生物质材料荷叶对碱性品红的吸附性能研究  

Study on Adsorption Performance of Basic Fuchsin onto Biomass Material Lotus Leaf

作　　者：韩秀丽[1] 王伟[1] 李红萍[1,2] 

机构地区：[1]郑州大学化工与能源学院,河南郑州450001 [2]三门峡市环境监测站,河南三门峡472000

出　　处：《郑州大学学报（工学版）》2011年第3期10-14,共5页Journal of Zhengzhou University（Engineering Science）

基　　金：河南省重点科技攻关项目(082102363101)

摘　　要：研究了吸附时间、溶液pH值、吸附剂用量、染料初始浓度、盐离子浓度以及温度对荷叶吸附水溶液中碱性品红(BF)的影响.Langmuir,Freund lich,Koble-Corrigan等温吸附模型对吸附平衡数据进行非线性回归分析.结果表明:Kob le-Corrigan等温线方程对平衡实验数据拟合良好.荷叶对碱性品红的吸附行为符合准二级动力学模型,该吸附属于化学吸附.生物质吸附剂荷叶对水溶液中的碱性品红有很好的去除能力.The potential of lotus leaf for the removal of basic fuchsin（BF） from aqueous solution was investigated.The experiments were performed under various conditions including contact time,adsorbent dose,initial BF concentration,solution pH, salt ionic strength and temperature.The Langmuir,Freundlich,Koble-Corrigan isotherm models were employed to discuss the adsorption behavior.The results of analysis indicated that the equilibrium data were perfectly represented by Koble-Corrigan isotherm.The kinetic studies indicated that adsorption process followed the pseudo second-order mode,suggesting that the adsorption might be a chemisorption process.The present study implied that lotus leaf was a promising candidate as low cost biosorbent for the removal of BF from aqueous solution.

关 键 词：吸附 碱性品红 荷叶 等温线 动力学 

分 类 号：X703.1[环境科学与工程—环境工程]