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Hasan MJ, Westphal E, Chen P, Saini A, Chu IW, Watzman SJ, Ureña-Benavides E, Vasquez ES. Adsorptive properties and on-demand magnetic response of lignin@Fe 3O 4 nanoparticles at castor oil-water interfaces. RSC Adv 2023; 13:2768-2779. [PMID: 36756408 PMCID: PMC9850361 DOI: 10.1039/d2ra07952f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 01/09/2023] [Indexed: 01/20/2023] Open
Abstract
Lignin@Fe3O4 nanoparticles adsorb at oil-water interfaces, form Pickering emulsions, induce on-demand magnetic responses to break emulsions, and can sequester oil from water. Lignin@Fe3O4 nanoparticles were prepared using a pH-induced precipitation method and were fully characterized. These were used to prepare Pickering emulsions with castor oil/Sudan red G dye and water at various oil/water volume ratios and nanoparticle concentrations. The stability and demulsification of the emulsions under different magnetic fields generated with permanent magnets (0-540 mT) were investigated using microscopy images and by visual inspection over time. The results showed that the Pickering emulsions were more stable at the castor oil/water ratio of 50/50 and above. Increasing the concentration of lignin@Fe3O4 improved the emulsion stability and demulsification rates with 540 mT applied magnetic field strength. The adsorption of lignin@Fe3O4 nanoparticles at the oil/water interface using 1-pentanol evaporation through Marangoni effects was demonstrated, and magnetic manipulation of a lignin@Fe3O4 stabilized castor oil spill in water was shown. Nanoparticle concentration and applied magnetic field strengths were analyzed for the recovery of spilled oil from water; it was observed that increasing the magnetic strength increased oil spill motion for a lignin@Fe3O4 concentration of up to 0.8 mg mL-1 at 540 mT. Overall, this study demonstrates the potential of lignin-magnetite nanocomposites for rapid on-demand magnetic responses to externally induced stimuli.
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Affiliation(s)
- Mohammad Jahid Hasan
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San AntonioOne UTSA CircleSan Antonio78249TXUSA
| | - Emily Westphal
- Department of Chemical and Materials Engineering, University of Dayton, 300 College Park Dayton OH 45469-0256 USA
| | - Peng Chen
- Department of Chemical and Materials Engineering, University of Dayton, 300 College Park Dayton OH 45469-0256 USA
| | - Abhishek Saini
- Department of Mechanical and Materials Engineering, University of Cincinnati2901Woodside DriveCincinnatiOH45221USA
| | - I-Wei Chu
- Institute of Imaging and Analytical Technology, Mississippi State UniversityMississippi StateMS39762USA
| | - Sarah J. Watzman
- Department of Mechanical and Materials Engineering, University of Cincinnati2901Woodside DriveCincinnatiOH45221USA
| | - Esteban Ureña-Benavides
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San AntonioOne UTSA CircleSan Antonio78249TXUSA
| | - Erick S. Vasquez
- Department of Chemical and Materials Engineering, University of Dayton, 300 College ParkDaytonOH45469-0256USA,Integrative Science and Engineering Center, University of Dayton, 300 College ParkDaytonOH45469USA
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Prill B, Yusan S. Synthesis and characterization of magnetic nanoparticles functionalized with different starch types. PARTICULATE SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1080/02726351.2021.1967536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Busra Prill
- Department of Materials Science and Engineering, Institute of Science, Ege University, Bornova, Turkey
| | - Sabriye Yusan
- Institute of Nuclear Sciences, Ege University, Bornova, Turkey
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Abdullah TA, Juzsakova T, Rasheed RT, Salman AD, Sebestyen V, Domokos E, Sluser B, Cretescu I. Polystyrene-Fe 3O 4-MWCNTs Nanocomposites for Toluene Removal from Water. MATERIALS 2021; 14:ma14195503. [PMID: 34639913 PMCID: PMC8509402 DOI: 10.3390/ma14195503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 09/05/2021] [Accepted: 09/08/2021] [Indexed: 12/18/2022]
Abstract
In this research, multi-walled carbon nanotubes (MWCNTs) were functionalized by oxidation with strong acids HNO3, H2SO4, and H2O2. Then, magnetite/MWCNTs nanocomposites were prepared and polystyrene was added to prepare polystyrene/MWCNTs/magnetite (PS:MWCNTs:Fe) nanocomposites. The magnetic property of the prepared nano-adsorbent PS:MWCNTs:Fe was successfully checked. For characterization, X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and BET surface area were used to determine the structure, morphology, chemical nature, functional groups, and surface area with pore volume of the prepared nano-adsorbents. The adsorption procedures were carried out for fresh MWCNTs, oxidized MWCNTs, MWCNTs-Fe, and PS:MWCNTs:Fe nanocomposites in batch experiments. Toluene standard was used to develop the calibration curve. The results of toluene adsorption experiments exhibited that the PS:MWCNTs:Fe nonabsorbent achieved the highest removal efficiency and adsorption capacity of toluene removal. The optimum parameters for toluene removal from water were found to be 60 min, 2 mg nano-sorbent dose, pH of 5, solution temperature of 35 °C at 50 mL volume, toluene concentration of 50 mg/L, and shaking speed of 240 rpm. The adsorption kinetic study of toluene followed the pseudo-second-order kinetics, with the best correlation (R2) value of 0.998, while the equilibrium adsorption study showed that the Langmuir isotherm was obeyed, which suggested that the adsorption is a monolayer and homogenous.
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Affiliation(s)
- Thamer Adnan Abdullah
- Sustainability Solutions Research Laboratory, Faculty of Engineering, University of Pannonia, 8200 Veszprém, Hungary; (T.A.A.); (T.J.); (A.D.S.); (V.S.); (E.D.)
- Chemistry Branch, Applied Sciences Department, University of Technology, Baghdad 10001, Iraq;
| | - Tatjána Juzsakova
- Sustainability Solutions Research Laboratory, Faculty of Engineering, University of Pannonia, 8200 Veszprém, Hungary; (T.A.A.); (T.J.); (A.D.S.); (V.S.); (E.D.)
| | - Rashed Taleb Rasheed
- Chemistry Branch, Applied Sciences Department, University of Technology, Baghdad 10001, Iraq;
| | - Ali Dawood Salman
- Sustainability Solutions Research Laboratory, Faculty of Engineering, University of Pannonia, 8200 Veszprém, Hungary; (T.A.A.); (T.J.); (A.D.S.); (V.S.); (E.D.)
| | - Viktor Sebestyen
- Sustainability Solutions Research Laboratory, Faculty of Engineering, University of Pannonia, 8200 Veszprém, Hungary; (T.A.A.); (T.J.); (A.D.S.); (V.S.); (E.D.)
| | - Endre Domokos
- Sustainability Solutions Research Laboratory, Faculty of Engineering, University of Pannonia, 8200 Veszprém, Hungary; (T.A.A.); (T.J.); (A.D.S.); (V.S.); (E.D.)
| | - Brindusa Sluser
- Faculty Chemical Engineering and Environmental Protection, “Gheorghe Asachi” Technical University of Iasi, 73, Blvd. D. Mangeron, 700050 Iasi, Romania
- Correspondence: (B.S.); (I.C.); Tel.: +40-741-914-342 (I.C.)
| | - Igor Cretescu
- Faculty Chemical Engineering and Environmental Protection, “Gheorghe Asachi” Technical University of Iasi, 73, Blvd. D. Mangeron, 700050 Iasi, Romania
- Correspondence: (B.S.); (I.C.); Tel.: +40-741-914-342 (I.C.)
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Elmobarak WF, Almomani F. Application of Fe 3O 4 magnetite nanoparticles grafted in silica (SiO 2) for oil recovery from oil in water emulsions. CHEMOSPHERE 2021; 265:129054. [PMID: 33280845 DOI: 10.1016/j.chemosphere.2020.129054] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/10/2020] [Accepted: 11/17/2020] [Indexed: 05/13/2023]
Abstract
In this study, an innovative magnetic demulsifier (MD) was prepared by grafting a silica layer onto the surface of the Fe3O4 magnetic nanoparticles (MNPs) using the modified Stober process. The MD was characterized using various analytical techniques (XRD, FTIR, TGA, TEM, VSM, etc.) and employed to recover oil from O/W emulsion, which were then regenerated and recycled several times. The effects of magnetic demulsifier dosage (MDdose), the concentration of oil (Coil), pH, the concentration of the surfactant (Csur), and separation time (tsep) on the demulsification efficiency (%ηdem), and the percentage of oil recovered (%Roil) were evaluated. An excellent %ηdem ≥ 90% was achieved Coil in the range 50-2000 mg/L. Using an MDdose as low as 10 mg/L attained a %ηdem in the range of 93%-94.3% for O/W mixtures with Coil < 2000 mg/L, which slightly decreased to ∼90% for higher concentrations. The reported %Roil (p-value <0.05) was >90 ± 0.1 for tests carried out with pH ≤ 7 and Csur ≤ 0.1 g/L and declined at higher pH and Csur to % 86.5 due to the increase in emulsion stability. The developed MD exhibited high recyclability at an effective and stable %Roil and %ηdem of ∼90% and 86.4% after 9 cycles, respectively. Demulsification process best fits the combined Langmuir-Freundlich (L-F) isotherm with highest adsorption capacity (Qmax) of 186.0 ± 5 mgoil/gMD compared to 86.0 ± 5 mgoil/gMD for Fe3O4, which is 1.1 folds greater than Qmax reported in the literature for other demulsifiers.
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Affiliation(s)
| | - Fares Almomani
- Department of Chemical Engineering, Qatar University, P. O. Box 2713, Doha, Qatar.
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