Preparation method and application of double-heteroatom doped porous graphene nano carbon sheet

A technology of carbon nanosheets and heteroatoms, which is applied in the interdisciplinary field of materials and analytical chemistry, to achieve good UV absorption performance, good UV absorption capacity, and simple preparation methods
CN111196602AActive Publication Date: 2020-05-26ANHUI UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI UNIVERSITY
Publication Date
2020-05-26

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Abstract

The invention discloses a preparation method and application of a double-heteroatom doped porous graphene nano carbon sheet. First, through a sodium chloride template method, a heteroelement carbon source is regulated, and through heat treatment, a nitrogen and sulfur double-doped porous carbon nanometer sheet is prepared; then, the material is used as a novel carbon matrix for matrix-assisted laser desorption ionization time-of-flight mass spectrometry, organic environmental pollutant small molecules (m / z is less than 700) are analyzed by mass spectrometry, and the novel matrix can also be used for analyzing the composition and content of the environmental pollutant small molecules in atmospheric haze (PM2.5). The method can also be used for analysis and quantitative detection of different kinds of amino acid biomolecules. When the double-heteroatom doped porous carbon material is used as a new matrix for detecting environmental pollutant molecules, the advantages of low background interference peak, high ion strength and the like are achieved.
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Description

technical field

[0001] The invention relates to a preparation method of a double heteroatom-doped porous graphene-like nano-carbon sheet, and the application of the material as a new matrix in the detection of atmospheric smog and small molecular environmental pollutants in the environment by matrix-assisted laser desorption ionization time-of-flight mass spectrometry , belonging to the interdisciplinary field of materials and analytical chemistry. Background technique

[0002] In recent years, most of the northern cities have severe smog in the cold winter. while PM 2.5 (atmospheric particulate matter with an aerodynamic equivalent diameter of less than 2.5 μm) is the main factor causing smog, which may cause various human diseases such as lung injury and cardiac diastolic insufficiency. It has been reported in the literature (Inhalation Toxicol., 2007, 19, 811–832) that the generation of these adverse factors is related to PM 2.5 The content of heavy metals and organic ...

Claims

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