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首页> 外文期刊>International Journal of Electrochemical Science >Preparation of the Palladium/Polymeric Pyrrole-Multi-Walled Carbon Nanotubes Film/Titanium Electrode and Its Performance for the Dechlorination of 4-chlorophenol
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Preparation of the Palladium/Polymeric Pyrrole-Multi-Walled Carbon Nanotubes Film/Titanium Electrode and Its Performance for the Dechlorination of 4-chlorophenol

机译：钯/聚吡咯-多壁碳纳米管薄膜/钛电极的制备及其对4-氯苯酚的脱氯性能

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摘要

The electrochemically reductive dechlorination of 4-chlorophenol (4-CP) in aqueous solution on a palladium/polymeric pyrrole-multi-walled carbon nanotube film/meshed titanium electrode (Pd/PPy- MWCNTs/Ti) was examined in this paper. The Pd/PPy-MWCNTs/Ti cathode was prepared through electrodepositing cauliflower-like palladium nanoparticles onto a PPy-MWCNTs/Ti electrode (that was a titanium electrode coated with pyrrole and functionalized multi-walled carbon nanotubes by co- deposition). The physical properties of this electrode were characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD). Various factors influencing the dechlorination of 4- CP were also investigated. The results indicated that the removal rate of 4-CP reached 99.82% within 120 min and the current efficiency of 13.8% was obtained under the optimum conditions (the 2 dechlorination density of 1.0 mA/cm , the initial pH of 2.08 and the electrolyte of 0.1 mol/L Na2SO4). The predominant product was phenol. In addition, the electrode was found to be still stable after being used for six cycles and the dechlorination efficiency was over 93.3%.
机译：本文研究了钯/聚合物吡咯-多壁碳纳米管薄膜/网状钛电极（Pd / PPy-MWCNTs / Ti）上水溶液中4-氯苯酚（4-CP）的电化学还原脱氯。通过将花椰菜状钯纳米粒子电沉积到PPy-MWCNTs / Ti电极（这是一种通过吡咯涂层并经共沉积功能化的多壁碳纳米管的钛电极）上制备的Pd / PPy-MWCNTs / Ti阴极。通过扫描电子显微镜（SEM）和X射线衍射（XRD）表征该电极的物理性质。还研究了影响4-CP脱氯的各种因素。结果表明，在最佳条件下（2脱氯密度为1.0 mA / cm，初始pH为2.08，电解液为碱性），在120min内4-CP的去除率达到99.82％，电流效率为13.8％。 0.1 mol / L Na2SO4）。主要产物是苯酚。另外，发现该电极在使用六个循环后仍然稳定，脱氯效率超过93.3％。

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