With most recent studies being focused on the development of advanced chemical adsorbents, this paper investigates the possibility of using two natural low-cost materials for selective adsorption. Heavy metals have many environmental issues such as animal and plant death, reduced rates of reproduction and the decrease of ecosystem diversity [1]. While dyes are difficult to treat as the colour tends to hold strong even after the conventional removal processes [2]. There are more than 100,000 commercially available dyes with over 700,000 tons produced annually. The presence of some of these dyes even in very small amounts i.e. < 1 mg.dm3 is undesirable [3].
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