Investigation of effective parameter of activated carbon preparation by chemical activation with Taguchi Method

In the present study، activated carbon (AC) with high surface area prepared by using of nutshell (waste of agriculture) as starting material. Chemical activation method was chosen for this purpose. Effective parameters such as impregnation ratio (IR)، temperature of activation and time، were investigated by design experiment. The results showed that the optimized sample which has highest surface area and pore volume can be achieved by fixing the IR، temperature of carbonization and time to 3، 500 ℃ and 2 hours، respectively. Increasing temperature resulted in decrement of the surface area of AC، while increasing time and IR lead to higher surface area and pore volume of AC. Furthermore، contribution factor showed that effect of temperature is higher than two other parameters.