Sunaryono, Mimin Nurul Kholifah, Ahmad Taufiq, Erfan Handoko
Fe3O4/Carboxymethyl Cellulose (CMC)/Polyvinyl Alcohol (PVA) magnetic hydrogel was successfully synthesized by using the freezing-thawing process. Meanwhile, the filler of Fe3O4 nanoparticles was successfully fabricated by co-precipitation method. Magnetic hydrogel and Fe3O4 was revealed by using X-Ray Fluorescence (XRF), Fourier Transform Infrared (FTIR), Vibrating Sample Magnetometer (VSM), and Small Angle X-ray Scattering (SAXS) to investigate the content of elements in the Fe3O4 filler, the functional group network of samples, magnetic properties of magnetic hydrogel and Fe3O4, and nanostructure of magnetic hydrogel, respectively. The magnetic properties of magnetic hydrogel decreased as the decrease in the particle sizes of the Fe3O4 nanoparticles. On the other hand, the saturation magnetization of magnetic hydrogel decreased as the freezing-thawing route increased in number. This condition can be concluded that the distribution of the Fe3O4 filler in CMC/PVA magnetic hydrogel was more effective when the route number of freezing-thawing reached the maximum process (7x processes). Moreover, the nanostructure of magnetic hydrogel revealed the composition of the crystalline phase of CMC/PVA hydrogel of approximately 6 nm. By these characteristics, Fe3O4/CMC/PVA magnetic hydrogel is potential to be used as smart gel such as artificial muscle, switch-of, and the others. © 2019 Trans Tech Publications Ltd, Switzerland.
Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jalan Semarang No. 5, Malang, 65145, Indonesia; Research Center of Minerals and Advanced Materials, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang No. 5, Malang, 65145, Indonesia; Departnent of Physics, Universitas Negeri Jakarta, Indonesia
