Activated carbon from mustard stalk biomass: Synthesis, characterization and application in wastewater treatment

Present work is focused on the preparation of mustard stalk activated carbon (MSAC) using chemical activation with H3PO4 and exploring its properties for use in dye removal from wastewater. Adsorption variable (dosage, contact time, solution pH), pore structure, morphology, surface functional groups, equilibrium kinetics isotherm study methylene blue (MB) MSAC were investigated. The present showed that an adsorption dosage 0.2 g L-1 pH 8 can be considered as optimum MB removal. SEM result was larger than (MS). BET area total volume found 510 m2 g-1 0.33 cm3 g-1, respectively. Equilibrium data examined by Langmuir Freundlich models. Better correspondence to model a maximum capacity 212.76 mg (MB onto MSAC) obtained. Dimensionless factor, RL revealed favourable nature sorption MSAC?MB system. rates follow pseudo-second-order good correlation. These results show could used renewable economical alternative commercial