FAAS法研究纳米凹凸棒土对铅(Ⅱ)的吸附行为  

Adsorption Behavior of Pb(Ⅱ) on Nanometer Attapulgite with FAAS

作　　者：刘向云[1] 李山鹰[1] 

机构地区：[1]河南城建学院,河南平顶山467044

出　　处：《广州化工》2010年第8期172-174,188,共4页GuangZhou Chemical Industry

摘　　要：通过FAAS法探讨纳米凹凸棒土对Pb(Ⅱ)的吸附行为,考察了影响其吸附和解脱的主要因素以及共存离子的影响,研究了纳米凹凸棒土对Pb(Ⅱ)的吸附等温线和静态饱和吸附容量。实验结果表明,纳米凹凸棒土对Pb(Ⅱ)的最大静态饱和吸附容量为25.5mg/g,一次再生和二次再生的纳米凹凸棒土的最大静态饱和吸附容量分别为26.5mg/g和26.3mg/g,结果表明纳米凹凸棒土具有较好的再生能力。The adsorption behavior of Pb（Ⅱ） on nanometer attapulgite were studied systemically by FAAS,and the effects of absorption,disentangle,and interfering ions on the recovery were explored.The adsorption isotherm and the maximum adsorption capacity were presented.The results demonstrated that the maximum adsorption capacity was 25.5mg/g,and the adsorption capacity of one time regenerate and two time regenerate nanometer attapulgite toward Pb（Ⅱ） were found to be 26.5mg/g and 26.3mg/g,respectively.The results obtained indicated that the nanometer attapulgite had good regenerate capability.

关 键 词：纳米凹凸棒土 吸附 铅(Ⅱ) 火焰原子吸收光谱法 

分 类 号：TQ170.7[化学工程—硅酸盐工业]