KOH活化废弃麻制备活性炭及其结构表征  

Preparation and Characterization of Activated Carbon from Potassium Hydroxide Activated Linen Fabric Waste

作　　者：牛耀岚[1] 马承愚[1] 李登新[1] 李学文[1] 

机构地区：[1]东华大学环境科学与工程学院,上海201620

出　　处：《高等学校化学学报》2010年第10期1929-1933,共5页Chemical Journal of Chinese Universities

基　　金：国家"八六三"计划项目(批准号:2006AA06Z132);教育部科学技术研究重点项目(批准号:107124);教育部生态纺织重点实验室项目(批准号:ECO-KF-2007-10)资助;上海市重点学科建设项目(批准号:B604)

摘　　要：以日常生活中废弃麻纺品为原料,KOH为活化剂,采用炭化和活化两步法制备麻质活性炭(LAC).采用比表面积测定仪在77K下测定其N2吸附-脱附等温线,通过Langmuir方程、BET方程和BJH法计算其比表面积、孔体积和孔径分布.结果表明,麻质活性炭的BET比表面积为1387.473m2/g,Langmuir比表面积为1790.573m2/g,吸附累积总孔容达0.415cm3/g;采用扫描电子显微镜(SEM)、X射线衍射分析仪以及红外光谱仪对麻质活性炭的结构进行了表征,分析其表面形貌、微观结构及表面化学官能团.In this study,activated carbon was prepared from the linen fabric waste in our daily life using KOH as activator.There were two steps,carbonization and activation in the production of linen-based activated carbon.For prepared activated carbon,a specific surface area and pore size distribution analyzer were employed to determine the N2 adsorption-desorpion at 77 K.The Langmuir equation,BET equation and BJH method were used to calculate the specific surface area,pore volume and pore size distribution.BET specific surface area is 1387.473 m2/g,Langmuir surface area is 1790.573 m2/g and adsorption cumulative pore volume is up to 0.415 cm3/g.The scan electric microscope（SEM）,X-ray diffraction（XRD） and FTIR were also used to investigate the morphology,crystallite structure and chemistry structural characteristics of the prepared activated carbon,respectively.

关 键 词：活性炭 废弃麻 氢氧化钾 活化 

分 类 号：O613[理学—无机化学]