Sulphur Ligand Functionalized Carbon Nanotubes for Removal of mercury from waste water–experimental and density functional theoretical study

A. K. Singha Deb, N. Dhume, K. Dasgupta, S. M. Ali, K. T. Shenoy, S. Mohan

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Owing to the strong interaction of mercury with sulphur, thiol(SH) and dithiocarbamate (DTC) ligands were grafted on multi-walled carbon nanotubes (MWCNTs) and were characterized by elemental analysis, SEM-EDS, FTIR, and XRD analysis. The maximum adsorption capacity of MWCNT-DTC was found to be 3.5 times higher than that of MWCNT-SH at the optimum pH of 6. The kinetics and equilibrium data revealed that the adsorption of Hg 2+ follow pseudo-first-order and Langmuir isotherm model, respectively. Density functional theoretical calculation performed for the interaction of Hg 2+ ion with SWCNT-DTC and SWCNT-SH corroborated the experimental output that former have greater adsorption than the later.Test- L2.

Original languageEnglish
Pages (from-to)1573-1587
Number of pages15
JournalSeparation Science and Technology (Philadelphia)
Volume54
Issue number10
DOIs
Publication statusPublished - 03-07-2019
Externally publishedYes

Fingerprint

Carbon Nanotubes
Mercury
Sulfur
Sulfhydryl Compounds
Carbon nanotubes
Ligands
Adsorption
Density functional theory
Isotherms
Energy dispersive spectroscopy
Ions
Scanning electron microscopy
Kinetics
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Process Chemistry and Technology
  • Filtration and Separation

Cite this

Singha Deb, A. K. ; Dhume, N. ; Dasgupta, K. ; Ali, S. M. ; Shenoy, K. T. ; Mohan, S. / Sulphur Ligand Functionalized Carbon Nanotubes for Removal of mercury from waste water–experimental and density functional theoretical study. In: Separation Science and Technology (Philadelphia). 2019 ; Vol. 54, No. 10. pp. 1573-1587.
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Sulphur Ligand Functionalized Carbon Nanotubes for Removal of mercury from waste water–experimental and density functional theoretical study. / Singha Deb, A. K.; Dhume, N.; Dasgupta, K.; Ali, S. M.; Shenoy, K. T.; Mohan, S.

In: Separation Science and Technology (Philadelphia), Vol. 54, No. 10, 03.07.2019, p. 1573-1587.

Research output: Contribution to journalArticle

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AU - Singha Deb, A. K.

AU - Dhume, N.

AU - Dasgupta, K.

AU - Ali, S. M.

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