Synthesis method and application of MXene efficient catalyst containing pyridine structure

Abstract

The invention discloses a synthesis method and application of an MXene high-efficiency catalyst containing a pyridine structure, and the synthesis method comprises the following steps: 1) deprotonating chitosan, then stirring with MXene, and centrifuging and washing the product; (2) re-dissolving the washed final product in the step (1) in ethanol, adding a pyridine-4-formaldehyde solution, condensing, refluxing, cooling, centrifuging, re-dissolving in methanol, sequentially adding FeCl3 and 4, 4-dipyridyl, reacting, cooling, washing with deionized water and ethanol, centrifuging, and drying; and 3) performing high-temperature treatment on the dried final product obtained in the step 2 in a nitrogen environment for a certain time to obtain a target product. Compared with the prior art, the pH condition range required by the Fenton reaction is wider, free-state Fe < 2 + > is not prone to oxidation failure and not prone to causing secondary pollution, iron ions are fixed to the surface of the MXene two-dimensional material in a complex mode, and the large specific surface area of the two-dimensional layered structure MXene is utilized, so that active sites of the catalyst are increased, and the catalytic degradation efficiency is improved.

Description

Technical field [0001] The invention relates to the technical field of catalytic materials, and specifically refers to a synthesis method and application of a high-efficiency MXene catalyst containing a pyridine structure. Background technique [0002] With the changes of the times, the protection of water resources has become a topic of social concern. In order to efficiently treat wastewater, advanced oxidation technology has emerged. MXene is a class of two-dimensional inorganic compounds in materials science. These materials consist of transition metal carbides, nitrides or carbonitrides several atomic layers thick. It was first reported in 2011 that because MXene materials have hydroxyl groups or terminal oxygens on their surfaces, they have the metallic conductivity of transition metal carbides. Fenton reaction, as a type of advanced oxidation method, was discovered by chemist Fenton HJ in 1893. This is also the origin of the name of Fenton reaction. Its principle is...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of synthetic method and application that contains pyridine structure MXene high-efficiency catalyst, in order to solve the required pH condition scope of Fenton reaction narrower, free state Fe2+ is prone to oxidation failure and easy to cause secondary pollution

Images