期刊论文

Wang, H.-X.

中文

中国环境科学

1000-6923

2010

30

10

1349-1352

湖南省科技厅计划项目（2009NK3107） 湖南农业大学校青年基金（08QN10）致谢：感谢湖南农业大学化学实验教学中心的老师给予实验仪器的帮助.

本校为第一且通讯机构

采用自沉积方法将HAuCl4直接还原成纳米金颗粒并修饰在碳纳米管表面,所制备的纳米金（Au-CNTs/C）修饰电极对邻苯二酚（CAT）具有高的电催化氧化作用.采用循环伏安法考察CAT在Au-CNTs/C电极上的电化学行为,发现CAT在该修饰电极上发生可逆的氧化还原反应,在0.25V有明显的氧化峰.在磷酸盐缓冲溶液PBS（pH7.4）中,CAT的响应电流与浓度在5.0×10-7～5.0×10-3mol/L范围内呈线性关系,相关系数为0.9992,检出限为3.3×10-7mol/L.

Surface of carbon nanotubes (CNTs) supported gold (Au) nanoparticles was prepared by spontaneous reduction of HAuCl 4 aqueous solution, and as-prepared Au-CNTs/C electrodes show high electrocatalytic performance for CAT. The electrochemical behaviors of Au-CNTs/C elecrodes were investigatated by cyclic votammetry. It was obtained a well-shaped redox reactin at Au-CNTs/C elecrodes, and oxidation peak of catechol was obviously observed at 0.25V. Additional, linear relationship was obtained between I pa and concentration of catechol in the range o...