KOH活化法制备棉花秸秆活性炭的研究  

Preparation of Activated Carbon from Cotton Stalk Using Potassium Hydroxide as Activation Agent

作　　者：焦其帅[1] 胡永琪[2] 陈瑞珍[1] 郝宏强[1] 庞秀[1] 

机构地区：[1]河北化工医药职业技术学院化学与环境工程系,河北石家庄050026 [2]河北科技大学化学与制药工程学院,河北石家庄050018

出　　处：《林产化学与工业》2012年第1期89-92,共4页Chemistry and Industry of Forest Products

摘　　要：以棉花秸秆为原料,采用KOH活化法制备活性炭样品,探讨了炭化、活化及后处理过程中各实验条件对活性炭样品性能的影响。综合考虑活性炭样品的性能及得率,得出较优的实验条件为:炭化温度450～500℃、碱炭比值1.0、活化温度800℃、活化时间120 min;在较优条件下制得活性炭的比表面积2 312 m2/g,碘吸附值1 936 mg/g,亚甲基蓝吸附值392 mg/g;孔径分布以微孔为主;表面含有羟基(—OH)、活泼氢(—H)等基团。Activated carbon was prepared from cotton stalk by chemical activation with potassium hydroxide under different operation conditions. The influences of operation parameters on the properties of activated carbon were discussed. The experiment results showed that the optimum conditions were as followed：

关 键 词：活性炭 氢氧化钾 棉花秸秆 

分 类 号：TQ351[化学工程] TQ424.19