Abstract

Fe<sub>2</sub>O<sub>3</sub>-SiO<sub>2</sub>-CTAB transparent nano-composite films were prepared by means of a two-step acid-catalyzed method and sol-gel process using surfactant cetyltrimethylammonium bromide (CTAB) as template and tetraethoxysilane (TEOS) as the starting material, iron nitrate Fe(NO<sub>3</sub>)<sub>3</sub>·9H<sub>2</sub>O as iron source material. Optical properties, structural and magnetic characteristics of the films were investigated by UV-visible spectra, FT-IR spectra and vibrating sample magnetometer (VSM). The transparency of the high temperature treated Fe<sub>2</sub>O<sub>3</sub>-SiO<sub>2</sub>-CTAB nano-composite films exceeds the glass substrate. It is also found that the saturation magnetization (Ms) of the films increases with the treating temperature. The magnetization measurements reveal that Fe<sub>2</sub>O<sub>3</sub>-SiO<sub>2</sub>-CTAB nano-composite films display normal ferromagnetic behaviors. It is also shown that the CTAB plays a key role in the optical and magnetic properties of Fe<sub>2</sub>O<sub>3</sub>-SiO<sub>2</sub>-CTAB composite films.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.