washing with water and methanol for 3 times, and drying in a 60 ℃ oven to obtain light yellow powder, namely the modified zeolite imidazole framework adsorption material. As shown in FIG. 4, the particle size of the obtained adsorbent was 5 to 10 nm. The modified zeolite imidazole framework adsorbent obtained had a removal rate of 85.28% for 5mL of rhodamine B at 0.2g/L, a removal rate of 90.10% for 5mL of methylene blue at 0.2g/L, and a removal rate of 23.84% for 5mL of methyl blue at 0.2 g/L.
Example 3
A preparation method of a modified zeolite-like imidazole framework adsorption material comprises the following steps: 2-methylimidazole: sodium hydroxide: the molar ratio of SDS is 1:10:30:1, 2-methylimidazole and zinc nitrate hexahydrate are respectively dissolved in deionized water with the volume ratio of 6.7:1, SDS is added into the 2-methylimidazole solution, sodium hydroxide is added after uniform mixing until the solution is cooled, and finally zinc nitrate hexahydrate solution is added and reacted for 24 hours under a magnetic stirrer of 500 rpm. After the reaction is finished, centrifuging at 9000rpm to remove supernatant, washing with water and methanol for 3 times, and drying in a 60 ℃ oven to obtain light yellow powder, namely the modified zeolite imidazole framework adsorption material. As shown in FIG. 5, the particle size of the obtained adsorbent was 2 to 10 nm. The removal rate of the modified zeolite imidazole framework adsorbent to 0.2g/L of 5mL rhodamine B is 88.39%, the removal rate to 0.2g/L of 5mL methylene blue is 95.30%, and the removal rate to 0.2g/L of 5mL methyl blue is 27.07%.
Claims (9)
1. A preparation method of a modified zeolite-like imidazole framework adsorption material is characterized by comprising the following steps:
(1) dissolving 2-methylimidazole in water;
(2) dissolving zinc nitrate hexahydrate in water;
(3) adding sodium dodecyl sulfate into the 2-methylimidazole water solution, and stirring and mixing uniformly;
(4) adding sodium hydroxide into the mixed solution obtained in the step (3), and uniformly stirring;
(5) adding zinc nitrate hexahydrate aqueous solution into the mixed solution obtained in the step (4), and stirring for reaction;
(6) and centrifuging the reactant, removing supernatant, washing with water and methanol respectively, and drying to obtain a solid, namely the modified zeolite imidazole framework adsorption material.
2. The method of claim 1, wherein the water is deionized water.
3. The method according to claim 1, wherein the ratio of 2-methylimidazole to water in step (1) is 0.5 to 1 g: 10-30 mL.
4. The method according to claim 1, wherein the ratio of zinc nitrate hexahydrate to water in step (2) is 0.1 to 0.4 g: 2-10 mL.
5. The method of claim 1, wherein the ratio of zinc nitrate hexahydrate: 2-methylimidazole: sodium hydroxide: the molar ratio of the sodium dodecyl sulfate is 1: 8-35: 0-30: 0.1-1.
6. The preparation method according to claim 1, wherein the stirring reaction in the step (5) is carried out at 20-30 ℃ for 6-24 h.
7. The modified zeolite-like imidazole framework adsorbing material prepared by the preparation method of any one of claims 1 to 6.
8. Use of the modified zeolitic imidazole-like framework adsorbent material according to claim 7 for adsorbing dyes in an environment
9. The use according to claim 8, wherein the environmentally friendly dye comprises: rhodamine B, methylene blue and methyl blue.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112979979A (en) * | 2021-02-23 | 2021-06-18 | 云南省水利水电科学研究院 | Preparation method and application of modified ZIF-8 material for adsorbing and removing micro-polluted mercury in water body |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267736A (en) * | 2011-07-05 | 2011-12-07 | 太原理工大学 | Method for decolorizing and adsorbing dye in water by using zeolite-like imidazate framework material |
| CN105985362A (en) * | 2015-02-14 | 2016-10-05 | 李亚丰 | Method for preparing zeolite imidazate framework material |
| WO2017078609A1 (en) * | 2015-11-05 | 2017-05-11 | Su Holding Ab | One-pot synthesis of metal-organic frameworks with encapsulated target-molecule and their use |
| CN110092916A (en) * | 2019-04-16 | 2019-08-06 | 华南理工大学 | A method of control class zeolitic imidazolate framework material ZIF-8 pattern |
| CN110105580A (en) * | 2019-04-16 | 2019-08-09 | 华南理工大学 | A kind of multi-stage porous class zeolitic imidazolate framework material and preparation method thereof |
| CN110387048A (en) * | 2019-08-19 | 2019-10-29 | 南京邮电大学 | A kind of metal organic frame two-dimensional nano piece and preparation method thereof |
-
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- 2021-09-10 CN CN202111062355.XA patent/CN113648977A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267736A (en) * | 2011-07-05 | 2011-12-07 | 太原理工大学 | Method for decolorizing and adsorbing dye in water by using zeolite-like imidazate framework material |
| CN105985362A (en) * | 2015-02-14 | 2016-10-05 | 李亚丰 | Method for preparing zeolite imidazate framework material |
| WO2017078609A1 (en) * | 2015-11-05 | 2017-05-11 | Su Holding Ab | One-pot synthesis of metal-organic frameworks with encapsulated target-molecule and their use |
| CN110092916A (en) * | 2019-04-16 | 2019-08-06 | 华南理工大学 | A method of control class zeolitic imidazolate framework material ZIF-8 pattern |
| CN110105580A (en) * | 2019-04-16 | 2019-08-09 | 华南理工大学 | A kind of multi-stage porous class zeolitic imidazolate framework material and preparation method thereof |
| CN110387048A (en) * | 2019-08-19 | 2019-10-29 | 南京邮电大学 | A kind of metal organic frame two-dimensional nano piece and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112979979A (en) * | 2021-02-23 | 2021-06-18 | 云南省水利水电科学研究院 | Preparation method and application of modified ZIF-8 material for adsorbing and removing micro-polluted mercury in water body |
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Application publication date: 20211116 |