Preparation and Adsorption Properties of Activated Carbon from Glutinous Rice Straw by KOH Method
[Objective] This study aimed to improve comprehensive utilization value of glutinous rice straw and to develop new raw material for preparation of activated carbon.[Method] Using potassium hydroxide as activator and glutinous rice straw as raw material,activated carbon was prepared.[Result] The optimum technological conditions for preparation of activated carbon from glutinous rice straw were as follows: activator concentration of 2 mol/L,activation time of 60 min,activation temperature of 600 ℃ and carbonization temperature of 450 ℃.The adsorption values of methylene blue and iodine by activated carbon prepared from glutinous rice straw were 10.21 ml/0.1 g and 920.74 mg/g respectively under the optimal conditions.The quality of the prepared activated carbon met the grade two of water quality purification-using activated carbon quality standard.[Conclusion] This study will provide certain references for comprehensive utilization of glutinous rice straw and preparation of high-performance activated carbon.
NETL
NSTL
万方数据
维普
