摘要
将硅酸镁颗粒与聚偏氟乙烯的N-N二甲基乙酰胺溶液充分混合后挤出成型,烘干得到硅酸镁成型吸附剂,并利用BET、SEM等方法分析表征样品。研究了它对亚甲基蓝(methylene blue,MB)的吸附性能。结果表明:硅酸镁成型吸附剂对MB的吸附过程符合二级吸附动力学模型,热力学研究表明对MB的吸附符合Freundlich吸附等温式。
The magnesium silicate particles and the DMF solution of PVDF are mixed and molded, dried to obtain the molded magnesium silicate adsorbent. The characteristics of the molded adsorbent are specified by BET and SEM. Adsorption of MB by the molded adsorbent was investigated. A two-step first-order rate kinetics was observed for the adsorption process which follows the Freundlich-type adsorption isotherm.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2013年第11期2178-2182,共5页
Bulletin of the Chinese Ceramic Society
基金
中央高校基本科研业务费实验室研究基金项目(841351011)
关键词
硅酸镁
成型吸附剂
亚甲基蓝
吸附热力学
吸附动力学
magnesium silicate
molded adsorbent
methylene blue （ MB ）
adsorption thermodynamics
adsorption kinetics
