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Performance of ceria/iron oxide nano-composites based on chitosan as an effective adsorbent for removal of Cr(VI) and Co(II) ions from aqueous systems.
Environ Sci Pollut Res Int. 2018 Sep; 25(27):27059-27073.ES

Abstract

A novel chitosan/ceria/iron oxide (CS/ceria/Fe3O4) nano-composite adsorbent was synthesized for removal of Cr(VI) and Co(II) ions from aqueous systems in a batch system. The adsorbents were characterized by field emission scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM), thermal gravimetric analysis (TGA), and Brunauer- Emmett-Teller (BET) analyses. The behavior of swelling kinetics was also studied. The effect of several adsorption parameters including CeO2 and Fe3O4 contents, initial pH, contact time, initial Cr(VI) and Co(II) concentration, and temperature on the adsorption capacity was studied. The double exponential model revealed a better fit with the kinetic data of Cr(VI) and Co(II) ions. The Cr(VI) and Co(II) adsorption process well fitted the Langmuir model. The maximum adsorption capacities estimated from Langmuir isotherm model were 315.4 and 260.6 mg/g for Cr(VI) and Co(II) ions, respectively. Also, thermodynamic parameters were used to distinguish the nature of Cr(VI) and Co(II) adsorption. The reusability of CS/ceria/Fe3O4 nano-composite was evaluated with stripping agents of 0.1 M NaOH and 0.1 M HNO3. Finally, the evaluation of Cr(VI)-Co(II) coexisting system confirmed that the presence of Co(II) ions played an inhibitor role on the Cr(VI) adsorption.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Farokhi M
Department of Chemical Engineering, Borujerd Branch, Islamic Azad University, Borujerd, Iran.
Parvareh A
Department of Chemical Engineering, Borujerd Branch, Islamic Azad University, Borujerd, Iran. Chemical Engineering and Petroleum Faculty, Razi University, Kermanshah, Iran.
Moraveji MK
Department of Chemical Engineering, Borujerd Branch, Islamic Azad University, Borujerd, Iran. moraveji@aut.ac.ir. Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), 242 Hafez Avenue, Tehran, 15875-4413, Iran. moraveji@aut.ac.ir.

MeSH

AdsorptionCeriumChitosanChromiumCobaltFerrosoferric OxideHydrogen-Ion ConcentrationKineticsSpectroscopy, Fourier Transform InfraredTemperatureThermodynamicsWaterWater Pollutants, ChemicalWater PurificationX-Ray Diffraction

Pub Type(s)

Evaluation Study
Journal Article

Language

eng

PubMed ID

30019133

Citation

Farokhi, Morshed, et al. "Performance of Ceria/iron Oxide Nano-composites Based On Chitosan as an Effective Adsorbent for Removal of Cr(VI) and Co(II) Ions From Aqueous Systems." Environmental Science and Pollution Research International, vol. 25, no. 27, 2018, pp. 27059-27073.
Farokhi M, Parvareh A, Moraveji MK. Performance of ceria/iron oxide nano-composites based on chitosan as an effective adsorbent for removal of Cr(VI) and Co(II) ions from aqueous systems. Environ Sci Pollut Res Int. 2018;25(27):27059-27073.
Farokhi, M., Parvareh, A., & Moraveji, M. K. (2018). Performance of ceria/iron oxide nano-composites based on chitosan as an effective adsorbent for removal of Cr(VI) and Co(II) ions from aqueous systems. Environmental Science and Pollution Research International, 25(27), 27059-27073. https://doi.org/10.1007/s11356-018-2594-x
Farokhi M, Parvareh A, Moraveji MK. Performance of Ceria/iron Oxide Nano-composites Based On Chitosan as an Effective Adsorbent for Removal of Cr(VI) and Co(II) Ions From Aqueous Systems. Environ Sci Pollut Res Int. 2018;25(27):27059-27073. PubMed PMID: 30019133.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Performance of ceria/iron oxide nano-composites based on chitosan as an effective adsorbent for removal of Cr(VI) and Co(II) ions from aqueous systems. AU - Farokhi,Morshed, AU - Parvareh,Arsalan, AU - Moraveji,Mostafa Keshavarz, Y1 - 2018/07/17/ PY - 2018/04/04/received PY - 2018/06/18/accepted PY - 2018/7/19/pubmed PY - 2019/1/1/medline PY - 2018/7/19/entrez KW - Adsorption KW - Chitosan/ceria/iron oxide KW - Nano-composite KW - Reusability KW - Swelling SP - 27059 EP - 27073 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 25 IS - 27 N2 - A novel chitosan/ceria/iron oxide (CS/ceria/Fe3O4) nano-composite adsorbent was synthesized for removal of Cr(VI) and Co(II) ions from aqueous systems in a batch system. The adsorbents were characterized by field emission scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscopy (TEM), thermal gravimetric analysis (TGA), and Brunauer- Emmett-Teller (BET) analyses. The behavior of swelling kinetics was also studied. The effect of several adsorption parameters including CeO2 and Fe3O4 contents, initial pH, contact time, initial Cr(VI) and Co(II) concentration, and temperature on the adsorption capacity was studied. The double exponential model revealed a better fit with the kinetic data of Cr(VI) and Co(II) ions. The Cr(VI) and Co(II) adsorption process well fitted the Langmuir model. The maximum adsorption capacities estimated from Langmuir isotherm model were 315.4 and 260.6 mg/g for Cr(VI) and Co(II) ions, respectively. Also, thermodynamic parameters were used to distinguish the nature of Cr(VI) and Co(II) adsorption. The reusability of CS/ceria/Fe3O4 nano-composite was evaluated with stripping agents of 0.1 M NaOH and 0.1 M HNO3. Finally, the evaluation of Cr(VI)-Co(II) coexisting system confirmed that the presence of Co(II) ions played an inhibitor role on the Cr(VI) adsorption. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/30019133/Performance_of_ceria/iron_oxide_nano_composites_based_on_chitosan_as_an_effective_adsorbent_for_removal_of_Cr_VI__and_Co_II__ions_from_aqueous_systems_ DB - PRIME DP - Unbound Medicine ER -