Physiochemical characterization for cuprous oxide, magnesium oxide, and graphene oxide nanocomposites for effective methylene blue removal from aqueous solutions

The aimed photo-catalytic behavior of Cu₂O, MgO, and GO NC is introduced with a promised result. The studied NCs are inspected by XRD, FT-IR, EDX, and electron microscopes (TEM, and SEM). The EDX analysis also highlights the purity of Cu₂O/MgO/GO. The TEM micrograph of Cu₂O/GO composition shows that cuprous oxide average grain size hits the scope from 7 to 10 nm. At the same time, MgO appears as a large aggregate upon GO sheets, MgO exhibits an average grain size starting from 25 to 30 nm. FESEM imaging confirms the role of GO in declining grain average size of cuprous oxide from 400 to 150 nm upon GO sheets. The thermodynamic study states that (E*) and enthalpy of activation are nearly equal, which could confirm the stability of the studied chemical composition at higher temperatures. Such a combination of Cu₂O/MgO/GO has a degradation potential that decreases from 98.8 in the first usage to 87.5% in the fifth.