One-pot Synthesis and Surface Modification of Fe3O4 Nanoparticles Using Polyvinyl Alcohol by Coprecipitation and Ultrasonication Methods

International Conference on Chemistry and Material Science 2017

化学;材料科学

Nugraha, Aditya D.^1 ; Wulandari, Ika O.^1 ; Hutami Rahayu, L.B.^1 ; Riva'I, Imam^1 ; Santojo, D. J. Djoko H.^2,3 ; Sabarudin, Akhmad^1,3

Department of Chemistry, Faculty of Science, Brawijaya University, Malang

65145, Indonesia^1

Department of Physics, Faculty of Science, Brawijaya University, Malang

65145, Indonesia^2

Research Center for Advanced System and Material Technology (ASMAT), Brawijaya University, Malang

65145, Indonesia^3

关键词: Alkaline conditions;    Fe3O4 nanoparticles;    Mechanical synthesis;    One-pot synthesis;    Oxidation process;    Poly (vinyl alcohol) (PVA);    Situ co-precipitation;    Ultra-sonication;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/299/1/012066/pdf
DOI  :  10.1088/1757-899X/299/1/012066

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Among the various substances developed through nanoparticles, iron oxide (Fe3O4) nanoparticle is one of the substances that have been widely used in various fields such as industry, agriculture, biotechnology and biomedicine. The synthesis of Fe3O4nanoparticle can be carried out by two methods, consist of chemical and mechanical synthesis methods. Coprecipitation is one of the most commonly used methods for chemical synthesis. Fe3O4compounds are easily oxidized because they are amphoteric. To avoid the continuous oxidation process, chemical modification process should be carried out with the addition of a solution of polyvinyl alcohol (PVA). In this study, PVA-coated Fe3O4nanoparticles were synthesized by in-situ coprecipitation and ultrasonication methods through direct mixing (one-pot synthesis) of the iron (II) chloride tetrahydrate (FeCl2.4H2O), iron (III) chloride hexahydrate (FeCl3.6H2O), and PVA under alkaline condition. The effects of addition amount of NH3solution (by adjusting its flow rate using automated syringe pump) and PVA concentration were gently studied. Interaction of PVA with Fe3O4nanoparticle was identified by infrared spectroscopy whereas lattice parameters and crystallite sizes of the synthesized Fe3O4nanoparticles and PVA-coated Fe3O4nanoparticles were assessed by X-ray diffraction (XRD).