Influence of TiO2 Nanoparticles on Enhancing the Properties Activity of Organic Polymeric Materials for Industrial Applications

Novel composite (MC/TiO₂) films consisting of titanium dioxide nanoparticles (TiO₂NPs) and organic polymer methylcellulose (MC), were synthesized for applied in photocatalysis and industrial sectors. The preparation of the nanocomposites MC/TiO₂ films were verified successfully by EDX technique, which demonstrated the uniform distribution of TiO₂ in the MC. Moreover, in frequency of 20 Hz to 5.5 MHz, the dielectric properties of MC as a function of TiO₂ concentration were determined. The conductivity improved from 5.8 × 10⁻⁸ S.cm⁻¹ for MC to 3.8 × 10⁻⁶ S.cm⁻¹ for the composite MC/TiO₂, and the dielectric constant ε′ has risen from 87 for MC to 179 for the composite MC/TiO₂. In addition, the energy density increases from 3.86 × 10⁻⁴ J m⁻³ for MC to 7.94 × 10⁻⁴ J m⁻³ for MC/TiO₂, and the relaxation time τr dropped from 11.5 × 10⁻⁵ sec to 2.58 × 10⁻⁵. In summary, the data investigated that the dielectric characteristics of MC/TiO₂ were modified for usage in different applications as wastewater treatment and energy storage devices.