Graphene Oxide/Polyvinyl Alcohol/Fe₃O₄ Nanocomposite: An Efficient Adsorbent for Co(II) Ion Removal

Table 2

The effect of K⁺ as an interfering ion to the adsorption of Co²⁺ ion onto GO/PVA/Fe₃O₄ nanocomposite⁽⁾.

Interfering ion	Fold ratio	Adsorption efficiency (%)
K^+	10	63.7
K^+	20	61.9
K^+	50	62.3
K^+	80	63.0

⁽⁾Experimental conditions: C_o = 100 mg·g⁻¹, pH = 5.2, T = 25 C, and m_adsorbent = 0.01 g.