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Zirconium-based metal organic framework material as well as preparation method and application thereof

An organic framework and metal-based technology, applied in the field of zirconium-based metal-organic framework materials and their preparation, can solve the problems of high price and unfriendly environment.

Inactive Publication Date: 2021-05-18
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the metal organic framework materials widely used in the field of photocatalysis are mostly photosensitizers or dyes doped with noble metals such as Ir and Ru, and some semiconductor materials, which are not only expensive, but also unfriendly to the environment.

Method used

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  • Zirconium-based metal organic framework material as well as preparation method and application thereof
  • Zirconium-based metal organic framework material as well as preparation method and application thereof
  • Zirconium-based metal organic framework material as well as preparation method and application thereof

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Embodiment 1

[0027]A zirconium-based organic frame material, the preparation method thereof includes the following steps:

[0028]5 mg (0.013 mmol) of L-S, 17mg (0.052 mmol) of L-2Me, 15 mg (0.065 mmol) ZrCl4, 0.5 ml of acetic acid and 5 mL of DMF were added to the reactor, and the ultrasound was 30 min, and then placed in an oven, at 100 ° C for 48 h, and the reaction liquid was cooled to room temperature, filtered, washed multiple times with DMF and ethanol, and then placed In a vacuum drying tank, 12 h was dried at 120 ° C to obtain a zirconium-based organic frame material (rejected as MOF-S), and the yield was 87%.

[0029]Performance Testing:

[0030]1) L-S, L-2ME and MOF-S1H NMR spectrumfigure 1 Indicated.

[0031]byfigure 1 It can be seen that the incorporation ratio of two ligand L-S and L-2ME in MOF-S is consistent with the proportion of the ligand used during the preparation process, and the chemical formula of MOF-S can be expressed as Zr.6O4(OH)4(L-s)1.2(L-2ME)4.8.

[0032]2) Powder X-ray diffracti...

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Abstract

The invention discloses a zirconium-based metal organic framework material as well as a preparation method and application thereof. The chemical formula of the zirconium-based metal organic framework material is Zr6O4 (OH) 4 (L-S) 1.2 (L-2Me) 4.8, in the formula, L-S is 2',5'-dimethyl [1,1':4',1''-triphenyl]-4,4,dicarboxylic acid, L-2Me is 4, 4'-(benzo [c] [1, 2, 5] thiadiazole-4, 7-diyl) dibenzoic acid. The zirconium-based metal organic framework material disclosed by the invention can simultaneously generate superoxide anion free radicals (O2.-) and singlet oxygen (1O2) under an illumination condition, is environment-friendly, low in price and simple to prepare, has the advantages of high catalytic activity, mild reaction conditions, convenience in operation, high substrate applicability and the like when being used for a photo-induced aerobic oxidation reaction, and has a good application prospect.

Description

Technical field[0001]The present invention relates to the field of catalysts, and more particularly to a zirconium-based metal organic frame material and a preparation method thereof.Background technique[0002]Oxidation reactions are one of the most basic chemical transformations in nature, industry, and chemistry laboratories. From the perspective of green chemistry, molecular oxygen has become an extremely attractive oxidant due to low cost, high availability and small environmental impact. However, usually oxygen-participated aerobic oxidation reactions need to be performed at relatively high temperatures (373K) and / or oxygen pressure (5ATM), so applications are limited. Photocatalytic as a green effective method, can achieve oxygen-involved aerobic oxidation reactions under gentle conditions. The classically photocatalytic oxygen oxidation reaction can primarily be divided into three steps: 1) photocatalyst absorption light energy to achieve excited state; 2) The photocatalyst ...

Claims

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Application Information

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IPC IPC(8): B01J31/16
CPCB01J31/1691B01J35/39
Inventor 任颜卫卢佳铭江焕峰
Owner SOUTH CHINA UNIV OF TECH
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