Preparation and application of bimetallic oxide magnetic carbon material derived from metal organic framework

A double metal oxide, metal organic framework technology, applied in the directions of alkali metal oxides/hydroxides, alkali metal compounds, inorganic chemistry, etc., can solve the problems of less active adsorption sites, increase adsorbents, etc., and achieve the carbonization process Simple, high adsorption properties, inexpensive preparation effect

Active Publication Date: 2022-07-08
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0003] Although MOFs with a single metal node have excellent magnetic response after high-temperature carbonization, they have fewer active adsorption sites and need to increase the amount of adsorbent to improve the extraction efficiency, which limits the wide application of MOFs as efficient magnetic extraction materials.

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  • Preparation and application of bimetallic oxide magnetic carbon material derived from metal organic framework
  • Preparation and application of bimetallic oxide magnetic carbon material derived from metal organic framework
  • Preparation and application of bimetallic oxide magnetic carbon material derived from metal organic framework

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Embodiment Construction

[0019] In order to better understand the present invention, the preparation and application of a metal-organic framework-derived bimetallic oxide magnetic carbon material of the present invention will be described with specific examples.

[0020] Instrument: vacuum drying oven, DZF-6020, Shanghai Yiheng Technology Co., Ltd., China; tube furnace, Tianjin Zhonghuan Experimental Electric Furnace Co., Ltd., China; high performance liquid chromatograph, Agilent 1100 series, USA;

[0021] Reagent: copper nitrate trihydrate (Cu(NO) 3 ) 2 ·3H 2 O), ferric chloride hexahydrate (FeCl 3 ·6H 2 O), Tianjin Kemeiou Chemical Reagent Co., Ltd.; 1H-pyrazole-4-carboxylic acid, diflubenzuron, diflubenzuron, fenflubenzuron, diflubenzuron, flufenoxuron, Bailingwei Technology Co., Ltd.; N,N - Dimethylformamide (DMF), Li'an Bolonghua (Tianjin) Pharmaceutical Chemical Co., Ltd.; Anhydrous ethanol, acetonitrile, Tianjin Damao Chemical Reagent Factory; Distilled water was obtained by Milli-Q system...

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Abstract

The invention provides preparation and application of a bimetallic oxide magnetic carbon material derived from a metal organic framework. The bimetallic oxide magnetic carbon material is formed by calcining and carbonizing a bimetallic organic framework MOF-919 (Fe) material under a high-temperature condition, and is applied to enrichment and separation of a target object in a complex system sample. The preparation method comprises the following steps: synthesizing a bimetallic organic framework MOF-919 (Fe) material by taking Fe and Cu as metal nodes and 4-pyrazolecarboxylic acid as a ligand, calcining the material at high temperature under the protection of inert gas, and directly carbonizing to obtain the bimetallic oxide magnetic carbon material Fe2O3/CuO-C. Magnetic particles and a carbon-based precursor do not need to be added in the preparation process, and the prepared magnetic carbon material has relatively high specific surface area, good porosity, excellent magnetic performance and rich adsorption sites, and can be applied to magnetic solid-phase extraction as an adsorption material to efficiently enrich and separate benzoylurea insecticides.

Description

technical field [0001] The invention relates to the preparation of a novel magnetic carbon material, which is mainly used as a magnetic adsorbent in the pretreatment process of complex samples such as benzoyl urea pesticides, and can efficiently enrich and separate target compounds, which belongs to separation in analytical chemistry. The field of material preparation and application technology. Background technique [0002] Magnetic solid phase extraction (MSPE) has been widely concerned and applied in sample pretreatment due to its advantages of high efficiency, fast mass transfer, easy realization of solid-liquid separation, and no need for filtration or centrifugation. For magnetic adsorption materials, existing researches mostly use Fe modified with different functional groups. 3 O 4 or doped with Fe 3 O 4 The core-shell composite materials formed by magnetic particles are the main ones. Due to Fe 3 O 4 It is easy to agglomerate and block the pores and active ads...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30B01D15/08
CPCB01J20/226B01J20/06B01J20/20B01J20/28009B01D15/08Y02P10/20
Inventor 王帅李翔司甜甜郭勇梁晓静
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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