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In the present work, a facile two-step approach using polydopamine (pD) as a platform was developed to immobilize polyaspartate onto silica gels (SG) for enhancing the removal of methylene blue (MB) from aqueous solution. The chemical structures of the native and modified SG were characterized by FT-IR, SEM, and TGA. The adsorption behaviors of MB on SG, the pD-coated silica gels (SG-pD), and the...
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