• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Novel electrochemical preparation of gold nanoparticles decorated on a reduced graphene oxide–fullerene composite for the highly sensitive electrochemical detection of nitrite
【24h】

Novel electrochemical preparation of gold nanoparticles decorated on a reduced graphene oxide–fullerene composite for the highly sensitive electrochemical detection of nitrite

机译：在亚硝酸盐高敏感的电化学检测中，在氧化石墨烯氧化物 - 富勒烯复合材料上装饰的金纳米颗粒的新型电化学制备

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this study, we report a novel amperometric nitrite sensor based on a glassy carbon electrode (GCE) modified with gold nanoparticles (AuNP) decorated reduced graphene oxide–fullerene (RGO–C60) composite. The RGO–C60/AuNPs composite modified electrode was prepared via the electrochemical reduction of a GO–C60 composite modified electrode in pH 3 solution containing 5 mM gold( III ) chloride trihydrate at the constant potential of ?1.4 V for 200 s. The as-prepared materials were characterized using scanning electron microscopy, and Raman and Fourier transform infrared spectroscopy. Cyclic voltammetry results confirm that the RGO–C60/AuNPs composite modified electrode has high catalytic activity for the detection of nitrite compared with other modified electrodes. The RGO–C60/AuNPs modified electrode exhibits a stable amperometric response for nitrite in the liner concentration range of 0.05–1175.32 μM and its detection limit was estimated to be 0.013 ± 0.003 μM. The modified electrode shows high selectivity towards the determination of nitrite in the presence of potentially active common metal ions. In addition, the fabricated sensor exhibits many advantages for the detection of nitrite such as fast amperometric response, excellent operational and storage stability and appropriate practicality.
机译：在这项研究中，我们报告了基于用金纳米颗粒（AUNP）的玻璃碳电极（GCE）的新型亚体亚硝酸盐传感器，装饰的碳烯氧化物 - 富勒烯（RGO-C60）复合材料。通过在恒定的Δ1.4V的恒定电位下，通过在含有5mm金（III）氯化物三水合物的pH 3溶液中的PH-C60复合改性电极的电化学还原制备RGO-C60 / AUNPS复合电极。使用扫描电子显微镜以及拉曼和傅里叶变换红外光谱表征以制备的材料。循环伏安法结果证实，RGO-C60 / AUNPS复合材料改性电极具有高催化活性，用于检测亚硝酸盐与其他改性电极相比。 RGO-C60 / AUNPS改性电极在0.05-1175.32μm的衬里浓度范围内表现出亚硝酸盐的稳定慢性响应，并且其检测限估计为0.013±0.003μm。改性电极在潜在的普通金属离子存在下朝着确定亚硝酸盐的测定方面具有高选择性。此外，制造的传感器表现出许多用于检测亚硝酸盐的优点，例如快速的电压响应，优异的操作和储存稳定性以及适当的实用性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号