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Publication
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| Title of Article |
Highly-efficient ultrasonic-assisted preconcentration of trace amounts of Ag(I), Pb(II), and Cd(II) ions using 3-Mercaptopropyl trimethoxysilane-functionalized graphene oxide-magnetic nanoparticles", has been accepted for publication in
Journal of the Korean Ceramic Society. |
| Date of Acceptance |
27 October 2020 |
| Journal |
| Title of Journal |
Journal of the Korean Ceramic Society (JKCS) |
| Standard |
ISI |
| Institute of Journal |
springer |
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| Year of Publication |
2020 |
| Page |
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| Abstract |
The preparation and characteri]ation of thiol-functionali]ed graphene oxide/iron oxide
(Fe3O4-GO-SH nanocomposites (novel magnetic adsorbents for the simultaneous
preconcentration and determination of heavy metal ions, such as Ag(I) , Pb(II) , and
Cd(II) , from water samples were carried out in the present research. The
characterization of the resultant Fe3O4-GO-SH nanocomposites was performed by
SEM, TEM, EDX, XRD, FTIR, and VSM. The preconcentration optimization of pH
solution, adsorbent amount, ultrasonic power for adsorption and desorption processes,
adsorption time, and elution solvent type and concentration was performed by the
ultrasonic-assisted magnetic solid-phase extraction. Under optimal conditions, linear
ranges were found to be 20-1000ugL-1 for Ag(I) and Cd(II ) ions and 200-10000ug
L-1 for Pb(II) ions with a regression coefficient of R2>0.99. The limits of detection for
Ag, Pb, and Cd ions were 1.7ug L-1, 14.1ug L-1 and 0.9ug L-1 respectively, and the
limits of quantification for Ag, Pb, and Cd ions were 5.9ug L-1, 47.3ug L-1, and 3.2
ug L-1 respectively. The recovery rate of these metal ions for water samples (drinking
water, tap water, swamp water, and wastewater from plating plants) ranged between
80% and 115%. Therefore, the proposed method can potentially be used for the
simultaneous preconcentration and determination of heavy metal ions from real water
samples, and its reusability can be easily carried out by the deionized water treatment. |
| Keyword |
Ultrasound; Magnetic solid-phase microextraction; heavy metals; Graphene oxide; Thiol-functionalization; Fe3O4 |
| Author |
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| Reviewing Status |
ไม่มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
false |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
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