阅读说明：本技术 一种长方形条状Al-MOF材料的制备方法 (Preparation method of rectangular strip-shaped Al-MOF material ) 是由 季四平 阿佳娇 蒋峰芝 王世雄 杨项军 钏永明 高利斌 黄章杰 于 2019-10-18 设计创作，主要内容包括：本发明专利公开了一种长方形条状Al-MOF材料的制备方法,按以下步骤进行：将AlCl<Sub>3</Sub>·6H<Sub>2</Sub>O与DMF溶液混合,加入均苯四甲酸制备为混合溶液,将混合溶液转入内衬聚四氟乙烯容器水热反应釜中,于110-150℃电热恒温鼓风干燥箱中反应18-24h；自然冷却至室温,离心产物,洗涤；最后转入电热恒温鼓风干燥箱中烘干,得到一种长方形条状Al-MOF材料。本发明的方法所获得的长方形条状Al-MOF材料,形貌均一,操作简单易行,合成过程无污染。(The invention discloses a preparation method of a rectangular strip Al-MOF material, which comprises the following steps: mixing AlCl 3 ·6H 2 Mixing the O and the DMF solution, adding pyromellitic acid to prepare a mixed solution, transferring the mixed solution into a hydrothermal reaction kettle lined with a polytetrafluoroethylene container, and reacting in an electric heating constant-temperature air-blowing drying oven at the temperature of 110-; naturally cooling to room temperature, centrifuging the product, and washing; and finally, drying in an electric heating constant-temperature blast drying oven to obtain the rectangular strip Al-MOF material. The rectangular strip Al-MOF material obtained by the method has uniform appearance, simple and easy operation and no pollution in the synthesis process.)

1. A preparation method of a rectangular strip Al-MOF material is characterized by comprising the following steps:

(1) mixing AlCl₃·6H₂Mixing O with DMF solution, adding pyromellitic acid to prepare mixed solution, and mixing in AlCl ratio₃·6H₂The molar ratio of O to pyromellitic acid is 1.15 ~ 1.25.1.25: 1;

(2) transferring the mixed solution into a hydrothermal reaction kettle with a polytetrafluoroethylene-lined container, and reacting for 18-24h in an electric heating constant-temperature air-blast drying box at the temperature of 110-;

(3) naturally cooling to room temperature, centrifuging the product, and then washing with ethanol and ultrapure water;

(4) and finally, drying in an electric heating constant-temperature blast drying oven to obtain the rectangular strip Al-MOF material.

2. The method for preparing the rectangular strip Al-MOF material according to claim 1, wherein the AlCl is adopted in the step (1)₃·6H₂The molar ratio of O to pyromellitic acid was 1.15 ~ 1.25.1.25: 1.

3. The method for preparing the Al-MOF material with the rectangular strip shape as claimed in claim 1, wherein the reaction temperature of the solution in the step (2) is 110-150 ℃, and the reaction time is 18-24 h.

4. The preparation method of the rectangular strip Al-MOF material according to claim 1, wherein the cooling mode after the reaction in the step (3) or (4) is natural cooling, the centrifugal rotation speed is 4000 ~ 10000r/min during cleaning, ethanol and ultrapure water are cleaned for 3 times, and the drying temperature is 60 ~ 80 ℃.

Technical Field

The invention relates to the field of composite materials, in particular to a preparation method of a rectangular strip-shaped Al-MOF material.

Background

The MOFs material is a coordination polymer with a three-dimensional pore structure, has the advantages of large specific surface area, adjustable pore particles, easy structure functionalization and the like, and has wide application in catalysis, energy storage, separation and catalysis; the MOFs materials have diversity with organic ligands and metal ions, the structure types are diversified immediately, and the research and development of the MOFs materials are further progressed continuously due to the combination of directionality and modification of functional groups.

The metal aluminum raw material is easy to obtain, and the cost of the metal ions used for developing the MOFs material is lower than that of other MOFs materials. At the present stage, the development of aluminum-based MOFs materials with certain morphologies, particularly materials with controllable morphology, is still a hot point of research.

Disclosure of Invention

The invention provides a preparation method of a rectangular strip Al-MOF material aiming at the problems.

In order to achieve the above purpose, the method of the invention is as follows: mixing AlCl₃·6H₂Mixing O with DMF solution, adding pyromellitic acid to prepare mixed solution, and mixing in AlCl ratio₃·6H₂The molar ratio of O to pyromellitic acid is 1.15 ~ 1.25.25: 1, the mixed solution is transferred into a hydrothermal reaction kettle with a polytetrafluoroethylene container lining, and is reacted in an electrothermal constant-temperature blast drying oven at the temperature of 110-.

Compared with the prior art, the invention has the beneficial effects that: the method disclosed by the invention is green and environment-friendly, is simple and easy to operate, overcomes the defects of the conventional method, is high in product yield, and obtains the preparation method of the rectangular strip-shaped Al-MOF material.

Detailed Description

The following detailed description of the invention is provided to illustrate the practice and resulting advantages of the invention. It is to be understood that the particulars described herein are by way of illustration and explanation only and are not intended to limit the present invention.

The endpoints of the ranges and any values recited herein are not limited to the precise range or value, and are to be understood as inclusive of and proximate to those ranges and values recited. As between the endpoints of the ranges and between the individual points of value, one or more new value ranges and individual points of value may be combined with each other and these values and ranges should be considered as specifically disclosed herein.