Synthetic sodalite doped with silver nanoparticles: characterization and mercury (II) removal from aqueous solutions

Z. Tauanov; P. E. Tsakiridis; D. Shah; V. J. Inglezakis

doi:10.1080/10934529.2019.1611129

Synthetic sodalite doped with silver nanoparticles: characterization and mercury (II) removal from aqueous solutions

Z. Tauanov, P. E. Tsakiridis, D. Shah, V. J. Inglezakis^*

^*Corresponding author for this work

Chemical And Process Engineering

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

21 Citations (Scopus)

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Abstract

In this work, a novel silver nanoparticles-doped synthetic sodalitic composite was synthesized and characterized using advanced characterization methods, namely TEM-EDS, XRD, SEM, XRF, BET, zeta potential, and particle size analysis. The synthesized nanocomposite was used for the removal of Hg²⁺ from 10 ppm aqueous solutions of initial pH equal to 2. The results showed that the sodalitic nanocomposites removed up to 98.65% of Hg²⁺, which is ∼16% and 70% higher than the removal achieved by sodalite and parent coal fly ash, respectively. The findings revealed that the Hg²⁺ removal mechanism is a multifaceted mechanism that predominantly involves adsorption, precipitation and Hg-Ag amalgamation. The study of the anions effect (Cl⁻, NO₃⁻, C₂H₃O₂⁻, and SO₄²⁻) indicated that the Hg²⁺ uptake is comparatively higher when Cl⁻ anions co-exist with Hg²⁺ in the solution.

Original language	English
Pages (from-to)	951-959
Number of pages	9
Journal	Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
Volume	54
Issue number	9
DOIs	https://doi.org/10.1080/10934529.2019.1611129
Publication status	Published - 29 Jul 2019

Funding

This research work was carried out with financial support of Nazarbayev University Research Council in the framework of project entitled “Hyperstoichiometry Activity in Metal Nanoparticle Interaction” (Project SOE2015009).

Keywords

coal fly ash
mercury removal
nanocomposites
silver nanoparticles
synthetic sodalite
water treatment

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Tauanov-etal-JESHA-2019-Synthetic-sodalite-doped-with-silver-nanoparticles-characterization-and-mercuryAccepted author manuscript, 1.24 MB

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title = "Synthetic sodalite doped with silver nanoparticles: characterization and mercury (II) removal from aqueous solutions",

abstract = "In this work, a novel silver nanoparticles-doped synthetic sodalitic composite was synthesized and characterized using advanced characterization methods, namely TEM-EDS, XRD, SEM, XRF, BET, zeta potential, and particle size analysis. The synthesized nanocomposite was used for the removal of Hg2+ from 10 ppm aqueous solutions of initial pH equal to 2. The results showed that the sodalitic nanocomposites removed up to 98.65% of Hg2+, which is ∼16% and 70% higher than the removal achieved by sodalite and parent coal fly ash, respectively. The findings revealed that the Hg2+ removal mechanism is a multifaceted mechanism that predominantly involves adsorption, precipitation and Hg-Ag amalgamation. The study of the anions effect (Cl−, NO3−, C2H3O2−, and SO42−) indicated that the Hg2+ uptake is comparatively higher when Cl− anions co-exist with Hg2+ in the solution.",

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Synthetic sodalite doped with silver nanoparticles: characterization and mercury (II) removal from aqueous solutions. / Tauanov, Z.; Tsakiridis, P. E.; Shah, D. et al.
In: Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering, Vol. 54, No. 9, 29.07.2019, p. 951-959.

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

TY - JOUR

T1 - Synthetic sodalite doped with silver nanoparticles

T2 - characterization and mercury (II) removal from aqueous solutions

AU - Tauanov, Z.

AU - Tsakiridis, P. E.

AU - Shah, D.

AU - Inglezakis, V. J.

PY - 2019/7/29

Y1 - 2019/7/29

N2 - In this work, a novel silver nanoparticles-doped synthetic sodalitic composite was synthesized and characterized using advanced characterization methods, namely TEM-EDS, XRD, SEM, XRF, BET, zeta potential, and particle size analysis. The synthesized nanocomposite was used for the removal of Hg2+ from 10 ppm aqueous solutions of initial pH equal to 2. The results showed that the sodalitic nanocomposites removed up to 98.65% of Hg2+, which is ∼16% and 70% higher than the removal achieved by sodalite and parent coal fly ash, respectively. The findings revealed that the Hg2+ removal mechanism is a multifaceted mechanism that predominantly involves adsorption, precipitation and Hg-Ag amalgamation. The study of the anions effect (Cl−, NO3−, C2H3O2−, and SO42−) indicated that the Hg2+ uptake is comparatively higher when Cl− anions co-exist with Hg2+ in the solution.

AB - In this work, a novel silver nanoparticles-doped synthetic sodalitic composite was synthesized and characterized using advanced characterization methods, namely TEM-EDS, XRD, SEM, XRF, BET, zeta potential, and particle size analysis. The synthesized nanocomposite was used for the removal of Hg2+ from 10 ppm aqueous solutions of initial pH equal to 2. The results showed that the sodalitic nanocomposites removed up to 98.65% of Hg2+, which is ∼16% and 70% higher than the removal achieved by sodalite and parent coal fly ash, respectively. The findings revealed that the Hg2+ removal mechanism is a multifaceted mechanism that predominantly involves adsorption, precipitation and Hg-Ag amalgamation. The study of the anions effect (Cl−, NO3−, C2H3O2−, and SO42−) indicated that the Hg2+ uptake is comparatively higher when Cl− anions co-exist with Hg2+ in the solution.

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KW - water treatment

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Synthetic sodalite doped with silver nanoparticles: characterization and mercury (II) removal from aqueous solutions

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