Synthesis of Microporous Activated Carbon (MAC) Using Compressed Wood as Waste Biomass Via Pyrolysis for Adsorption of Crystal Violet
More details
Hide details
Online publication date: 2019-04-25
Publication date: 2019-04-25
Eurasian J Anal Chem 2019;14(2):emEJAC191028
Microporous activated carbon (MAC) was produced using compressed wood as biomass residue by means of chemical activation by utilizing phosphoric acid as an activation agent through pyrolysis in N2 atmosphere. The process was optimized by conducting the experiments at various ranges of operating conditions including impregnation ratio at 1:1 to 1:4 and pyrolysis temperatures of 500 to 900˚C. Furthermore, MAC produced was employed for the adsorption of crystal violet. The adsorption efficiency was analyzed by varying process parameters such as pH, agitation rate and agitation time. From that, the highest adsorption efficiency of 73.2% was achieved. In addition, the adsorption isotherm sexhibitedan incredible adsorption capacity of 311.34 mg/g that shows great potential of MAC for environmental remediation. MAC was further characterized to explore structural up gradation and qualitative key functional groups by using field emission scanning electron microscopy (FESEM) and Fourier transform infrared (FTIR). The kinetic study revealed the fitness of pseudo second order kinetic model for the absorption of crystal violet dye. This study presents synthesis of cost effective synthesis of MAC that is highly effective for the adsorption of crystal violet.