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(A) Adsorption kinetic curves of SA-g-PNaA and Semi-IPN2 hydrogels; (B) fitting curves of t/q t versus t; (C) the fitting curves of t/q t versus t (≤120 s); (D) curves of log(q e− q t) versus t; (E) curves of log (q e− q t) versus t (≤50 s); (F) fitting curves of t/q t versus t (>120 s).
