易水解二价金属离子在金属氧化物上吸附的等电点

IEP of Adsorption of Hydrolysable M(Ⅱ) Ion at Metal Oxide-aqueous Interface

提出了易水解二价金属离子在金属氧化物表面吸附的等电点与吸附分数的关系 ,表明等电点移动不仅与吸附量有关 ,而且与吸附质的表面水解产物提供H +的能力有关。

This paper deals with the relations between IEP and adsorption of hydrolysable metal ion at metal oxide aqueous interface. The result shows that IEP has relations not only with adsorption , but also with the proton donating ability of hydrolyzed product of adsorbate . A revision for Parks' equation is obtained.