一、固体表面双电层理论固体粒子荷电的来源 固体粒子在液体中荷电,其来源有两个:一是固体在溶液中吸附阳离子和阴离子的能力有差别。如果吸附阳离子数比阴离子多,则固体带正电性,溶液带负电性。反之,若吸附阳离子数比阴离子少,则固体带负电。例如:在pH值小于石英的零电点(小于1.8) First, the solid surface theory of electric double layer solid particles charge the source of solid particles charged in the liquid, the source of two: First, the ability of solids in solution to absorb cation and anion differences. If the number of adsorption cations than anions, the solid with positive, the solution is negative. Conversely, if the number of adsorbed cations is less than the number of anions, the solid is negatively charged. For example: at a pH less than the zero point of quartz (less than 1.8)