Magnetite nanoparticles coated with β-cyclodextrin functionalized-ionic liquid: Synthesis and its preliminary investigation as a new sensing material

• Published in: Applied surface science Vol. 357; pp. 543 - 550
• Main Authors: Sinniah, Subathra, Mohamad, Sharifah, Manan, Ninie S.A.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.12.2015
• Subjects: Coating effects; Field emission; Liquids; Magnetic properties; Magnetite; Magnetite nanoparticle; Nanoparticles; Scanning electron microscopy; Sensor; Surface modification; X-rays; β-Cyclodextrin-funtionalized with ionic liquid; Surface modification; β-Cyclodextrin-funtionalized with ionic liquid; Magnetite nanoparticle; Sensor
• ISSN: 0169-4332; 1873-5584
• DOI: 10.1016/j.apsusc.2015.09.078

•A novel of β-cyclodextrin functionalized-ionic liquid coated with magnetite nanoparticles is prepared via co-precipitation method.•The architecture of the material is successfully characterized and confirmed that β-cyclodextrin-functionalized-ionic liquid, has been effectively coated onto surface of Fe3O4 magnetite nanoparticles.•Vibration Sample Magnetometer analysis confirmed that the Fe3O4-β-CD-IL able to attain an excellent magnetic properties.•Preliminary electrochemical study shows that Fe3O4-β-CD-IL able to recognize Biphenol A. In this study, a novel surface of modified magnetite nanoparticles Fe3O4 was coated with β-cyclodextrin-funclionalized ionic liquid (Fe3O4-β-CD-IL) via the co-precipitation method in alkaline salt medium. β-Cyclodextrin-functionalized-ionic liquid has been effectively coated onto the surface of Fe3O4 magnetite nanoparticles. The instruments used to investigate the architecture are: Fourier Transform Infrared Spectroscopy, X-ray Powder Diffraction, Electron Microscope-Energy Dispersive X-Ray Spectrometry, Transmission Electron Microscope, Field Emission Scanning Electron Microscope, Vibrating Sample Magnetometer and Brunauer–Emmett–Teller isotherm. A Vibration Sample Magnetometer analysis verified that the Fe3O4-β-CD-IL attained excellent magnetic properties. The analysis of High Resolution Transmission Electron Microscope shows that the Fe3O4-β-CD-IL produced monodisperse particles with minimal aggregation. Moreover, electrochemical studies have revealed that this new material showed outstanding ability to recognize Bisphenol A with lower electrochemical potential at 0.5V than other comparative materials, as well as a higher detection current. Thus, this material has promising potential as a new electrode material in sensor applications.