Synthesis and application of hydride silica composites for rapid and facile removal of aqueous mercury

Kseniia V. Katok, Raymond L D Whitby, Franck Fayon, Sylvie Bonnamy, Sergey V. Mikhalovsky, Andrew B. Cundy

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The adsorption of ionic mercury(II) from aqueous solution on functionalized hydride silicon materials was investigated. The adsorbents were prepared by modification of mesoporous silica C-120 with triethoxysilane or by converting alkoxysilane into siloxanes by reaction with acetic acid. Mercury adsorption isotherms at 20 °C are reported, and maximum mercury loadings were determined by Langmuir fitting. Adsorbents exhibited efficient and rapid removal of ionic mercury from aqueous solution, with a maximum mercury loading of approximately 0.22 and 0.43 mmol of Hg g-1 of silica C-120 and polyhedral oligomeric silsesquioxane (POSS) xerogel, respectively. Adsorption efficiency remained almost constant from pH 2.7 to 7. These inexpensive adsorbents exhibiting rapid assembly, low pH sensitivity, and high reactivity and capacity, are potential candidates as effective materials for mercury decontamination in natural waters and industrial effluents. Catch you because I can: Hydride silica adsorbents show efficient and rapid redox-driven removal of ionic mercury from aqueous solution, such as in natural waters and industrial effluents, with a maximum mercury loading of approximately 0.22 and 0.43 mmol of Hg g-1 on mesoporous silica C-120 and polyhedral oligomeric silsesquioxane xerogels, respectively. Adsorption efficiency remains almost constant from pH 2.7 to 7.

Original languageEnglish
Pages (from-to)4126-4133
Number of pages8
JournalChemPhysChem
Volume14
Issue number18
DOIs
Publication statusPublished - Dec 16 2013
Externally publishedYes

Fingerprint

Mercury
hydrides
silicon dioxide
composite materials
adsorbents
Composite materials
synthesis
Adsorbents
Silicon Dioxide
adsorption
xerogels
effluents
Xerogels
aqueous solutions
Adsorption
Effluents
decontamination
Siloxanes
siloxanes
silica hydride

Keywords

  • adsorption
  • hydride silica
  • mercury
  • rapid uptake
  • water remediation

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Atomic and Molecular Physics, and Optics

Cite this

Katok, K. V., Whitby, R. L. D., Fayon, F., Bonnamy, S., Mikhalovsky, S. V., & Cundy, A. B. (2013). Synthesis and application of hydride silica composites for rapid and facile removal of aqueous mercury. ChemPhysChem, 14(18), 4126-4133. https://doi.org/10.1002/cphc.201300832

Synthesis and application of hydride silica composites for rapid and facile removal of aqueous mercury. / Katok, Kseniia V.; Whitby, Raymond L D; Fayon, Franck; Bonnamy, Sylvie; Mikhalovsky, Sergey V.; Cundy, Andrew B.

In: ChemPhysChem, Vol. 14, No. 18, 16.12.2013, p. 4126-4133.

Research output: Contribution to journalArticle

Katok, KV, Whitby, RLD, Fayon, F, Bonnamy, S, Mikhalovsky, SV & Cundy, AB 2013, 'Synthesis and application of hydride silica composites for rapid and facile removal of aqueous mercury', ChemPhysChem, vol. 14, no. 18, pp. 4126-4133. https://doi.org/10.1002/cphc.201300832
Katok KV, Whitby RLD, Fayon F, Bonnamy S, Mikhalovsky SV, Cundy AB. Synthesis and application of hydride silica composites for rapid and facile removal of aqueous mercury. ChemPhysChem. 2013 Dec 16;14(18):4126-4133. https://doi.org/10.1002/cphc.201300832
Katok, Kseniia V. ; Whitby, Raymond L D ; Fayon, Franck ; Bonnamy, Sylvie ; Mikhalovsky, Sergey V. ; Cundy, Andrew B. / Synthesis and application of hydride silica composites for rapid and facile removal of aqueous mercury. In: ChemPhysChem. 2013 ; Vol. 14, No. 18. pp. 4126-4133.
@article{3b3bef64df1e4d0b8aa58295723c1cc2,
title = "Synthesis and application of hydride silica composites for rapid and facile removal of aqueous mercury",
abstract = "The adsorption of ionic mercury(II) from aqueous solution on functionalized hydride silicon materials was investigated. The adsorbents were prepared by modification of mesoporous silica C-120 with triethoxysilane or by converting alkoxysilane into siloxanes by reaction with acetic acid. Mercury adsorption isotherms at 20 °C are reported, and maximum mercury loadings were determined by Langmuir fitting. Adsorbents exhibited efficient and rapid removal of ionic mercury from aqueous solution, with a maximum mercury loading of approximately 0.22 and 0.43 mmol of Hg g-1 of silica C-120 and polyhedral oligomeric silsesquioxane (POSS) xerogel, respectively. Adsorption efficiency remained almost constant from pH 2.7 to 7. These inexpensive adsorbents exhibiting rapid assembly, low pH sensitivity, and high reactivity and capacity, are potential candidates as effective materials for mercury decontamination in natural waters and industrial effluents. Catch you because I can: Hydride silica adsorbents show efficient and rapid redox-driven removal of ionic mercury from aqueous solution, such as in natural waters and industrial effluents, with a maximum mercury loading of approximately 0.22 and 0.43 mmol of Hg g-1 on mesoporous silica C-120 and polyhedral oligomeric silsesquioxane xerogels, respectively. Adsorption efficiency remains almost constant from pH 2.7 to 7.",
keywords = "adsorption, hydride silica, mercury, rapid uptake, water remediation",
author = "Katok, {Kseniia V.} and Whitby, {Raymond L D} and Franck Fayon and Sylvie Bonnamy and Mikhalovsky, {Sergey V.} and Cundy, {Andrew B.}",
year = "2013",
month = "12",
day = "16",
doi = "10.1002/cphc.201300832",
language = "English",
volume = "14",
pages = "4126--4133",
journal = "ChemPhysChem",
issn = "1439-4235",
publisher = "Wiley-VCH Verlag",
number = "18",

}

TY - JOUR

T1 - Synthesis and application of hydride silica composites for rapid and facile removal of aqueous mercury

AU - Katok, Kseniia V.

AU - Whitby, Raymond L D

AU - Fayon, Franck

AU - Bonnamy, Sylvie

AU - Mikhalovsky, Sergey V.

AU - Cundy, Andrew B.

PY - 2013/12/16

Y1 - 2013/12/16

N2 - The adsorption of ionic mercury(II) from aqueous solution on functionalized hydride silicon materials was investigated. The adsorbents were prepared by modification of mesoporous silica C-120 with triethoxysilane or by converting alkoxysilane into siloxanes by reaction with acetic acid. Mercury adsorption isotherms at 20 °C are reported, and maximum mercury loadings were determined by Langmuir fitting. Adsorbents exhibited efficient and rapid removal of ionic mercury from aqueous solution, with a maximum mercury loading of approximately 0.22 and 0.43 mmol of Hg g-1 of silica C-120 and polyhedral oligomeric silsesquioxane (POSS) xerogel, respectively. Adsorption efficiency remained almost constant from pH 2.7 to 7. These inexpensive adsorbents exhibiting rapid assembly, low pH sensitivity, and high reactivity and capacity, are potential candidates as effective materials for mercury decontamination in natural waters and industrial effluents. Catch you because I can: Hydride silica adsorbents show efficient and rapid redox-driven removal of ionic mercury from aqueous solution, such as in natural waters and industrial effluents, with a maximum mercury loading of approximately 0.22 and 0.43 mmol of Hg g-1 on mesoporous silica C-120 and polyhedral oligomeric silsesquioxane xerogels, respectively. Adsorption efficiency remains almost constant from pH 2.7 to 7.

AB - The adsorption of ionic mercury(II) from aqueous solution on functionalized hydride silicon materials was investigated. The adsorbents were prepared by modification of mesoporous silica C-120 with triethoxysilane or by converting alkoxysilane into siloxanes by reaction with acetic acid. Mercury adsorption isotherms at 20 °C are reported, and maximum mercury loadings were determined by Langmuir fitting. Adsorbents exhibited efficient and rapid removal of ionic mercury from aqueous solution, with a maximum mercury loading of approximately 0.22 and 0.43 mmol of Hg g-1 of silica C-120 and polyhedral oligomeric silsesquioxane (POSS) xerogel, respectively. Adsorption efficiency remained almost constant from pH 2.7 to 7. These inexpensive adsorbents exhibiting rapid assembly, low pH sensitivity, and high reactivity and capacity, are potential candidates as effective materials for mercury decontamination in natural waters and industrial effluents. Catch you because I can: Hydride silica adsorbents show efficient and rapid redox-driven removal of ionic mercury from aqueous solution, such as in natural waters and industrial effluents, with a maximum mercury loading of approximately 0.22 and 0.43 mmol of Hg g-1 on mesoporous silica C-120 and polyhedral oligomeric silsesquioxane xerogels, respectively. Adsorption efficiency remains almost constant from pH 2.7 to 7.

KW - adsorption

KW - hydride silica

KW - mercury

KW - rapid uptake

KW - water remediation

UR - http://www.scopus.com/inward/record.url?scp=84890121133&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84890121133&partnerID=8YFLogxK

U2 - 10.1002/cphc.201300832

DO - 10.1002/cphc.201300832

M3 - Article

VL - 14

SP - 4126

EP - 4133

JO - ChemPhysChem

JF - ChemPhysChem

SN - 1439-4235

IS - 18

ER -