摘要
本文研究了云南沱茶自水溶液中吸附稀土镧（Ⅲ）离子的特性和多种表面活性剂对吸附的影响．发现沱茶对镧（Ⅲ）有强吸附作用，ｐＨ显著影响其吸附量．吸附规律符合Ｌａｎｇｍｕｉｒ方程，最大吸附量可达１５ｍｇ／ｇ．
The adsorption characteristics of rare earth ion La(Ⅲ) on Yunnan bowl tea surface from aqueous solution and effect of varions surfactants on the adsorption bas been studied.It was found that Yunnan bowl tea can adsorb strongly La(Ⅲ) and pH affect markedly the adsorption amount.The adsorption law of La(Ⅲ) on Yunnan bowl tea surface obeyed the largmuir equation.The maximum adsorption amount of La(Ⅲ) can reach 15mg/g.A comprehensive adsorption model was suggested according to the experimetal results.
出处
《云南大学学报（自然科学版）》
CAS
CSCD
1999年第4期265-268,共4页
Journal of Yunnan University(Natural Sciences Edition)
关键词
云南沱茶
镧离子
分离
富集
吸附剂
沱茶
Yunnan bowl tea
adsorption
lanthanum(Ⅲ) ion
surfactant
