Application of the MoS2/Graphitic Carbon Nitride Nanocomposite for Removing of Organic Pollutants

The MoS2/Graphitic carbon nitride nanocomposite were prepared by sonication of graphitic carbon nitride and MoS2 respectively. Their comparative performance was investigated for adsorption of Methylene blue as an organic toxic pollutant. Methylene blue was first prepared in 1876 by Heinrich Caro. It is on the World Health Organization s List of Essential Medicines, the most effective and safe medicines needed in a health system. Common side effects include headache, vomiting, confusion, shortness of breath, and high blood pressure. Other side effects include serotonin syndrome, red blood cell breakdown, and allergic reactions. Use often turns the urine, sweat, and stool blue to green in color. While use during pregnancy may harm the baby, not using it in methemoglobinemia is likely more dangerous. The crystal structure, morphology, microscopic components and properties of the synthesized samples were characterized by XRD, TEM, FT-IR, BET, Two simplified kinetic models, pseudo-first-order and pseudo-second order were applied to predict the adsorption rate constants. Adsorption isotherms and equilibrium adsorption capacities were established by three well-known isotherm models including Langmuir, Freundlich and Dubinin-Radushkevich (D-R). Samples were investigated for underlining the reaction mechanism during the process and then can be assigned to the overall reaction. It is worth mentioning that the optimum operating condition can be obtained by orthogonal experiments.