Modification of graphene oxide with imidazolium-based ionic liquid for significant sorption of La(III) and Pr(III) from aqueous solutions

• Published in: Applied water science Vol. 13; no. 7; pp. 152 - 14
• Main Authors: Elgoud, Elsayed Mustafa Abu, Abd-Elhamid, Ahmed Ibrahim, Aly, Hisham Fouad
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01-07-2023; Springer Nature B.V; SpringerOpen
• Subjects: Adsorption; Aquatic Pollution; Aqueous solutions; Comparative Law; Composite; Earth and Environmental Science; Earth Sciences; Epichlorohydrin; Ferrocyanide; Fission products; Graphene; Hydrogeology; Imidazole; Immobilization; Industrial and Production Engineering; International & Foreign Law; Ionic liquids; Ions; Iron cyanides; Isotherms; Lanthanum; Metal ions; Metals; Nanotechnology; Original Article; Potassium; Potassium ferrocyanide; Praseodymium; Private International Law; Sorption; Waste Water Technology; Water Industry/Water Technologies; Water Management; Water Pollution Control; GO; Potassium ferrocyanide; Lanthanum; Composite; Imidazole; Praseodymium
• ISSN: 2190-5487; 2190-5495
• DOI: 10.1007/s13201-023-01955-w

A straightforward ferrocyanide immobilization on the surface of graphene oxide (GO) was conducted for rapid and efficient adsorption capacity for lanthanum and praseodymium from an aqueous solution. The GO was mixed with 1-methyl imidazole in the presence of epichlorohydrin to form GO-imidazole-Cl and thereafter suspended in a potassium ferrocyanide solution to fabricate GO-imidazole-FeCN. The prepared materials were characterized with different advanced techniques confirming the preparation method. The adsorption ability of GO-imidazole-FeCN towards La(III) and Pr(III) ions was evaluated. Moreover, the adsorption isotherm showed that the sorption process was fitted with the Langmuir isotherm model with a considerable maximum adsorption capacity of 781.25 mg g
−1
for La(III) and 862.07 mg g
−1
for Pr(III). The thermodynamic studies showed that the adsorption of both metal ions was spontaneous and endothermic. In addition, the adsorbent showed excellent adsorption–desorption behavior over 5 times, suggesting that GO-imidazole-FeCN may be considered a potential candidate for La(III) and Pr(III) removal from different metal ions which present in fission products.