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本文采用循环伏安一步共聚法在碳纳米管(CNTs)修饰的铂基底上制备了聚苯胺/铁氰化镍(PANI/NiHCF)纳米复合颗粒.通过电化学石英晶体微天平(EQCM)技术检测了复合颗粒制备过程的质量改变量,并用扫描电镜(SEM)、透射电镜(TEM)和傅立叶变换红外光谱(FTIR)分析了复合颗粒的微观形貌和组成.结合循环伏安法和EDS能谱考察了该复合电极对Cd2+离子的交换性能.结果表明,三维多孔的CNTs不仅可促进复合颗粒的沉积,而且其独特的网络结构和表面特性对形成PANI/NiHCF复合颗粒的立方体构型起至关重要的作用.该复合电极在0.1mol·L-1Cd(NO3)2溶液中显示了良好的电活性,对Cd2+离子有可逆的离子交换性能,通过电控离子交换法可实现废水中Cd2+离子的高效分离.
In this paper, polyaniline / nickel ferricyanide (PANI / NiHCF) nanocomposite particles were prepared on carbon nanotubes (CNTs) modified platinum substrates by cyclic voltammetry in one-step copolymerization.Electrochemical quartz crystal microbalance (EQCM) The mass change of the composite particles during the preparation of the composite particles was measured and the morphology and composition of the composite particles were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR). Combined with cyclic voltammetry and EDS The results show that the three-dimensional porous CNTs not only promote the deposition of the composite particles, but also have unique network structure and surface properties that are responsible for the cubic configuration of the PANI / NiHCF composite particles The composite electrode shows good electroactivity in 0.1mol·L-1Cd (NO3) 2 solution and has reversible ion exchange performance for Cd2 + ion. The ion exchange of Cd2 + Efficient separation.