Cationization of cellulosic materials - Possibility of application in water purification systems

Abstract

The production of a quality adsorbent from activated carbon is very expensive, and its regeneration is often accompanied by difficulties. Therefore, the attention of many researchers is focused on the research of materials that are easy and cheap to produce in order to reduce the proportion of activated carbon for purification or to be used only in the last stage of filtration. The paper provides an overview of the cationization of cellulosic materials. Special emphasis is given to cotton cationized during mercerization with short-chain cationic compounds and its application in water treatment systems. This modification changes the cellulose charge, which completely changes the dye-cellulose and surfactant-cellulose system, and as such represents an exceptional potential for environmental protection, i.e. waste disposal of textile factories.