利用低温竹炭制备竹活性炭初步研究  

Preparation of Bamboo Activated Charcoal by Low Temperature and Its Performance Study

作　　者：李文珠[1] 王秋华 章卫钢[1] 陈再华 张文标[1] 

机构地区：[1]浙江农林大学工程学院国家木质资源综合利用工程技术研究中心,浙江临安311300 [2]浙江省龙游县乡镇林业工作站,浙江龙游323402 [3]浙江富来森能源科技有限公司,浙江丽水323000

出　　处：《世界竹藤通讯》2010年第5期14-17,共4页World Bamboo and Rattan

基　　金：浙江省科学技术厅项目(2008C32014)

摘　　要：选用低温竹炭为原料、氢氧化钾为活化剂,制备不同炭碱比和不同活化时间的竹活性炭。运用傅立叶红外光谱议(FTIR)、比表面积测定仪(BET)等仪器对竹活性炭表面官能团、比表面积和孔径结构及比电容进行了测试和分析。结果表明,炭碱比1:4、活化温度700℃、活化时间3h条件下制备的竹活性炭,比表面积为2897.7m2/g,总孔容为1.340cm3/g,平均孔径为2.59nm,亚甲基蓝吸附值为27.7ml/0.1g,碘吸附值为1920mg/g,作为超级电容器(EDLC)的电极,其比电容为114.4F/g。Bamboo activated charcoals with different KOH/carbon ratios and different activation time were prepared using low-temperature charcoal as materials,and KOH as an activator.And then,the surface functional groups,Specific surface area,pore structure and specific capacitance of bamboo activated charcoal were analyzed using Fourier Transform Infrared Spectrometer,Specific Surface Area Analyzer,etc.The result showed that：the bamboo activated charcoals produced under KOH/carbon ratio of 1：4,activation temperature 700℃and activation time 3h boasted the specific surface area of 2897.7 m^2/g,the total pore volume of 1.34 cm^3/g,average pore size of 2.59 nm,methylene blue adsorption of 27.7 ml/0.1g,iodine adsorption value of 1920 mg/g.As the electrodes of super-capacitor（EDLC）,it had the specific capacitance of 114.4 F/g.

关 键 词：低温竹炭 碱活化 竹活性炭 比电容 

分 类 号：TQ424.1[化学工程]