摘要：

用液相共沉淀法制备锌铝类水滑石颗粒。在500℃下焙烧类水滑石转化为锌铝复合氧化物, 并用XRD、TG/DTA和FT-IR等对类水滑石和锌铝复合氧化物进行表征分析。用锌铝复合氧化物吸附水中的阴离子表面活性剂, 对实验条件和主要影响因素进行研究, 并对其吸附机理进行了探讨, 实验结果表明, 锌铝复合氧化物对阴离子表面活性剂去除效果明显。

关键词: 类水滑石, 锌铝复合氧化物, 吸附, 阴离子表面活性剂

Abstract:

A hydrotalcite-like compound has been prepared by coprecipitation method. The hydrotalcite-like compound is calcined at 500 °C, transformed into Zn-Al-Omixed oxide.The hydrotalcite-like compound and Zn-Al-Al-O mixed oxide are characterized by XRD, TG/DTA and FT-IR respectively. The removal of anionic surfactants from aqueous solution by the Zn -Al -O mixed oxide has been investigated. The conditions of the experiment and the influential factors are studied and the adsorption mechanismis discussed. The results showthat the Zn-Al-O oxide has remarkable effect on the removal rate of anionic surfactants.

Key words: hydrotalcite-like compound, Zn- Al- O mixed oxide, adsorption, anionic surfactants

中图分类号: 

• X703