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在不同pH值的电解质水溶液中,测定了超微细粘土的交换率和分维数随pH值的 变化.研究了锌离子与超微细粘土颗粒的交换等温线,在较大的浓度范围内出现台阶性吸 附.用小角度X射线衍射法(SAXS)研究了超微细粘土(高岭石)及其与锌离子交换后 的分数维数.
In the different pH aqueous electrolyte solution, the change of ultrafine clay and the change of fractal dimension with the pH value were measured. The exchange isotherms of zinc ions and ultrafine clay particles were studied, and step adsorption occurred in the range of larger concentration. The ultrafine clay (kaolinite) and its fractional number after zinc ion exchange were studied by using small angle X-ray diffraction (SAXS).