Efficiency of CuCrO/Titanium dioxide nanoparticles composite for organic dye removal in aqueous solutions.

Semiconductor metal oxide with TiO nanoparticles removes hazardous compounds from environmental samples. TiO nanoparticles have shown potential as an efficient photocatalyst by being employed as a nano-catalyst for the breakdown of organic contaminants in wastewater samples. To separate substances from contaminated samples, combined UV and visible light irradiation has been used. Sol-gel synthesis was used to produce a copper chromite-titanium nanocomposite, which was then evaluated using analytical methods, such as XRD, BET, DRS-UV, and FT-IR. Using visible light, the photocatalytic activity of a nanocomposite made of CuCrO and TiO was investigated for its role in the breakdown of malachite green. The effects of several parameters, including pH change, anions presence, contact time, catalyst amount, concentration variation, and the kinetics of photocatalytic degradation were investigated. The magnitude of transition energy calculated using UV-DRS spectra was found to be 3.1 eV for CuCrOTiO nanocomposite. Maximum degradation was observed at pH 7.0. The surface area and pore volume of the co-doped samples of CrO - TiO obtained from BET were found to be 6.1213 m/g and 0.045063 cm/g respectively. The average particle size of the catalyst of the nano-catalysts calculated from XRD was found to be 8 nm for TiO and 66 nm for TiO-CuCrO. The peaks obtained in FTIR between the range of 900-500 cm were due to the presence of an aromatic compound. The binding mechanism of a dye molecule to the surface of CuCrO-TiO nanocomposite was analysed using quantum chemical calculations with the self-consistent reaction field technique employing integral equation formalism for the polarized continuum method and the UFF atomic radii set.