Kinetics and equilibrium isotherms on methyl violet adsorption by Arundo donaz root activated carbon

摘要：

Arundo donax root was used to prepare activated carbon by H3PO4 activation for the removal of methyl violet (MV). The activated carbon has a micro-mesoporous structure with BET surface area 1392 m2/g. Pseudo-second-order model could predict the adsorption kinetics for the entire process. The sorption involved several stages and the actual rate controlling step was film diffusion for the whole process. The equilibrium data were better represented by Freundlich model than Langmuir model. The adsorption of methyl violet onto Arundo donax root activated carbon was spontaneous and endothermic.

关键词： activated carbon Arundo donaz root kinetic model mechanism isotherms methyl violet

作者: Chenglu Zhang Yan Li Jian Zhang Cong Li

作者单位: School of environmental science and engineering Shandong University Jinan,China

会议类型: 国际会议

会议名称: The 3rd International Conference on Bioinformatics and Biomedical Engineering(iCBBE 2009)(第三届生物信息与生物医学工程国际会议)

会议地点: 北京

会议语种:英文

页码: 1-4

在线出版日期: 2009-06-11（万方平台首次上网日期，不代表论文的发表时间）