Hypergravity method metal organic ligand doped amino acid composite material and preparation method thereof

Abstract

The invention discloses a supergravity method metal organic ligand doped amino acid composite material and a preparation method thereof. The method comprises the following steps: firstly preparing zirconium chloride solution denoted as solution A; preparing terephthalic acid solution, dissolving amino acid into the terephthalic acid solution, and denoting the mixed solution as solution B; feedingthe solution A into the solution B, meanwhile performing magnetic stirring, feeding glacial acetic acid into the mixed solution, transferring the mixed solution into a centrifuge tube, controlling thetemperature to be 20 to 70 DEG C, and ensuring that reaction is performed for 20 to 40min at ultrafast rotate speed of 8000 to 10000rmp / min and 500 to 1000W, so as to obtain the supergravity method metal organic ligand doped amino acid composite material. The material has the advantages that compared with a conventional crystal particle synthesized hydrothermally, the crystal particle of the material is smaller, the particle uniformity is high, and the BET specific surface area is high and is approximately 1400 to 1600m<2> / g. Meanwhile, the advantage of controllable amino acid doping ratio can be realized, and further the adsorption capacity and selectivity to dyes by the material is improved.

Description

technical field [0001] The invention belongs to the field of new functional materials, and in particular relates to an equihierarchic porous metal organic framework material and a preparation method thereof. Background technique [0002] In recent years, metal-organic frameworks (MOFs) materials, as a new class of nano-porous materials, have developed efficient, environmentally friendly and low-cost materials that are an important part of industrial development and applications. Nowadays, the degradation of organic dyes and the deposition of heavy metal ions in sewage have become an urgent problem in water pollution control and protection. The structure of MOFs has attracted attention because it contains nano-scale pore channels and cage structures, and has a variety of structures that are easy to control. At the same time, the metal ions in its center provide a large number of active sites. However, existing MOFs are easily affected by acid-base environment and high temper...

AI Technical Summary

Problems solved by technology

However, existing MOFs are easily affected by acid-base environment and high temperature and pressure, prone to different degrees of collapse, easy to dissolve in water, weak selective adsorption, long synthesis time, uneven crystal form and other defects, which affect the practical application of MOFs.

Images