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Trihalomethanes (THMs) removal from aqueous solutions using environmental friendly and effective adsorbent onto Mespilus germanica modified by Fe2 (MoO4)3 nanocomposite on equilibrium, thermodynamic, and kinetics

In the present study, the applicability of Mespilus germanica modified by Fe2(MoO4)3 nanocomposite in trihalomethanes (THMs) removal from aqueous solutions has been delineated. Numerous techniques including Brunauer–Emmett–Teller, Fourier transform infrared, X-ray diffraction, and scanning electron microscopy were employed to show the characteristics of this novel material. Via employment of a batch adsorption technique, the impact values of 30 mg L–1, 50 mg, 7.0, 50 min were considered as the ideal values for THMs, adsorbent mass, pH value, and contact time, respectively. Equilibrium data obtained have been to the adsorption isotherms, Langmuir, and Freundlich model best fits the experimental results. Kinetic modeling of showed that the pseudo-second-order equation was most appropriate for the description of THMs adsorption by sorbent nanocomposite. The maximum adsorption capacities for CHCl3, CHCl2Br, CHClBr2, and CHBr3 were found to be 28.5, 15.3, 13.15, and 4.27 mg g–1, respectively. The thermodynamic parameters including enthalpy, entropy, and Gibbs energy were calculated for the adsorption. The negative value of (ΔG°, ΔH°, and ΔS°) confirmed the sorption process was exothermic reflects the affinity of M. germanica modified by Fe2(MoO4)3 nanocomposite for removal THMs process requires heat from aqueous solutions.