摘要
粘胶基活性炭纤维(ACF)经微波辐射处理后,通过低温氮气吸附法测定了比表面积SBET,用扫描电镜(SEM)表征了其显微结构,研究了活性炭纤维对喹啉模拟废水的吸附特性.结果表明,经微波辐射后的活性炭纤维其BET表面积由2 1 3.8 m2/g,增加到1 9 1 7.9 m2/g,ACF表面粗糙,增加了许多新的烧蚀点;对喹啉废水的吸附符合Freundlich吸附等温式;改性后的ACF吸附速率加快,2 0 min就达到吸附平衡,pH>8吸附率显著降低.吸附穿透实验表明,喹啉入口速率越大,浓度越高,其出水浓度越高,微波再生后的ACF仍有较好的吸附性能.
In a study of the adsorption capability of ACF for quinoline-containing wastewater, the specific surface area （SBET） of viscose-based activated carbon fiber （ACF） modified by microwave was measured by the nitrogen adsorption method, and the fiber surface was imaged using SEM. The experimental results showed that the SBET of ACF modified by microwave increased from 213.8 m^2/g to 1 917.9 m^2/g. ACF surface was rough,and many new ablation points appeared. The adsorption equilibrium of Freundlich for quinoline was qe = 102. 8 C^0.3299 and qe= 108.8 C^0.3161. The dynamic adsorption breakthrough curve was determined by static and dynamic experiments. The results indicated that the adsorption capacity was large and adsorption velocity was fast.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第4期56-61,共6页
Journal of Southwest China Normal University(Natural Science Edition)
基金
重庆市教委资助项目(KJ070703)
关键词
活性炭纤维
吸附
喹啉
再生
activated carbon fiber （ACF）
adsorption
quinoline
regeneration
