硅铝胶改变膨润土端面电性的机理研究

A study of the mechanism of modified Bentonite edges with silica-alumina gel

制备了硅铝胶改性的膨润土,研究了硅铝胶改性对膨润土的重金属离子吸附性能的影响,并用XRD对改性土进行了分析;提出了硅铝胶作为改性剂改变膨润土端面电性的机理。结果表明,硅铝胶改性在膨润土端面发生,改性能显著提高膨润土吸附钴离子的能力。

The effect of the modification on the adsorption of heavy metal and the mechanism of modified bentonite edges with silica - alumina gel are investigated in this paper. The modified bentonites are analyzed with XRD. The result indicated that the modification, which happens on the edges of bentonite, strikingly ehnhanced their adsorption of cobalt ions.