【摘要】 以竹屑为原料,研究了KOH活化法高比表面积活性炭的制备工艺。分别考察了浸渍比、活化温度、活化时间等工艺参数对产品吸附性能的影响,并提出了可能的活化机理。在所研究的实验条件下,最佳的制备工艺是浸渍比1.0,活化温度800℃,活化时间2h。所得到的活性炭产品的比表面积和孔容可达2996m2/g和1.64cm3/g。该产品附加值高,在吸附领域特别是在双电层电容器的电极材料领域有广阔的应用前景。更多还原

【Abstract】 High specific surface area activated carbon was prepared frombamboo by chemical activation with KOH.The influenceof activation parameters on the final products was investigated by varying the KOH/bamboo ratio,activation temperature andhold ti me.The samples were characterized by nitrogen adsorptionisotherms at 77K.The specific surface area and pore volume ofactivated carbon were calculated by BET and t-plot method.The possible activation mechanism was also proposed.Under theexperi mental conditions,the opti mumconditions for preparing high specific surface area activated carbon are at a KOH/precur-sor ratio of 1.0,an activation temperature of 800℃and a hold ti me of 2h.With these experi mental conditions,an activated car-bon with a BETsurface area of 2996 m2/g and a total pore volume of 1.64cm3/g was produced.The product is a novel materialfor adsorption and for the applicationin electric double-layer capacitors.更多还原