Nitrogen-doped carbon material, and preparation method and application thereof

Abstract

The invention belongs to the field of carbon materials, and concretely relates to a nitrogen-doped carbon material, and a preparation method and an application thereof. The prearatio method comprisesthe following steps: calcining glucose used as a raw material in an inert atmosphere using melamine used as a nitrogen source to a certain temperature to obtain a carbon substrate, mixing the carbon substrate with melamine in an aqueous solution according to a certain ratio, performing heating and stirring, drying the obtained material, and calcining the dried material in the inert atmosphere at alow temperature in order to obtain the nitrogen-doped carbon material. The preparation method has the advantages of simplicity, low energy consumption and low cost, and the nitrogen-doped carbon material has a very high reactivity, and can selectively degrade a plurality of organic pollutants, so the technical problems of complexity and high cost of preparation methods of the nitrogen-doped carbon material in the prior art and the technical problem of limited ability to degrade the organic pollutants in the environment are solved.

Description

technical field [0001] The invention belongs to the field of carbon materials, and more specifically relates to a nitrogen-doped carbon material, its preparation and application. Background technique [0002] Carbon materials are the most widely studied and applied inorganic non-metallic materials. The properties of carbon materials mainly depend on their raw materials, internal structure and surface activity. Among them, surface activity is considered to be the most important influencing factor. Therefore, the modification of carbon materials is often through activation or surface functionalization to change their surface activity, thereby affecting the overall performance and use. In 2009, the research of LIM S and YOON.S.H showed that: the traditional modification method only treats the surface of carbon materials, and does not significantly benefit its overall performance. [0003] Compared with traditional modification methods, heteroatom doping can significantly impr...

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Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides a nitrogen-doped carbon material, its preparation and application, which uses glucose as a raw material and melamine as a nitrogen source, and first calcines the glucose to a certain level under an inert atmosphere. The carbon substrate is prepared at high temperature, and then the fired carbon substrate and melamine are mixed in an aqueous solution in a certain proportion, then heated and stirred, dried and then calcined at a low temperature under an inert atmosphere, and nitrogen-doped carbon can be obtained after completion material, the preparation method is simple, less energy consumption and low cost, the nitrogen-doped carbon material exhibits high reactivity, can selectively degrade a variety of organic pollutants, thereby solving the problem of the preparation of nitrogen-doped carbon materials in the prior art The method is complicated, the cost is high, and the technical problems of limited ability to degrade organic pollutants in the environment

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