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Current Analytical Chemistry

Editor-in-Chief

ISSN (Print): 1573-4110
ISSN (Online): 1875-6727

Research Article

A Wide Bandgap Ag/MgO@Fe3O4 Nanocomposite as Magnetic Sorbent for Cd(II) in Water Samples

Author(s): Muddasir Hanif*, Kousar Yasmeen*, Haji Muhammad, Faheem Shah*, Saqib Hussain, Atta-ur-Rehman, Muhammad Masab, Syed Tahir Ali and Iftikhar Ahmad Tahiri

Volume 16, Issue 3, 2020

Page: [332 - 340] Pages: 9

DOI: 10.2174/1573411015666191205102628

Price: $65

Abstract

Background: The magnetic nanocomposites are very important as a reusable sorbents for the extraction of Cd(II) and other toxic metals from water samples.

Methods: The Ag/MgO@Fe3O4 nanocomposite was synthesized by the coprecipitation method and characterized by the XRD, EDX, SEM, UV-vis spectroscopy and FTIR. This nanocomposite was used to extract Cd(II) from water samples prior to its quantitative analysis with FAAS. Different variables, i.e. pH, temperature, amount of nanosorbent, adsorption/desorption and dilution were optimized.

Results: The method was successfully applied to determine Cd(II) in real water samples with excellent recoveries (98%). The present method has lower detection (0.29) and quantification limit (0.97 ng mL-1).

Conclusion: The Ag/MgO@Fe3O4 nanocomposite based magnetic extraction is a simple, fast, reproducible, less expansive and efficient technique for the Cd(II) extraction in water samples. The developed sorbent can be recycled and reused (20 times).

Keywords: Ag/MgO@Fe3O4 nanocomposites, Cd(II), flame atomic absorption spectrometry (FAAS), magnetic sorbent, solidphase extraction, water samples.

Graphical Abstract

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