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An electrochemical sensor based on Co3O4 nanosheets for lead ions determination

机译：基于CO3O4纳米片的电化学传感器铅离子测定

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摘要

In this work, Co3O4 nanosheets were fabricated on indium tin oxide (ITO) substrates by developing a simple electrochemical deposition and annealing method. The as-prepared Co3O4 nanosheets were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), attenuated total reflection infrared (ATR-IR) spectroscopy and Raman spectroscopy. The Co3O4 nanosheets modified ITO electrode was used for the electrochemical analysis of various trace lead ions by differential pulse anodic stripping voltammetry. The electrode was found to be highly selective to Pb(II) in the range of 1-100 mg L-1, and exhibited a sensitive current response with a limit of detection (LOD) of 0.52 mg L-1. Furthermore, the developed electrochemical Pb(II) sensor exhibited a high stability and reproducibility with a simple regeneration process.
机译：在这项工作中，通过开发简单的电化学沉积和退火方法，在氧化铟锡（ITO）底物上制造CO3O4纳米片。 通过扫描电子显微镜（SEM），X射线衍射（XRD），衰减的全反射红外（ATR-IR）光谱和拉曼光谱，表征了如制备的CO 3 O4纳米片。 通过差分脉冲阳极溶出伏安法用于通过差分脉冲阳极剥离伏安法用于各种痕量铅离子的电化学分析的CO3O4纳米蛋白酶。 发现电极高度选择性至1-100mg L-1的Pb（II），并具有0.52mg L-1的检测限（LOD）的敏感电流响应。 此外，开发的电化学PB（II）传感器具有具有简单再生过程的高稳定性和再现性。

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  • 来源
    《RSC Advances》 |2017年第63期|共6页
  • 作者

    Yu Lei; Zhang Ping; Dai Hongxiu; Chen Ling; Ma Houyi; Lin Meng; Shen Dazhong;

  • 作者单位

    Shandong Normal Univ Minist Educ China Key Lab Mol &

    Nanomat Probes Coll Chem Chem Engn Collaborat Innovat Ctr Functionalized Probes Chem Jinan 250014 Shandong Peoples R China;

    Shandong Normal Univ Minist Educ China Key Lab Mol &

    Nanomat Probes Coll Chem Chem Engn Collaborat Innovat Ctr Functionalized Probes Chem Jinan 250014 Shandong Peoples R China;

    Shandong Univ Sch Chem &

    Chem Engn State Educ Minist Key Lab Colloid &

    Interface Chem Jinan 250100 Shandong Peoples R China;

    Univ Jinan Sch Mat Sci &

    Engn Jinan 250022 Shandong Peoples R China;

    Shandong Univ Sch Chem &

    Chem Engn State Educ Minist Key Lab Colloid &

    Interface Chem Jinan 250100 Shandong Peoples R China;

    Shandong Univ Sch Chem &

    Chem Engn State Educ Minist Key Lab Colloid &

    Interface Chem Jinan 250100 Shandong Peoples R China;

    Shandong Normal Univ Minist Educ China Key Lab Mol &

    Nanomat Probes Coll Chem Chem Engn Collaborat Innovat Ctr Functionalized Probes Chem Jinan 250014 Shandong Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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