Pollutant Removal From Contaminated Water Using EfficientPhosphorus-Containing g-C۳N۴/FeMo۵.۵O۳ Nanocomposite Adsorbent

Iron(III) molybdate (FeMo۵.۱O۴) was synthesized as a novel perovskite oxide material for the first time andused to prepare several nanocomposites of phosphorous-containing graphitic carbon nitride (PC۴N۱)/FeMo۵.۱O۴ by the hydrothermal method. The nanocomposites were applied as promising materials forremoval of methylene blue (MB) from water. Influences of some factors including contact time, pH,adsorbent dose, temperature, plus MB concentration were investigated on MB removal. The adsorptionisotherms and kinetics were studied using different mathematical models. Results displayed that using ۰۵mg/L MB concentration, ۵.۰ g/L sorbent dosage, pH=۵.۵, at ۰۱ °C temperature, during ۰۵ min adsorptiontime, the optimum adsorbent, i.e. the P-C۴N۱+۱:FeMo۵.۱O۴ nanocomposite, had an excellent adsorptioncapability. The Langmuir isotherm best described the MB sorption onto the P-C۴N۱+۱:FeMo۵.۱O۴. Thepseudo-second order kinetic accurately predicted MB adsorption behavior. Thermodynamic tests confirmedthat MB sorption was physically controlled by an exothermic process. The saturated sorption capacity of PC۴N۱+۱:FeMo۵.۱O۴ was ۴۴ mg/g.

کلیدواژه ها:

Adsorption ، P-C۴N۱/FeMo۵.۱O۴ nanocomposite ، Water treatment ، Methylene blue ، Kineticand thermodynamic studies