对硝基苯酚在铜电极上的电化学还原过程研究

Electrochemical Reduction of P-nitrophenol on Copper Electrode Surface

采用循环伏安法研究了不同pH溶液中对硝基苯酚在铜电极上的电化学还原行为,选定了不同的电位利用计时电流法电解对硝基苯酚。研究了对硝基苯酚电解还原过程中pH、电位和电解时间对去除效率的影响,并对反应机理进行了探讨。结果表明,对硝基苯酚在铜电极上能发生还原反应,并且随着pH的升高,还原电位负移。

Electrochemical reduction of p-nitrophenol （P-NP） on copper electrode surface in various pH condition was investigated by initial cyclic vohammetric. Experiments were conducted to study the effect of potential, pH, and electrolysis time on the degradation of p-notrophenol. The result is helpful for understanding of the reduction mechanism of p-nitrophenol at copper surface. Results showed that the reduction of P-NP was available on copper electrode surface and the reduction potential shift to more negative with increase of pH.