Size dependent electrochemical detection of trace heavy metal ions based on nano-patterned carbon sphere electrodes

Nanoscale ◽  
2016 ◽  
Vol 8 (28) ◽  
pp. 13695-13700 ◽  
Author(s):  
Lu-Hua Zhang ◽  
Wen-Cui Li ◽  
Dong Yan ◽  
Hua Wang ◽  
An-Hui Lu
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Electrochemical Detection ◽  
Heavy Metal Ions ◽  
Carbon Sphere ◽  
Size Dependent

Graphene oxide-based electrochemical sensor: a platform for ultrasensitive detection of heavy metal ions

RSC Advances ◽  
2014 ◽  
Vol 4 (47) ◽  
pp. 24653-24657 ◽  
Author(s):  
Xuezhong Gong ◽  
Yunlong Bi ◽  
Yihua Zhao ◽  
Guozhen Liu ◽  
Wey Yang Teoh
Keyword(s):  
Heavy Metal ◽  
Graphene Oxide ◽  
Metal Ions ◽  
Electrochemical Sensor ◽  
Electrochemical Detection ◽  
Heavy Metal Ions ◽  
Gold Surface ◽  
Ultrasensitive Detection ◽  
Control Electrode ◽  
Graphene Oxide Sheets

Facile functionalization of graphene oxide sheets on gold surface results in complexation-enhanced electrochemical detection of heavy metal ions, shown here for Pb2+, Cu2+ and Hg2+, with improved detection limits by two orders of magnitude relative to the control electrode.

Electrochemical detection of trace heavy metal ions using a Ln-MOF modified glass carbon electrode

2020 ◽  
Vol 281 ◽  
pp. 121032 ◽  
Author(s):  
Wei Ye ◽  
Yanping Li ◽  
Jintong Wang ◽  
Bin Li ◽  
Yuanjing Cui ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Electrochemical Detection ◽  
Heavy Metal Ions ◽  
Carbon Electrode ◽  
Glass Carbon Electrode ◽  
Glass Carbon

A study of the photodeposition over Ti/TiO2 electrode for electrochemical detection of heavy metal ions

2015 ◽  
Vol 57 ◽  
pp. 18-21 ◽  
Author(s):  
Hongchao Ma ◽  
Rui An ◽  
Lulu Chen ◽  
Yinghuan Fu ◽  
Chun Ma ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Electrochemical Detection ◽  
Heavy Metal Ions ◽  
Tio2 Electrode

Sensitive and selective electrochemical detection of heavy metal ions using amino-functionalized carbon microspheres

2016 ◽  
Vol 760 ◽  
pp. 143-150 ◽  
Author(s):  
Yu-Feng Sun ◽  
Li-Jie Zhao ◽  
Tian-Jia Jiang ◽  
Shan-Shan Li ◽  
Meng Yang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Electrochemical Detection ◽  
Heavy Metal Ions ◽  
Carbon Microspheres

Defect- and phase-engineering of Mn-mediated MoS2 nanosheets for ultrahigh electrochemical sensing of heavy metal ions: chemical interaction-driven in situ catalytic redox reactions

2018 ◽  
Vol 54 (67) ◽  
pp. 9329-9332 ◽  
Author(s):  
Wen-Yi Zhou ◽  
Shan-Shan Li ◽  
Xiang-Yu Xiao ◽  
Shi-Hua Chen ◽  
Jin-Huai Liu ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Electrochemical Detection ◽  
Heavy Metal Ions ◽  
Redox Reactions ◽  
Chemical Interaction ◽  
Electrochemical Sensing ◽  
Mos2 Nanosheets ◽  
Phase Engineering

An ultrasensitive electrochemical detection of heavy metal ions is achieved via defect- and phase-engineering of Mn-mediated MoS2 nanosheets.

Application of Graphene-Based Nanocomposites in Electrochemical Detection of Heavy Metal Ions

2020 ◽  
Vol 12 (3) ◽  
pp. 435-440 ◽  
Author(s):  
Xue Chen ◽  
Yongcun Pei
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Electrochemical Detection ◽  
Heavy Metal Ions ◽  
Electrochemical Sensors ◽  
Graphene Oxides ◽  
Experimental Conditions ◽  
Reduced Graphene ◽  
Reduced Graphene Oxides ◽  
Interference Tests

The purpose of this study was to explore the application of graphene-based nanocomposites in electrochemical detection of heavy metal ions. In this study, Graphene oxide (GO) was synthesized with improved Hummers method, and flower-like MoS2/rGO nanocomposite was synthesized with hydrothermal method and used as electrode modification material. In addition, scanning electron microscopy (SEM) and X-ray images were used to observe the characterization of the prepared samples and to detect the sensitivity of four heavy metal ions under optimal experimental conditions. The results showed that the reduced graphene oxides were coated with a large number of flower-like MoS2 and laid on the reduced graphene oxides. And in electrochemical experiments, adsorption experiments and interference tests, MoS2/rGO nanocomposites showed satisfactory performance for Pb(II). Therefore, this study provided a new strategy for the development of new nanocomposites composites as electrochemical sensors to detect the heavy metal ions in the aquatic environment.

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