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Facile synthesis of g-C3N4 with various morphologies for application in electrochemical detection
RSC Advances ( IF 3.9 ) Pub Date : 2019-03-11 00:00:00 , DOI: 10.1039/c8ra10166c
Wenlian Wang 1, 2 , Junming Zhao 1, 2 , Youyi Sun 3 , Hui Zhang 3
RSC Advances ( IF 3.9 ) Pub Date : 2019-03-11 00:00:00 , DOI: 10.1039/c8ra10166c
Wenlian Wang 1, 2 , Junming Zhao 1, 2 , Youyi Sun 3 , Hui Zhang 3
Affiliation
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In the present study, g-C3N4 with various morphologies was successfully synthesized via a variety of facile in situ methods. The as-prepared products were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy and X-ray diffraction (XRD). The results obtained using square wave anodic stripping voltammetry (SWASV) showed that when g-C3N4 was applied as an electrochemical sensor, it exhibited excellent sensitivity and selectivity for the detection of heavy metal ions including Pb(II), Cu(II) and Hg(II). Compared to nanoporous graphitic carbon nitride (npg-C3N4) and g-C3N4 nanosheet-modified glass carbon electrode (GCE), g-C3N4 successfully realized the individual and simultaneous detection of four target heavy ions for the first time. In particular, g-C3N4 displayed significant electrocatalytic activity towards Hg(II) with a good sensitivity of 18.180 μA μM−1 and 35.923 μA μM−1 under the individual and simultaneous determination conditions, respectively. The sensitivity for simultaneous determination was almost 2 times that of the individual determination. Moreover, the fabricated electrochemical sensor showed good anti-interference, stability and repeatability; this indicated significant potential of the proposed materials for application in high-performance electrochemical sensors for the individual and simultaneous detection of heavy metal ions.
中文翻译：
用于电化学检测的各种形态的 g-C3N4 的简便合成
在本研究中，通过多种简便的原位方法成功合成了具有多种形态的gC 3 N 4 。所制备的产品通过扫描电子显微镜（SEM）、透射电子显微镜（TEM）、拉曼光谱和X射线衍射（XRD）进行了表征。方波阳极溶出伏安法（SWASV）的结果表明，当gC 3 N 4用作电化学传感器时，它对重金属离子Pb( II )、Cu( II )和汞（Ⅱ）。与纳米多孔石墨氮化碳（npg-C 3 N 4）和gC 3 N 4纳米片改性玻璃碳电极（GCE）相比，gC 3 N 4首次成功实现了四种目标重离子的单独和同时检测。特别是gC 3 N 4对Hg( II ) 表现出显着的电催化活性，灵敏度分别为18.180 μA μM -1和35.923 μA μM -1分别在单独和同时测定条件下。同时测定的灵敏度几乎是单独测定的2倍。此外，制备的电化学传感器具有良好的抗干扰性、稳定性和重复性；这表明所提出的材料在用于单独和同时检测重金属离子的高性能电化学传感器中具有巨大的潜力。
更新日期：2019-03-11
中文翻译：
用于电化学检测的各种形态的 g-C3N4 的简便合成
在本研究中，通过多种简便的原位方法成功合成了具有多种形态的gC 3 N 4 。所制备的产品通过扫描电子显微镜（SEM）、透射电子显微镜（TEM）、拉曼光谱和X射线衍射（XRD）进行了表征。方波阳极溶出伏安法（SWASV）的结果表明，当gC 3 N 4用作电化学传感器时，它对重金属离子Pb( II )、Cu( II )和汞（Ⅱ）。与纳米多孔石墨氮化碳（npg-C 3 N 4）和gC 3 N 4纳米片改性玻璃碳电极（GCE）相比，gC 3 N 4首次成功实现了四种目标重离子的单独和同时检测。特别是gC 3 N 4对Hg( II ) 表现出显着的电催化活性，灵敏度分别为18.180 μA μM -1和35.923 μA μM -1分别在单独和同时测定条件下。同时测定的灵敏度几乎是单独测定的2倍。此外，制备的电化学传感器具有良好的抗干扰性、稳定性和重复性；这表明所提出的材料在用于单独和同时检测重金属离子的高性能电化学传感器中具有巨大的潜力。
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