Synthesis And Characterization Of Organic Porous Polymers Applied In Organic Pollutants Treatment

As a new type of porous materials,porous organic polymers(POPs)were constructed solely by strong covalent bond linkages,which exhibit large surface area,low mass density,high stability and easy functionality.POPs have a myriad of potential applications in gas adsorption,storage and separation,heterogeneous catalysis,chemical and biological sensing,drug release and many other aspects,which has attracted extensive attention of scientists.As an important category of POPs,conjugated micro/meso-porous polymers(CMPs)feature extended ?-conjugated scaffold and large electron delocalized network structure,which facilitates efficient light absorption and charge carrier transportation.Thus,it has been demonstrated that CMPs could server as photocatalysts for organic reactions and water splitting.The first task of this paper is to prepare six conjugated microporous polymers(BF-CMPs)through Suzuki reaction.BF-CMPs have excellent pore properties and good stability,combined with the structural characteristics of BF,so it is hoped that it will be used in water dye treatment nitrogen sorption measurements.We first investigated the adsorption behavior of RhB on BF-CMPs.Among them,the adsorption capacity of Py-BF-CMP on RhB was better than that of most reported porous polymer adsorbents.The diffuse reflectance UV-vis spectra of BF-CMPs exhibited that thay have broad intense absorption covering the whole visible light region,and they can show photoelectric current behavior under visible light irradiation.The degradation of RhB by BF-CMPs with visible light(? > 450 nm)irradiation has also achieved good results.Our current work represented an unprecedented example in the respect of removing organic water-soluble dyes by both adsorption and photodegradation,which provide a new strategy to develop faster and more efficient porous materials for water purification and remediation.Covalent organic frameworks(COFs)are crystalline porous polymers formed by a bottom-up approach,the second work of this paper is to synthesize an imide COF(DBC-TPE-COF)and we made a series of characterization of it.