Research Information System
Inorganic Chemistry Communications, vol.157, 2023 (SCI-Expanded)
Polyhydroquinone graphene oxide nanocomposite was produced and characterized by spectroscopic procedures. This substance was used to eliminate the antibiotic cephalexin from the water. With an initial amount of 700.0 g/L, a dose of 1.0 g/L, 60 min of contact time, and a temperature of 25 °C, the removal percentage was 90.0. Following the Langmuir, Temkin, and D-Rs models were the experimental data. A kinetic model with a pseudo-first order was used to govern the kinetic. At 20, 25, and 30 °C, free energy magnitudes were −47.28, −48.10, and −48.90 kJ/mol. Entropy and enthalpy had values of −0.063 and −0.21 kJ/mol. Thermodynamic parameter values that are negative are a sign of a spontaneous sorption process. Cephalexin's physical sorption on the polymeric polyhydroquinone graphene oxide nanocomposite sorbent was confirmed by the simulation investigation. Cephalexin bound to polymeric polyhydroquinone graphene oxide nanocomposite with a −3.5 kcal/mole binding energy. This technique can be used to remove cephalexin on a wide scale since it is reasonable and eliminates 90 % of cephalexin.