摘要
文章研究了活性炭纤维(ACF)对乙醇的吸附性能以及表面基团和形态对吸附性能的影响,并以提高活性炭纤维对乙醇的吸附性能为出发点,采用无机盐浸渍及二次热处理方法对ACF进行表面改性,改性前ACF对乙醇的吸附容量为376mg/g,经过无机盐浸渍并二次热处理改性的ACF对乙醇的吸附容量达到了516mg/g,穿透时间也由改性前的30min延长到了80min。结果表明,无机盐浸渍和二次热处理改变了ACF表面基团和形态,从而提高了ACF对乙醇的吸附性能。
Adsorption properties of ethanol vapor and the influence of surface functional groups and structure were studied. ACF was modified by post-carbonizing and/or dipping in a certain inorganic salt solution to improve the adsorption capacity. After modifying,the adsorption capacity is greatly improved,such as 376mg/g and 516mg/g,for ACF0 and ACF3 respectively. The breakthrough time was also increased tremendously,30min and 80min for ACF0 and ACF3 respectively. The results suggested that impregnant and post-carb...
出处
《环境科学与技术》
CAS
CSCD
北大核心
2010年第12期160-163,共4页
Environmental Science & Technology
关键词
活性炭纤维
乙醇吸附
改性
activated carbon fiber
adsorption of ethanol vapor
chemical modification
