Influence of alkali and acidic treatment on sorption properties of Latvian illite clays

被引：2

作者：

Lakevics, Vitalijs ^{[1
]}

Stepanova, Valentina ^{[1
]}

Skuja, Ieva ^{[1
]}

Dusenkova, Inga ^{[1
]}

Ruplis, Augusts ^{[1
]}

机构：

[1] Riga Tech Univ, Inst Gen Chem Engn, LV-1048 Riga, Latvia

来源：

ENGINEERING MATERIALS & TRIBOLOGY XXII | 2014年 / 604卷

关键词：

adsorption; Latvian clays; illite; specific surface; acidic treatment; alkali; METHYLENE-BLUE; MINERALS; REMOVAL;

D O I：

10.4028/www.scientific.net/KEM.604.71

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The adsorption of monovalent organic cationic methylene blue dye on natural and modified with hydrochloric acid and sodium hydroxide Latvian clay samples from water solutions has been studied. It was established that alkali and acidic treatment of Latvian clay samples changes their sorption characteristics. It was found that increasing concentration of hydrochloric acid from 5 mass % up to 15 mass % decreases adsorption of clay samples proportionally to the acid concentration. Increasing concentration of sodium hydroxide from 5 mass % to 15 mass %, BET specific surface area of the modified clay samples is smaller than BET specific surface area of the natural clay sample. The studies have proven that adsorption ability of Latvian clays is sufficient for using them in waste water purification from admixtures of organic dyes.

引用

页码：71 / 74

页数：4

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