【摘要】 本文报道了由氧化铝的水悬浮液的电位滴定数据得到的扩散双层模型、恒定电容模型和三层模型的参数，即本征表面酸度常数、本征表面络合常数和双电层的电容，并用这些参数计算作为ｐＨ值和离子强度函数的表面电行密度、表面电势和表面各组分的分布。更多还原

【Abstract】 The surface acidity constants, surface complexation constants and capacities for diffuse double layer model (DDLM), constant capacitance model (CCM) and triple layer model (TLM) at alumina/water interface were respectively determined from the potentiometric titration data, the measurements were performed in NaNO3 solutions of different concentrations from 0. 01 to 1. 0 mol/L. Based on these parameters, a estimation of variation of the surface charge, distributions of Potentials and surface species concentrations as a function of pH and ionic strength is presented in this paper. An acceptable description of the experimental data can be given in terms of the constant capacitance model or triple layer model.更多还原