A highly-sensitive electrochemical sensor for the simultaneous detection of Cd2+ and Pb2+ using liquid phase-exfoliated graphene

2014 ◽  
Vol 6 (15) ◽  
pp. 5760-5765 ◽  
Author(s):  
Guishen Liu ◽  
Jianpeng Chen ◽  
Xiaodong Hou ◽  
Wensheng Huang
Keyword(s):  
Heavy Metal ◽  
Liquid Phase ◽  
Metal Ions ◽  
Electrochemical Sensor ◽  
Analytical Methods ◽  
Heavy Metal Ions ◽  
Simultaneous Detection ◽  
Toxic Heavy Metal ◽  
Exfoliated Graphene ◽  
Highly Sensitive

It is quite important to develop sensitive and simple analytical methods for the detection of toxic heavy metal ions, such as Cd2+ and Pb2+.

A Screen Printed Phenanthroline-Based Flexible Electrochemical Sensor for Selective Detection of Toxic Heavy Metal Ions

2016 ◽  
Vol 16 (24) ◽  
pp. 8678-8684 ◽  
Author(s):  
Sai Guruva Reddy Avuthu ◽  
Jared Thomas Wabeke ◽  
Binu Baby Narakathu ◽  
Dinesh Maddipatla ◽  
Jaliya Samarakoon Arachchilage ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Electrochemical Sensor ◽  
Heavy Metal Ions ◽  
Selective Detection ◽  
Toxic Heavy Metal ◽  
Screen Printed

scholarly journals Sensitive electrochemical sensor based on poly(l-glutamic acid)/graphene oxide composite material for simultaneous detection of heavy metal ions

RSC Advances ◽  
2019 ◽  
Vol 9 (30) ◽  
pp. 17325-17334 ◽  
Author(s):  
Wei Yi ◽  
Zihua He ◽  
Junjie Fei ◽  
Xiaohua He
Keyword(s):  
Heavy Metal ◽  
Composite Material ◽  
Metal Ions ◽  
Electrochemical Sensor ◽  
Heavy Metal Ions ◽  
High Stability ◽  
Simultaneous Detection ◽  
High Sensitivity ◽  
Good Reproducibility ◽  
Oxide Composite Material

A novel electrochemical sensor with high stability and good reproducibility for the simultaneous detection of heavy metal ions was prepared by using PGA/GO to modify the GCE, showing high sensitivity of superior to most of the reported values.

Facile and green fabrication of size-controlled AuNPs/CNFs hybrids for the highly sensitive simultaneous detection of heavy metal ions

2016 ◽  
Vol 196 ◽  
pp. 422-430 ◽  
Author(s):  
Bin Zhang ◽  
JiaDong Chen ◽  
Han Zhu ◽  
TingTing Yang ◽  
MeiLing Zou ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Simultaneous Detection ◽  
Highly Sensitive ◽  
Size Controlled

scholarly journals Electrochemical Sensor of Double-Thiol Linked PProDOT@Si Composite for Simultaneous Detection of Cd(II), Pb(II), and Hg(II)

Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 815 ◽  
Author(s):  
Mihray Abdulla ◽  
Ahmat Ali ◽  
Ruxangul Jamal ◽  
Tursunnisahan Bakri ◽  
Wei Wu ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Electron Microscope ◽  
Porous Silicon ◽  
Electrochemical Performance ◽  
Metal Ions ◽  
Electrochemical Sensor ◽  
Heavy Metal Ions ◽  
High Selectivity ◽  
Simultaneous Detection ◽  
Silicon Spheres

Heavy metal ions in water, cosmetics, and arable land have become a world-wide issue as they cause a variety of diseases and even death to humans and animals when a certain level is exceeded. Therefore, it is necessary to development a new kind of sensor material for the determination of heavy metal ions. In this paper, we present an electrochemical sensor based on composite material (thiol(–SH) grafted poly(3,4-proplenedioxythiophene) (PProDOT(MeSH)2)/ porous silicon spheres (Si) composite, denoted as PProDOT(MeSH)2@Si) from the incorporation of thiol(–SH) grafted poly(3,4-proplenedioxythiophene) (PProDOT(MeSH)2) with porous silicon spheres (Si) for the electrochemical detection of heavy metal ions (Cd(II), Pb(II), and Hg(II)). The PProDOT(MeSH)2@Si composite was synthesized via a chemical oxidative polymerization method. The structure and morphology of PProDOT(MeSH)2@Si composite were characterized by Fourier transform infrared (FT-IR), Ultraviolet–visible spectroscopy (UV–Vis), X-ray diffraction (XRD), scanning electron microscope (SEM), Transmission electron microscope (TEM), and Brunauer−Emmett−Teller (BET). Furthermore, the electrochemical performance of PProDOT(MeSH)2@Si was evaluated by detecting of Cd(II), Pb(II), and Hg(II) ions using the differential pulse voltammetry (DPV) method. The relationship between structural properties and the electrochemical performance was systematically studied. The results showed that the entry of two thiol-based chains to the monomer unit resulted in an increase in electrochemical sensitivity in PProDOT(MeSH)2, which was related to the interaction between thiol group(-SH) and heavy metal ions. And, the combination of PProDOT(MeSH)2 with Si could improve the electrocatalytic efficiency of the electrode material. The PProDOT(MeSH)2@Si/GCE exhibited high selectivity and sensitivity in the rage of 0.04 to 2.8, 0.024 to 2.8, and 0.16 to 3.2 μM with the detection limit of 0.00575, 0.0027, and 0.0017 µM toward Cd(II), Pb(II), and Hg(II), respectively. The interference studies demonstrated that the PProDOT(MeSH)2@Si/GCE possessed a low mutual interference and high selectivity for simultaneous detection of Cd(II), Pb(II), and Hg(II) ions.

scholarly journals Novel nanoscale Yb-MOF used as highly efficient electrode for simultaneous detection of heavy metal ions

2021 ◽  
Vol 56 (13) ◽  
pp. 8172-8185
Author(s):  
Manh B. Nguyen ◽  
Dau Thi Ngoc Nga ◽  
Vu Thi Thu ◽  
Benoît Piro ◽  
Thuan Nguyen Pham Truong ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Simultaneous Detection ◽  
Highly Efficient
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