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林产化学与工业 ›› 2013, Vol. 33 ›› Issue (2): 108-112.doi: 10.3969/j.issn.0253-2417.2013.02.019

• 研究报告 • 上一篇    下一篇

KOH活化高比表面积椰壳活性炭的制备及其性质研究

王国栋, 邓先伦, 朱光真, 郭昊   

  1. 中国林业科学研究院 林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局 林产 化学工程重点开放性实验室;江苏省 生物质能源与材料重点实验室, 江苏 南京 210042
  • 收稿日期:2012-07-09 修回日期:1900-01-01 出版日期:2013-04-30 发布日期:2013-04-30
  • 通讯作者: 邓先伦(1956-),男,研究员,硕士生导师,主要从事炭质吸附材料的制备与应用等工作;E-mail:dengxianlun_483@163.com。

Preparation and Characterization of High Specific Surface Area Activated Carbon from Coconut Shell Carbide by KOH

WANG Guo-dong, DENG Xian-lun, ZHU Guang-zhen, GUO Hao   

  1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. of Forest Chemical Engineering, SFA;Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China
  • Received:2012-07-09 Revised:1900-01-01 Online:2013-04-30 Published:2013-04-30

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。

关键词: 椰壳, 高比表面积活性炭, KOH法

Abstract: 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 coditions are as follows, i.e., impregnation ratio of 5 and reaction at 800 ℃ for 60 min.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.

Key words: coconut shell, high specific surface area activated carbon, KOH method

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