MOF (Metal Organic Framework) material for synergic recycling of organic-inorganic pollutants as well as preparation method and application of MOF material

By preparing MOF materials for the coordinated resource utilization of organic and inorganic pollutants as catalysts, the problems of poor catalyst stability and environmental pollution in the preparation of olefin epoxides in the existing technology are solved, and a highly selective and efficient olefin epoxide preparation process is achieved, which is suitable for the green and environmentally friendly conversion of various olefins.

CN120699266APending Publication Date: 2025-09-26ZHEJIANG UNIV OF TECH
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Patent Information

Application Number
CN202510537172.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2025-09-26

AI Technical Summary

Technical Problem

The existing technology for the preparation of olefin epoxides has problems such as poor catalyst stability, narrow adaptability, and serious environmental pollution. In addition, the oxidant utilization efficiency is low, making it difficult to achieve a high-efficiency epoxide selectivity and a green and environmentally friendly catalytic process.

Method used

MOF materials for the coordinated resource utilization of organic and inorganic pollutants are used as catalysts. Through the reaction of a mixed solution of a specific solvent and a metal salt, MOF materials with high selectivity and activity are prepared. Oxidants are used as oxygen sources to catalyze the oxidation of olefins to produce epoxides under specific conditions.

Benefits of technology

The process achieves highly selective and efficient preparation of olefin epoxides, has good catalyst stability, is green and environmentally friendly, has high oxidant utilization rate, is easy to separate after the reaction and has no secondary pollution, and is suitable for the efficient conversion of a variety of olefins.

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Abstract

The invention discloses an MOF material for synergistically recycling organic-inorganic pollutants, a preparation method and application of the MOF material in olefin oxidation reaction, and the technical scheme is as follows: S1, adding p-formylbenzoic acid and 1, 3-diamino-2-hydroxypropane into a mixed solution, reacting for 15-30 hours at 60-80 DEG C in an Ar atmosphere, removing a solvent, filtering, washing, and drying to obtain the MOF material for synergistically recycling organic-inorganic pollutants. Washing the sample, and performing vacuum drying to obtain a sample I; s2, adding the sample I and ZrCl4 into a solvent, then adding an HCl solution, heating at 100-140 DEG C for 40-50 hours after the sample I and ZrCl4 are completely dissolved, performing centrifugal separation after the reaction is finished, collecting solids, and performing vacuum drying to obtain a sample II; s3, the metal salt solution and deionized water are added to be mixed and oscillated for 20-40 h, after the oscillation is finished, solids are collected in a centrifugal mode, the obtained solids are washed and dried, calcination is conducted for 3-6 h in a tubular furnace at the nitrogen atmosphere of 400-600 DEG C, and the metal-organic framework material is obtained. The MOF material for synergic recycling of organic-inorganic pollutants has higher epoxide selectivity when being used for olefin oxidation, and can be used for efficiently preparing epoxide from olefin.
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Description

Technical Field

[0001] The present invention relates to the technical field of material preparation, and more specifically to the preparation of MOF materials for the coordinated resource utilization of organic and inorganic pollutants and their application in olefin oxidation. Background Art

[0002] Olefin epoxides are important intermediates in organic synthesis, capable of undergoing a variety of chemical reactions. Under acidic or alkaline conditions, epoxy groups readily undergo ring-opening reactions and addition reactions with nucleophiles (such as alcohols, amines, and water), making them a key method for synthesizing a wide range of organic compounds. They can also undergo reduction reactions to produce the corresponding alcohols and react with Grignard reagents to produce alcohols with added carbon chains. Consequently, they are widely used in industrial fields such as coatings, adhesives, and composite materials.

[0003] The main industrial methods for preparing epoxides include the chlorohydrin method, direct oxidation method, and co-oxidation method. The chlorohydrin method is an obsolete technology due to serious corrosion and environmental pollution problems. The direct oxidation method is divided into the hydrogen peroxide method and the oxygen (air) oxidation method. The hydrogen peroxide method has poor stability, inconvenient transportation and storage of hydrogen peroxide, and low safety. The oxygen oxidation method is in the basic research stage and has harsh reaction conditions, and has high requirements on the material and pressure resistance of the reaction equipment. The co-oxidation method (ethylbenzene, isobutane and isopropylbenzene method, etc.) activates the CH bond to prepare organic peroxides, and then oxidizes alkenes to prepare their epoxides, which is more in line with the theme of green chemistry.

[0004] Chinese patent CN104030975A discloses a Mn(III)-Salen catalyst, its preparation method, and application. The preparation method comprises: (1) reacting 5-bromo-3-tert-butyl salicylaldehyde with pyridine-4-boric acid as raw materials to produce a pyridine salicylaldehyde derivative; (2) reacting the pyridine salicylaldehyde derivative with ethylenediamine to synthesize a salen ligand having a pyridine functional group; (3) coordinating a divalent manganese salt with the salen ligand and then oxidizing it. The resulting reaction solution is evaporated to dryness, washed with water, and filtered to obtain the Mn(III)-Salen catalyst. The catalyst for olefin epoxidation prepared by this method is stable to water and air and can catalyze the synthesis of olefin epoxides from styrene, 4-tert-butylstyrene, indene, α-methylstyrene, and the like with high activity and selectivity. However, this method has a limited range of metals and a narrow application range. Summary of the Invention

[0005] The primary purpose of the present invention is to overcome the shortcomings of the prior art and provide a MOF material for the coordinated resource utilization of organic-inorganic pollutants. When used to prepare epoxides, the MOF material has high epoxide selectivity and high catalytic activity, and can efficiently utilize oxidants.

[0006] A further object of the present invention is to provide a method for preparing MOF materials for the coordinated resource utilization of organic and inorganic pollutants.

[0007] Another object of the present invention is to provide an application of MOF materials for the coordinated resource utilization of organic and inorganic pollutants.

[0008] Another object of the present invention is to provide a method for olefin oxidation.

[0009] To this end, the first technical solution provided by the present invention is as follows:

[0010] A method for preparing a MOF material for the coordinated resource utilization of organic and inorganic pollutants comprises the following steps:

[0011] S1. Add p-formylbenzoic acid and 1,3-diamino-2-hydroxypropane to a mixed solution of solvent L1 and solvent L2, react at 60-80°C under an Ar atmosphere for 15-30 hours, remove the solvent, wash the sample, and vacuum dry it to obtain sample I;

[0012] The mass ratio of the aldehyde benzoic acid to 1,3-diamino-2-hydroxypropane is (3-6): (1-2);

[0013] S2. Sample I and ZrCl4 were added to solvent L3, and then HCl solution was added. After complete dissolution, the mixture was heated in an oil bath at 100-140°C for 40-50 h. After completion of the reaction, the solid was collected by centrifugation and vacuum dried for 10-15 h to obtain Sample II.

[0014] The mass ratio of the sample I to ZrCl4 is (1-2):1;

[0015] S3. The metal salt solution is added to deionized water and mixed and shaken for 20 to 40 hours. After the end, the solid is collected by centrifugation, washed and dried, and calcined in a tube furnace at 400 to 600 ° C in a nitrogen atmosphere for 3 to 6 hours to obtain a solid powder. The obtained solid powder is the MOF-derived catalyst for heavy metal adsorption;

[0016] The mass ratio of the metal salt in the metal salt solution to the sample II is: 1:(20-30).

[0017] Furthermore, in the preparation method of the above-mentioned MOF material for the coordinated resource utilization of organic-inorganic pollutants, in step S1, the L1 solvent is selected from one of dichloromethane, anhydrous ethanol, ethyl acetate, and acetone; the L2 solvent is selected from one of methanol, propanol, acetonitrile, and N,N-dimethylformamide.

[0018] Furthermore, in the above-mentioned method for preparing MOF materials for the coordinated resource utilization of organic-inorganic pollutants, the solvent L3 described in S2 is DMF.

[0019] Furthermore, in the above-mentioned method for preparing MOF materials for the coordinated resource utilization of organic-inorganic pollutants, in step S3, the metal salt is selected from one of ruthenium trichloride, cobalt chloride, gold trichloride, platinum tetrachloride, and manganese chloride.

[0020] Furthermore, in the preparation method of the above-mentioned MOF material for the coordinated resource utilization of organic-inorganic pollutants, the concentration of the metal salt solution is 1000 ppm.

[0021] The second technical solution provided by the present invention is a MOF material for the coordinated resource utilization of organic-inorganic pollutants, which is obtained by the preparation method described in the first technical solution.

[0022] The third technical solution provided by the present invention is the application of the above-mentioned MOF material for the coordinated resource utilization of organic-inorganic pollutants as an olefin oxidation catalyst.

[0023] The third technical solution provided by the present invention is a method for olefin oxidation, comprising the following steps:

[0024] The MOF material for the coordinated resource utilization of organic and inorganic pollutants described in the third technical solution is added to an organic solvent, an oxidant is used as an oxygen source, an olefin is added, and the reaction is carried out at 80 to 120° C. for 1 to 8 hours to obtain an epoxide;

[0025] The liquid-to-solid ratio of the organic solvent and the MOF material for the coordinated resource utilization of organic-inorganic pollutants is 1: (1-4) mL / mg;

[0026] The liquid-to-solid ratio of the oxidant and the MOF material for the coordinated resource recovery of organic-inorganic pollutants is (1-4): 10 mL / mg;

[0027] The mass ratio of the MOF material for the coordinated resource utilization of olefins and organic-inorganic pollutants is (24-48):1.

[0028] Furthermore, in the above-mentioned method for olefin oxidation, the organic solvent is selected from one of acetonitrile, ethyl acetate, dichloromethane, benzonitrile, dioxane, and ethylbenzene.

[0029] Furthermore, in the above-mentioned method for olefin oxidation, the olefin is selected from one of styrene, 1-hexene, 1-octene, cyclohexene, cyclooctene, and 1-pentene; and the oxidant is selected from one of tert-butyl hydroperoxide, hydrogen peroxide, oxygen, cumene hydroperoxide, and ethylbenzene hydroperoxide.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The present invention provides a MOF material for the coordinated resource utilization of organic and inorganic pollutants. The MOF material is used as a catalyst for the preparation of epoxides from olefins. It has high epoxide selectivity and oxidant utilization rate and can be used for the efficient preparation of epoxides from olefins.

[0032] 2. The MOF material for the collaborative resource utilization of organic and inorganic pollutants of the present invention is non-toxic, green and environmentally friendly, has stable performance, is easy to separate after the reaction, can be reused, and has no secondary pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a SEM image of the MOF material for the coordinated resource utilization of organic-inorganic pollutants prepared in Example 3 of the present invention;

[0034] Figure 2 This is the XPS spectrum of the MOF material for the coordinated resource utilization of organic-inorganic pollutants prepared in Example 3 of the present invention. DETAILED DESCRIPTION

[0035] In order to more clearly and completely describe the technical solution of the present invention, the present invention is further described in detail through specific embodiments below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Various changes can be made within the scope of the rights of the present invention.

[0036] Example 1

[0037] A method for preparing a MOF material for the coordinated resource utilization of organic and inorganic pollutants comprises the following steps:

[0038] S1. 2 g of p-formylbenzoic acid and 1 g of 1,3-diamino-2-hydroxypropane were added to a mixture of dichloromethane and methanol. The mixture was reacted at 60°C under an Ar atmosphere for 15 h. After removing the solvent, the sample was washed three times with methanol and dried in a vacuum oven to obtain sample I.

[0039] S2. 1 g of sample I and 0.5 g of ZrCl4 were added to DMF, followed by the addition of 0.1 mL of 0.1 mol / L HCl solution. After complete dissolution, the mixture was heated in an oil bath at 100°C for 40 h. After completion of the reaction, the solid was centrifuged and washed twice with DMF and once with anhydrous ethanol. The solid was then dried under vacuum for 10 h to obtain sample II.

[0040] S3. Prepare a 1000ppm ruthenium trichloride solution prepared by mixing ruthenium trichloride with deionized water. Take 20mL of the prepared ruthenium trichloride and 0.5g of sample II, add them to 70mL of deionized water, mix and shake for 20h, and centrifuge after the mixture is mixed. The obtained solid is washed with deionized water and ethanol and dried. The solid is calcined in a tubular furnace at 400℃ under nitrogen atmosphere for 3h to obtain a solid powder. The obtained solid powder is the MOF material for the coordinated resource utilization of organic-inorganic pollutants.

[0041] Example 2

[0042] A method for preparing a MOF material for the coordinated resource utilization of organic and inorganic pollutants comprises the following steps:

[0043] S1. 4 g of p-formylbenzoic acid and 1.5 g of 1,3-diamino-2-hydroxypropane were added to a mixed solution of ethyl acetate and propanol. The mixture was reacted at 65°C under an Ar atmosphere for 20 h. After removing the solvent, the sample was washed three times with methanol and dried in a vacuum oven to obtain sample I.

[0044] S2. 1.5 g of sample I and 1 g of ZrCl4 were added to DMF, followed by the addition of 0.3 mL of 0.1 mol / L HCl solution. After complete dissolution, the mixture was heated in an oil bath at 115°C for 45 h. After completion of the reaction, the solid was centrifuged and washed twice with DMF and once with anhydrous ethanol. The solid was then dried under vacuum for 10 h to obtain sample II.

[0045] S3. Prepare a 1000ppm cobalt chloride solution prepared by cobalt chloride and deionized water. Take 20mL of the prepared cobalt chloride and 0.5g of sample II, add them to 75mL of deionized water, mix and shake for 25h, and then centrifuge. The obtained solid is washed with deionized water and ethanol and dried. The solid is calcined in a tubular furnace at 450℃ under nitrogen atmosphere for 3.5h to obtain a solid powder. The obtained solid powder is the MOF material for the coordinated resource utilization of organic-inorganic pollutants.

[0046] Example 3

[0047] A method for preparing a MOF material for the coordinated resource utilization of organic and inorganic pollutants comprises the following steps:

[0048] S1. 6 g of p-formylbenzoic acid and 2 g of 1,3-diamino-2-hydroxypropane were added to a mixed solution of anhydrous ethanol and N,N-dimethylformamide. The mixture was reacted at 70°C under an Ar atmosphere for 24 h. After removing the solvent, the sample was washed three times with methanol and dried in a vacuum oven to obtain sample I.

[0049] S2. 2.5 g of sample I and 2 g of ZrCl4 were added to DMF, followed by the addition of 0.5 mL of 0.1 mol / L HCl solution. After complete dissolution, the mixture was heated in an oil bath at 130°C for 48 h. After completion of the reaction, the solid was centrifuged and washed twice with DMF and once with anhydrous ethanol. The solid was then dried under vacuum for 10 h to obtain sample II.

[0050] S3. Prepare a 1000 ppm gold trichloride solution of gold trichloride and deionized water, take 20 mL of the prepared gold trichloride and 0.5 g of sample II, add them to 80 mL of deionized water, mix and shake for 30 hours, and then centrifuge. The resulting solid is washed with deionized water and ethanol and dried, and calcined in a tube furnace at 500°C under a nitrogen atmosphere for 4 hours to obtain a solid powder. The resulting solid powder is a MOF material for the coordinated resource utilization of organic-inorganic pollutants; its SEM image is shown in Figure 1 ,pass Figure 1 It can be seen that the Au / C catalyst microstructure presents densely packed spherical particles. The particle surface appears relatively smooth, but also has slight bumps and depressions. The overall structure presents a fluffy and porous appearance. Figure 2 It can be seen that the XPS spectrum of UiO-66-FDP shows characteristic peaks of C1s, O 1s, Zr 3d and N1s, while Au / C retains these characteristic peaks while adding Au 4f peaks, confirming that the preparation of Au / C catalyst is successful.

[0051] Example 4

[0052] A method for preparing a MOF material for the coordinated resource utilization of organic and inorganic pollutants comprises the following steps:

[0053] S1. 7 g of p-formylbenzoic acid and 2.5 g of 1,3-diamino-2-hydroxypropane were added to a mixed solution of acetone and acetonitrile. The mixture was reacted at 75°C under an Ar atmosphere for 27 h. After removing the solvent, the sample was washed three times with methanol and dried in a vacuum oven to obtain sample I.

[0054] S2. 3 g of sample I and 2.5 g of ZrCl4 were added to DMF, followed by the addition of 0.7 mL of 0.1 mol / L HCl solution. After complete dissolution, the mixture was heated in an oil bath at 135°C for 49 h. After completion of the reaction, the solid was centrifuged and washed twice with DMF and once with anhydrous ethanol. The solid was then dried under vacuum for 10 h to obtain sample II.

[0055] S3. Prepare a 1000ppm platinum tetrachloride solution prepared by platinum tetrachloride and deionized water, take 20mL of the prepared platinum tetrachloride and 0.5g of sample II, add them to 90mL of deionized water, mix and shake for 35h, and then centrifuge. The obtained solid is washed with deionized water and ethanol and dried, and calcined in a tubular furnace at 550℃ under nitrogen atmosphere for 5h to obtain a solid powder. The obtained solid powder is the MOF material for the coordinated resource utilization of organic-inorganic pollutants.

[0056] Example 5

[0057] The preparation method of MOF materials for the coordinated resource utilization of organic and inorganic pollutants comprises the following steps:

[0058] S1. 8 g of p-formylbenzoic acid and 3 g of 1,3-diamino-2-hydroxypropane were added to a mixed solution of dichloromethane and N,N-dimethylformamide, and the mixture was reacted at 80°C under an Ar atmosphere for 30 h. After removing the solvent, the sample was washed three times with methanol and dried in a vacuum drying oven to obtain sample I;

[0059] S2. 3.5 g of sample I and 3 g of ZrCl4 were added to DMF, followed by the addition of 0.8 mL of 0.1 mol / L HCl solution. After complete dissolution, the mixture was heated in an oil bath at 140°C for 50 h. After completion of the reaction, the solid was centrifuged and washed twice with DMF and once with anhydrous ethanol. The solid was then dried under vacuum for 10 h to obtain sample II.

[0060] S3. Prepare a 1000 ppm manganese chloride solution prepared by mixing manganese chloride with deionized water. Take 20 mL of the prepared manganese chloride and 0.5 g of sample II and add them to 100 mL of deionized water, mix and shake for 40 hours, and then centrifuge. The resulting solid is washed with deionized water and ethanol and dried. The solid is calcined in a tube furnace at 600°C under a nitrogen atmosphere for 6 hours to obtain a solid powder. The obtained solid powder is the MOF material for the coordinated resource utilization of organic-inorganic pollutants.

[0061] Application Example 1

[0062] A method for preparing cyclohexene oxide comprises the following steps:

[0063] 20 mg of the catalyst prepared in Example 1 (MOF material for the collaborative resource utilization of organic-inorganic pollutants) was added to a 35 mL pressure tube, 10 mL of ethyl acetate was added as a solvent, 2 mL of hydrogen peroxide was added as an oxygen source, 0.6 g of cyclohexene was added, and biphenyl was used as an internal standard. After stirring and reacting at 80 ° C for 1 hour, the mixture was placed in a low-temperature reactor for online sampling and gas chromatography analysis of the product. The internal standard method was used to quantify the product. The resulting solution after the reaction can be placed in a centrifuge tube and centrifuged in a centrifuge at a speed of 12000 r / min. It was washed with deionized water and then dried in an oven at 80 ° C. The resulting solid can be reused according to the above steps.

[0064] The results showed that the cyclohexene conversion rate was 36% and the selectivity of the product 1,2-epoxycyclohexane was 78%, indicating that the MOF material for the coordinated resource utilization of organic-inorganic pollutants of the present invention can be used to efficiently prepare 1,2-epoxycyclohexane from cyclohexene.

[0065] Application Example 2

[0066] A method for preparing epoxide comprises the following steps:

[0067] 25 mg of the catalyst prepared in Example 2 (MOF material for the collaborative resource utilization of organic-inorganic pollutants) was added to a 35 mL pressure tube, 10 mL of dichloromethane was added as a solvent, 1.5 mL of tert-butyl hydroperoxide was added as an oxygen source, 1.0 g of 1-hexene was added, and biphenyl was used as an internal standard. After stirring and reacting at 100 ° C for 3 hours, the mixture was placed in a low-temperature reactor for online sampling and gas chromatography analysis of the product. The internal standard method was used to quantify the product. After the reaction, the resulting solution can be placed in a centrifuge tube and centrifuged in a centrifuge at a speed of 11000 r / min, washed with deionized water, and then dried in an oven at 70 ° C. The resulting solid can be reused according to the above steps.

[0068] The results showed that the conversion rate of 1-hexene was 26% and the selectivity of the product 1,2-epoxyhexane was 82%, indicating that the MOF material for the coordinated resource utilization of organic-inorganic pollutants of the present invention can be used to efficiently prepare 1,2-epoxyhexane from 1-hexene.

[0069] Application Example 3

[0070] A method for preparing styrene oxide comprises the following steps:

[0071] 15 mg of the catalyst prepared in Example 3 (MOF material for the collaborative resource utilization of organic-inorganic pollutants) was added to a 35 mL pressure tube, 10 mL of acetonitrile was added as a solvent, 2 mL of isopropylbenzene hydroperoxide was added as an oxygen source, 0.4 g of styrene was added, and biphenyl was used as an internal standard. After stirring and reacting at 90 ° C for 2 h, the mixture was placed in a low-temperature reactor for online sampling and gas chromatography analysis of the product. The internal standard method was used to quantify the product. After the reaction, the resulting solution was placed in a centrifuge tube and centrifuged in a centrifuge at a speed of 10,000 r / min. It was washed with deionized water and then dried in an oven at 70 ° C. The resulting solid can be reused according to the above steps.

[0072] The results showed that the styrene conversion rate was 31% and the product selectivity was 93% (including 74.8% styrene oxide selectivity and 18.2% benzaldehyde selectivity). This indicates that the MOF material for the coordinated resource utilization of organic-inorganic pollutants of the present invention can be used to efficiently prepare styrene oxide from styrene.

[0073] Application Example 4

[0074] A method for preparing pentyl oxide comprises the following steps:

[0075] 30 mg of the catalyst prepared in Example 4 (MOF material for the collaborative resource utilization of organic-inorganic pollutants) was added to a 35 mL pressure tube, 10 mL of ethylbenzene was added as a solvent, 2.5 mL of ethylbenzene hydroperoxide was added as an oxygen source, 0.6 g of 1-pentene was added, and biphenyl was used as an internal standard. After stirring and reacting at 110 ° C for 4 hours, the mixture was placed in a low-temperature reactor for online sampling and gas chromatography analysis of the product. The internal standard method was used to quantify the product. The resulting solution after the reaction can be placed in a centrifuge tube and centrifuged in a centrifuge at a speed of 10,000 r / min, washed with deionized water, and then dried in an oven at 70 ° C. The resulting solid can be reused according to the above steps.

[0076] The results showed that the conversion rate of 1-pentene was 25%, and the selectivity of the product 1,2-epoxypentane was 79%, indicating that the MOF material for the coordinated resource utilization of organic-inorganic pollutants of the present invention can be used to efficiently prepare 1,2-epoxypentane from 1-pentene.

[0077] Application Example 10

[0078] A method for preparing cyclooctane oxide comprises the following steps:

[0079] 20 mg of the catalyst prepared in Example 5 (MOF material for the collaborative resource utilization of organic-inorganic pollutants) was added to a 35 mL pressure tube, 10 mL of acetonitrile was added as a solvent, 2 mL of hydrogen peroxide was added as an oxygen source, 0.8 g of cyclooctene was added, and biphenyl was used as an internal standard. After stirring and reacting at 120 ° C for 2 h, the mixture was placed in a low-temperature reactor for online sampling and gas chromatography analysis of the product. The internal standard method was used to quantify the product. The resulting solution after the reaction can be placed in a centrifuge tube and centrifuged in a centrifuge at a speed of 10,000 r / min. It was washed with deionized water and then dried in an oven at 60 ° C. The resulting solid can be reused according to the above steps.

[0080] The results showed that the conversion rate of cyclooctene was 29% and the selectivity of the product 1,2-epoxycyclooctane was 73%, indicating that the MOF material for the coordinated resource utilization of organic-inorganic pollutants of the present invention can be used to efficiently prepare 1,2-epoxycyclooctane from cyclooctene.

Claims

1. A method for preparing a MOF material for the coordinated resource utilization of organic and inorganic pollutants, characterized in that: The steps include: S1. Add p-formylbenzoic acid and 1,3-diamino-2-hydroxypropane to a mixed solution of solvent L1 and solvent L2, react at 60-80°C under an Ar atmosphere for 15-30 hours, remove the solvent, wash the sample, and vacuum dry it to obtain sample I; The mass ratio of the aldehyde benzoic acid to 1,3-diamino-2-hydroxypropane is (3-6): (1-2); S2. Sample I and ZrCl4 were added to solvent L3, and then HCl solution was added. After complete dissolution, the mixture was heated in an oil bath at 100-140°C for 40-50 h. After completion of the reaction, the solid was collected by centrifugation and vacuum dried for 10-15 h to obtain Sample II. The mass ratio of the sample I to ZrCl4 is (1-2):1; S3. The metal salt solution is added to deionized water and mixed and shaken for 20 to 40 hours. After the end, the solid is collected by centrifugation, washed and dried, and calcined in a tube furnace at 400 to 600 ° C in a nitrogen atmosphere for 3 to 6 hours to obtain a solid powder. The obtained solid powder is the MOF-derived catalyst for heavy metal adsorption; The mass ratio of the metal salt in the metal salt solution to the sample II is: 1:(20-30).

2. The method for preparing the MOF material for the coordinated resource utilization of organic and inorganic pollutants according to claim 1, characterized in that: In step S1, the solvent L1 is selected from one of dichloromethane, anhydrous ethanol, ethyl acetate, and acetone; the solvent L2 is selected from one of methanol, propanol, acetonitrile, and N,N-dimethylformamide.

3. The method for preparing the MOF material for the coordinated resource utilization of organic and inorganic pollutants according to claim 1, characterized in that: The solvent L3 described in S2 is DMF.

4. The method for preparing the MOF material for the coordinated resource utilization of organic and inorganic pollutants according to claim 2, characterized in that: In step S3, the metal salt is selected from one of ruthenium trichloride, cobalt chloride, gold trichloride, platinum tetrachloride, and manganese chloride.

5. The method for preparing the MOF material for the coordinated resource utilization of organic and inorganic pollutants as claimed in claim 2, characterized in that: The concentration of the metal salt solution was 1000 ppm.

6. A MOF material for the coordinated resource utilization of organic and inorganic pollutants, characterized in that: The method is obtained by any one of claims 1 to 5.

7. Use of the MOF material for the coordinated resource utilization of organic and inorganic pollutants according to claim 1 as a catalyst in olefin oxidation.

8. A method for olefin oxidation, characterized in that: The steps include: The MOF material for the coordinated resource utilization of organic and inorganic pollutants according to claim 6 is added to an organic solvent, an oxidant is used as an oxygen source, an olefin is added, and the reaction is carried out at 80 to 120° C. for 1 to 8 hours to obtain an epoxide; The liquid-to-solid ratio of the organic solvent and the MOF material for the coordinated resource utilization of organic-inorganic pollutants is 1: (1-4) mL / mg; The liquid-to-solid ratio of the oxidant and the MOF material for the coordinated resource recovery of organic-inorganic pollutants is (1-4): 10 mL / mg; The mass ratio of the MOF material for the coordinated resource utilization of olefins and organic-inorganic pollutants is (24-48):

1.

9. The method for olefin oxidation according to claim 8, characterized in that: The organic solvent is selected from one of acetonitrile, ethyl acetate, dichloromethane, benzonitrile, dioxane and ethylbenzene.

10. The method for olefin oxidation according to claim 8, characterized in that: The olefin is selected from one of styrene, 1-hexene, 1-octene, cyclohexene, cyclooctene, and 1-pentene; and the oxidant is selected from one of tert-butyl hydroperoxide, hydrogen peroxide, oxygen, cumene hydroperoxide, and ethylbenzene hydroperoxide.

Citation Information

Patent Citations

  • Mn(III)-Salen catalyst as well as preparation method and application thereof

    CN104030975A