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Nanocarbon‐based Electrochemical Detection of Heavy Metals
Author(s) -
Pandey Shailendra Kumar,
Singh Priti,
Singh Jyoti,
Sachan Sadhana,
Srivastava Sameer,
Singh Sunil Kumar
Publication year - 2016
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201600173
Subject(s) - electrochemistry , context (archaeology) , metal ions in aqueous solution , graphene , carbon fibers , materials science , carbon nanotube , heavy metals , nanotechnology , nanomaterials , metal , electrochemical gas sensor , selectivity , electrode , environmental chemistry , chemistry , metallurgy , catalysis , organic chemistry , composite number , composite material , paleontology , biology
Heavy metal species are toxic, non‐decomposable molecules which exist in our ecological systems and food chains, eventually exposing us to serious health hazards and economic damage. In this context, various attempts have been made for sensitive detection of heavy metal ions through electrochemical sensor. Carbon nanomaterials endowed with unique physiochemical properties were found to be most suitable for electrochemical detection of heavy metal due to their ease to modify, high sensitivity, good selectivity and high reproducibility. Here, we present a critical review about detection of heavy metals using nanocarbon with focus on graphene and carbon nanotubes in various sources of water, soil, and foods for fast and sensitive detection of heavy metal ions. We have evaluated the current trends and discussed the major challenges associated with electrode modification and electrochemical analysis with the aim to achieve the best sensing performance.