摘要
本文采用氟离子选择电极直接插在氧化铝粉体的悬浮液中,测出氧化铝对水中氟离子的吸附平衡数据。实验结果表明,过滤并不影响吸附等温线的形状,但影响吸附量,使之变小;表面活性物质十六烷基三甲基溴化铵对于氟离子在氧化铝表面吸附的影响不符合多组份体系的竞争吸附规律。
In this paper the adsorption equilibrium data of aqueous fluorion on alumina (Al_2O_3) surface have been measured by inserting directly the fluorion selected electrodes in suspension of alumina pouder. It shows that (1) the amount of adsorption are effected by filter and becomes smaller; but the shapes of adsorption isothem are not elf coted. (2) The effect of surfactants cetyl trimethyl ammonium bromide (CTAB) on the adsorption of F^- on Al_2O_3 surface does not accord with general competition adsorption in multicomponent system.
关键词
氧化铝
粉体
自溶液
氟离子
吸附
Adsorption
Surfactant
Ion selected electrode.
