10.57647/j.ijnd.2025.1601.08

Fast preconcentration and determination of Zn(II) and Fe(III) us-ing phenyl isothiocyanate functionalized nanoporous Silica

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  • Seyedeh Azam Aghili1,
  • Leila Hajiaghababaei*2,
  • Parviz Aberoomand Azar1,
  • Alireza Badiei3,
  • Mohammad Saber-Tehrani1,
  1. Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
  2. Department of Chemistry, Yadegar-e-Imam Khomeini (RAH) Shahre Rey Branch, Islamic Azad University, Tehran, Iran
  3. School of Chemistry, College of Science, University of Tehran, Tehran, Iran
Fast preconcentration and determination of Zn(II) and Fe(III) us-ing phenyl isothiocyanate functionalized nanoporous Silica

Received: 2024-08-02

Revised: 2024-10-29

Accepted: 2024-11-02

Published in Issue 2025-01-10

Copyright (c) 2024 Seyedeh Azam Aghili, Leila Hajiaghababaei, Parviz Aberoomand Azar, Alireza Badiei, Mohammad Saber-Tehrani (Author)

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Aghili, S. A., Hajiaghababaei, L., Aberoomand Azar, P., Badiei, A., & Saber-Tehrani, M. (2025). Fast preconcentration and determination of Zn(II) and Fe(III) us-ing phenyl isothiocyanate functionalized nanoporous Silica. International Journal of Nano Dimension, 16(1 (January 2025), 1-10. https://doi.org/10.57647/j.ijnd.2025.1601.08
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Abstract

A quick approach to extract and monitor trace amount of Fe(III) and Zn(II) ions by nanoporous silica (SBA-15) functionalized with phenyl isothiocyanate groups and inductively coupled plasma optical emission spectrometry (ICP-OES) is presented. Phenyl isothiocyanate functionalized SBA-15 was constructed based on the process defined in previous studies and was used as a novel adsorbent for Fe(III) and Zn(II) preconcentration. We examined the optimal adsorbent amount, stirring time, pH and the smallest quantity of acid needed for stripping and the volume required to achieve breakthrough. Zn(II) and Fe(III) in 25 mL solution of 4 mg/L were completely extracted at pH=6 after shaking for 5 min. The highest adsorbent capacity was 1237 ±1.0 μg and 962 ±1.4 μg of Fe(III) and Zn(II) ions/mg functionalized SBA-15. The method's preconcentration factor was determined as 20. The approach detection limit was 3.2 and 5.7 µg/L for Zn(II) and Fe(III). Phenyl isothiocyanate-modified SBA-15 was effectively used as a novel solid extractant to concentrate Zn(II) and Fe(III) ions simultaneously from water samples.

 

Keywords

  • Nanoporous adsorbent,
  • Functionalized SBA-15,
  • Ferric ions,
  • Simultaneous extraction,
  • Water samples,
  • Zinc ions
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