CN115106127A - Preparation method of ternary MOF (metal organic framework) derived zinc-titanium nanocomposite material capable of photocatalytic degradation of tetracycline - Google Patents
Preparation method of ternary MOF (metal organic framework) derived zinc-titanium nanocomposite material capable of photocatalytic degradation of tetracycline Download PDFInfo
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- 239000012621 metal-organic framework Substances 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000004098 Tetracycline Substances 0.000 title claims abstract description 18
- 229960002180 tetracycline Drugs 0.000 title claims abstract description 18
- 229930101283 tetracycline Natural products 0.000 title claims abstract description 18
- 235000019364 tetracycline Nutrition 0.000 title claims abstract description 18
- 150000003522 tetracyclines Chemical class 0.000 title claims abstract description 18
- YJVLWFXZVBOFRZ-UHFFFAOYSA-N titanium zinc Chemical compound [Ti].[Zn] YJVLWFXZVBOFRZ-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000002114 nanocomposite Substances 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 title claims abstract description 15
- 238000013033 photocatalytic degradation reaction Methods 0.000 title claims abstract description 12
- LXBGSDVWAMZHDD-UHFFFAOYSA-N 2-methyl-1h-imidazole Chemical compound CC1=NC=CN1 LXBGSDVWAMZHDD-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000001354 calcination Methods 0.000 claims abstract description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 42
- 239000006185 dispersion Substances 0.000 claims description 28
- 238000001035 drying Methods 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000000593 degrading effect Effects 0.000 abstract description 5
- 230000001699 photocatalysis Effects 0.000 abstract description 5
- 238000007146 photocatalysis Methods 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 2
- 239000002086 nanomaterial Substances 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 2
- YSWBFLWKAIRHEI-UHFFFAOYSA-N 4,5-dimethyl-1h-imidazole Chemical compound CC=1N=CNC=1C YSWBFLWKAIRHEI-UHFFFAOYSA-N 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- 239000013154 zeolitic imidazolate framework-8 Substances 0.000 abstract 1
- MFLKDEMTKSVIBK-UHFFFAOYSA-N zinc;2-methylimidazol-3-ide Chemical compound [Zn+2].CC1=NC=C[N-]1.CC1=NC=C[N-]1 MFLKDEMTKSVIBK-UHFFFAOYSA-N 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003242 anti bacterial agent Substances 0.000 description 3
- 229940088710 antibiotic agent Drugs 0.000 description 3
- 230000003115 biocidal effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010059866 Drug resistance Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 229910002370 SrTiO3 Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/1691—Coordination polymers, e.g. metal-organic frameworks [MOF]
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/18—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms
- B01J31/1805—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms the ligands containing nitrogen
- B01J31/181—Cyclic ligands, including e.g. non-condensed polycyclic ligands, comprising at least one complexing nitrogen atom as ring member, e.g. pyridine
- B01J31/1815—Cyclic ligands, including e.g. non-condensed polycyclic ligands, comprising at least one complexing nitrogen atom as ring member, e.g. pyridine with more than one complexing nitrogen atom, e.g. bipyridyl, 2-aminopyridine
-
- B01J35/39—
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- 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
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/20—Complexes comprising metals of Group II (IIA or IIB) as the central metal
- B01J2531/26—Zinc
-
- 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
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/84—Metals of the iron group
- B01J2531/845—Cobalt
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Abstract
The invention discloses a preparation method of a ternary MOF (metal organic framework) derived zinc-titanium nanocomposite material capable of degrading tetracycline through photocatalysis, which comprises the step of preparing MH (metal organic framework) by a conventional method 2 -MIL-125, followed by dimethylimidazole and Co (NO) 3 ) 2 ·6H 2 O as a raw material in NH 2 ZIF-67 formation from the external surface of MIL-125, NH formation 2 -MIL-125@ ZIF-67 binary MOF structure followed by 2-methylimidazole Zn (NO) 3 ) 2 ·6H 2 O as starting material in NH 2 Production of ZIF-8 on the surface of-MIL-125 @ ZIF-67 to form NH 2 -MIL-125@ ZIF-67@ ZIF-8, and finally converting NH 2 ‑MIL‑125@ ZIF-67@ ZIF-8 calcining to obtain a ternary MOF-derived zinc-titanium composite nano material; the material prepared by the invention can be used for photocatalytic degradation of tetracycline, is simple to prepare, has low cost, and is suitable for large-area popularization and application.
Description
Technical Field
The invention relates to the technical field of pollutant treatment, in particular to a preparation method of a ternary MOF (metal organic framework) derived zinc-titanium nanocomposite material capable of degrading tetracycline through photocatalysis.
Background
With the rapid development of human society, the environmental pollution of the earth is increasingly serious, and the environmental pollution becomes a difficult problem which is urgently needed to be solved by a plurality of countries. Among them, the problem of antibiotic residues in the environment has attracted a great deal of attention from many scholars due to the large-area use of antibiotics. Many remain antibiotics and get into the water after, still can stay in the middle of waste water with prototype or metabolite, have serious harm to the existence of the animals and plants in aqueous, very easily destroy the ecological balance in the water, produce the microorganism of drug resistance easily, including it is difficult by the degradation in the water, through the circulation of water, get into the human body through the drinking water, have had very big threat to human health in long-term accumulation.
Tetracycline is a typical antibiotic and is used in a wide range of applications. Photocatalysis is a green and efficient method, and the photocatalysis is used for degrading antibiotics, particularly tetracycline, and is widely regarded by researchers. For example: the invention discloses a material photocatalytic degradation tetracycline based on high-specific-surface ordered large-mesoporous ferric oxide, which has the application number of 201910881396.8; liu oneself power, etc. invented a graphite phase-based carbon nitride photocatalyst for degrading tetracycline, with application number of 202011164226.7; cao Li et al invented Ag-SrTiO3 nano material capable of high-efficiency photocatalytic degradation of tetracycline, with application number 201810065654.0.
Based on the technical background, the invention discloses a preparation method of a functional nano composite material, in particular to a preparation method of a ternary MOF (metal organic framework) derived zinc-titanium nano composite material capable of degrading tetracycline through photocatalysis, and related technologies are not reported.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provides a preparation method of a ternary MOF (metal organic framework) derived zinc-titanium nanocomposite material capable of photocatalytic degradation of tetracycline.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: a preparation method of a ternary MOF-derived zinc-titanium nanocomposite material capable of photocatalytic degradation of tetracycline comprises the following preparation steps:
(1) preparation of NH Using prior art methods 2 -MIL-125, and dispersed in methanol to make 20mg/mL NH 2 -MIL-125 dispersion for use;
(2) taking NH prepared in the step (1) 2 10-50mL of MIL-125 dispersion, with 500mL of 80mM 2-methylimidazole solution and 300mL of 25mM Co (NO) 3 ) 2 ·6H 2 And mixing the O solution under stirring, reacting at room temperature for 4 hours, centrifuging and collecting a product, and drying overnight to obtain a binary MOF structure: NH (NH) 2 -MIL-125@ ZIF-67, converting NH 2 -MIL-125@ ZIF-67 dispersed in methanol to form 36mg/mL NH 2 -MIL-125@ ZIF-67 dispersion;
(3) taking NH prepared in the step (2) 2 10-30mL of MIL-125@ ZIF-67 dispersion, with 150mL of a 25mM 2-methylimidazole solution and 250mL of 25mM Zn (NO) 3 ) 2 ·6H 2 And mixing the O solution under stirring, reacting at room temperature for 4 hours, centrifuging and collecting a product, and drying overnight to obtain a ternary MOF structure: NH (NH) 2 NH 2 -MIL-125@ZIF-67@ZIF-8；
(4) NH obtained in the step (3) 2 Calcining MIL-125@ ZIF-67@ ZIF-8 at 300 ℃ for 4h at the heating rate of 2 ℃/min to obtain the ternary MOF derived zinc-titanium nanocomposite.
The invention has the beneficial effects that:
the material prepared by the invention can be used for photocatalytic degradation of tetracycline, is simple to prepare, has low cost and is suitable for large-area popularization and application.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not limit the invention.
FIG. 1 is an IR spectrum of a product obtained in example 2 of the present invention, from which it can be seen that the material has characteristic peaks of functional groups;
FIG. 2 shows the photocatalytic degradation of tetracycline by the product of example 2 of the present invention.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, preferred embodiments of which are illustrated in the accompanying drawings, wherein the drawings are provided for the purpose of visually supplementing the description in the specification and so forth, and which are not intended to limit the scope of the invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
Referring to fig. 1, a preferred embodiment of the present invention is a preparation method of a ternary MOF-derived zinc-titanium nanocomposite material capable of photocatalytic degradation of tetracycline, comprising the following preparation steps:
(1) preparation of NH Using prior art methods 2 -MIL-125, and dispersed in methanol to make 20mg/mL NH 2 -MIL-125 dispersion for use;
(2) taking NH prepared in the step (1) 2 10-50mL of MIL-125 dispersion, with 500mL of 80mM 2-methylimidazole solution and 300mL of 25mM Co (NO) 3 ) 2 ·6H 2 And mixing the O solution under stirring, reacting at room temperature for 4 hours, centrifuging and collecting a product, and drying overnight to obtain a binary MOF structure: NH 2 -MIL-125@ ZIF-67, converting NH 2 -M IL-125@ ZIF-67 in methanol to form 36mg/mL NH 2 -MIL-125@ ZIF-67 dispersion;
(3) taking NH prepared in the step (2) 2 10-30mL of MIL-125@ ZIF-67 dispersion, with 150mL of a 25mM 2-methylimidazole solution and 250mL of 25mM Zn (NO) 3 ) 2 ·6H 2 The solution of O is mixed under stirring,reacting for 4h at room temperature, centrifuging and collecting a product, and drying overnight to obtain a ternary MOF structure: NH (NH) 2 -MIL-125@ZIF-67@ZIF-8；
(4) NH obtained in the step (3) 2 Calcining MIL-125@ ZIF-67@ ZIF-8 at 300 ℃ for 4 hours at the heating rate of 2 ℃/min to obtain the ternary MOF-derived zinc-titanium nanocomposite.
The technical solution of the present invention is described in detail below with reference to specific embodiments of the present invention. However, the scope of the present invention is not limited to the following specific examples.
Detailed description of the preferred embodiment 1
(1) Preparation of NH Using prior art methods 2 -MIL-125, and dispersed in methanol to make 20mg/mL NH 2 -MIL-125 dispersion for use;
(2) taking NH prepared in the step (1) 2 10mL of MIL-125 dispersion, with 500mL of 80mM 2-methylimidazole solution and 300mL of 25mM Co (NO) 3 ) 2 ·6H 2 And mixing the O solution under stirring, reacting at room temperature for 4 hours, centrifuging and collecting a product, and drying overnight to obtain a binary MOF structure: NH (NH) 2 -MIL-125@ ZIF-67, converting NH 2 -MIL-125@ ZIF-67 dispersed in methanol to form 36mg/mL NH 2 -MIL-125@ ZIF-67 dispersion;
(3) taking NH prepared in the step (2) 2 10mL of MIL-125@ ZIF-67 dispersion, with 150mL of a 25mM 2-methylimidazole solution and 250mL of 25mM Zn (NO) 3 ) 2 ·6H 2 And mixing the O solution under stirring, reacting at room temperature for 4 hours, centrifuging and collecting a product, and drying overnight to obtain a ternary MOF structure: NH (NH) 2 -MIL-125@ZIF-67@ZIF-8；
(4) NH obtained in the step (3) 2 Calcining MIL-125@ ZIF-67@ ZIF-8 at 300 ℃ for 4h at the heating rate of 2 ℃/min to obtain the ternary MOF derived zinc-titanium nanocomposite.
Specific example 2
(1) Preparation of NH Using prior art methods 2 -MIL-125, and dispersed in methanol to make 20mg/mL NH 2 -MIL-125 dispersion for use;
(2) taking NH prepared in the step (1) 2 -MIL-130mL of 25 dispersion, 500mL of 80mM 2-methylimidazole solution and 300mL of 25mM Co (NO) 3 ) 2 ·6H 2 And mixing the O solution under stirring, reacting at room temperature for 4 hours, centrifuging and collecting a product, and drying overnight to obtain a binary MOF structure: NH (NH) 2 -MIL-125@ ZIF-67, dispersed in methanol to form 36mg/mL NH 2 -MIL-125@ ZIF-67 dispersion;
(3) taking NH prepared in the step (2) 2 10mL of MIL-125@ ZIF-67 dispersion, with 150mL of a 25mM 2-methylimidazole solution and 250mL of 25mM Zn (NO) 3 ) 2 ·6H 2 And mixing the O solution under stirring, reacting at room temperature for 4h, centrifuging and collecting a product, and drying overnight to obtain a ternary MOF structure: NH (NH) 2 -MIL-125@ZIF-67@ZIF-8；
(4) Taking NH obtained in the step (3) 2 Calcining MIL-125@ ZIF-67@ ZIF-8 at 300 ℃ for 4 hours at the heating rate of 2 ℃/min to obtain the ternary MOF-derived zinc-titanium nanocomposite.
Specific example 3
(1) Preparation of NH Using prior art methods 2 -MIL-125 and dispersed in methanol to make 20mg/mL NH 2 -MIL-125 dispersion for use;
(2) taking NH prepared in the step (1) 2 40mL of MIL-125 dispersion, with 500mL of 80mM 2-methylimidazole solution and 300mL of 25mM Co (NO) 3 ) 2 ·6H 2 And mixing the O solution under stirring, reacting at room temperature for 4 hours, centrifuging and collecting a product, and drying overnight to obtain a binary MOF structure: NH 2 -MIL-125@ ZIF-67, dispersed in methanol to form 36mg/mLNH 2 -a dispersion of MIL-125@ ZIF-67;
(3) taking NH prepared in the step (2) 2 20mL of MIL-125@ ZIF-67 dispersion, with 150mL of a 25mM 2-methylimidazole solution and 250mL of 25mM Zn (NO) 3 ) 2 ·6H 2 And mixing the O solution under stirring, reacting at room temperature for 4h, centrifuging and collecting a product, and drying overnight to obtain a ternary MOF structure: NH (NH) 2 -MIL-125@ZIF-67@ZIF-8；
(4) NH obtained in the step (3) 2 Calcining MIL-125@ ZIF-67@ ZIF-8 at 300 ℃ for 4h at the heating rate of 2 ℃/min to obtain the ternary MOF-derived zinc-titanium nano-particlesA composite material.
Specific example 4
(1) Preparation of NH Using prior art methods 2 -MIL-125, and dispersed in methanol to make 20mg/mL NH 2 -MIL-125 dispersion is ready for use;
(2) taking NH prepared in the step (1) 2 50mL of MIL-125 dispersion, with 500mL of 80mM 2-methylimidazole solution and 300mL of 25mM Co (NO) 3 ) 2 And mixing 6H2O solution under stirring, reacting at room temperature for 4H, centrifuging to collect the product, and drying overnight to obtain the binary MOF structure: NH (NH) 2 -MIL-125@ ZIF-67, dispersed in methanol to form 36mg/mL NH 2 -MIL-125@ ZIF-67 dispersion;
(3) taking NH prepared in the step (2) 2 30mL of MIL-125@ ZIF-67 dispersion, with 150mL of a 25mM 2-methylimidazole solution and 250mL of 25mM Zn (NO) 3 ) 2 ·6H 2 And mixing the O solution under stirring, reacting at room temperature for 4h, centrifuging and collecting a product, and drying overnight to obtain a ternary MOF structure: NH (NH) 2 -MIL-125@ZIF-67@ZIF-8；
(4) NH obtained in the step (3) 2 Calcining MIL-125@ ZIF-67@ ZIF-8 at 300 ℃ for 4h at the heating rate of 2 ℃/min to obtain the ternary MOF derived zinc-titanium nanocomposite.
The material prepared by the invention can be used for photocatalytic degradation of tetracycline, is simple to prepare, has low cost and is suitable for large-area popularization and application.
The above additional technical features can be freely combined and used in superposition by those skilled in the art without conflict.
The above description is only a preferred embodiment of the present invention, and the technical solutions that achieve the objects of the present invention by basically the same means are all within the protection scope of the present invention.
Claims (1)
1. A preparation method of a ternary MOF-derived zinc-titanium nanocomposite material capable of photocatalytic degradation of tetracycline is characterized by comprising the following steps: the method comprises the following preparation steps:
(1) preparation of NH Using prior art methods 2 -MIL-125 and dispersed inIn methanol, 20mg/mL of NH was prepared 2 -MIL-125 dispersion for use;
(2) taking NH prepared in the step (1) 2 10-50mL of MIL-125 dispersion, with 500mL of 80mM 2-methylimidazole solution and 300mL of 25mM Co (NO) 3 ) 2 ·6H 2 And mixing the O solution under stirring, reacting at room temperature for 4 hours, centrifuging and collecting a product, and drying overnight to obtain a binary MOF structure: NH (NH) 2 -MIL-125@ ZIF-67, converting NH 2 -MIL-125@ ZIF-67 dispersed in methanol to form 36mg/mL NH 2 -MIL-125@ ZIF-67 dispersion;
(3) taking NH prepared in the step (2) 2 10-30mL of MIL-125@ ZIF-67 dispersion, with 150mL of a 25mM 2-methylimidazole solution and 250mL of 25mM Zn (NO) 3 ) 2 ·6H 2 And mixing the O solution under stirring, reacting at room temperature for 4h, centrifuging and collecting a product, and drying overnight to obtain a ternary MOF structure: NH (NH) 2 -MIL-125@ZIF-67@ZIF-8；
(4) NH obtained in the step (3) 2 Calcining MIL-125@ ZIF-67@ ZIF-8 at 300 ℃ for 4h at the heating rate of 2 ℃/min to obtain the ternary MOF derived zinc-titanium nanocomposite.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116139867A (en) * | 2023-02-20 | 2023-05-23 | 常州大学 | MOFs derived ZnO@CDs@Co 3 O 4 Composite photocatalyst, preparation method and application thereof |
| CN116655932A (en) * | 2023-05-15 | 2023-08-29 | 浙江工业大学 | Bimetal MOFs nano-sheet based on ZIF/MIL topological structure and preparation method and application thereof |
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| CN116139867B (en) * | 2023-02-20 | 2024-04-05 | 常州大学 | MOFs derived ZnO@CDs@Co 3 O 4 Composite photocatalyst, preparation method and application thereof |
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| CN116655932B (en) * | 2023-05-15 | 2024-02-13 | 浙江工业大学 | Bimetal MOFs nano-sheet based on ZIF/MIL topological structure and preparation method and application thereof |
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