NaOH treatment demonstrated an increasing trend in exposed carboxyl groups on the surface, with a remarkable increase in all NaOH-treated groups: 0.024 ± 0.005 mM/g after 4 h of treatment and 0.052 ± 0.003 mM/g after 8 h.
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NaOH treatment demonstrated an increasing trend in exposed carboxyl groups on the surface, with a remarkable increase in all NaOH-treated groups: 0.024 ± 0.005 mM/g after 4 h of treatment and 0.052 ± 0.003 mM/g after 8 h.