Environmental Application Of Two-Dimensional Metal Carbide Composites Through Su Rface Functionalization

The typical of two-dimensional metal carbides,Ti3AlC2,have attracted great attention as two-dimensional material star in the past decade.The material Ti3AIC2 has been applied in various applications,which ranges from energy,biology,to environment and other scientific practical research fields for their excellent mechanical properties and chemical stability.Meanwhile,nanomaterial Ti3AlC2 has large specific surface area and excellent water dispersion,which shows potential excellent adsorption performance.However,surface of pristine Ti3AlC2 has no functional groups,resulting in limited practical application.Therefore,searching for surface modification methods is of great significance for further application.The research of composite materials that inorganic materials combine with organic matter through chemistry strategy has been attracting increasing attention from scholars.Using organic functional polymer is modifying inorganic materials to synthesize composite materials which endows excellent properties and provides new ideas for expanding practical application.In this research,mussel-inspired chemistry strategy,and surface grafting methods are considered as surface modification of Ti3AIC2 material.The Ti3C2Tx obtained by etching Ti3AlC2 material is used as base material,grafting functional polymer of functional group to synthesize various nanocomposite materials.Meantime,adsorption performance of synthetic composites materials in environment remediation is studied.The Ti3C2Tx composites were analyzed and characterized,and characterization results showed that they were successfully synthesized.Adsorption results indicate that adsorption performance of Ti3C2Tx composites synthesized by research modification methods improved remarkably.The adsorption capacities of Ti3C2Tx-PDOPA,Ti3C2Tx@PDA@poly(S-co-MA),Ti3C2Tx@PEI-TA,Ti3C2Tx-NH2@PSPSH and Ti3C2Tx-NH2-poly(S-co-MA)were up to 18.4 mg/g,42.85 mg/g,24.30 mg/g,33.84 mg/g and 31.14 mg/g,respectively,while raw material is about 10 mg/g.The results show that modification methods are feasible,and composite materials show good potential in environmental applications.