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首页> 外文会议>International Conference on Energy and Environmental Protection >The Application of Glassy Carbon Electrode Modified by Multi-Walled Carbon Nanotubes for the Fast Determination of Hydroquinone in Wastewater
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The Application of Glassy Carbon Electrode Modified by Multi-Walled Carbon Nanotubes for the Fast Determination of Hydroquinone in Wastewater

机译：多壁碳纳米管改性玻碳电极在废水中快速测定氢醌的应用

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摘要

A novel multi-walled carbon nanotubes(MWCNTs)-modified glassy carbon electrode(GCE) with excellent stability, repeatability and anti-interference was synthesized and it exhibited an electrocatalytic signal for hydroquinone (HQ) compared to bare GCE, which suggested that the presence of MWCNTs efficiently enhances electron transfer. Various parameters such as pH, modifier volume, and scan rate were optimized using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) methods. Under optimum conditions, linear responses for HQ in 0.1mol-L~(-1) phosphate buffer solution of pH 6.0 were obtained in the range of 5×10~(-6)mol-L~(-1) to 2xl0"4 mol-L~(-1) with detection limits of 2.7xl0"6 mol-L~(-1) (signal-to-noise ratio of 3). Such MWCNTs-modified GCE was successfully applied for the determination of hydroquinone in simulated water samples and can be developed for the the detection of HQ.
机译：合成具有优异稳定性，可重复性和抗干扰的新型多壁碳纳米管（MWCNT）制定的玻碳电极（GCE），与裸GCE相比，它表现出氢醌（HQ）的电催化信号，这表明存在MWCNTS有效增强电子转移。使用循环伏安法（CV）和差分脉冲伏安法（DPV）方法优化各种参数，例如pH，改性剂体积和扫描速率。在最佳条件下，在5×10〜（-6）摩尔-1（-1）至2×10“4的范围内，得到0.1mol-L〜（-1）磷酸盐缓冲溶液的线性响应。 MOL-L〜（-1）检测限为2.7xL0“6 mol-L〜（-1）（信噪比为3）。这种MWCNTS改性的GCE被成功地应用于模拟水样中的氢醌测定，并且可以开发用于检测HQ。

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