热处理对钠长石修复水体中Cd^(2+)的实验研究

Adsorption of Heat-treated Albite to Cd^(2+)in Water

热处理前后钠长石的结构变化及其对水体中Cd^(2+)的修复实验研究表明:热处理后钠长石的微结构发生了一定的变化,且对常温水体中的Cd^(2+)修复能力明显提高。钠长石修复能力的提高应该与其结构的微小变化关系密切,推测为热处理使钠长石的内部结构发生变化致使架状硅酸盐中阳离子与Cd^(2+)的交换能力增强。与其它温度热处理的钠长石对比,800℃热处理的钠长石有较高的修复能力。

The comparision experiments between heated and non-heated albite show that there are slight structural changes after being heated.It is indicated that the mini changes of the inner structure of albite are related with the heating process.During the process of eliminating Cd^(2+),the eliminating ability of Cd^(2+) of albite is obviously improved after high temperature treatment.This is because the exchanging increasing between the cations of tectosilicate and Cd^(2+) is improved due to the inner structural changes after being heated.In addition,compared with other albite treated under different temperatures,the treatment of 800℃contributes to the strongest repairing ability.