摘要
利用马尾藻对水中重金属Ni2+进行吸附,研究了溶液的pH值、初始Ni2+浓度、马尾藻的粒度及处理温度等因素对Ni2+的吸附特性的影响.得到最佳pH值范围4～7及pH值6.62时最大吸附量0.668mmol/g,并用Langmuir和Freundlich方程对吸附等温线进行了拟合,前者拟合效果较好.
Sargassum natans as a biosorbent of nickel is investigated at different pH value, initial nickel concentration, particle sizes, and treated temperatures of Sargassum natans. Nickel adsorption strongly depends on pH and has a wide range of proper pH of 4～7. The maximum of nickel uptake is 0.668 mmol/g at pH 6.62. The adsorption isotherms have been simulated by Freundlich and Langmuir equations,the latter has simulated the adsorption processes very well (R^2>0.998).
出处
《烟台大学学报（自然科学与工程版）》
CAS
2004年第1期28-32,共5页
Journal of Yantai University(Natural Science and Engineering Edition)
基金
山东省教育厅基金资助项目(J01C12).
