Journal ArticleDOI
SnO2/Reduced Graphene Oxide Nanocomposite for the Simultaneous Electrochemical Detection of Cadmium(II), Lead(II), Copper(II), and Mercury(II): An Interesting Favorable Mutual Interference
TLDR
In this paper, a well-known gas sensing material SnO2 in combination with reduced graphene oxide was used in heavy metal ions detection for the first time, which could be used for the simultaneous and selective electrochemical detection of ultratrace Cd(II), Pb(II, Cu(II) and Hg(II).Abstract:
A well-known gas sensing material SnO2 in combination with reduced graphene oxide was used in heavy metal ions detection for the first time. This work reports the detailed study on the SnO2/reduced graphene oxide nanocomposite modified glass carbon electrode, which could be used for the simultaneous and selective electrochemical detection of ultratrace Cd(II), Pb(II), Cu(II), and Hg(II) in drinking water. The SnO2/reduced graphene oxide nanocomposite electrode was characterized voltammetrically using redox couples (Fe(CN)63–/4–), complemented with electrochemical impedance spectroscopy (EIS). Square wave anodic stripping voltammetry (SWASV) has been used for the detection of Cd(II), Pb(II), Cu(II), and Hg(II). The detection limit (3σ method) of the SnO2/reduced graphene oxide nanocomposite modified GCE toward Cd(II), Pb(II), Cu(II) and Hg(II) is 1.015 × 10–10 M, 1.839 × 10–10 M, 2.269 × 10–10 M, and 2.789 × 10–10 M, respectively, which is very well below the guideline value given by the World Health Organ...read more
Citations
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A review on detection of heavy metal ions in water – An electrochemical approach
Manju Bhargavi Gumpu,Swaminathan Sethuraman,Uma Maheswari Krishnan,John Bosco Balaguru Rayappan +3 more
TL;DR: In this article, the toxicity mechanisms of various metal ions and their relationship towards the induction of oxidative stress have been summarized, and electrochemical biosensors employed in the detection of metal ions with various interfaces have been highlighted.
Journal ArticleDOI
A review on various electrochemical techniques for heavy metal ions detection with different sensing platforms
TL;DR: This review presents various electrochemical detection techniques for heavy metal ions those are user friendly, low cost, provides on-site and real time monitoring as compared to other spectroscopic and optical techniques.
Journal ArticleDOI
Graphene electrochemistry: fundamental concepts through to prominent applications
TL;DR: Graphene Electrochemistry as discussed by the authors is an area of interest in the field of electrochemistry, where graphene has been reported to be beneficial in various applications ranging from sensing through to energy storage and generation and carbon based molecular electronics.
Journal ArticleDOI
Flexible Graphene-Based Wearable Gas and Chemical Sensors
TL;DR: The role of graphene in fabricating flexible gas sensors for the detection of various hazardous gases, including nitrogen dioxide, ammonia, hydrogen, hydrogen sulfide, carbon dioxide, sulfur dioxide, and humidity in wearable technology, is discussed.
Journal ArticleDOI
Nanostructured Sensors for Detection of Heavy Metals: A Review
TL;DR: In this article, the authors present a recent advance in optical, electrochemical and field-effect transistor sensors for heavy metal detection, focusing on colorimetric, fluorescent, surface-enhanced Raman scattering and surface plasmon resonance devices.
References
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Enhanced Cyclic Performance and Lithium Storage Capacity of SnO2/Graphene Nanoporous Electrodes with Three-Dimensionally Delaminated Flexible Structure
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