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Method for efficiently preparing nano composite material with selenium atoms loaded on metal organic framework and application of nano composite material

A technology of metal-organic framework and nanocomposite materials, which is applied in the direction of nanotechnology, nanotechnology, nanotechnology, etc. for materials and surface science, and can solve the problems of difficult large-scale production, pollution of tube furnace tubes, and insufficient doping amount. Control and other issues, to achieve the effect of improving material purity and catalytic rate, large loading capacity, and excellent binding materials

Pending Publication Date: 2022-03-15
GUANGDONG JINAN ESTABLISHED SELENIUM SOURCE NANO TECH RES INST CO LTD
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  • Description
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  • Application Information

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Problems solved by technology

In this method, a large amount of selenium gas is often discharged with nitrogen or argon gas flow, and most of the selenium is lost with the gas, so the selenium doping amount is as low as 5-16%, most of the selenium is lost with the gas, the doping amount is uncontrollable and the selenium gas It is easy to cause pollution of the tube furnace tube, the maintenance cost is high, and it has an important relationship with the temperature range setting, and it is not easy to control large-scale production

Method used

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  • Method for efficiently preparing nano composite material with selenium atoms loaded on metal organic framework and application of nano composite material
  • Method for efficiently preparing nano composite material with selenium atoms loaded on metal organic framework and application of nano composite material
  • Method for efficiently preparing nano composite material with selenium atoms loaded on metal organic framework and application of nano composite material

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preparation example Construction

[0040] The present invention provides a nanocomposite preparation method of a metal organic frame load selenium atom, including steps:

[0041] Weigh ZIF-67 powder and selenium powder, the mass ratio of ZIF-67 powder: selenium powder = 1-50: 1, mix even after mixing, pour into the heating container, nano powder purchase from Aladdin (Item No.: S105193; Purity: 99.9%), to draw the heating container, such as using the vacuum sealing system of Guangzhou Qi Qi Instrument Co., Ltd. to vacuum (-15Pa), high temperature seal heating to 230-280 ° C, and keep After a constant temperature 0.5-1.5 hours, the heating container is removed after cooling, and the mixture is extracted to obtain a selenium-oriented nanocomposite based on the metal organic frame (ie the SE / ZIF-67 composite system material);

[0042] Alternatively, ZIF-8 powder and nano-selenium powder are weighed, and its mass ratio of ZIF-8 powder: selenium powder = 1-50: 1, mixed into the heating container after mixing, and pour...

Embodiment 1

[0047] EXAMPLES 1. Metal organic frames are used for nanocomposite preparation methods of selenium atoms, including steps:

[0048] (1) Preparation of ZIF-67

[0049] 0.733 g of six hydrogen nitrate cobalt in 100 ml of beaker A was added, 50 ml of methanol was added, and 1.623 g 2-methylimidazole was added to another 100 ml of beaker B, 50 ml of methanol was added. The solution in the above-mentioned beaker A and beaker B is fully dissolved under ultrasonic treatment, respectively. The solution in the beaker A and the beaker B was then poured into the large beaker, and the sealed beaker port was sealed with vigorous stirring. Finally, the product was collected at 12000 rpm Rotate and washed three times with methanol, and the drying tank was dried at 60 ° C to obtain ZIF-67 powder.

[0050] (2) Preparation of SE / ZIF-67

[0051] It is weighed 50mg ZIF-67 powder and different mass ratio selenium powder (such as ZIF-67: selenium powder = 10: 1). After mixing is uniform, pour in the ...

Embodiment 2

[0056] Embodiment 2 Metal organic frame load selenium atom nanocomposite preparation method, including steps:

[0057] (1) Preparation of ZIF-67

[0058] It is weighed 0.9 g of hexahydrate cobalt in 100 ml of beaker A, adding 50 ml of methanol, and 1.8 g 2-methylimidazole in additional 100 ml of beaker B, 50 ml of methanol was added. The solution in the above-mentioned beaker A and beaker B is fully dissolved under ultrasonic treatment, respectively. The solution in the beaker A and the beaker B poured into the large beaker and mixed together, and the sealed beaker port was reacted at vigorously stirring 10 h. Finally, the product was collected at 12000 rpm Rotate and washed three times with methanol, and the drying tank was dried at 60 ° C to obtain ZIF-67 powder.

[0059] (2) Preparation of SE / ZIF-67

[0060] It is weighed with 50 mg ZIF-67 powder and different mass ratio of selenium powder (such as ZIF-67: selenium powder = 1: 1). After mixing uniform, pour in a quartz glass ...

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Abstract

The invention discloses a method for efficiently preparing a nano composite material with selenium atoms loaded on a metal organic framework and application of the nano composite material, and the preparation method comprises the following steps: (1) weighing ZIF-67 powder and selenium powder according to a mass ratio of (1-50): 1, or weighing ZIF-8 powder and selenium powder according to a mass ratio of (1-50): 1, uniformly mixing, pouring into a heating container, and heating for 20-30 minutes; and vacuumizing the heating container, heating to 230-280 DEG C in a high-temperature sealing manner, keeping the constant temperature for a period of time, automatically cooling, taking out the heating container, and pouring out the mixture to obtain the nano composite material with selenium atoms loaded on the metal organic framework. The nano composite material with the selenium atoms loaded on the metal organic framework has a better human neuroblastoma cell protection effect, and has a good effect in treatment of cerebral apoplexy.

Description

Technical field [0001] This patent relates to the technical field of chemical materials, and in particular, it is particularly related to metal organic frame load selenium atom nanocomposites and preparation methods and applications. Background technique [0002] Metal Organic Frame (MOF) has a molecular / atomic level catalytic center, high porosity, large surface area, high load capacity and uniform structure, as a class of two-dimensional or three-dimensional porous crystal materials, has become rapid in the past 10 years And important catalyst design is one of the most promising materials. A huge potential is shown in bioharmaceutical molecular storage, multiphase catalysis, biomedical delivery, gas separation, and energy storage applications. Selenium is one of the necessary trace elements of the human body, which has a great support for health maintenance and disease prevention. The combination of MOF and selenium will have hope to develop more possibilities in the biomedic...

Claims

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Application Information

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IPC IPC(8): A61K33/04A61K47/69A61P39/06A61P9/10A61P25/00A61P29/00B82Y5/00B82Y40/00B82Y30/00
CPCA61K33/04A61K47/6949A61K9/0053A61K9/0019A61P39/06A61P9/10A61P25/00A61P29/00B82Y5/00B82Y40/00B82Y30/00
Inventor 贺利贞陈填烽陈义康袁中文李海伟许宇龙
Owner GUANGDONG JINAN ESTABLISHED SELENIUM SOURCE NANO TECH RES INST CO LTD
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