磁场对氢氧化铁胶体ζ电位的影响

The Effect of Magnetic Field on ξ Potential of Ferric Hydroxide Colloid

本文研究了磁场对氢氧化铁胶体ζ电位的影响。实验表明在磁场作用下,胶体的ζ电位、电导率和聚沉值都发生变化,其值与磁场强度、磁化时间及胶体浓度有关。同时用电镜观察了磁作用前后的胶体颗粒,并对实验结果进行了讨论。

In this paper, the effect of magnetic field on ζ potential of ferric hydroxide colloid is studied. The experiment result shows that there is a pronounced change in ζ potential, electric conductivity and coagulation value of the colloid when it is magnetized. The magnitude of this effect is found to be connected with the intensity of magnetic field, the time for the colloid to be magnetized and the concentration of the colloid. In the meantime, we have observed the difference before and-after the magnetization of the colloid under an electron microscope. The results of our experiment are also discussed.