Hydrogels of PANI doped with Fe3O4 and GO for highly stable sensor for sensitive and selective determination of heavy metal ions

K. S.Manjunatha Kumara; P. Shivakumar; V. Ganesh; Srinivasa Budagumpi; Shubhankar Kumar Bose; K. Hareesh; D. H. Nagaraju

doi:10.1016/j.inoche.2023.111553

Hydrogels of PANI doped with Fe₃O₄ and GO for highly stable sensor for sensitive and selective determination of heavy metal ions

K. S.Manjunatha Kumara
, P. Shivakumar
, V. Ganesh
, Srinivasa Budagumpi
, Shubhankar Kumar Bose
, K. Hareesh^*
, D. H. Nagaraju

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

Heavy metal ion (HMI) pollution is threat to human health and environment. Here, a sensor for the electrochemical detection (ECD) of Pb⁺² along with simultaneous detection of Cd⁺², Cu⁺² and Hg⁺² utilizing the synergic effect of dopants like graphene-oxide (GO) and iron oxide (Fe₃O₄) into hydrogels of polyaniline (H-PANI/Fe-GO) displays an excellent square wave anodic stripping voltammetry (SWASV) performance towards Pb⁺², with an impressive limit of detection (LOD) of 5.15 nM. The oxidative peaks were observed for simultaneous detection at −0.7306, −0.4899, −0.0092 and 0.3417 V vs. Ag/AgCl for Cd⁺², Pb⁺², Cu⁺² and Hg⁺² with good sensitivity, reproducibility and stability. Additionally, H-PANI/Fe-GO sensor is effectively employed to detect Pb⁺² in real water samples.

Original language	English
Article number	111553
Journal	Inorganic Chemistry Communications
Volume	158
DOIs	https://doi.org/10.1016/j.inoche.2023.111553
Publication status	Published - 12-2023

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 3 Good Health and Well-being

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1016/j.inoche.2023.111553

Cite this

@article{48c7e38ea45a4cacad2cd7d16aa16837,

title = "Hydrogels of PANI doped with Fe3O4 and GO for highly stable sensor for sensitive and selective determination of heavy metal ions",

abstract = "Heavy metal ion (HMI) pollution is threat to human health and environment. Here, a sensor for the electrochemical detection (ECD) of Pb+2 along with simultaneous detection of Cd+2, Cu+2 and Hg+2 utilizing the synergic effect of dopants like graphene-oxide (GO) and iron oxide (Fe3O4) into hydrogels of polyaniline (H-PANI/Fe-GO) displays an excellent square wave anodic stripping voltammetry (SWASV) performance towards Pb+2, with an impressive limit of detection (LOD) of 5.15 nM. The oxidative peaks were observed for simultaneous detection at −0.7306, −0.4899, −0.0092 and 0.3417 V vs. Ag/AgCl for Cd+2, Pb+2, Cu+2 and Hg+2 with good sensitivity, reproducibility and stability. Additionally, H-PANI/Fe-GO sensor is effectively employed to detect Pb+2 in real water samples.",

author = "Kumara, \{K. S.Manjunatha\} and P. Shivakumar and V. Ganesh and Srinivasa Budagumpi and Bose, \{Shubhankar Kumar\} and K. Hareesh and Nagaraju, \{D. H.\}",

note = "Funding Information: We are appreciative of the financial support from the Department of Science and Technology, Technology Development Transfer Division under the Device Development Program (DDP) (Grant No. DST/TDT/DDP-33/2018 ). This work was also partially supported by SEED money from REVA University ( RU:EST:CHE:2022/19 ). Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2023",

month = dec,

doi = "10.1016/j.inoche.2023.111553",

language = "English",

volume = "158",

journal = "Inorganic Chemistry Communications",

issn = "1387-7003",

publisher = "Elsevier B.V.",

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T1 - Hydrogels of PANI doped with Fe3O4 and GO for highly stable sensor for sensitive and selective determination of heavy metal ions

AU - Kumara, K. S.Manjunatha

AU - Shivakumar, P.

AU - Ganesh, V.

AU - Budagumpi, Srinivasa

AU - Bose, Shubhankar Kumar

AU - Hareesh, K.

AU - Nagaraju, D. H.

N1 - Funding Information: We are appreciative of the financial support from the Department of Science and Technology, Technology Development Transfer Division under the Device Development Program (DDP) (Grant No. DST/TDT/DDP-33/2018 ). This work was also partially supported by SEED money from REVA University ( RU:EST:CHE:2022/19 ). Publisher Copyright: © 2023 Elsevier B.V.

PY - 2023/12

Y1 - 2023/12

N2 - Heavy metal ion (HMI) pollution is threat to human health and environment. Here, a sensor for the electrochemical detection (ECD) of Pb+2 along with simultaneous detection of Cd+2, Cu+2 and Hg+2 utilizing the synergic effect of dopants like graphene-oxide (GO) and iron oxide (Fe3O4) into hydrogels of polyaniline (H-PANI/Fe-GO) displays an excellent square wave anodic stripping voltammetry (SWASV) performance towards Pb+2, with an impressive limit of detection (LOD) of 5.15 nM. The oxidative peaks were observed for simultaneous detection at −0.7306, −0.4899, −0.0092 and 0.3417 V vs. Ag/AgCl for Cd+2, Pb+2, Cu+2 and Hg+2 with good sensitivity, reproducibility and stability. Additionally, H-PANI/Fe-GO sensor is effectively employed to detect Pb+2 in real water samples.

AB - Heavy metal ion (HMI) pollution is threat to human health and environment. Here, a sensor for the electrochemical detection (ECD) of Pb+2 along with simultaneous detection of Cd+2, Cu+2 and Hg+2 utilizing the synergic effect of dopants like graphene-oxide (GO) and iron oxide (Fe3O4) into hydrogels of polyaniline (H-PANI/Fe-GO) displays an excellent square wave anodic stripping voltammetry (SWASV) performance towards Pb+2, with an impressive limit of detection (LOD) of 5.15 nM. The oxidative peaks were observed for simultaneous detection at −0.7306, −0.4899, −0.0092 and 0.3417 V vs. Ag/AgCl for Cd+2, Pb+2, Cu+2 and Hg+2 with good sensitivity, reproducibility and stability. Additionally, H-PANI/Fe-GO sensor is effectively employed to detect Pb+2 in real water samples.

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