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Chitosan beads (CHB) were prepared and studied in a batch mode operation for the adsorption of Reactive Red 120 dye from aqueous solution. Characterization on the surface of CHB was achieved by using point of zero charge (pHpzc) method, Fourier transform infrared spectroscopy, and scanning electron microscopy. Adsorbent dosage (0.02–1.5 g), initial pH solution (4–12), initial dye concentrations (30–400 mg/L),...
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