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Ethanedithiol-modified silica nanoparticles for selective removal of Hg2+ ions from aqueous wastewater

  • Anandhu Mohan , Munusamy Ashwini , Madhappan Santhamoorthy , Kokila Thirupathi , Ranganathan Suresh , Loganathan Guganathan , Natarajan Arumugam , Abdulrahman I. Almansour , Mei-Ching Lin , Seong-Cheol Kim , Keerthika Kumarasamy EMAIL logo and Thi Tuong Vy Phan EMAIL logo
Published/Copyright: May 23, 2024
Zeitschrift für Physikalische Chemie
From the journal Zeitschrift für Physikalische Chemie Volume 239 Issue 2-3

Abstract

A mesoporous silica nanoparticle was synthesized by incorporating (3-glycidoxypropyl trimethoxysilane (GPTS)) via sol-gel co-condensation method using Pluronic P123 as structure directing agent and further reacted with ethanedithiol (ED) by post-surface modification process. To produce ethanedithiol-modified silica nanoparticles, approximately 20 wt% of GPTS was incorporated into the mesoporous silica pore walls by reacting tetraethyl orthosilicate and GPTS mixture (80:20 wt/wt%). Next, the ethanedithiol groups were introduced onto the silica surface by reacting with the epoxy part of GPTS and thiol groups of ED to produce the ED-modified-mesoporous silica adsorbent (MS-ED NPs) material. The synthesized MS-ED NPs show a high surface area, pore size, and mesopore volume of approximately 556 m2/g, 2.7 nm, and 0.052 cm3/g, respectively. The MS-ED NPs showed selective removal of mercury ions (Hg2+) ions from the aqueous solution in the presence of other competitive metal ions with an adsorption amount of ∼168 mg/g with a removal capacity of approximately >90 % from the initial metal ion solutions (100 mg/L). The produced MS-ED NPs can be reusable up to 5 times by treating the metal-adsorbed MS-ED NPs in an acidic (0.1 M HCl) aqueous solution. Hence, the MS-ED NPs could be utilized to selectively remove Hg2+ ions from aqueous wastewater.

Keywords: silica nanoparticles; co-condensation; metal adsorption; recyclability; selectivity
Corresponding authors: Keerthika Kumarasamy, Department of Applied Chemistry, Chaoyang University of Technology, Taichung 413310, Taiwan, ROC, E-mail: ; and Thi Tuong Vy Phan, Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, 03 Quang Trung, Hai Chau, Danang 550000, Vietnam; and Faculty of Environmental and Chemical Engineering, Duy Tan University, 03 Quang Trung, Hai Chau, Danang 550000, Vietnam, E-mail:
Anandhu Mohan, Madhappan Santhamoorthy and Ranganathan Suresh contributed equally to this work.

Funding source: King Saud University

Award Identifier / Grant number: Unassigned

Acknowledgments

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2020R1I1A3052258). The project was funded by Researchers Supporting Project number (RSP2024R143), King Saud University, Riyadh, Saudi Arabia.

  1. Research ethics: Not applicable.

  2. Author contributions: Anandhu Mohan, Munusamy Ashwini, Madhappan Santhamoorthy, Kokila Thirupathi, Ranganathan Suresh, Loganathan Guganathan, Nataraj Arumugam, Seong-Cheol Kim: Conceptualization, Methodology, Characterization and data analysis, original draft writing. Abdulrahman I. Almansour, Mei-Ching Lin: Data curation and rearrangement, Draft revising., Thi Tuong Vy Phan, Keerthika Kumarasamy: Supervision, review, and editing.

  3. Competing interests: The authors have no conflicts to declare.

  4. Research funding: This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2020R1I1A3052258). The project was funded by Researchers Supporting Project number (RSP2024R143), King Saud University, Riyadh, Saudi Arabia.

  5. Data availability: Data availability on request.

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Received: 2024-02-04
Accepted: 2024-03-08
Published Online: 2024-05-23
Published in Print: 2025-02-25

© 2024 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/zpch-2024-0605
Keywords for this article
silica nanoparticles; co-condensation; metal adsorption; recyclability; selectivity

Articles in the same Issue

  1. Frontmatter
  2. Contributions to “Materials for solar water splitting”
  3. Synergistic enhancement of electrochemical supercapacitor efficiency via Co3O4/GO composite electrode
  4. Impact of annealing temperature on the structural, morphological and optical properties of Ni doped ZnO nanostructured thin films synthesized by sol–gel methodology
  5. Comparison of different iron oxides for degradation of tetracycline anti-bacterial drug
  6. Structural and electrical properties of mol% (100 − x)Li2SO4:xP2O5 solid electrolyte system (0 ≤ x ≤ 20)
  7. Microwave synthesis of magnesium phosphate-rGO as an effective electrode for supercapacitor application
  8. Adsorptive removal of Cu(II) ions from aqueous solution using Teff (Eragrostis tef) hay based magnetized biocarbon: RSM-GA, ANN based optimization and kinetics aspects
  9. Efficiency assessment of hydrothermally synthesized Mn2+/3+ modified LaCoO3 nanoparticles for advanced wastewater remediation
  10. Synthesis of BaO/NiO/rGO nanocomposite for supercapacitor application
  11. Ethanedithiol-modified silica nanoparticles for selective removal of Hg2+ ions from aqueous wastewater
  12. Effect of Zr substitution on photocatalytic and magnetic properties of lanthanum titanate
  13. Investigations on the microbial activity and anti-corrosive efficiency of nickel oxide nanoparticles synthesised through green route
  14. Multifunctional application of different iron oxide nanoparticles
  15. Effect of pH in the bismuth vanadate nanorods for their supercapacitor applications
  16. Maximizing biogas production from leftover injera: influence of yeast addition to anaerobic digestion system
  17. Synthesis, characterization and efficient photo-catalytic performance of methylene blue by Zn doped SnO2 nanoparticles
  18. Enhancing performance: insights into the augmentation potential of acrylonitrile butadiene styrene/boron nitride composites
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