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A study was made of the adsorption of anthocyanin dye onto spongin-based marine demosponge skeletons of the species Hippospongia communis. The influence of time, dye concentration, ionic strength, pH and temperature on adsorption efficiency was assessed. Adsorption kinetics was analyzed using pseudo-first and pseudo-second-order models, and the pseudo-second-order model was found to represent the...
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