Abstract In this research, a magnetic graphene oxide modified with ionic liquid has been synthesized and used as a powerful nanocomposite for the removal of lead (Pb²⁺) ions and brilliant blue (BB) dye from a water sample. This nanocomposite was characterized by using EDS, FTIR, SEM, and VSM techniques, which confirmed the successful formation of the desired nanocomposite and good immobilization of the ionic liquid. The ultraviolet-visible (UV-Vis) and atomic absorption (AA) spectroscopy techniques were employed to quantify the extent of removal of Pb²⁺ ions and BB dye. The removal percentages of Pb²⁺ ions and BB dye by the prepared nanocomposite were 94% and 96%, respectively, demonstrating its excellent performance. According to the Langmuir isotherm, the maximum adsorption capacities of the nanocomposite toward Pb²⁺ ions and BB dye were achieved to be 83.34 and 84.76 mg g⁻ ¹, respectively. Also, this nanocomposite was recoverable and reusable at least three times.
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Dadvar et al. (2024) studied this question.
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