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Open AccessArticle

Synthesis and Characterization of CuFe2O4 Nanoparticles Modified with Polythiophene: Applications to Mercuric Ions Removal

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Chemistry Department, Faculty of Science, Ain Shams University, Abbasia 11566, Egypt
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Department of Chemistry, Virginia Commonwealth University, Richmond, VA 23284, USA
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Pharmaceutical Chemistry Department, Drug Exploration & Development Chair (DEDC), College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
4
Applied Organic Chemistry Department, National Research Center, Dokki 12622, Egypt
*
Authors to whom correspondence should be addressed.
Nanomaterials 2020, 10(3), 586; https://doi.org/10.3390/nano10030586 (registering DOI)
Received: 4 March 2020 / Revised: 19 March 2020 / Accepted: 20 March 2020 / Published: 23 March 2020
In this research, CuFe2O4 nanoparticles were synthesized by co-precipitation methods and modified by coating with thiophene for removal of Hg(II) ions from aqueous solution. CuFe2O4 nanoparticles, with and without thiophene, were characterized by x-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), energy dispersive x-ray (EDX), high-resolution transmission electron microscopy (HRTEM) and Brunauer–Emmett–Teller (BET). Contact time, adsorbent dose, solution pH, adsorption kinetics, adsorption isotherm and recyclability were studied. The maximum adsorption capacity towards Hg2+ ions was 7.53 and 208.77 mg/g for CuFe2O4 and CuFe2O4@Polythiophene composite, respectively. Modification of CuFe2O4 nanoparticles with thiophene revealed an enhanced adsorption towards Hg2+ removal more than CuFe2O4 nanoparticles. The promising adsorption performance of Hg2+ ions by CuFe2O4@Polythiophene composite generates from soft acid–soft base strong interaction between sulfur group of thiophene and Hg(II) ions. Furthermore, CuFe2O4@Polythiophene composite has both high stability and reusability due to its removal efficiency, has no significant decrease after five adsorption–desorption cycles and can be easily removed from aqueous solution by external magnetic field after adsorption experiments took place. Therefore, CuFe2O4@Polythiophene composite is applicable for removal Hg(II) ions from aqueous solution and may be suitable for removal other heavy metals. View Full-Text
Keywords: CuFe2O4 nanoparticles; CuFe2O4@Polythiophene composite; mercury (II) removal; adsorption CuFe2O4 nanoparticles; CuFe2O4@Polythiophene composite; mercury (II) removal; adsorption
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H. Kamel, A.; Hassan, A.A.; Amr, A. .-G.; El-Shalakany, H.H.; A. Al-Omar, M. Synthesis and Characterization of CuFe2O4 Nanoparticles Modified with Polythiophene: Applications to Mercuric Ions Removal. Nanomaterials 2020, 10, 586.

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