摘要
以椰壳炭化料为原料,通过KOH活化法制备高比表面积活性炭,并探索温度、时间和活化比对活性炭吸附性能的影响。通过单因素试验发现,活化温度800℃,活化时间60 min,活化比值为5的条件下活性炭的吸附性能最优。制备出的活性炭比表面积为3 360 m2/g,总孔孔容为1.798 cm3/g,平均孔径为2.140 nm,对碘的吸附性能为2 809 mg/g,对亚甲基蓝溶液的吸附性能为675 mg/g。
Coconut shell carbide was used as raw material to prepare high specific surface area activated carbon activated by KOH. The relationships between the adsorption ability and the factor of soaking time, activating temperature and impregnation ratio （KOH/Raw material） were also investigated. From single factor experiments, the suitable preparation coalitions are as follows, i. e. , impregnation ratio of 5 and reaction at 800 ℃ for 60 rain. The basic properties of prepared product are as follows, the surface area is 3 360 m2/g, the total pole volume of pores is 1. 798 cm3/g, the average pore width is 2. 140 nm. The iodine number and methylene blue value of the activated carbon are 2 809 mg/g and 675 mg/g, respectively.
出处
《林产化学与工业》
EI
CAS
CSCD
北大核心
2013年第2期108-112,共5页
Chemistry and Industry of Forest Products
基金
林业公益性行业科研专项(201004051)
关键词
椰壳
高比表面积活性炭
KOH法
coconut shell
high specific surface area activated carbon
KOH method
