A novel green-synthesized V2O5 NPs from Jatropha leaves /polypropylene nanocomposite for effective urea and creatinine removal

In this study, V 2 O 5 NPs/Polypropylene nanocomposite was synthesized and characterized by different techniques; FTIR, UV-Vis, SEM, EDX, XRD, TG, and DSC. The resulting composite was used to remove urea from contaminated water. Different factors affecting adsorption efficiency were extensively studied, showing the highest urea removal percentage (88%) at pH equal 6. The pseudo-second-order kinetic model, indicating chemisorption. Thermodynamic analysis appeared to yield negative values ( -ΔG= - 4.1051-(-3.2463)), confirming the spontaneous adsorption process under the studied conditions. Furthermore, the negative (ΔH°= −17.16 kJ/mol) indicates that the adsorption is exothermic and the negative ΔS° (-0.0431 J/K·mol) shows a loss of randomness on the adsorption surface. The adsorption behavior on QFS was regarded to be heterogeneous surface with a multilayer adsorption character. This work was also fitted equilibrium adsorption results was described by the Freundlich isotherm model. The study also was applied for the removal of creatinine and urea from real samples (serum). The creatinine (0.703 ± 0.1363, p < 0.0001, 0.703 ± 0.0395 *0.0045, 0.767 urea levels (31.8261 ± 3.5096, 223.5913 ± 7.2041 p < 0.0001; 119.5833 ± 6.1346, *p < 0.0421, 0.0124) were measured in the control group and before and after administration of V 2 O 5 \ PP nanocomposite to the dialysis group.