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Efficient sonophotocatalytic degradation of acid blue 113 dye using a hybrid nanocomposite of CoFe2O4 nanoparticles loaded on multi-walled carbon nanotubes. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113617] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Preparation of multi-walled carbon nanotubes coated with CoFe2O4 nanoparticles and their adsorption performance for Bisphenol A compound. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103438] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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Buema G, Borhan AI, Herea DD, Stoian G, Chiriac H, Lupu N, Roman T, Pui A, Harja M, Gherca D. Magnetic Solid-Phase Extraction of Cadmium Ions by Hybrid Self-Assembled Multicore Type Nanobeads. Polymers (Basel) 2021; 13:polym13020229. [PMID: 33440804 PMCID: PMC7827178 DOI: 10.3390/polym13020229] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/06/2021] [Accepted: 01/08/2021] [Indexed: 01/24/2023] Open
Abstract
Novel hybrid inorganic CoFe2O4/carboxymethyl cellulose (CMC) polymeric framework nanobeads-type adsorbents with tailored magnetic properties were synthesized by a combination of coprecipitation and flash-cooling technology. Precise self-assembly engineering of their shape and composition combined with deep testing for cadmium removal from wastewater are investigated. The development of a single nanoscale object with controllable composition and spatial arrangement of CoFe2O4 (CF) nanoparticles in carboxymethyl cellulose (CMC) as polymeric matrix, is giving new boosts to treatments of wastewaters containing heavy metals. The magnetic nanobeads were characterized by means of scanning electron microscopy (SEM), powder X-ray diffraction analysis (XRD), thermogravimetric analysis (TG), and vibrational sample magnetometer (VSM). The magnetic properties of CF@CMC sample clearly exhibit ferromagnetic nature. Value of 40.6 emu/g of saturation magnetization would be exploited for magnetic separation from aqueous solution. In the adsorptions experiments the assessment of equilibrium and kinetic parameters were carried out by varying adsorbent dosage, contact time and cadmium ion concentration. The kinetic behavior of adsorption process was best described by pseudo-second-order model and the Langmuir isotherm was fitted best with maximum capacity uptake of 44.05 mg/g.
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Affiliation(s)
- Gabriela Buema
- National Institute of Research and Development for Technical Physics, 47 Mangeron Boulevard, 700050 Iasi, Romania; (G.B.); (A.I.B.); (D.D.H.); (G.S.); (H.C.); (N.L.); (T.R.)
| | - Adrian Iulian Borhan
- National Institute of Research and Development for Technical Physics, 47 Mangeron Boulevard, 700050 Iasi, Romania; (G.B.); (A.I.B.); (D.D.H.); (G.S.); (H.C.); (N.L.); (T.R.)
- Faculty of Chemistry, Alexandru Ioan Cuza University of Iasi, 11, Carol I Boulevard, 700506 Iasi, Romania;
| | - Daniel Dumitru Herea
- National Institute of Research and Development for Technical Physics, 47 Mangeron Boulevard, 700050 Iasi, Romania; (G.B.); (A.I.B.); (D.D.H.); (G.S.); (H.C.); (N.L.); (T.R.)
| | - George Stoian
- National Institute of Research and Development for Technical Physics, 47 Mangeron Boulevard, 700050 Iasi, Romania; (G.B.); (A.I.B.); (D.D.H.); (G.S.); (H.C.); (N.L.); (T.R.)
| | - Horia Chiriac
- National Institute of Research and Development for Technical Physics, 47 Mangeron Boulevard, 700050 Iasi, Romania; (G.B.); (A.I.B.); (D.D.H.); (G.S.); (H.C.); (N.L.); (T.R.)
| | - Nicoleta Lupu
- National Institute of Research and Development for Technical Physics, 47 Mangeron Boulevard, 700050 Iasi, Romania; (G.B.); (A.I.B.); (D.D.H.); (G.S.); (H.C.); (N.L.); (T.R.)
| | - Tiberiu Roman
- National Institute of Research and Development for Technical Physics, 47 Mangeron Boulevard, 700050 Iasi, Romania; (G.B.); (A.I.B.); (D.D.H.); (G.S.); (H.C.); (N.L.); (T.R.)
- Integrated Center of Environmental Science Studies in the North Eastern Region—CERNESIM, Alexandru Ioan Cuza University of Iasi, Carol I nr. 11 Boulevard, 700506 Iasi, Romania
| | - Aurel Pui
- Faculty of Chemistry, Alexandru Ioan Cuza University of Iasi, 11, Carol I Boulevard, 700506 Iasi, Romania;
| | - Maria Harja
- Faculty of Chemical Engineering and Environmental Protection, “Gheorghe Asachi” Technical University of Iasi, 73 Dimitrie Mangeron Street, 700050 Iasi, Romania
- Correspondence: (M.H.); (D.G.)
| | - Daniel Gherca
- National Institute of Research and Development for Technical Physics, 47 Mangeron Boulevard, 700050 Iasi, Romania; (G.B.); (A.I.B.); (D.D.H.); (G.S.); (H.C.); (N.L.); (T.R.)
- Correspondence: (M.H.); (D.G.)
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