Triazinyl organic mesoporous polymer as well as preparation method and application thereof

Abstract

The invention discloses a triazinyl organic mesoporous polymer as well as a preparation method and application thereof, belonging to the field of synthesis and adsorption research of an organic porous material. According to the preparation method, a solvothermal method is adopted, ethylene glycol is taken as a reaction medium, tripolycyanamide and paraformaldehyde are taken as raw materials, and a reaction is performed for certain time under a high-temperature and sealed condition to prepare the triazinyl organic mesoporous polymer. The preparation method provided by the invention is cheap in price, simple in process, clean, free of foreign smell, convenient to operate and is benefit for industrial production. The prepared triazinyl organic mesoporous polymer has an open fiber framework structure, is rich in nitrogenous functional groups, can absorb various pollutants in water, and has good application prospect in the aspects of adsorption separation, water body purification and the like.

Description

technical field [0001] The invention belongs to the field of synthesis and adsorption research of organic porous polymers, in particular to a triazine-based organic mesoporous polymer and its preparation method and application. Background technique [0002] Organic pollutants and heavy metal ions are the main components of many industrial wastewaters, and their types, contents, and properties vary greatly. Among many water treatment technologies, the adsorption method has broad application prospects due to its advantages such as strong adaptability, wide application range, simple operation, high biocompatibility, low cost, and easy regeneration. Therefore, the development of new multifunctional adsorption methods Materials have always been highly valued and closely watched by academia and industry. [0003] Porous materials are a major class of solid adsorbents due to their open framework structures. Compared with traditional inorganic microporous materials (such as zeolit...

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Problems solved by technology

But find in the actual operation process when synthesizing mPMF in DMSO, there are following problems at least: 1, the reaction time is longer (3d); 2, the product washing process is complicated, and separation recovery efficiency is low (need to use DMSO, acetone (as product successively) 3×), tetrahydrofuran (3×) and dichloromethane four organic solvents; and the sample is a whole piece of hard solid when the kettle is opened, in order to make the sample wash more thoroughly, it needs to be ground, but the ground sample is easy to centrifuge 3. DMSO is easily decomposed as a solvent at high temperature, and produces sulfur-containing compounds with a strong stench, which not only introduces sulfur impurities (content up to 5%) in the product, And seriously affect the working environment and health, and bring great inconvenience to the cleaning, separation and recovery of products

[0005] In addition to DMSO, there have also been attempts in the literature to synthesize mPMF in other polar solvents (such as dimethylformamide, N-methylpyrrolidone), but the specific surface area of ​​the resulting product is small (4.6m 2 / g), low porosity (0.005cm 3 / g), indicating that DMSO plays an important role in the formation of polymers with a porous structure, which may be attributed to the hydrogen bonding between DMSO and the reactants at the initial stage of the reaction (ChemSusChem2013, 6(7), 1186-1190)

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