Correlation between structural and optical properties of CuO/carbon nanoparticle in supports the photocatalytic performance and attenuate the electromagnetic wave

The population increase impacted the increasing demand of the textile industries and electronic devices for supporting daily life. The textile industry uses a toxic chemical at the processing stage, affected by the surface water for disposal without prior treatment. Electronic devices produce a new type of pollution, ex electromag- netic interference (EMI). The multifunction materials against electromagnetic (EM) pollution and radiation of EMI and water pollution treatment are needed. The purposes of this study are to find a correlation between the structural and optical properties of composites CuO-Activated Carbon (CuO-AC) in supports the photocatalyst performance, which analyzing by using X-ray diffraction (XRD), Fourier Transforms Infrared) spectroscopy (FTIR), and Ultraviolet-visible (UV–vis) spectra, respectively. Surface morphology and particle size determined by Transmission Electron Microscopy (TEM). The quantitative analysis of XRD spectra by applying the Scherrer, Williamson-Hall (WH), and Size-Strain Plot (SSP) method using to determine the crystallite size (D), strain (ε), stress (σ), and energy density (u). These parameters are using to identify the monoclinic phase. The optical properties in the form of refractive index (n) and extinction coefficient (k), the dielectric function (ε1 and ε2) is determining from the quantitative analysis of FT-IR spectra by applying Kramers–Kronig (K–K) relation. The crystallite size increase, the optical phonon vibration shifted, and close each other’s with increasing the amount of AC indicated stable bonding as the effect of the heterogeneous nucleation in the composite. In this study, composite CuO-AC offers an excellent prospect for next bi-functional materials indicated by the degradation up to 87.87 % in 90 min and attenuated 99 % of the electromagnetic wave for 20 % AC.